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                                                                Exhibit 10.12
                             PARTICIPATION AGREEMENT



      THIS PARTICIPATION AGREEMENT (this "Agreement" herein), dated as of
November 12, 1997, is entered into by and among:

            (1)   KLA-TENCOR CORPORATION, a Delaware corporation ("Lessee");

            (2)   LEASE PLAN U.S.A., INC., a Georgia corporation ("Lessor");

            (3)   Each of the financial institutions from time to time listed in
      Schedule I hereto, as amended from time to time (such financial
      institutions to be referred to collectively as the "Participants");

            (4)   ABN AMRO BANK N.V., acting through its San Francisco
      International Branch, as agent for the Participants (in such capacity,
      "Agent"); and

            (5)   BANQUE NATIONALE DE PARIS, as co-agent for the Participants
      (in such capacity, "Co-Agent").

                                    RECITALS

      A.    Pursuant to a Phase IIA Participation Agreement dated as of December
29, 1995 (the "Phase IIA Participation Agreement") among Lessee, Lessor, certain
participants thereunder (the "Phase IIA Participants") and ABN AMRO Bank N.V.,
as agent for the Phase IIA Participants, and a Phase IIA Lease Agreement dated
as of December 29, 1995 (the "Phase IIA Lease Agreement") between Lessor and
Lessee, (1) Lessor purchased the land described in Part 1 of Exhibit A (as more
fully defined in Schedule 1.01, the "Tract 1 Land") and certain related
property; (2) Lessor leased such property to Lessee; and (3) the Phase IIA
Participants participated in the Phase IIA Lease Agreement by funding the
purchase price and other advances made on account of such property.

      B.    Pursuant to a Phase IIB Participation Agreement dated as of December
29, 1995 (the "Phase IIB Participation Agreement") among Lessee, Lessor, certain
participants thereunder (the "Phase IIB Participants") and ABN AMRO Bank N.V.,
as agent for the Phase IIB Participants, and a Phase IIB Lease Agreement dated
as of December 29, 1995 (the "Phase IIB Lease Agreement") between Lessor and
Lessee, (1) Lessor purchased the land described in Part 5 of Exhibit A (as more
fully defined in Schedule 1.01, the "Tract 5 Land") and certain related
property; (2) Lessor leased such property to Lessee; and (3) the Phase IIB
Participants participated in the Phase IIB Lease Agreement by funding the
purchase price and other advances made on account of such property.

      C.    In order to refinance the Phase IIA Lease Agreement, the Phase IIB
Lease Agreement and certain other lease agreements and to finance the
acquisition of certain additional property, Lessee has requested Lessor and the
Participants to provide to Lessee a certain lease facility. Pursuant to such
facility:


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            (1)   Lessor would:

                  (a)   purchase the land described in Part 2 of Exhibit A (as
            more fully defined in Schedule 1.01, the "Tract 2 Land"), the
            improvements thereto and certain related property designated by
            Lessee;

                  (b)   acquire a leasehold interest in the land described in
            Part 3 of Exhibit A (as more fully defined in Schedule 1.01, the
            "Tract 3 Land") and purchase the improvements to such land and
            certain related property designated by Lessee;

                  (c)   purchase the land described in Part 4 of Exhibit A (as
            more fully defined in Schedule 1.01, the "Tract 4 Land" and,
            collectively with the Tract 1 Land, Tract 2 Land, Tract 3 Land and
            Tract 5 Land, the "Land")) , the improvements thereto and certain
            related property designated by Lessee;

                  (d)   lease to Lessee all of Lessor's rights in the Land, the
            improvements thereto and certain related property designated by
            Lessee;

                  (e)   appoint Lessee as Lessor's agent to make certain
            improvements to the Tract 1 Land, Tract 3 Land, Tract 4 Land and
            Tract 5 Land;

                  (f)   make advances to finance such improvements and to pay
            certain related expenses; and

                  (e)   grant to Lessee the right to purchase such property; and

            (2)   The Participants would participate in such lease facility by
      (a) funding the termination payments to be made to the Phase IIA
      Participants and Phase IIB Participants (collectively, the "Phase II
      Participants") to terminate the Phase IIA Lease Agreement and Phase IIB
      Lease Agreement (collectively, the "Phase II Lease Agreements"); (b)
      funding the purchase prices to be paid by Lessor for the new property to
      be acquired by Lessor; (c) funding other advances to be made by Lessor;
      and (d) acquiring participation interests in the rental and certain other
      payments to be made by Lessee.

      C.    Lessor and the Participants are willing to provide such lease
facility upon the terms and subject to the conditions set forth herein.


                                    AGREEMENT

      NOW, THEREFORE, in consideration of the above Recitals and the mutual
covenants herein contained, the parties hereto hereby agree as follows:


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SECTION 1. INTERPRETATION.

      1.01. Definitions. Unless otherwise indicated in this Agreement or any
other Operative Document, each term set forth in Schedule 1.01, when used in
this Agreement or any other Operative Document, shall have the respective
meaning given to that term in Schedule 1.01 or in the provision of this
Agreement or other document, instrument or agreement referenced in Schedule
1.01.

      1.02. Rules of Construction. Unless otherwise indicated in this Agreement
or any other Operative Document, the rules of construction set forth in Schedule
1.02 shall apply to this Agreement and the other Operative Documents.


SECTION 2. LEASE FACILITIES.

      2.01. Acquisition, Lease, Amount Limitations, Etc.

            (a)   Acquisition, Lease, Etc. Subject to the terms and conditions
      of this Agreement (including the limitations set forth in Subparagraph
      2.01(b)):

                  (i)   On a date specified by Lessee pursuant to Subparagraph
            2.03(a) for the acquisition of the Tract 2 Property and Tract 3
            Property (the "Closing Date"):

                        (A)   Lessor shall (1) purchase (with funds provided by
                  the Participants) the Tract 2 Land, together with any
                  Appurtenant Rights thereto, all Improvements thereto and other
                  related property; and (2) acquire a leasehold interest in the
                  Tract 3 Land, together with any Appurtenant Rights thereto,
                  and purchase (with funds provided by the Participants) all
                  Improvements thereto and other related property;

                        (B)   Lessor shall pay (with funds provided by the
                  Participants) (1) to the Phase IIA Participants the amount
                  necessary to terminate the Phase IIA Lease Agreement (the
                  "Phase IIA Termination Payment") and (2) to the Phase IIB
                  Participants the amount necessary to terminate the Phase IIB
                  Lease Agreement (the "Phase IIB Termination Payment"); and

                        (C)   Immediately upon the purchase and acquisition by
                  Lessor of such property and the termination of the Phase IIA
                  Lease Agreement and Phase IIB Lease Agreement, Lessor and
                  Lessee shall execute (1) a Lease Agreement in the form of
                  Exhibit B (the "Lease Agreement"), pursuant to which Lessor
                  will lease to Lessee the Tract 1 Land, Tract 2 Land, Tract 3
                  Land and Tract 5 Land; (2) a Purchase Agreement in the form of
                  Exhibit C (the "Purchase Agreement"), pursuant to which Lessor
                  grants to Lessee the right to purchase such property under the
                  circumstances described therein and (3) a Construction Agency
                  Agreement in the form of Exhibit D (the "Construction Agency
                  Agreement"), pursuant to which Lessee agrees to the manner in
                  which it


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                  will construct certain improvements to the Tract 1 Land, Tract
                  3 Land and Tract 5 Land;

                  (ii)  On a date specified by Lessee pursuant to Subparagraph
            2.03(a) for the acquisition of the Tract 4 Property under (the
            "Tract 4 Acquisition Date"):

                        (A)   Lessor shall purchase (with funds provided by the
                  Participants) the Tract 4 Land, together with any Appurtenant
                  Rights thereto, all Improvements thereto and other related
                  property; and

                        (B)   Immediately upon the purchase and acquisition by
                  Lessor of such property, Lessor and Lessee shall execute
                  amendments to the Lease Agreement, the Purchase Agreement and
                  the Construction Agency Agreement to the extent necessary to
                  add such property to the property covered thereby; and

                  (iii) During the period (the "Commitment Period") beginning on
            the Closing Date and ending on November 1, 1998 (the "Outside
            Completion Date") or, if earlier, on the first Business Day of the
            first full calendar month immediately succeeding the earlier of (A)
            the Completion Date and (B) the date on which the Unused Total
            Commitment is $0 (the earlier of the Outside Completion Date and
            such first Business Day to be referred to as the "Commitment
            Termination Date"), Lessor shall, at the request of Lessee, make
            additional advances to pay Permitted Improvement Costs and Permitted
            Transaction Expenses ("Improvement/Expense Advances").

            (b)   Amount Limitations. The advances made by Lessor to purchase
      property and to terminate the Phase II Lease Agreements (collectively, the
      "Acquisition Advances") and the Improvement/Expense Advances made by
      Lessor (the Acquisition Advances and the Improvement/Expense Advances to
      be referred to collectively as the "Advances") shall be subject to the
      following limitations:

                  (i)   The aggregate amount of the Acquisition Advance and any
            Improvement/Expense Advance made by Lessor for each Tract of
            Property on the Acquisition Date for such Tract shall not exceed the
            sum of (A) the Closing Date Appraisal for such Tract of Property,
            plus (B) an additional amount allocated by Lessee to pay Permitted
            Transaction Expenses and Permitted Improvement Costs related or
            allocable to such Tract of Property, provided that the sum of all
            such additional amounts allocated by Lessee to pay Permitted
            Transaction Expenses and Permitted Improvement Costs for all of the
            Property does not exceed $500,000;

                  (ii)  Until Lessee delivers to Lessor the Plans and
            Specifications for any New Improvements to be constructed on any
            Tract of Property and an Expiration Date Appraisal for such Tract of
            Property pursuant to the following clause (iii), the aggregate
            amount of all Advances made by Lessor for such Tract of Property
            (including the Acquisition Advance and all Improvement/Expense
            Advances for 


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            such Tract of Property) shall not exceed the sum of (A) the Closing
            Date Appraisal for such Tract of Property plus (B) an additional
            amount allocated by Lessee to pay Permitted Transaction Expenses and
            Permitted Improvement Costs related or allocable to such Tract of
            Property, provided that the sum of all such additional amounts
            allocated by Lessee to pay Permitted Transaction Expenses and
            Permitted Improvement Costs for all of the Property does not exceed
            $2,000,000;

                  (iii) After Lessee delivers to Lessor the Plans and
            Specifications for any New Improvements to be constructed on any
            Tract of Property, together with a certificate of the architect for
            such New Improvements certifying that such Plans and Specifications
            are complete (which certification may indicate that such Plans and
            Specifications are complete as to a building shell or interior
            improvements only), and an Expiration Date Appraisal for such Tract
            of Property dated as of a recent date, each in form and substance
            satisfactory to Lessor and Agent, the aggregate amount of all
            Advances made by Lessor for such Tract of Property (including the
            Acquisition Advance and all Improvement/Expense Advances for such
            Tract of Property) shall not exceed the most recent Expiration Date
            Appraisal for such Tract of Property; and

                  (iv)  The aggregate amount of all Advances made by Lessor
            (including all Acquisition Advances and all Improvement/Expense
            Advances for all Tracts of Property) shall not exceed One Hundred
            Seventy-Five Million Dollars ($175,000,000) (the "Total
            Commitment").

            (c)   Additional Expiration Date Appraisals. If, after Lessee
      delivers to Lessor the Plans and Specifications for any New Improvements
      to be constructed on any Tract of Property and an Expiration Date
      Appraisal for such Tract of Property pursuant to clause (iii) of
      Subparagraph 2.01(b), Lessee revises, amends, supplements or otherwise
      modifies such Plans and Specifications for such Tract of Property
      (including the delivery of Plans and Specifications for interior
      improvements only) as permitted by the Construction Agency Agreement,
      Lessee may deliver to Lessor a subsequent Expiration Date Appraisal for
      such Tract of Property, dated as of a recent date prior to the date of
      delivery; provided, however, that Lessee may deliver only two (2)
      subsequent Expiration Date Appraisals for each Tract of Property. If a
      subsequent Expiration Date Appraisal is in form and substance satisfactory
      to Lessor and Agent, the amount limitation for such Tract of Property set
      forth in clause (iii) of Subparagraph 2.01(b) thereafter shall be set
      based upon such subsequent Expiration Date Appraisal.

            (d)   Tranches. Each Advance shall consist of a Tranche A Portion, a
      Tranche B Portion and a Tranche C Portion. For accounting purposes, the
      Tranche A Portion and Tranche B Portion of each Advance shall constitute
      debt and the Tranche C Portion shall constitute equity. If, at the time
      Lessee delivers any Expiration Date Appraisal for any Tract of Property
      pursuant to Subparagraph 2.01(b) or Subparagraph 2.01(c), the maximum
      amount of the Tranche A Proportionate Share permitted under FASB 13 is
      changed due to any change in the appraised value of the applicable Land
      and Improvements as set forth in such appraisal, the parties hereto shall
      enter into an


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      amendment to this Agreement amending Part A of Schedule I and the
      definitions of "Tranche A Proportionate Share" and "Tranche B
      Proportionate Share" to the extent necessary to satisfy the requirements
      of FASB 13, provided that no such amendment shall (i) increase the
      Proportionate Share of any Participant; (ii) change the ratio of any
      Participant's Tranche A Percentage to the Tranche A Proportionate Share or
      the ratio of any Participant's Tranche B Percentage to the Tranche B
      Proportionate Share; (iii) change any Participant's Tranche C Percentage
      or the Tranche C Proportionate Share; or (iv) decrease the Tranche A
      Portion to less than eighty percent (80%).

      2.02. Participation Agreement.

            (a)   Advances. Subject to the terms and conditions of this
      Agreement, each Participant severally, unconditionally and irrevocably
      agrees with Lessor to participate in each Advance made by Lessor in an
      amount equal to such Participant's Proportionate Share of such Advance;
      provided, however, that the aggregate amount of each Participant's
      Proportionate Share of all Advances shall not exceed such Participant's
      Commitment. Each Participant shall fund its Proportionate Share of each
      Advance as provided in Subparagraph 2.05(a). Each Participant's
      Proportionate Share of each Advance shall consist of such Participant's
      Tranche A Portion, Tranche B Portion and Tranche C Portion of such
      Advance.

            (b)   Payments. In consideration of each Participant's participation
      in each Advance made by Lessor, such Participant shall participate in the
      payments made by Lessee under this Agreement and the other Operative
      Documents as provided in Paragraph 2.06.

            (c)   Other Rights of Participants and Agent.

                  (i)   Until all amounts payable to Agent and Participants
            under this Agreement and the other Operative Documents are paid in
            full, Lessee shall deliver all notices for Lessor under this
            Agreement and the other Operative Documents to Agent at the office
            or facsimile number and during the hours specified in Paragraph
            7.01. Agent shall promptly furnish to Lessor and each Participant
            copies of each such notice and, in the case of each request for an
            Advance, shall notify each Participant of the amount of such
            Participant's Proportionate Share of the Advance requested thereby.

                  (ii)  Lessor is not an agent for Participants or Agent and may
            exercise or refrain from exercising its rights under this Agreement
            and the other Operative Documents in its discretion; provided,
            however that, until all amounts payable to Agent and Participants
            under this Agreement and the other Operative Documents are paid in
            full, (A) Lessor shall, subject to the limitations set forth in
            Section VI, be required to act or to refrain from acting upon
            instructions of the Required Participants as provided in Paragraph
            6.03 and (B) Agent may exercise any or all of the rights and
            remedies of Lessor, and shall be entitled to the other benefits
            afforded Lessor, under this Agreement and the other Operative
            Documents.


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                  (iii) Neither Agent nor any Participant shall have any right,
            title or interest in the Property except for the Lien therein
            granted to Agent, for the benefit of the Participants, under the
            Lessor Deed of Trust, the Lessor Security Agreement and the
            Assignment of Lease.

      2.03. Advance Requests.

            (a)   Acquisition Requests. Lessee shall request Lessor to make each
      Acquisition Advance under this Agreement by delivering to Agent an
      irrevocable written request in the form of Exhibit E, appropriately
      completed (an "Acquisition Request"), which specifies, among other things:

                  (i)   The Tract(s) of Property to be purchased or Phase II
            Lease Agreement(s) to be terminated;

                  (ii)  The amount of such requested Acquisition Advance,
            including the amount of the Acquisition Price(s) or of the Phase IIA
            Termination Payment or Phase IIB Termination Payment (individually,
            a "Phase II Termination Payment") and the Permitted Transaction
            Expenses included in such Acquisition Advance;

                  (iii) The date selected by Lessor as the Acquisition Date for
            such purchase or termination, which shall be, (A) in the case of the
            Acquisition Advances to purchase the Tract 2 Property and the Tract
            3 Property and to pay the Phase II Termination Payments (the
            "Initial Acquisition Advances"), on the same date that is a Business
            Day on or prior to December 31, 1997 and (B) in the case of the
            Acquisition Advance to purchase the Tract 4 Property (the "Tract 4
            Acquisition Advance"), on a date that is a Business Day on or prior
            to June 1, 1998; and

                  (iv)  The Portions into which such Advance(s) is (are) to be
            divided and the Rental Period for each Portion.

            (b)   Improvement/Expense Advance Requests. Lessee shall request
      Lessor to make each Improvement/Expense Advance by delivering to Lessor:

                  (i)   An irrevocable written request in the form of Exhibit F,
            appropriately completed (an "Improvement/Expense Advance Request"),
            which specifies, among other things:

                        (A)   The amount of such Advance, which shall be in the
                  amount of $1,000,000 or an integral multiple of $100,000 in
                  excess thereof;

                        (B)   The date of such Advance, which shall be the first
                  Business Day of a month; and

                        (C)   The Permitted Improvement Costs and Permitted
                  Transaction Expenses to be paid by such Advance and the
                  Tract(s) of Property for which payable; and


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                  (ii)  If the proceeds of such Advance are to be used to
            purchase Related Goods:

                        (A)   A Supplement to Exhibit B to the Lease Agreement
                  in the form of Exhibit B(1) to the Lease Agreement (an
                  "Exhibit B Supplement"), which contains a detailed description
                  of such Related Goods; and

                        (B)   Bills of sale for all such Related Goods showing
                  Lessor as the purchaser.

Lessee shall not request more than one (1) Improvement/Expense Advance in any
calendar month.

            (c)   Delivery of Advance Requests. Etc. Lessee shall deliver to
      Lessor the Acquisition Requests for the Initial Acquisition Advances at
      least one (1) Business Day before the Closing Date and the Acquisition
      Request for the Tract 4 Acquisition Advance at least one (1) Business Day
      before the Tract 4 Acquisition Date. Lessee shall deliver each
      Improvement/Expense Advance Request to Lessor at least three (3) Business
      Days before the date of such Advance. The Acquisition Requests and
      Improvement/Expense Advance Requests (collectively, "Advance Requests")
      shall be delivered by first-class mail or facsimile as required by
      Subparagraph 2.02(c) and Paragraph 7.01; provided, however, that Lessee
      shall promptly deliver to Lessor the original of any Advance Request
      initially delivered by facsimile.

            (d)   Capitalization of Base Rent During Commitment Period. On each
      Scheduled Rent Payment Date occurring under the Lease Agreement during the
      Commitment Period, the portion of the Base Rent due on such Scheduled Rent
      Payment Date and attributable to the New Improvements shall be capitalized
      by automatically treating the amount of such Base Rent as an
      Improvement/Expense Advance made on such Scheduled Rent Payment Date.
      Agent shall notify Lessor and each Participant of the amount of the Base
      Rent due on each such Scheduled Rent Payment Date and so treated as an
      Improvement/Expense Advance.

      2.04. Fees.

            (a)   Agent's Fees. Lessee shall pay to Agent, for its own account,
      agent's fees in the amounts and at the times set forth in the Agent's Fee
      Letter (the "Agent's Fees").

            (b)   Commitment Fees. Lessee shall pay to Agent, for the ratable
      benefit of the Participants as provided in clause (ii) of Subparagraph
      2.06(c), commitment fees (the "Commitment Fees") of fifteen hundredths of
      one percent (0.15%) per annum on the daily average Unused Total Commitment
      for the period beginning on the date of this Agreement and ending on the
      Commitment Termination Date. Lessee shall pay the Commitment Fees in
      arrears on the first Business Day in each January, April, July and October
      (commencing January 1, 1998) and on the Commitment Termination Date (or if
      the Total Commitment is cancelled on a date prior to such day, on such
      prior date).


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            (c)   Commitment Extension Fee. If Lessor and the Participants
      consent to any extension of the Commitment Termination Date requested by
      Lessee pursuant to Subparagraph 2.09(a), Lessee shall pay to Agent, for
      the ratable benefit of the Participants as provided in clause (iii) of
      Subparagraph 2.06(c), an extension fee (the "Commitment Extension Fee") of
      Ten Thousand Dollars ($10,000). Lessee shall pay the Commitment Extension
      Fee on or prior to the Business Day immediately preceding the original
      Commitment Termination Date.

      2.05. Funding of Advances.

            (a)   Participant Funding and Disbursement. Subject to the terms and
      conditions of this Agreement, each Participant shall, before 12:00 p.m. on
      the date of each Advance, make available to Agent at its office specified
      in Paragraph 7.01, in same day or immediately available funds, such
      Participant's Proportionate Share of such Advance. After Agent's receipt
      of such funds and upon fulfillment of the applicable conditions set forth
      in Section III, Agent will promptly disburse such funds on behalf of
      Lessor, in same day or immediately available funds, as follows:

                  (i)   Agent shall disburse each Acquisition Advance to
            purchase property on the Closing Date or the Tract 4 Acquisition
            Date to an escrow or other account established for payment of the
            applicable Acquisition Price and any related Permitted Transaction
            Expenses pursuant to the applicable Acquisition Agreements or
            otherwise as directed by Lessee in the Advance Request for such
            Acquisition Advance to pay such amounts.

                  (ii)  Agent shall disburse each Acquisition Advance to pay a
            Phase II Termination Payment on the Closing Date to ABN AMRO, as
            agent for the Phase IIA Participants or the Phase IIB Participants,
            as the case may be, and any related Permitted Transaction Expenses
            as directed by Lessee in the Advance Request for such Acquisition
            Advance to pay such amounts.

                  (iii) Agent shall disburse each Improvement/Expense Advance as
            directed by Lessee in the Advance Request for such
            Improvement/Expense Advance.

            (b)   Participant Failure to Fund. Unless Agent shall have received
      notice from a Participant prior to the date of any Advance that such
      Participant will not make available to Agent such Participant's
      Proportionate Share of such Advance, Agent may assume that such
      Participant has made such portion available to Agent on the date of such
      Advance in accordance with Subparagraph 2.05(a), and Agent may, in
      reliance upon such assumption, disburse the full amount of such Advance on
      such date; provided, however, that neither Agent nor Lessor shall have any
      obligation to make an Advance requested hereunder in an amount which
      exceeds the aggregate amount of funds actually received by Agent from the
      Participants on account of their respective Proportionate Shares of such
      Advance. If any Participant does not make the amount of its Proportionate
      Share of any Advance available to Agent on or prior to the date such
      Advance is made, such Participant shall pay to Agent, on demand, interest
      which shall accrue on such amount 


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      until made available to Agent at rates equal to (i) the daily Federal
      Funds Rate during the period from the date of such Advance through the
      third Business Day thereafter and (ii) the Base Rate plus two percent
      (2.0%) thereafter. A certificate of Agent submitted to any Participant
      with respect to any amounts owing under this Subparagraph 2.05(b) shall be
      conclusive absent manifest error. If any Participant's Proportionate Share
      of any Advance is not in fact made available to Agent by such Participant
      within three (3) Business Days after the date of such Advance, Lessee
      shall pay to Agent, on demand, an amount equal to such Proportionate Share
      together with interest thereon, for each day from the date such amount was
      made available to Lessee until the date such amount is repaid to Agent, at
      a per annum rate equal to the Base Rate.

            (c)   Participants' Obligations Several. The failure of any
      Participant to fund its Proportionate Share of any Advance shall not
      relieve any other Participant of its obligation hereunder to fund its
      Proportionate Share of such Advance, and no Participant shall be
      responsible for the failure of any other Participant to fund its
      Proportionate Share of any Advance on the date of such Advance.

      2.06. Sharing of Payments.

            (a)   Outstanding Lease Amount. Lessor shall share payments applied
      to reduce the Outstanding Lease Amount as follows:

                  (i)   Each payment of the Outstanding Lease Amount derived
            from the purchase price paid by Lessee (or an Assignee Purchaser) to
            purchase the Property pursuant to the Purchase Agreement shall be
            shared by the Participants pro rata according to their respective
            Outstanding Participation Amounts at the time of such payment.

                  (ii)  Each payment of the Outstanding Lease Amount derived
            from the Residual Value Guaranty Amount paid by Lessee pursuant to
            the Purchase Agreement shall be shared first by the Tranche A
            Participants pro rata according to their respective Outstanding
            Tranche A Participation Amounts at the time of such payment; second,
            if any amounts remain after all Outstanding Tranche A Participation
            Amounts are paid in full, by the Tranche B Participants pro rata
            according to their respective Outstanding Tranche B Participation
            Amounts at the time of such payment; and third, if any amounts
            remain after all Outstanding Tranche A Participation Amounts and all
            Outstanding Tranche B Participation Amounts are paid in full, by the
            Tranche C Participants pro rata according to their respective
            Outstanding Tranche C Participation Amounts at the time of such
            payment.

                  (iii) Each payment of the Outstanding Lease Amount derived
            from:

                        (A)   the purchase price paid by a Designated Purchaser
                  to purchase the Property pursuant to the Purchase Agreement;

                        (B)   the Indemnity Amount paid by Lessee pursuant to
                  the Purchase Agreement; or


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                        (C)   Casualty Proceeds or Condemnation Proceeds related
                  to any of the Property;

            Shall be shared first by the Tranche B Participants pro rata
            according to their respective Outstanding Tranche B Participation
            Amounts at the time of such payment; second, if any amounts remain
            after all Outstanding Tranche B Participation Amounts are paid in
            full, by the Tranche A Participants pro rata according to their
            respective Outstanding Tranche A Participation Amounts at the time
            of such payment; and third, if any amounts remain after all
            Outstanding Tranche B Participation Amounts and all Outstanding
            Tranche A Participation Amounts are paid in full, by the Tranche C
            Participants pro rata according to their respective Outstanding
            Tranche C Participation Amounts at the time of such payment.

                  (iv)  Each payment of the Outstanding Lease Amount derived
            from the purchase price paid by any other Person to purchase the
            Property (whether after the retention of such Property by Lessor
            following the Expiration Date of the Lease Agreement, upon
            foreclosure or otherwise) shall be shared first by the Tranche B
            Participants pro rata according to their respective Outstanding
            Tranche B Participation Amounts at the time of such payment; second,
            if any amounts remain after all Outstanding Tranche B Participation
            Amounts are paid in full, by the Tranche A Participants pro rata
            according to their respective Outstanding Tranche A Participation
            Amounts at the time of such payment; and third, if any amounts
            remain after all Outstanding Tranche B Participation Amounts and all
            Outstanding Tranche A Participation Amounts are paid in full, by the
            Tranche C Participants pro rata according to their respective
            Outstanding Tranche C Participation Amounts at the time of such
            payment.

            (b)   Base Rent. Lessor shall share each payment applied to Base
      Rent among the Participants which funded the Outstanding Lease Amount pro
      rata according to (i) the respective Outstanding Participation Amounts so
      funded by such Participants and (ii) the dates on which such Participants
      so funded such amounts.

            (c)   Supplemental Rent. Lessor shall share each payment applied to
      Supplemental Rent among the Lessor Parties as follows:

                  (i)   Each payment applied to Agent's Fees shall be solely for
            the account of Agent.

                  (ii)  Each payment applied to Commitment Fees shall be shared
            by the Participants pro rata according to (A) their respective
            Proportionate Shares and (B) in the case of each Participant which
            becomes a Participant hereunder after the date hereof, the date upon
            which such Participant so became a Participant.

                  (iii) Each payment applied to the Commitment Extension Fee
            shall be shared by the Participants pro rata according to their
            respective Proportionate Shares on the date of such payment.


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                  (iv)  Each payment applied to reimburse any Lessor Party for
            any fees, costs and expenses incurred by such Lessor Party shall be
            solely for the account of such Lessor Party.

                  (v)   Each payment of interest (other than Base Rent) shall be
            shared among the Lessor Parties owed the amount upon which such
            interest accrues pro rata according to (A) the respective amounts so
            owed such Lessor Parties and (B) the dates on which such amounts
            became owing to such Lessor Parties.

                  (vi)  All other payments under this Agreement and the other
            Operative Documents shall be for the benefit of the Person or
            Persons specified.

            (d)   Disproportionate Payments, Etc. If any Lessor Party shall
      obtain any payment (whether voluntary, involuntary, through the exercise
      of any right of setoff, or otherwise) on account of amounts owed to it in
      excess of its ratable share of payments on account of such amounts
      obtained by all Lessor Parties entitled to such payments, such Lessor
      Party shall forthwith purchase from the other Lessor Parties such
      participations in the payments to be made under the Operative Documents as
      shall be necessary to cause such purchasing Lessor Party to share the
      excess payment ratably with each of them; provided, however, that if all
      or any portion of such excess payment is thereafter recovered from such
      purchasing Lessor Party, such purchase shall be rescinded and each other
      Lessor Party shall repay to the purchasing Lessor Party the purchase price
      to the extent of such recovery together with an amount equal to such other
      Lessor Party's ratable share (according to the proportion of (i) the
      amount of such other Lessor Party's required repayment to (ii) the total
      amount so recovered from the purchasing Lessor Party) of any interest or
      other amount paid or payable by the purchasing Lessor Party in respect of
      the total amount so recovered. Lessee agrees that any Lessor Party so
      purchasing a participation from another Lessor Party pursuant to this
      Subparagraph 2.06(d) may, to the fullest extent permitted by law, exercise
      all its rights of payment (including the right of setoff) with respect to
      such participation as fully as if such Lessor Party were the direct
      creditor of Lessee in the amount of such participation.

      2.07. Other Payment Terms.

            (a)   Place and Manner of Payments by Lessee. Lessee shall make all
      payments due to any Lessor Party under this Agreement and the other
      Operative Documents by payments to Agent, for the account of such Person,
      at Agent's office, located at the address specified in Paragraph 7.01,
      with each payment due to a Participant to be for the account of such
      Participant's Applicable Participating Office. Lessee shall make all
      payments in lawful money of the United States and in same day or
      immediately available funds not later than 11:00 a.m. on the date due.
      Agent shall promptly disburse to the appropriate Person each such payment
      received by Agent for such Person.

            (b)   Date. Whenever any payment due under this Agreement or any
      other Operative Document shall fall due on a day other than a Business
      Day, such payment shall be made on the next succeeding Business Day, and
      such extension of time shall be included in the computation of Rent,
      interest or fees, as the case may be.


                                       12
   13
            (c)   Late Payments. If any amounts required to be paid by Lessee
      under this Agreement or any other Operative Document (including Rent,
      interest, fees or other amounts) remain unpaid after such amounts are due,
      Lessee shall pay interest on the aggregate, outstanding balance of such
      amounts from the date due until those amounts are paid in full at a per
      annum rate equal to the Base Rate plus two percent (2.0%), such rate to
      change from time to time as the Base Rate shall change.

            (d)   Application of Payments. All payments under this Agreement and
      the other Operative Documents shall be applied first to unpaid fees, costs
      and expenses and other Supplemental Rent then due and payable under this
      Agreement or any other Operative Document, second to the accrued Base Rent
      then due and payable under this Agreement or any other Operative Document
      and finally to reduce the Outstanding Lease Amount.

            (e)   Failure to Pay Agent. Unless Agent shall have received notice
      from Lessee at least one (1) Business Day prior to the date on which any
      payment is due to Lessor or the Participants under this Agreement or the
      other Operative Documents that Lessee will not make such payment in full,
      Agent may assume that Lessee has made such payment in full to Agent on
      such date and Agent may, in reliance upon such assumption, cause to be
      distributed to the appropriate Persons on such due date an amount equal to
      the amount then due such Persons. If and to the extent Lessee shall not
      have so made such payment in full to Agent, each such Person shall repay
      to Agent forthwith on demand such amount distributed to such Person
      together with interest thereon, for each day from the date such amount is
      distributed to such Person until the date such Person repays such amount
      to Agent, at (i) the Federal Funds Rate for the first three (3) days and
      (ii) the Base Rate plus two percent (2.0%) thereafter, such rate to change
      from time to time as the Base Rate shall change. A certificate of Agent
      submitted to any Person with respect to any amounts owing by such Person
      under this Subparagraph 2.07(e) shall be conclusive absent manifest error.

      2.08. Commitment Reductions.

            (a)   Reduction or Cancellation of Commitments. Lessee may, at any
      time prior to the Commitment Termination Date, upon five (5) Business Days
      written notice to Lessor, permanently reduce the Total Commitment by the
      amount of Five Million Dollars ($5,000,000) or an integral multiple of One
      Million Dollars ($1,000,000) in excess thereof or cancel the Total
      Commitment in its entirety.

            (b)   Effect of Commitment Reductions. From the effective date of
      any reduction of the Total Commitment, the Commitment Fees shall be
      computed on the basis of the Total Commitment as so reduced. Once reduced
      or cancelled, the Total Commitment may not be increased or reinstated
      without the prior written consent of Lessor and all Participants. Any
      reduction of the Total Commitment pursuant to this Paragraph 2.08 shall be
      applied ratably to reduce each Participant's Commitment pro rata in
      accordance with its Proportionate Share.


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   14
      2.09. Extensions.

            (a)   Commitment Extension. Lessee may request Lessor to extend the
      Commitment Termination Date for an additional period of six (6) months by
      appropriately completing, executing and delivering to Agent a written
      request in the form of Exhibit G(1) (a "Commitment Extension Request").
      Lessee shall deliver the Commitment Extension Request to Agent not more
      than three (3) months and not less than two (2) months before the original
      Commitment Termination Date. Agent shall promptly deliver to Lessor and
      each Participant three (3) copies of each Commitment Extension Request
      received by Agent. If Lessor or a Participant, in its sole and absolute
      discretion, consents to the Commitment Extension Request, such Person
      shall evidence such consent by executing and returning two (2) copies of
      the Commitment Extension Request to Agent not later than the last Business
      Day which is not less than fifteen (15) Business Days prior to the
      original Commitment Termination Date. Any failure by Lessor or any
      Participant so to execute and return a Commitment Extension Request shall
      be deemed a denial thereof. If Lessee shall deliver a Commitment Extension
      Request to Lessor pursuant to the first sentence of this Subparagraph
      2.09(a), then not later than ten (10) Business Days prior to the original
      Commitment Termination Date, Agent shall notify Lessee, Lessor and the
      Participants in writing whether (i) Agent has received a copy of the
      Commitment Extension Request executed by Lessor and each Participant, in
      which case the definition of "Commitment Termination Date" set forth in
      Subparagraph 2.01(a) shall be deemed extended to the date which is six (6)
      months after the original Commitment Termination Date (subject to receipt
      by Agent of the Commitment Extension Fee), or (ii) Agent has not received
      a copy of the Commitment Extension Request executed by Lessor and each
      Participant, in which case such Commitment Extension Request shall be
      deemed denied. Lessee acknowledges that neither Lessor nor any Participant
      has promised (either expressly or implicitly), or has any obligation or
      commitment, to extend or consent to the extension of the Commitment
      Termination Date at any time.

            (b)   Lease Extension. Lessee may request Lessor to extend the
      original Scheduled Expiration Date of the Lease Agreement for an
      additional period of two (2) years by appropriately completing, executing
      and delivering to Agent a written request in the form of Exhibit G(2),
      together with an attachment thereto setting forth the terms upon which
      Lessee would propose for the requested extension (a "Lease Extension
      Request"). Lessee shall deliver the Lease Extension Request to Agent not
      more than three (3) months and not less than two (2) months before the
      first anniversary of the Closing Date. Agent shall promptly deliver to
      Lessor and each Participant three (3) copies of the Lease Extension
      Request received by Agent. If Lessor or a Participant, in its sole and
      absolute discretion, consents to a Lease Extension Request, such Person
      shall evidence such consent by executing and returning two (2) copies of
      such Lease Extension Request to Agent not later than the last Business Day
      which is not less than one (1) month prior to the first anniversary of the
      Closing Date. Any failure by Lessor or any Participant so to execute and
      return a Lease Extension Request shall be deemed a denial thereof. If
      Lessee shall deliver a Lease Extension Request to Lessor pursuant to the
      first sentence of this Subparagraph 2.09(b), then not later than the last
      Business Day which is not less than fifteen (15) Business Days prior to
      the first anniversary of the Closing Date, Agent shall 


                                       14
   15
      notify Lessee, Lessor and the Participants in writing whether (i) Agent
      has received a copy of the Lease Extension Request executed by Lessor and
      each Participant, in which case the definition of "Scheduled Expiration
      Date" set forth in Subparagraph 2.02(a) of the Lease Agreement shall be
      deemed extended to the date which is two (2) years after the original
      Scheduled Expiration Date (subject to the receipt by Agent of any amounts
      payable by Lessee in connection with such extension), or (ii) Agent has
      not received a copy of the Lease Extension Request executed by Lessor and
      each Participant, in which case such Lease Extension Request shall be
      deemed denied. Lessee acknowledges that neither Lessor nor any Participant
      has promised (either expressly or implicitly), or has any obligation or
      commitment, to extend or consent to the extension of the Scheduled
      Expiration Date at any time.

      2.10. Nature of the Transactions. Lessee and the Lessor Parties intend
that the transactions evidenced by this Agreement and the other Operative
Documents constitute operating leases pursuant to FASB 13 for accounting
purposes and loans secured by the Property for all other purposes, including
federal, state and local income tax purposes and commercial, real estate and
bankruptcy law purposes. To the extent that this Agreement and the other
Operative Documents reflect the lease form alone, they do so for convenience
only. Lessee and the Lessor Parties intend that the Operative Documents have the
dual form referred to in the first sentence of this paragraph, notwithstanding
the use of the lease form alone.

            (a)   Tax Treatment. For purposes of all income, franchise and other
      taxes imposed upon or measured by income, Lessee and Lessor Parties intend
      that the transactions evidenced by the Operative Documents shall be
      treated as loans by the Participants (through Lessor) to Lessee secured by
      the Property, with Lessee as owner of the Property. Lessee and the Lessor
      Parties may only take deductions, credits, allowances and other reporting
      positions on their respective returns, reports and statements which are
      consistent with such treatment, unless required to do otherwise by an
      appropriate taxing authority after the completion of judicial proceedings
      at which Lessee has had a full and complete opportunity to present its
      position or after a clearly applicable change in applicable Governmental
      Rules; provided, however, that if an appropriate taxing authority or a
      clearly applicable change in applicable Governmental Rules requires any
      Lessor Party to take such an inconsistent position, such Lessor Party
      shall promptly notify Lessee.

            (b)   Other Legal Treatment. For purposes of commercial law, real
      property law, bankruptcy law and other applicable laws, Lessee and Lessor
      Parties also intend that the transactions evidenced by the Operative
      Documents shall be treated as loans by the Participants (through Lessor)
      to Lessee secured by the Property, with Lessee as owner of the Property.
      Consistent with such treatment, Lessee and the Lessor Parties intend that,
      among other things for such purposes, (i) the Advances be treated as loans
      to Lessee by the Participants (through Lessor); (ii) the Advances be
      secured by the Property and the Lessor Parties have the rights and
      remedies of secured lenders; (iii) Base Rent be treated as interest on the
      Advances; (iv) Lessee be required to pay on the Expiration Date only the
      Residual Value Guaranty Amount, the Indemnity Amount and the other amounts
      required by clause (ii) of Subparagraph 4.06(a) of the Purchase Agreement
      (or clause (iii) of Subparagraph 4.06(a) if Lessor is retaining the
      Property) if Lessee exercises the 


                                       15
   16
      Marketing Option in accordance with the Purchase Agreement; and (v) Lessee
      be required to pay on the Expiration Date the Outstanding Lease Amount and
      all other amounts outstanding under this Agreement and the other Operative
      Documents (including amounts required by clause (i) of Subparagraph
      4.06(a) of the Purchase Agreement) if the Lease Agreement is terminated
      prior to its Scheduled Expiration Date after an Event of Default occurs
      under the Lease Agreement or if Lessee fails to or is otherwise not
      entitled to exercise the Marketing Option in accordance with the Purchase
      Agreement.

            (c)   No Reliance by Lessee. Lessee acknowledges and agrees that no
      Lessor Party has made any representations or warranties to Lessee
      concerning the tax, accounting or legal characteristics of the Operative
      Documents and that Lessee has obtained and relied upon such tax,
      accounting and legal advice concerning the Operative Documents as it deems
      appropriate.

      2.11. Security.

            (a)   Lessee Obligations.

                  (i)   To the extent that the transaction evidenced by the
            Lease Agreement, Purchase Agreement and other Operative Documents is
            treated as a loan by the Participants (through Lessor) to Lessee
            secured by the Property, with Lessee as owner of the Property
            pursuant to Paragraph 2.10, the Lessee Obligations shall be secured
            by the Real Property Collateral and the Personal Property Collateral
            (collectively, the "Property Collateral") as provided in
            Subparagraphs 2.07(a) and 2.07(b) of the Lease Agreement and in an
            Assignment of Construction Agreements in the form of Exhibit H, duly
            executed by Lessee (the "Assignment of Construction Agreements"),
            and the other Lessee Security Documents.

                  (ii)  In addition to the Property Collateral, the Lessee
            Obligations shall be secured, as provided in the Purchase Agreement,
            by a Cash Collateral Agreement in a form acceptable to Lessor and
            Agent, duly executed by Lessee (the "Cash Collateral Agreement"),
            and Cash Collateral delivered to Agent or Participants pursuant to
            the Cash Collateral Agreement if Lessee elects to exercise the
            Marketing Option after Lessor notifies Lessee that Lessor is
            terminating the Lease Agreement on a Termination Date that is prior
            to the Scheduled Expiration Date and the only basis for such early
            termination is the occurrence of a Non-Marketing Option Event of
            Default.

                  (iii) Lessee shall deliver to Lessor and Agent such additional
            mortgages, deeds of trust, security agreements, pledge agreements,
            lessor consents and estoppels (containing appropriate mortgagee and
            lender protection language) and other instruments, agreements,
            certificates, opinions and documents (including Uniform Commercial
            Code financing statements and fixture filings and landlord waivers)
            as Lessor or Agent may reasonably request to (A) grant, perfect,
            maintain, protect and evidence security interests in favor of 


                                       16
   17
            Lessor or Agent in the Property Collateral and Cash Collateral prior
            to the Liens or other interests of any Person, except in the case of
            the Property Collateral for Permitted Property Liens; and (B)
            otherwise establish, maintain, protect and evidence the rights
            provided to Lessor and Agent in the Property Collateral and Cash
            Collateral. Lessee shall fully cooperate with Lessor and Agent and
            perform all additional acts reasonably requested by Lessor or Agent
            to effect the purposes of this Subparagraph 2.11(a).

            (b)   Lessor Obligations.

                  (i)   The Lessor Obligations shall be secured by the
            following:

                        (A)   An Assignment of Lease Agreement and Purchase
                  Agreement in the form of Exhibit I, duly executed by Lessor
                  (the "Assignment of Lease");

                        (B)   A Construction Deed of Trust with Assignment of
                  Rents, Security Agreement and Fixture Filing in the form of
                  Exhibit J, duly executed by Lessor (the "Lessor Deed of
                  Trust"); and

                        (C)   A Security Agreement in the form of Exhibit K,
                  duly executed by Lessor (the "Lessor Security Agreement").

                  (ii)  Lessor shall deliver to Agent such additional mortgages,
            deeds of trust, security agreements, pledge agreements, lessor
            consents and estoppels (containing appropriate mortgagee and lender
            protection language) and other instruments, agreements,
            certificates, opinions and documents (including Uniform Commercial
            Code financing statements and fixture filings and landlord waivers)
            as Agent may reasonably request to (A) grant, perfect, maintain,
            protect and evidence security interests in favor of Agent in
            Lessor's rights in the Property Collateral and Cash Collateral; and
            (B) otherwise establish, maintain, protect and evidence the rights
            provided to Agent in the Property Collateral and Cash Collateral.
            Lessor shall fully cooperate with Agent and perform all additional
            acts reasonably requested by Agent to effect the purposes of this
            Subparagraph 2.11(b).

                  (iii) Lessee hereby consents to the Assignment of Lease, the
            Lessor Deed of Trust and the Lessor Security Agreement; the Liens
            granted to Agent therein; and all other Liens granted to Agent in
            any of the Operative Documents and the Property to secure the Lessor
            Obligations.

      2.12. Change of Circumstances.

            (a)   Inability to Determine Rates. If, on or before the first day
      of any Rental Period for any Portion, (i) any Participant shall advise
      Agent that the LIBOR Rental Rate for such Rental Period and Portion cannot
      be adequately and reasonably determined due to the unavailability of funds
      in or other circumstances affecting the London interbank market or (ii)
      Majority Participants shall advise Agent that the LIBOR Rental Rate for


                                       17
   18
      such Rental Period and Portion does not adequately and fairly reflect the
      cost to such Participants of funding their shares of such Portion, Agent
      shall immediately give notice of such condition to Lessee, Lessor and the
      other Participants. After the giving of any such notice (and until Agent
      shall otherwise notify Lessee and Lessor that the circumstances giving
      rise to such condition no longer exist), the LIBOR Rental Rate shall be
      unavailable and the Rental Rate for each new Rental Period shall be the
      Alternate Rental Rate.

            (b)   Illegality. If, after the date of this Agreement, the adoption
      of any Governmental Rule, any change in any Governmental Rule or the
      application or requirements thereof (whether such change occurs in
      accordance with the terms of such Governmental Rule as enacted, as a
      result of amendment or otherwise), any change in the interpretation or
      administration of any Governmental Rule by any Governmental Authority, or
      compliance by Lessor or any Participant with any request or directive
      (whether or not having the force of law) of any Governmental Authority,
      except for any such adoption or change publicly announced prior to the
      date of this Agreement (a "Change of Law") shall make it unlawful or
      impossible for any Participant to fund or maintain its portion of the
      Outstanding Lease Amount at the LIBOR Rental Rate, such Participant shall
      immediately notify Agent and Agent shall immediately notify Lessee, Lessor
      and the other Participants of such Change of Law. After the giving of any
      such notice (and until Agent shall otherwise notify Lessee and Lessor that
      such Change of Law is no longer in effect), the LIBOR Rental Rate shall be
      unavailable and the Rental Rate for each Rental Period shall be the
      Alternate Rental Rate.

            (c)   Increased Costs. If, after the date of this Agreement, any
      Change of Law:

                  (i)   Shall subject Lessor or any Participant to any tax, duty
            or other charge with respect to the Outstanding Lease Amount, or
            shall change the basis of taxation of Base Rent payments by Lessee
            to Lessor or any Participant under this Agreement or any other
            Operative Document (except for changes in the rate of taxation on
            the overall net income of Lessor or any Participant imposed by its
            jurisdiction of incorporation, the jurisdiction in which its
            principal executive office is located or, in the case of any
            Participant, the jurisdiction in which its Applicable Participating
            Office is located); or

                  (ii)  Shall impose, modify or hold applicable any reserve
            (excluding any Reserve Requirement or other reserve to the extent
            included in the calculation of the LIBOR Rental Rate), special
            deposit or similar requirement against assets held by, deposits or
            other liabilities in or for the account of, advances or loans by, or
            any other acquisition of funds by Lessor or any Participant for its
            portion of the Outstanding Lease Amount; or

                  (iii) Shall impose on Lessor or any Participant any other
            condition related to the Outstanding Lease Amount, Base Rent or
            Lessor's or such Participant's commitments hereunder;


                                       18
   19
      And the effect of any of the foregoing is to increase the cost to Lessor
      or such Participant of funding or maintaining its portion of the
      Outstanding Lease Amount or commitments or to reduce any amount receivable
      by Lessor or such Participant hereunder; then Lessee shall from time to
      time within fifteen (15) Business Days after demand by Lessor or such
      Participant, pay to Lessor or such Participant additional amounts
      sufficient to reimburse Lessor or such Participant for such increased
      costs or to compensate Lessor or such Participant for such reduced
      amounts; provided, however, that Lessee shall have no obligation to make
      any payment to any demanding party under this Subparagraph 2.12(c) on
      account of any such increased costs or reduced amounts relating to any
      Rental Period that ended more than six (6) months prior to such demanding
      party's first demand for payment (or, if any increased costs or reduced
      amounts do not relate to a particular Rental Period,. on account of any
      such increased costs or reduced amounts about which the demanding party
      first knew or should have known more than six (6) months prior to its
      first demand for payment). A certificate setting forth in reasonable
      detail the amount of such increased costs or reduced amounts, submitted by
      Lessor or such Participant to Lessee shall, in the absence of manifest
      error, be conclusive and binding on Lessee for all purposes. The
      obligations of Lessee under this Subparagraph 2.12(c) shall survive the
      payment and performance of the Lessee Obligations and the termination of
      this Agreement.

            (d)   Capital Requirements. If, after the date of this Agreement,
      Lessor or any Participant determines that (i) any Change of Law affects
      the amount of capital required to be maintained by such Person or any
      other Person controlling such Person (a "Capital Adequacy Requirement")
      and (ii) the amount of capital maintained by such Person or such other
      Person which is attributable to or based upon the Advances, the
      commitments or this Agreement must be increased as a result of such
      Capital Adequacy Requirement (taking into account such Person's or such
      other Person's policies with respect to capital adequacy), Lessee shall
      pay to such Person or such other Person, within fifteen (15) Business Days
      after demand of such Person, such amounts as such Person or such other
      Person reasonably shall determine are necessary to compensate such Person
      or such other Person for the increased costs to such Person or such other
      Person of such increased capital; provided, however, that Lessee shall
      have no obligation to make any payment to any demanding party under this
      Subparagraph 2.12(d) on account of any such increased costs relating to
      any Rental Period that ended more than six (6) months prior to such
      demanding party's first demand for payment (or, if any increased costs or
      reduced amounts do not relate to a particular Rental Period,. on account
      of any such increased costs or reduced amounts about which the demanding
      party first knew or should have known more than six (6) months prior to
      its first demand for payment). A certificate of Lessor or any Participant
      setting forth in reasonable detail the computation of any such increased
      costs, delivered by such Person to Lessee shall, in the absence of
      manifest error, be conclusive and binding on Lessee for all purposes. The
      obligations of Lessee under this Subparagraph 2.12(d) shall survive the
      payment and performance of the Lessee Obligations and the termination of
      this Agreement.

            (e)   Mitigation. If Lessor or any Participant becomes aware of (i)
      any Change of Law which will make it unlawful or impossible for such
      Person to fund or maintain its portion of the Outstanding Lease Amount at
      the LIBOR Rental Rate or (ii) any Change of 


                                       19
   20
      Law or other event or condition which will obligate Lessee to pay any
      amount pursuant to Subparagraph 2.12(c) or Subparagraph 2.12(d), such
      Person shall notify Lessee and Agent thereof as promptly as practical. If
      any Person has given notice of any such Change of Law or other event or
      condition and thereafter becomes aware that such Change of Law or other
      event or condition has ceased to exist, such Person shall notify Lessee
      and Agent thereof as promptly as practical. Each Person affected by any
      Change of Law which makes it unlawful or impossible for such Person to
      fund or maintain its portion of the Outstanding Lease Amount at the LIBOR
      Rental Rate or to which Lessee is obligated to pay any amount pursuant to
      Subparagraph 2.12(c) or Subparagraph 2.12(d) shall use reasonable
      commercial efforts (including changing the jurisdiction of its Applicable
      Participating Office) to avoid the effect of such Change of Law or to
      avoid or materially reduce any amounts which Lessee is obligated to pay
      pursuant to Subparagraph 2.12(c) or Subparagraph 2.12(d) if, in the
      reasonable opinion of such Person, such efforts would not be
      disadvantageous to such Person or contrary to such Person's normal banking
      practices.

      2.13. Taxes on Payments.

            (a)   Payments Free of Taxes. All payments made by Lessee under this
      Agreement and the other Operative Documents shall be made free and clear
      of, and without deduction or withholding for or on account of, any present
      or future Indemnified Taxes, now or hereafter imposed, levied, collected,
      withheld or assessed by any Governmental Authority. If any Indemnified
      Taxes are required to be withheld from any amounts payable to any Lessor
      Party hereunder or under the other Operative Documents, the amounts so
      payable to such Lessor Party shall be increased to the extent necessary to
      yield to such Lessor Party (after payment of all Indemnified Taxes) the
      Base Rent or any such other amounts payable hereunder at the rates or in
      the amounts specified in this Agreement and the other Operative Documents.
      Whenever any Indemnified Taxes are payable by Lessee, as promptly as
      possible thereafter, Lessee shall send to Agent for its own account or for
      the account of Lessor or such Participant, as the case may be, a certified
      copy of an original official receipt received by Lessee showing payment
      thereof. If Lessee fails to pay any Indemnified Taxes when due to the
      appropriate taxing authority or fails to remit to Agent the required
      receipts or other required documentary evidence, Lessee shall indemnify
      the Lessor Parties for any incremental taxes, interest or penalties that
      may become payable by the Lessor Parties as a result of any such failure.
      The obligations of Lessee under this Subparagraph 2.13(a) shall survive
      the payment and performance of the Lessee Obligations and the termination
      of this Agreement.

            (b)   Withholding Exemption Certificates. On or prior to the Closing
      Date or, if such date does not occur within thirty (30) days after the
      date of this Agreement, by the end of such 30- day period, Lessor, if it
      is not organized under the laws of the United States of America or a state
      thereof, and each Participant which is not incorporated under the laws of
      the United States of America or a state thereof, shall deliver to Lessee
      and Agent two duly completed copies of United States Internal Revenue
      Service Form 1001 or 4224 (or successor applicable form), as the case may
      be, certifying in each case that Lessor or such Participant, as the case
      may be, is entitled to receive payments under this Agreement and the other
      Operative Documents without deduction or withholding of any 


                                       20
   21
      United States federal income taxes. Each Person which delivers to Lessee
      and Agent a Form 1001 or 4224 pursuant to the immediately preceding
      sentence further undertakes to deliver to Lessee and Agent two further
      copies of Form 1001 or 4224 (or successor applicable forms), or other
      manner of certification or procedure, as the case may be, on or before the
      date that any such form expires or becomes obsolete or after the
      occurrence of any event requiring a change in the most recent form
      previously delivered by it to Lessee and Agent, and such extensions or
      renewals thereof as may reasonably be requested by Lessee or Agent,
      certifying in the case of a Form 1001 or 4224 that such Person is entitled
      to receive payments under this Agreement and the other Operative Documents
      without deduction or withholding of any United States federal income
      taxes, unless in any such cases an event (including without limitation any
      change in treaty, law or regulation) has occurred prior to the date on
      which any such delivery would otherwise be required which renders all such
      forms inapplicable or which would prevent Lessor or a Participant from
      duly completing and delivering any such form with respect to it and Lessor
      or such Participant advises Lessee and Agent that it is not capable of
      receiving payments without any deduction or withholding of United States
      federal income tax.

            (c)   Mitigation. If any Lessor Party claims any additional amounts
      to be payable to it pursuant to this Paragraph 2.13, such Lessor Party
      shall use reasonable commercial efforts to file any certificate or
      document requested in writing by Lessee (including copies of Internal
      Revenue Service Form 1001 (or successor forms) reflecting a reduced rate
      of withholding) or to change the jurisdiction of its Applicable
      Participating Office if the making of such a filing or such change in the
      jurisdiction of its Applicable Participating Office would avoid the need
      for or materially reduce the amount of any such additional amounts which
      may thereafter accrue and if, in the reasonable opinion of a Participant,
      in the case of a change in the jurisdiction of its Applicable
      Participating Office, such change would not be disadvantageous to such
      Person or contrary to such Person's normal banking practices.

            (d)   Tax Returns. Nothing contained in this Paragraph 2.13 shall
      require any Lessor Party to make available any of its tax returns (or any
      other information relating to its taxes which it deems to be
      confidential).

            (e)   Tax Savings. In the event an Indemnitee receives a refund (or
      similar tax savings) in respect of any Indemnified Tax paid or reimbursed
      by Lessee, such Indemnitee shall, within thirty (30) days thereafter,
      remit the amount of such refund (or tax savings) to Lessee, provided that
      the amount so remitted shall not exceed the lesser of: (i) the amount
      received by such Indemnitee as a refund (or tax savings) net of all
      reasonable costs and expenses incurred by such Indemnitee in connection
      with obtaining and paying such amount; and (ii) the remainder of (A) the
      amount of all prior payments by Lessee to such Indemnitee with respect to
      Indemnified Taxes, plus any refunded interest, less (B) the amount of all
      prior payments by such Indemnitee to Lessee under this Subparagraph
      2.13(e); provided that (1) any disallowance or other loss of such refund
      (or tax savings) shall be treated as an "Indemnified Tax" without regard
      to all exclusions and (2) no such remittance shall be made if any Default
      or Event of Default has occurred and is continuing.


                                       21
   22
      2.14. Funding Loss Indemnification. If Lessee shall (a) pay all or any
Portion of the Outstanding Lease Amount on any day other than the last day of a
Rental Period therefor (whether an optional payment, a mandatory payment or
otherwise) or (b) cancel or otherwise fail to consummate any Advance Request
which has been delivered to Agent (whether as a result of the failure to satisfy
any applicable conditions or otherwise), Lessee shall, upon demand by Lessor or
any Participant, reimburse such Person for and hold such Person harmless from
all costs and losses incurred by such Person as a result of such payment,
cancellation or failure. Lessee understands that such costs and losses may
include, without limitation, losses incurred by Lessor or a Participant as a
result of funding and other contracts entered into by such Person to fund its
portion of the Outstanding Lease Amount. Each Person demanding payment under
this Paragraph 2.14 shall deliver to Lessee, with a copy to Agent, a certificate
setting forth the amount of costs and losses for which demand is made, which
certificate shall set forth in reasonable detail the calculation of the amount
demanded. Such a certificate so delivered to Lessee shall constitute prima facie
evidence of such costs and losses. The obligations of Lessee under this
Paragraph 2.14 shall survive the payment and performance of the Lessee
Obligations and the termination of this Agreement.

      2.15. Replacement of Participants. If any Participant shall (a) become a
Defaulting Participant more than two (2) times in a period of twelve (12)
consecutive months, (b) continue as a Defaulting Participant for more than five
(5) Business Days at any time, (c) deliver, pursuant to Subparagraph 2.12(a), a
notice that any LIBOR Rental Rate cannot be adequately and reasonably determined
or that any LIBOR Rental Rate does not adequately and fairly reflect the cost to
such Participant of funding its shares of any Portion and such a notice is not
delivered by all Participants, (d) deliver, pursuant to Subparagraph 2.12(b), a
notice of a Change of Law which does not affect all Participants, or (e) demand
any payment under Subparagraph 2.12(c), 2.12(d) or 2.13(a) for a reason which is
not applicable to all Participants, then Agent may (or upon the written request
of Lessee if no Event of Default has occurred and is continuing, shall) replace
such Participant (the "affected Participant"), or cause such affected
Participant to be replaced, with another financial institution (the "replacement
Participant") satisfying the requirements of an Eligible Assignee under
Subparagraph 7.05(b), by having the affected Participant sell and assign all of
its rights and obligations under this Agreement and the other Operative
Documents to the replacement Participant pursuant to Subparagraph 7.05(b);
provided, however, that if Lessee seeks to exercise such right, it must do so
within sixty (60) days after it first receives notice of the event, condition or
demand giving rise to such right, and no Lessor Party shall have any obligation
to identify or locate a replacement Participant for Lessee. Upon receipt by any
affected Participant of a written notice from Agent stating that Agent is
exercising the replacement right set forth in this Paragraph 2.15, such affected
Participant shall sell and assign all of its rights and obligations under this
Agreement and the other Operative Documents to the replacement Participant
pursuant to an Assignment Agreement and Subparagraph 7.05(b) for a purchase
price equal to the sum of its portion of the Outstanding Lease Amount, the
accrued and unpaid portion of the Base Rent relating to such portion, all
amounts payable under Paragraph 2.14, and its ratable share of all fees to which
it is entitled.


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   23
SECTION 3. CONDITIONS PRECEDENT.

      3.01. Initial Acquisition Advances. The obligation of Lessor to make the
Initial Acquisition Advances (and the obligations of the Participants to fund
their respective Proportionate Shares of the Initial Acquisition Advances) is
(are) subject to receipt by Agent, on or prior to the Closing Date, of each item
listed in Schedule 3.01, each in form and substance satisfactory to Lessor,
Agent and each Participant, and with sufficient copies for, Lessor, Agent and
each Participant.

      3.02. Tract 4 Acquisition Advance. The obligation of Lessor to make the
Tract 4 Acquisition Advance (and the obligations of the Participants to fund
their respective Proportionate Shares of the Tract 4 Acquisition Advance) is
(are) subject to receipt by Agent, on or prior to the Tract 4 Acquisition Date,
of each item listed in Schedule 3.02, each in form and substance satisfactory to
Lessor, Agent and each Participant, and with sufficient copies for, Lessor,
Agent and each Participant.

      3.03. Improvement/Expense Advances. The obligation of Lessor to make each
Improvement/Expense Advance for each Tract of Property (including the first
Improvement/Expense Advance for such Tract of Property) (and the obligations of
the Participants to fund their respective Proportionate Shares of such Advance)
is (are) subject to (i) satisfaction of the conditions set forth in Paragraph
3.01, (ii) receipt by Agent pursuant to Paragraph 2.03 of the Advance Request
for such Advance, appropriately completed and duly executed by Lessee, and (iii)
receipt by Agent of date-down endorsements to Agent's and Lessor's title
insurance policies covering such Tract or binders acceptable to Agent and
Lessor.

      3.04. Other Conditions Precedent. The occurrence of each Credit Event
(including the making of each Advance by Lessor and the funding of each Advance
by the Participants) is subject to the further conditions that, on the date such
Credit Event is to occur and after giving effect to such Credit Event, the
following shall be true and correct:

            (a)   The representations and warranties of Lessee set forth in
      Paragraph 4.01 and in the other Operative Documents are true and correct
      in all material respects as if made on such date (except for
      representations and warranties expressly made as of a specified date,
      which shall be true as of such date);

            (b)   No Default has occurred and is continuing or will result from
      such Credit Event; and

            (c)   All of the Operative Documents are in full force and effect.

The submission by Lessee to Lessor and Agent of each Advance Request and a
Notice of Marketing Option Exercise shall be deemed to be a representation and
warranty by Lessee that each of the statements set forth above in this Paragraph
3.04 is true and correct as of the date of such request and notice.

      3.05. Covenant to Deliver. Lessee agrees (not as a condition but as a
covenant) to deliver to Lessor and Agent each item required to be delivered to
Lessor and Agent as a condition to each Advance if such Advance is made. Lessee
expressly agrees that the making of 


                                       23
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any Advance prior to the receipt by Lessor and Agent of any such item shall not
constitute a waiver by Lessor, Agent or any Participant of Lessee's obligation
to deliver such item, unless expressly waived in writing.


SECTION 4. REPRESENTATIONS AND WARRANTIES.

      4.01. Lessee's Representations and Warranties. In order to induce the
Lessor Parties to enter into this Agreement and the other Operative Documents to
which they are parties, Lessee hereby represents and warranties to the Lessor
Parties as follows:

            (a)   Due Incorporation, Qualification, etc. Each of Lessee and
      Lessee's Subsidiaries (i) is a corporation duly organized, validly
      existing and in good standing under the laws of its state of
      incorporation; (ii) has the power and authority to own, lease and operate
      its properties and carry on its business as now conducted; and (iii) is
      duly qualified, licensed to do business and in good standing as a foreign
      corporation in each jurisdiction where the failure to be so qualified or
      licensed is reasonably likely to have a Material Adverse Effect.

            (b)   Authority. The execution, delivery and performance by Lessee
      of each Operative Document executed, or to be executed, by Lessee and the
      consummation of the transactions contemplated thereby (i) are within the
      power of Lessee and (ii) have been duly authorized by all necessary
      actions on the part of Lessee.

            (c)   Enforceability. Each Operative Document executed, or to be
      executed, by Lessee has been, or will be, duly executed and delivered by
      Lessee and constitutes, or will constitute, a legal, valid and binding
      obligation of Lessee, enforceable against Lessee in accordance with its
      terms, except as limited by bankruptcy, insolvency or other laws of
      general application relating to or affecting the enforcement of creditors'
      rights generally and general principles of equity.

            (d)   Non-Contravention. The execution and delivery by Lessee of the
      Operative Documents executed by Lessee and the performance and
      consummation of the transactions contemplated thereby do not (i) violate
      any Requirement of Law applicable to Lessee; (ii) violate any provision
      of, or result in the breach or the acceleration of, or entitle any other
      Person to accelerate (whether after the giving of notice or lapse of time
      or both), any Contractual Obligation of Lessee, where such violation,
      breach or acceleration is reasonable likely to have a Material Adverse
      Effect; or (iii) result in the creation or imposition of any Lien (or the
      obligation to create or impose any Lien) upon any property, asset or
      revenue of Lessee (except such Liens as may be created in favor of Lessor
      or Agent pursuant to this Agreement or the other Operative Documents).

            (e)   Approvals. No consent, approval, order or authorization of, or
      registration, declaration or filing with, any Governmental Authority or
      other Person (including, without limitation, the shareholders of any
      Person) is required in connection with the execution and delivery of the
      Operative Documents executed by Lessee and the performance and
      consummation by Lessee of the transactions contemplated thereby, 


                                       24
   25
      except (i) those that have been made or obtained and are in full force and
      effect and (ii) those which, if not made or obtained, are not reasonably
      likely to have a Material Adverse Effect.

            (f)   No Violation or Default. Neither Lessee nor any of its
      Subsidiaries is in violation of or in default with respect to (i) any
      Requirement of Law applicable to such Person; (ii) any Contractual
      Obligation of such Person (nor is there any waiver in effect which, if not
      in effect, would result in such a violation or default), where, in each
      case, such violation or default is reasonably likely to have a Material
      Adverse Effect. Without limiting the generality of the foregoing, neither
      Lessee nor any of its Subsidiaries (A) has violated any Environmental
      Laws, (B) has any liability under any Environmental Laws or (C) has
      received notice or other communication of an investigation or is under
      investigation by any Governmental Authority having authority to enforce
      Environmental Laws, where such violation, liability or investigation is
      reasonably likely to have a Material Adverse Effect. No Default has
      occurred and is continuing.

            (g)   Litigation. No actions (including, without limitation,
      derivative actions), suits, proceedings or investigations are pending or,
      to the knowledge of Lessee, threatened against Lessee or any of its
      Subsidiaries at law or in equity in any court or before any other
      Governmental Authority which (i) is reasonably likely (alone or in the
      aggregate) to have a Material Adverse Effect or (ii) seeks to enjoin,
      either directly or indirectly, the execution, delivery or performance by
      Lessee of the Operative Documents or the transactions contemplated
      thereby.

            (h)   Title; Possession Under Leases. Lessee and its Material
      Subsidiaries own and have good and marketable title, or a valid leasehold
      interest in, all their respective properties and assets as reflected in
      the most recent Financial Statements delivered to Agent (except those
      assets and properties disposed of in the ordinary course of business or
      otherwise in compliance with this Agreement since the date of such
      Financial Statements) and all respective assets and properties acquired by
      Lessee and its Material Subsidiaries since such date (except those
      disposed of in the ordinary course of business or otherwise in compliance
      with this Agreement), except in any case where the failure so to own or to
      have such title is not reasonably likely to have a Material Adverse
      Effect. Such assets and properties are subject to no Lien, except for
      Permitted Liens. Each of Lessee and its Material Subsidiaries has complied
      with all material obligations under all material leases to which it is a
      party, all such leases are in full force and each of Lessee and its
      Material Subsidiaries enjoys peaceful and undisturbed possession under
      such leases, except in any case where the failure so to comply, the
      failure of such leases to be in full force and effect or the failure to be
      in such possession is not reasonably likely to have a Material Adverse
      Effect.

            (i)   Financial Statements. The consolidated Financial Statements of
      Lessee which have been delivered to Agent, (i) are in accordance with the
      books and records of Lessee and its Subsidiaries, which have been
      maintained in accordance with good business practice; (ii) have been
      prepared in conformity with GAAP; and (iii) fairly present the financial
      conditions and results of operations of Lessee and its Subsidiaries as of
      the date thereof and for the period covered thereby. Lessee does not have
      any 


                                       25
   26
      Contingent Obligations, liability for taxes or other outstanding
      obligations which are material in the aggregate, except as disclosed in
      the audited Financial Statements dated June 30, 1997 furnished by Lessee
      to Agent prior to the date hereof, or in the Financial Statements
      delivered to Agent pursuant to clause (i) or (ii) of Subparagraph 5.01(a)
      to the extent the same are required under GAAP to be disclosed therein.

            (j)   Equity Securities. All outstanding Equity Securities of Lessee
      are duly authorized, validly issued, fully paid and non-assessable. All
      Equity Securities of Lessee have been offered and sold in compliance with
      all federal and state securities laws (excluding any foreign securities
      and tax laws related to stock options and ownership to the extent that
      non-compliance therewith is not reasonably likely to have a Material
      Adverse Effect).

            (k)   No Agreements to Sell Assets; Etc. As of the Closing Date,
      neither Lessee nor any of its Subsidiaries has any legal obligation,
      absolute or contingent, to any Person to sell the assets of Lessee or any
      of its Subsidiaries (other than sales in the ordinary course of business),
      or to effect any merger, consolidation or other reorganization of Lessee
      or any of its Subsidiaries or to enter into any agreement with respect
      thereto, except for sales or mergers permitted by Subparagraph 5.02(b) or
      Subparagraph 5.02(c).

            (l)   Employee Benefit Plans.

                  (i)   Based on the latest valuation of each Employee Benefit
            Plan that either Lessee or any ERISA Affiliate maintains or
            contributes to, or has any obligation under (which occurred within
            twelve months of the date of this representation), the aggregate
            benefit liabilities of such plan within the meaning of ss. 4001 of
            ERISA did not exceed the aggregate value of the assets of such plan.
            Neither Lessee nor any ERISA Affiliate has any liability with
            respect to any post-retirement benefit under any Employee Benefit
            Plan which is a welfare plan (as defined in section 3(1) of ERISA),
            other than liability for health plan continuation coverage described
            in Part 6 of Title I(B) of ERISA, which liability for health plan
            contribution coverage is not reasonably likely to have a Material
            Adverse Effect.

                  (ii)  Each Employee Benefit Plan complies, in both form and
            operation, in all material respects, with its terms, ERISA and the
            IRC, and no condition exists or event has occurred with respect to
            any such plan which would result in the incurrence by either Lessee
            or any ERISA Affiliate of any material liability, fine or penalty.
            Each Employee Benefit Plan, related trust agreement, arrangement and
            commitment of Lessee or any ERISA Affiliate is legally valid and
            binding and in full force and effect. No Employee Benefit Plan is
            being audited or investigated by any government agency or is subject
            to any pending or threatened claim or suit. Neither Lessee nor any
            ERISA Affiliate nor any fiduciary of any Employee Benefit Plan has
            engaged in a prohibited transaction under section 406 of ERISA or
            section 4975 of the IRC.


                                       26
   27

                  (iii) Neither Lessee nor any ERISA Affiliate contributes to or
            has any material contingent obligations to any Multiemployer Plan.
            Neither Lessee nor any ERISA Affiliate has incurred any material
            liability (including secondary liability) to any Multiemployer Plan
            as a result of a complete or partial withdrawal from such
            Multiemployer Plan under Section 4201 of ERISA or as a result of a
            sale of assets described in Section 4204 of ERISA. Neither Lessee
            nor any ERISA Affiliate has been notified that any Multiemployer
            Plan is in reorganization or insolvent under and within the meaning
            of Section 4241 or Section 4245 of ERISA or that any Multiemployer
            Plan intends to terminate or has been terminated under Section 4041A
            of ERISA.

            (m)   Other Regulations. Lessee is not subject to regulation under
      the Investment Company Act of 1940, the Public Utility Holding Company Act
      of 1935, the Federal Power Act, the Interstate Commerce Act, any state
      public utilities code or to any other Governmental Rule limiting its
      ability to incur indebtedness.

            (n)   Patent and Other Rights. Except as set forth in Lessee's 10-Q
      report and 10-K report delivered to Agent as items C(3) and C(4) of
      Schedule 3.01, Lessee and its Subsidiaries own, license or otherwise have
      the right to use under validly existing agreements (or can obtain under
      agreements not reasonably likely to have a Material Adverse Effect), all
      patents, licenses, trademarks, trade names, trade secrets, service marks,
      copyrights and all rights with respect thereto, which are required to
      conduct their businesses as now conducted, to the extent the failure to
      own, license or otherwise have the right to use such rights is not
      reasonably likely to have a Material Adverse Effect.

            (o)   Governmental Charges. Lessee and its Subsidiaries have filed
      or caused to be filed all tax returns which are required to be filed by
      them, except for any returns the non-filing of which are not reasonably
      likely to have a Material Adverse Effect. Lessee and its Subsidiaries have
      paid, or made provision for the payment of, all taxes and other
      Governmental Charges which have or may have become due pursuant to said
      returns or otherwise and all other indebtedness, except such Governmental
      Charges or indebtedness, if any, which are being (or promptly will be)
      contested in good faith and as to which adequate reserves (determined in
      accordance with GAAP) have been provided or which are not reasonably
      likely to have a Material Adverse Effect if unpaid.

            (p)   Margin Stock. Lessee owns no Margin Stock which, in the
      aggregate, would constitute a substantial part of the assets of Lessee,
      and no proceeds of any Advance will be used to purchase or carry, directly
      or indirectly, any Margin Stock or to extend credit, directly or
      indirectly, to any Person for the purpose of purchasing or carrying any
      Margin Stock.

            (q)   Subsidiaries, etc. Set forth in Schedule 4.01(q) (as
      supplemented by Lessee from time to time in a written notice to Agent) is
      a complete list of all of Lessee's Subsidiaries, the jurisdiction of
      incorporation of each and the percentage of voting shares owned directly
      or indirectly by Lessee.


                                       27
   28
            (r)   Catastrophic Events. Neither Lessee nor any of its
      Subsidiaries and none of their properties is or has been affected by any
      fire, explosion, accident, strike, lockout or other labor dispute,
      drought, storm, hail, earthquake, embargo, act of God or other casualty
      that is reasonably likely to have a Material Adverse Effect. There are no
      disputes presently subject to grievance procedure, arbitration or
      litigation under any of the collective bargaining agreements, employment
      contracts or employee welfare or incentive plans to which Lessee or any of
      its Subsidiaries is a party, and there are no strikes, lockouts, work
      stoppages or slowdowns, or, to the best knowledge of Lessee,
      jurisdictional disputes or organizing activities occurring or threatened
      which alone or in the aggregate are reasonably likely to have a Material
      Adverse Effect.

            (s)   The Property. The representations and warranties relating to
      each Tract set forth in Parts 1 - 5 of Schedule 4.01(s) are true and
      correct. The following representations and warranties apply to all Tracts
      of the Property on the Acquisition Date thereof:

                  (i)   All of the Property complies and will comply at all
            times (whether before commencement of any construction, during any
            construction or after completion of construction of any New
            Improvements) with all applicable Governmental Rules (including
            Title III of the Americans with Disabilities Act; Environmental
            Laws; and zoning, land use, building, planning and fire laws, rules,
            regulations and codes) and Insurance Requirements, except for
            violations which are not reasonably likely to have a Material
            Adverse Effect. No Hazardous Materials have been used, generated,
            manufactured, stored, treated, disposed of, transported or present
            on or released or discharged from the Property in any manner that is
            reasonably likely to have a Material Adverse Effect. There are no
            claims or actions which are reasonably likely to have a Material
            Adverse Effect pending or, to Lessee's knowledge, threatened against
            any of the Property by any Governmental Authority or any other
            Person relating to Hazardous Materials or pursuant to any
            Environmental Laws.

                  (ii)  None of the Improvements (whether before commencement of
            any construction, during any construction or after completion of
            construction of any New Improvements) encroach or will at any time
            encroach in any manner onto any adjoining land, except as permitted
            by express written and recorded encroachment agreements approved by
            Agent or as affirmatively insured against by appropriate title
            insurance.

                  (iii) All licenses, approvals, authorizations, consents,
            permits, easements and rights-of-way required for the use of any of
            the Property have been obtained or, if not yet required, will be
            obtained before required.

                  (iv)  After the purchase of each Tract of Property on the
            Acquisition Date therefor or, in the case of Property subject to the
            Phase II Lease Agreements after the termination thereof, Lessor will
            have good and valid fee simple title to such Property (or, in the
            case of the Tract 3 Land, a good and valid leasehold interest in
            such Land), subject to no Liens except for Permitted Property Liens.


                                       28
   29
            (t)   Chief Executive Office. Lessee's chief executive office is
      located at 160 Rio Robles Drive, San Jose, California 95134.

            (u)   Accuracy of Information Furnished. None of the Operative
      Documents and none of the other certificates, statements or information
      furnished to Lessor, Agent or any Participant by Lessee or any of its
      Subsidiaries in connection with the Operative Documents or the
      transactions contemplated thereby, when taken together with all
      registration statements and reports filed by Lessee with any securities
      exchange or the Securities and Exchange Commission and furnished to Agent
      pursuant to the Operative Documents, contains or will contain any untrue
      statement of a material fact or omits or will omit to state a material
      fact necessary to make the statements therein, in light of the
      circumstances under which they were made, not misleading.

Lessee shall be deemed to have reaffirmed, for the benefit of the Lessor
Parties, each representation and warranty contained in this Paragraph 4.01 on
and as of the date of each Credit Event (except for representations and
warranties expressly made as of a specified date, which shall be true as of such
date).

      4.02. Lessor's Representations and Warranties. In order to induce Lessee,
Agent and the Participants to enter into this Agreement and the other Operative
Documents to which they are parties, Lessor hereby represents and warranties to
Lessee, Agent and the Participants as follows:

            (a)   Due Incorporation, Qualification, etc. Lessor (i) is a
      corporation duly organized, validly existing and in good standing under
      the laws of its state of incorporation and (ii) has the power and
      authority to own, lease and operate its properties and carry on its
      business as now conducted. Lessor is a Wholly-Owned Subsidiary of ABN
      AMRO.

            (b)   Authority. The execution, delivery and performance by Lessor
      of each Operative Document executed, or to be executed, by Lessor and the
      consummation of the transactions contemplated thereby (i) are within the
      power of Lessor and (ii) have been duly authorized by all necessary
      actions on the part of Lessor.

            (c)   Enforceability. Each Operative Document executed, or to be
      executed, by Lessor has been, or will be, duly executed and delivered by
      Lessor and constitutes, or will constitute, a legal, valid and binding
      obligation of Lessor, enforceable against Lessor in accordance with its
      terms, except as limited by bankruptcy, insolvency or other laws of
      general application relating to or affecting the enforcement of creditors'
      rights generally and general principles of equity.

            (d)   Non-Contravention. The execution and delivery by Lessor of the
      Operative Documents executed by Lessor and the performance and
      consummation of the transactions contemplated thereby do not (i) violate
      any Requirement of Law applicable to Lessor; (ii) violate any provision
      of, or result in the breach or the acceleration of, or entitle any other
      Person to accelerate (whether after the giving of notice or lapse of time
      or both), any Contractual Obligation of Lessor; or (iii) result in the
      creation or imposition 


                                       29
   30
      of any Lien (or the obligation to create or impose any Lien) upon any
      property, asset or revenue of Lessor (except such Liens as may be created
      in favor of Agent pursuant to this Agreement or the other Operative
      Documents).

            (e)   Approvals. No consent, approval, order or authorization of, or
      registration, declaration or filing with, any Governmental Authority or
      other Person (including, without limitation, the shareholders of any
      Person) is required in connection with the execution and delivery of the
      Operative Documents executed by Lessor and the performance and
      consummation of the transactions contemplated thereby, except such as have
      been made or obtained and are in full force and effect.

            (f)   Litigation. No actions (including, without limitation,
      derivative actions), suits, proceedings or investigations are pending or,
      to the knowledge of Lessor, threatened against Lessor at law or in equity
      in any court or before any other Governmental Authority which (i) is
      reasonably likely (alone or in the aggregate) to materially and adversely
      affect the ability of Lessor to perform its obligations under the
      Operative Documents to which it is a party or (ii) seeks to enjoin, either
      directly or indirectly, the execution, delivery or performance by Lessor
      of the Operative Documents or the transactions contemplated thereby.

            (g)   Other Regulations. Lessor is not subject to regulation under
      the Investment Company Act of 1940, the Public Utility Holding Company Act
      of 1935, the Federal Power Act, the Interstate Commerce Act, any state
      public utilities code or to any other Governmental Rule limiting its
      ability to incur indebtedness.

            (h)   Chief Executive Office. Lessor's chief executive office is
      located at 180 Interstate Parkway North, Atlanta, Georgia 30339.

      4.03. Participants' Representations and Warranties. In order to induce
Lessee, Lessor and Agent to enter into this Agreement and the other Operative
Documents to which they are parties, each Participant hereby represents and
warranties to Lessee, Lessor and Agent as follows:

            (a)   Due Organization, Qualification, etc. Such Participant (i) is
      a legal entity duly organized, validly existing and in good standing under
      the laws of its jurisdiction of organization and (ii) has the power and
      authority to own, lease and operate its properties and carry on its
      business as now conducted.

            (b)   Authority. The execution, delivery and performance by such
      Participant of each Operative Document executed, or to be executed, by
      such Participant and the consummation of the transactions contemplated
      thereby (i) are within the power of such Participant and (ii) have been
      duly authorized by all necessary actions on the part of such Participant.

            (c)   Enforceability. Each Operative Document executed, or to be
      executed, by such Participant has been, or will be, duly executed and
      delivered by such Participant and constitutes, or will constitute, a
      legal, valid and binding obligation of such Participant, enforceable
      against such Participant in accordance with its terms, except as limited
      by 


                                       30
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      bankruptcy, insolvency or other laws of general application relating to or
      affecting the enforcement of creditors' rights generally and general
      principles of equity.

            (d)   Non-Contravention. The execution and delivery by such
      Participant of the Operative Documents executed by such Participant and
      the performance and consummation of the transactions contemplated thereby
      do not (i) violate any Requirement of Law applicable to such Participant;
      (ii) violate any provision of, or result in the breach or the acceleration
      of, or entitle any other Person to accelerate (whether after the giving of
      notice or lapse of time or both), any Contractual Obligation of such
      Participant; or (iii) result in the creation or imposition of any Lien (or
      the obligation to create or impose any Lien) upon any property, asset or
      revenue of such Participant (except such Liens as may be created in favor
      of Lessor or Agent pursuant to this Agreement or the other Operative
      Documents).

            (e)   Approvals. No consent, approval, order or authorization of, or
      registration, declaration or filing with, any Governmental Authority or
      other Person (including, without limitation, the shareholders of any
      Person) is required in connection with the execution and delivery of the
      Operative Documents executed by such Participant and the performance and
      consummation of the transactions contemplated thereby, except such as have
      been made or obtained and are in full force and effect.

            (f)   Litigation. No actions (including, without limitation,
      derivative actions), suits, proceedings or investigations are pending or,
      to the knowledge of such Participant, threatened against such Participant
      at law or in equity in any court or before any other Governmental
      Authority which (i) is reasonably likely (alone or in the aggregate) to
      materially and adversely affect the ability of such Participant to perform
      its obligations under the Operative Documents to which it is a party or
      (ii) seeks to enjoin, either directly or indirectly, the execution,
      delivery or performance by such Participant of the Operative Documents or
      the transactions contemplated thereby.

            (g)   Own Account. Such Participant is acquiring its participation
      interest hereunder for its own account for investment and not with a view
      to any distribution (as such term is used in Section 2(11) of the
      Securities Act of 1933) thereof, and, if in the future it should decide to
      dispose of its participation interest, it understands that it may do so
      only in compliance with the Securities Act of 1933 and the rules and
      regulations of the Securities and Exchange Commission thereunder and any
      applicable state securities laws.

            (h)   Capital, Etc. Such Participant is a financial institution with
      combined capital and surplus of not less than $500,000,000.


SECTION 5. COVENANTS.

      5.01. Lessee's Affirmative Covenants. Until the termination of this
Agreement and the satisfaction in full by Lessee of all Lessee Obligations
(other than inchoate indemnity obligations), Lessee will comply, and will cause
compliance, with the following affirmative covenants, unless Lessor and Required
Participants shall otherwise consent in writing:


                                       31
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            (a)   Financial Statements, Reports, etc. Lessee shall furnish to
      Agent, with sufficient copies for Lessor and each Participant (and Agent
      shall promptly furnish to Lessor and each Participant), the following,
      each in such form and such detail as Agent, Lessor or the Required
      Participants shall reasonably request:

                  (i)   As soon as available and in no event later than sixty
            (60) days after the last day of each fiscal quarter of Lessee (other
            than the last quarter in any fiscal year), a copy of the Financial
            Statements of Lessee and its Subsidiaries (prepared on a
            consolidated basis) for such quarter and for the fiscal year to
            date, certified by the president or chief financial officer of
            Lessee to present fairly the financial condition, results of
            operations and other information reflected therein and to have been
            prepared in accordance with GAAP (subject to normal year-end audit
            adjustments);

                  (ii)  As soon as available and in no event later than one
            hundred and ten (110) days after the close of each fiscal year of
            Lessee, (A) copies of the audited Financial Statements of Lessee and
            its Subsidiaries (prepared on a consolidated basis) for such year,
            audited by Price Waterhouse LLP or by other independent certified
            public accountants of recognized national standing acceptable to
            Agent, and (B) copies of the opinions delivered by such accountants
            in connection with all such Financial Statements;

                  (iii) Contemporaneously with the quarterly and year-end
            Financial Statements required by the foregoing clauses (i) and (ii),
            a compliance certificate of the President, Chief Financial Officer,
            Chief Executive Officer or the Vice-President of Finance of Lessee
            which (A) states that no Default has occurred and is continuing, or,
            if any such Default has occurred and is continuing, a statement as
            to the nature thereof and what action Lessee proposes to take with
            respect thereto and (B) sets forth, for the quarter or year covered
            by such Financial Statements or as of the last day of such quarter
            or year (as the case may be), the calculation of the financial
            ratios and tests provided in Paragraph 5.03;

                  (iv)  As soon as available and in no event later than sixty
            (60) days after the last day of each fiscal quarter of Lessee, a
            certificate of the President, Chief Financial Officer, Chief
            Executive Officer or the Vice-President of Finance of Lessee which
            sets forth the calculation of the Senior Funded Indebtedness/Capital
            Ratio for the consecutive four-quarter period ending on such day;

                  (v)   As soon as possible and in no event later than ten (10)
            Business Days after any Executive Officer of Lessee knows of the
            occurrence or existence of (A) any Reportable Event under any
            Employee Benefit Plan or Multiemployer Plan; (B) any actual or
            threatened litigation, suits, claims or disputes against Lessee or
            any of its Subsidiaries involving potential monetary damages payable
            by Lessee or its Subsidiaries of $25,000,000 or more; (C) any other
            event or condition which is reasonably likely to have a Material
            Adverse Effect; or (D) any Default; the statement of the President,
            Chief Financial Officer, Chief Executive Officer or the
            Vice-President of Finance of Lessee setting forth details of such


                                       32
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            event, condition or Default and the action which Lessee proposes to
            take with respect thereto;

                  (vi)  As soon as available and in no event later than ten (10)
            Business Days after they are sent, made available or filed, either
            (A) copies of all registration statements and reports filed by
            Lessee or any of its Subsidiaries with any securities exchange or
            the Securities and Exchange Commission (including, without
            limitation, all 10-Q, 10-K and 8-K reports, but without exhibits and
            excluding filings on Form S-8) or (B) e-mail notice (with a copy to
            Lessor and each Participant) of the website from which copies of
            such registration statements and reports may be downloaded; and

                  (vii) Such other information relating to the operations or
            condition (financial or otherwise) of Lessee or its Subsidiaries,
            and compliance by Lessee with the terms of this Agreement and the
            other Operative Documents as Lessor or Agent or any Participant may
            from time to time reasonably request.

      For the purposes of this Subparagraph 5.01(a), (1) the timely delivery by
      Lessee to Agent pursuant to clause (vi) of a copy of the Form 10-Q report
      filed by Lessee with the Securities and Exchange Commission for any
      quarter shall satisfy the requirements of clause (i) for such quarter and
      (2) the timely delivery by Lessee to Agent pursuant to clause (vi) of a
      copy of the Form 10-K report filed by Lessee with the Securities and
      Exchange Commission for any year shall satisfy the requirements of clause
      (ii)(A) for such year, provided that such reports contain the same
      information as required by clause (i) and clause (ii)(A), respectively.

            (b)   Books and Records. Lessee shall at all times keep proper books
      of record and account in which full, true and correct entries will be made
      of their transactions in accordance with GAAP.

            (c)   Inspections. Lessee and its Subsidiaries shall permit any
      Person designated by any Participant, upon reasonable notice and during
      normal business hours, to visit and inspect any of the properties and
      offices of Lessee and its Subsidiaries, to examine the books and records
      of Lessee and its Subsidiaries and make copies thereof and to discuss the
      affairs, finances and business of Lessee and its Subsidiaries with, and to
      be advised as to the same by, Lessee's Chief Financial Officer or
      Vice-President of Finance, all at such times and intervals as any
      Participant may reasonably request.

            (d)   Insurance. In addition to the insurance requirements set forth
      in the Lease Agreement with respect to the Property, Lessee and its
      Material Subsidiaries shall:

                  (i)   Carry and maintain insurance of the types and in the
            amounts customarily carried from time to time during the term of
            this Agreement by others engaged in substantially the same business
            as such Person and operating in the same geographic area as such
            Person, including, but not limited to, fire, public liability,
            property damage and worker's compensation;


                                       33
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                  (ii)  Carry and maintain each policy for such insurance with
            financially sound insurers; provided, however, that Lessee may, if
            no Event of Default has occurred and is continuing, self-insure; and

                  (iii) Deliver to Agent from time to time (but not more than
            once per year if no Event of Default has occurred and is
            continuing), as Agent may request, schedules setting forth all
            insurance then in effect.

            (e)   Governmental Charges and Other Indebtedness. Lessee and its
      Subsidiaries shall promptly pay and discharge when due all taxes and other
      Governmental Charges prior to the date upon which penalties accrue
      thereon, except (i) such taxes and Governmental Charges as may in good
      faith be contested or disputed, or for which arrangements for deferred
      payment have been made, provided that in each such case appropriate
      reserves as required by GAAP are maintained, and (ii) where the failure to
      so pay or discharge is not reasonably likely to have a Material Adverse
      Effect.

            (f)   Use of Proceeds. Lessee shall not use any part of the proceeds
      of any Advance, directly or indirectly, for the purpose of purchasing or
      carrying any Margin Stock or for the purpose of purchasing or carrying or
      trading in any securities under such circumstances as to involve Lessee or
      any Lessor Party in a violation of Regulations G, T, U or X issued by the
      Federal Reserve Board.

            (g)   General Business Operations. Each of Lessee and its Material
      Subsidiaries shall, except as otherwise permitted by Subparagraph 5.02(c),
      preserve and maintain its corporate existence and all of its rights,
      privileges and franchises reasonably necessary to the conduct of its
      business, where the failure so to preserve and maintain is reasonably
      likely to have a Material Adverse Effect. Each of Lessee and its
      Subsidiaries shall (i) conduct its business activities in compliance with
      all Requirements of Law and Contractual Obligations applicable to such
      Person, the violation of which is reasonably likely to have a Material
      Adverse Effect and (ii) keep all property useful and necessary in its
      business in good working order and condition, ordinary wear and tear
      excepted, where the failure so to keep is reasonably likely to have a
      Material Adverse Effect. Lessee shall maintain its chief executive office
      in the United States and shall not relocate its chief executive office
      outside of California without prior written notice to Agent.

      5.02. Lessee's Negative Covenants. Until the termination of this Agreement
and the satisfaction in full by Lessee of all Lessee Obligations (other than
inchoate indemnity obligations), Lessee will comply, and will cause compliance,
with the following negative covenants, unless Lessor and Required Participants
shall otherwise consent in writing:

            (a)   Liens. Neither Lessee nor any of its Material Subsidiaries
      shall create, incur, assume or permit to exist any Lien on or with respect
      to any of its assets or property of any character, whether now owned or
      hereafter acquired, except for the following ("Permitted Liens"):

                  (i)   Liens in favor of Lessor, Agent or any Participant
            securing the Lessee Obligations;


                                       34
   35
                  (ii)  Liens existing on the date of this Agreement;

                  (iii) Liens for taxes or other Governmental Charges not at the
            time delinquent or thereafter payable without penalty or being
            contested in good faith, provided that adequate reserves for the
            payment thereof as required by GAAP have been established;

                  (iv)  Liens of carriers, warehousemen, mechanics, materialmen,
            vendors, and landlords and other similar Liens imposed by law
            incurred in the ordinary course of business for sums not overdue for
            more than ninety (90) days or being contested in good faith,
            provided that adequate reserves for the payment thereof as required
            by GAAP have been established;

                  (v)   Deposits under workers' compensation, unemployment
            insurance and social security laws or to secure the performance of
            bids, tenders, contracts (other than for the repayment of borrowed
            money) or leases, or to secure statutory obligations of surety or
            appeal bonds or to secure indemnity, performance or other similar
            bonds in the ordinary course of business;

                  (vi)  Zoning restrictions, easements, rights-of-way, title
            irregularities and other similar encumbrances, which alone or in the
            aggregate are not substantial in amount and do not materially
            detract from the value of the property subject thereto or interfere
            with the ordinary conduct of the business of Lessee and its
            Subsidiaries, taken as a whole;

                  (vii) Banker's Liens and similar Liens (including set-off
            rights) in respect of bank deposits or securities accounts
            maintained in the ordinary course of business;

                  (viii) Liens securing purchase money Indebtedness and rights
            of vendors or lessors under conditional sale agreements, Capital
            Leases or other title retention agreements, provided that, in each
            case, (A) such Lien or right covers only the property, the
            acquisition of which was financed by such Indebtedness, together
            with all accessions thereto, substitutions and replacements therefor
            and the proceeds (including insurance) thereof (B) such Indebtedness
            was incurred at the time of or within one hundred and eighty (180)
            days after the acquisition by Lessee or one of its Subsidiaries of
            such property, (C) such Indebtedness does not exceed the purchase
            price of such property, together with reasonable installation costs,
            taxes and other similar expenses related to such property, and (D)
            such Lien or right extends only to such Indebtedness;

                  (ix)  Liens on the property or assets of any Subsidiary of
            Lessee in favor of Lessee or any other Subsidiary of Lessee;

                  (x)   Liens on accounts receivable sold pursuant to clause
            (vii) of Subparagraph 5.02(b);


                                       35
   36
                  (xi)  Liens incurred in connection with the extension, renewal
            or refinancing of the Indebtedness secured by the Liens described in
            clause (ii) or clause (viii) above, provided that any extension,
            renewal or replacement Lien (A) is limited to the property covered
            by the existing Lien, together with all accessions thereto,
            substitutions and replacements therefor and the proceeds (including
            insurance), and (B) secures Indebtedness which is no greater in
            amount and has material terms no less favorable to Lessor and the
            Participants than the Indebtedness secured by the existing Lien;

                  (xii) Permitted Property Liens in the Property;

                  (xiii) Liens on property of a Person existing at the time such
            Person or such Person's parent corporation becomes a Subsidiary of
            Lessee or any subsidiary of Lessee; provided that such Liens were in
            existence prior to the contemplation of such transaction and do not
            extend to any assets other than those of such Person:

                  (xiv) Liens on property existing at the time of acquisition
            thereof by Lessee or any Subsidiary of the Lessee, provided that
            such Liens were in existence prior to the contemplation of such
            acquisition and extend only to the property so acquired;

                  (xv)  Liens in favor of customs and revenue authorities to
            secure payment of customs duties in connection with the importation
            of goods in the ordinary course of business and other similar Liens
            arising in the ordinary course of business;

                  (xvi) Leases or subleases granted to third Persons not
            interfering with the ordinary course of business of Lessee or its
            Subsidiaries;

                  (xvii) Any attachment or judgement Lien not constituting an
            Event of Default under Subparagraph 5.01(h) of the Lease Agreement;

                  (xviii) Liens in favor of a trustee under any indenture
            securing amounts due to the trustee in connection with its services
            under such indenture;

                  (xix) Liens on proceeds of insurance in favor of insurance
            companies securing the payment of financed premiums;

                  (xx)  Liens under licensing agreements for use of intellectual
            property entered into the ordinary course of business; and

                  (xxi) Liens on leases and other chattel paper transferred
            pursuant to clause (viii) of Subparagraph 5.02(b);

                  (xxii) Other Liens on the property of Lessee and its
            Subsidiaries, provided that the aggregate principal amount of all
            Indebtedness secured by such 


                                       36
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            other Liens does not exceed at any time twenty percent (20%) of the
            consolidated net worth of Lessee and its Subsidiaries at such time;

      Provided, however, that the foregoing exceptions shall not be construed to
      permit any Liens, except for Permitted Property Liens, on any of the
      Property

            (b)   Asset Dispositions. Neither Lessee nor any of its Material
      Subsidiaries shall sell, lease, transfer or otherwise dispose of (each a
      "transfer") any of its assets or property, whether now owned or hereafter
      acquired, except for the following:

                  (i)   Transfers of inventory by Lessee and its Subsidiaries in
            the ordinary course of their businesses;

                  (ii)  Transfers of surplus, damaged, worn or obsolete
            equipment or inventory;

                  (iii) Transfers, in whole or in part, of Investments permitted
            by Subparagraph 5.02(d), provided that (A) such transfers are for
            not less than fair market value (except for transfers of assets
            acquired in an acquisition transaction) and (B) no Default has
            occurred and is continuing at the time of such transfer or will
            occur after giving effect to such transfer;

                  (iv)  Transfers of defaulted receivables to a collection
            agency in the ordinary course of business;

                  (v)   Licenses by Lessee or its Subsidiaries of its patents,
            copyrights, trademarks, trade names and service marks in the
            ordinary course of its business provided that, in each case (except
            in the case of licenses between Lessee and a Subsidiary or between
            one Subsidiary and another Subsidiary), the terms of the transaction
            are terms which then would prevail in the market for similar
            transactions between unaffiliated parties dealing at arm's length;

                  (vi)  Transfers of assets and property by Lessee to any of
            Lessee's Subsidiaries or by any of Lessee's Subsidiaries to Lessee
            or any of its other Subsidiaries;

                  (vii) Sales of accounts receivable to financial institutions
            in financing transactions, provided that (A) each such sale is (1)
            for not less than the fair market value of the receivables sold less
            a discount not exceeding twenty-five percent (25%) and (2) directly
            or indirectly for cash and (B) the aggregate amount of all such
            accounts receivable so sold and outstanding at any time shall not
            exceed fifteen percent (15%) of the consolidated net worth of Lessee
            and its Subsidiaries at such time;

                  (viii) Transfers of leases or other chattel paper to financial
            institutions in financing transactions or in connection with the
            securitization thereof, provided that no Default has occurred and is
            continuing at the time of such transfer or will occur after giving
            effect to such transfer; and


                                       37
   38
                  (ix)  Other transfers of assets and property for not less than
            fair market value, provided that the aggregate book value of all
            such assets and property so sold, leased, transferred or otherwise
            disposed of in any consecutive four-quarter period does not exceed
            twenty percent (20%) of the consolidated total assets of Lessee and
            its Subsidiaries on the last day immediately preceding such
            four-quarter period.

      Provided, however, that the foregoing transfers shall not be construed to
      permit any transfers of the Property, except for transfers permitted by
      the Lease Agreement.

            (c)   Mergers, Acquisitions, Etc. Neither Lessee nor any of its
      Material Subsidiaries shall consolidate with or merge into any other
      Person or permit any other Person to merge into it, acquire any Person as
      a new Subsidiary or acquire all or substantially all of the assets of any
      other Person, except for the following:

                  (i)   Any Wholly-Owned Subsidiary of Lessee may merge or
            consolidate with any other Wholly-Owned Subsidiary of Lessee or with
            Lessee, provided that, in the case of any merger or consolidation
            involving Lessee, Lessee is the surviving corporation; and

                  (ii)  Lessee or any Wholly-Owned Subsidiary of Lessee may (A)
            acquire as a direct Wholly-Owned Subsidiary any indirect
            Wholly-Owned Subsidiary or (B) acquire all or substantially all of
            the assets of any Wholly-Owned Subsidiary of Lessee; and

                  (iii) Lessee or any of its Subsidiaries may merge or
            consolidate with any other corporation, acquire any Person as a new
            Subsidiary or acquire all or substantially all of the assets of any
            other Person, provided that:

                        (A)   In the case of any merger or consolidation
                  involving Lessee, Lessee is the surviving corporation; and

                        (B)   No Default has occurred and is continuing at the
                  time of such merger, consolidation or acquisition or will
                  occur after giving effect to such merger, consolidation or
                  acquisition.

            (d)   Investments. Neither Lessee nor any of its Material
      Subsidiaries shall make any Investment except for the following:

                  (i)   Investments of Lessee and its Subsidiaries permitted by
            the investment policy of Lessee approved by its Board of Directors
            or in Cash Equivalents

                  (ii)  Investments arising in connection with transactions
            permitted by Subparagraph 5.02(c);

                  (iii) Investments of Lessee and its Subsidiaries in
            Subsidiaries;


                                       38
   39
                  (iv)  Investments existing on the date of this Agreement;

                  (v)   Investments consisting of the endorsement of negotiable
            instruments for deposit or collection;

                  (vi)  Investments in or to Lessee and Investments in or to
            Subsidiaries and guarantees or other credit support of the
            obligations of Lessee or of its Subsidiaries;

                  (vii) Investments consisting of loans to employees (including
            relocation loans) in the ordinary course of business;

                  (viii) Investments accepted in connection with transfers
            permitted under Subparagraph 5.02(b);

                  (ix)  Investments received in connection with the bankruptcy
            or reorganization of customers or suppliers and in settlement of
            delinquent obligations of, and other disputes with, customers or
            suppliers arising in the ordinary course of business;

                  (x)   Investments pursuant to or arising under currency,
            commodity or interest rate hedging arrangements entered into in the
            ordinary course of business for the purpose of directly mitigating
            risks associated with currency or interest rate changes or commodity
            prices;

                  (xi)  Investments consisting of notes receivable of, or
            prepaid royalties and other credit extensions (including equipment
            leases) to, customers and suppliers in the ordinary course of
            business;

                  (xii) Investments permitted under Subparagraph 5.02(c);

                  (xiii) Investments of Lessee and its Subsidiaries in joint
            ventures, partnerships and the securities of companies in related
            businesses on commercially reasonable terms; and

                  (xiv) Other Investments, provided that the aggregate book
            value of such other Investments does not exceed at any time
            twenty-five percent (25%) of the consolidated total assets of Lessee
            and its Subsidiaries at such time.

            (e)   Change in Business. Neither Lessee nor any of its Material
      Subsidiaries shall engage, either directly or indirectly through
      Affiliates, in any material line of business other than the semiconductor
      capital equipment business, the inspection and yield management business
      and other businesses incidental or reasonably related thereto.

            (f)   ERISA. Neither Lessee nor any ERISA Affiliate shall (i) adopt
      or institute any Employee Benefit Plan that is an employee pension benefit
      plan within the meaning of Section 3(2) of ERISA, (ii) take any action
      which will result in the partial or complete withdrawal, within the
      meanings of sections 4203 and 4205 of ERISA, from a 


                                       39
   40
      Multiemployer Plan, (iii) engage or permit any Person to engage in any
      transaction prohibited by section 406 of ERISA or section 4975 of the IRC
      involving any Employee Benefit Plan or Multiemployer Plan which would
      subject either Lessee or any ERISA Affiliate to any tax, penalty or other
      liability including a liability to indemnify, (iv) incur or allow to exist
      any accumulated funding deficiency (within the meaning of section 412 of
      the IRC or section 302 of ERISA), (v) fail to make full payment when due
      of all amounts due as contributions to any Employee Benefit Plan or
      Multiemployer Plan, (vi) fail to comply with the requirements of section
      4980B of the IRC or Part 6 of Title I(B) of ERISA, or (vii) adopt any
      amendment to any Employee Benefit Plan which would require the posting of
      security pursuant to section 401(a)(29) of the IRC, where singly or
      cumulatively, the above would have a Material Adverse Effect.

            (g)   Accounting Changes. Lessee shall not change (i) its fiscal
      year (currently July 1 through June 30) or (ii) its accounting practices
      except as permitted by GAAP.

      5.03. Lessee's Financial Covenants. Until the termination of this
Agreement and the satisfaction in full by Lessee of all Lessee Obligations
(other than inchoate indemnity obligations), Lessee will comply, and will cause
compliance, with the following financial covenants, unless Lessor and Required
Participants shall otherwise consent in writing:

            (a)   Quick Ratio. Lessee shall not permit its Quick Ratio to be
      less than 1.15 to 1.00 on the last day of any fiscal quarter.

            (b)   Liabilities/Tangible Net Worth Ratio. Lessee shall not permit
      its Liabilities/Tangible Net Worth Ratio to be greater than 0.85 to 1.00
      on the last day of any fiscal quarter.

            (c)   Debt Service Coverage Ratio. Lessee shall not permit its Debt
      Service Coverage Ratio for any consecutive four fiscal quarter period to
      be less than 3.50 to 1.00.

            (d)   Tangible Net Worth. Lessee shall not permit its Tangible Net
      Worth on the last day of any fiscal quarter (such date to be referred to
      herein as a "determination date") which occurs after June 30, 1997 (such
      date to be referred to herein as the "base date") to be less than the sum
      on such determination date of the following:

                  (i)   Eighty-five percent (85%) of the Tangible Net Worth of
            Lessee and its Subsidiaries on the base date;

                                      plus

                  (ii)  Fifty percent (50%) of the sum of Lessee's consolidated
            quarterly net income (ignoring any quarterly losses) for each fiscal
            quarter after the base date through and including the fiscal quarter
            ending on the determination date;

                                      plus

                  (iii) One hundred percent (100%) of the Net Proceeds of all
            Equity Securities issued by Lessee and its Subsidiaries (to Persons
            other than Lessee or 


                                       40
   41
            its Subsidiaries and net of repurchases of Equity Securities related
            solely to Lessee's stock option and incentive plans) during the
            period commencing on the base date and ending on the determination
            date;

                                      plus

                  (iv)  One hundred percent (100%) of the principal amount of
            all debt securities of Lessee and its Subsidiaries converted into
            Equity Securities of Lessee and its Subsidiaries during the period
            commencing on the base date and ending on the determination date;

                                      minus

                  (v)   One hundred percent (100%) of all non-recurring charges
            taken by Lessee and its Subsidiaries in connection with the
            acquisition of in-process technology during the period commencing on
            the base date and ending on the determination date.

      5.04. Lessor's Covenants. Until the termination of this Agreement and the
satisfaction in full by Lessor of all Lessor Obligations (other than inchoate
indemnity obligations), Lessor will comply, and will cause compliance, with the
following covenants, unless Lessee and Required Participants shall otherwise
consent in writing:

            (a)   Use of Proceeds. Lessor shall use the proceeds of all amounts
      delivered to Lessor by Participants pursuant to Subparagraph 2.05(a)
      solely to fund Advances.

            (b)   Lessor Liens. Lessor shall not create, incur, assume or permit
      to exist any Lessor Lien (other than any Lien granted to Agent or any
      Participant pursuant to the Operative Documents to secure the Lessor
      Obligations) and shall promptly discharge, at its sole cost and expense,
      any Lessor Lien on the Property (other than any Liens granted to Agent or
      any Participant pursuant to the Operative Documents to secure the Lessor
      Obligations); provided, however, that Lessor shall not be required so to
      discharge any such Lessor Lien if (i) the same is being (or promptly will
      be) contested in good faith by appropriate proceedings diligently
      prosecuted and there is no immediate risk of foreclosure upon any of the
      Property, and (ii) any such contest is completed and all Lessor Liens are
      discharged on or prior to the Expiration Date.

            (c)   Property Disposition. Lessor shall not sell, lease, transfer
      or otherwise dispose of its right, title and interest in the Property and
      the Operative Documents except as provided in Subparagraph 2.11(b) or
      Subparagraph 7.05(d), as provided in the Purchase Agreement, or after
      retaining the Property following the Expiration Date.

            (d)   Chief Executive Office. Lessor shall not change its chief
      executive office without giving Agent prompt written notice.

      5.05. Participants' Covenants. Each Participant covenants that it will not
fund its portion of any Advance with the assets of any "employee benefit plan"
(as defined in Section 


                                       41
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3(3) of ERISA) which is subject to Title I of ERISA or any "plan" (as defined in
Section 4975(e)(1) of the IRC.


SECTION 6. LESSOR, AGENT AND THEIR RELATIONS WITH PARTICIPANTS.

      6.01. Appointment of Agent. Each Participant hereby appoints and
authorizes Agent to act as its agent hereunder and under the other Operative
Documents with such powers as are expressly delegated to Agent by the terms of
this Agreement and the other Operative Documents, together with such other
powers as are reasonably incidental thereto. Lessor is not an agent for the
Participants or Agent, and neither this Agreement nor any other Operative
Document shall be construed to constitute or evidence a partnership among the
Lessor Parties or otherwise to impose upon Lessor or Agent any fiduciary duty.

      6.02. Powers and Immunities. Neither Lessor nor Agent shall have any
duties or responsibilities except those expressly set forth in this Agreement or
in any other Operative Document, be a trustee for any Participant or have any
fiduciary duty to any Participant. Notwithstanding anything to the contrary
contained herein, neither Lessor nor Agent shall be required to take any action
which is contrary to this Agreement or any other Operative Document or any
applicable Governmental Rule. Neither Lessor nor Agent nor any Participant shall
be responsible to any Participant for any recitals, statements, representations
or warranties made by Lessee or any of its Subsidiaries contained in this
Agreement or in any other Operative Document, for the value, validity,
effectiveness, genuineness, enforceability or sufficiency of this Agreement or
any other Operative Document or for any failure by Lessee or any of its
Subsidiaries to perform their respective obligations hereunder or thereunder.
Lessor and Agent may employ agents and attorneys-in-fact and shall not be
responsible to any Participant for the negligence or misconduct of any such
agents or attorneys-in-fact selected by it with reasonable care. Neither Lessor
nor Agent nor any of their respective directors, officers, employees, agents or
advisors shall be responsible to any Participant for any action taken or omitted
to be taken by it or them hereunder or under any other Operative Document or in
connection herewith or therewith, except for its or their own gross negligence
or willful misconduct. Except as otherwise provided under this Agreement, Lessor
and Agent shall take such action with respect to the Operative Documents as
shall be directed by the Required Participants.

      6.03. Reliance. Lessor or Agent shall be entitled to rely upon any
certificate, notice or other document (including any cable, telegram, facsimile
or telex) believed by it in good faith to be genuine and correct and to have
been signed or sent by or on behalf of the proper Person or Persons, and upon
advice and statements of legal counsel, independent accountants and other
experts selected by Lessor or Agent with reasonable care. As to any other
matters not expressly provided for by this Agreement, neither Lessor nor Agent
shall be required to take any action or exercise any discretion, but shall be
required to act or to refrain from acting upon instructions of the Required
Participants and shall in all cases be fully protected by the Participants in
acting, or in refraining from acting, hereunder or under any other Operative
Document in accordance with the instructions of the Required Participants, and
such instructions of the Required Participants and any action taken or failure
to act pursuant thereto shall be binding on all of the Participants.


                                       42
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      6.04. Defaults. Neither Lessor nor Agent shall be deemed to have knowledge
or notice of the occurrence of any Default unless Lessor or Agent has received a
written notice from a Participant or Lessee, referring to this Agreement,
describing such Default and stating that such notice is a "Notice of Default".
If Lessor and Agent receive such a notice of the occurrence of a Default, Agent
shall give prompt notice thereof to the Participants. Lessor and Agent shall
take such action with respect to such Default as shall be reasonably directed by
the Required Participants; provided, however, that until Lessor and Agent shall
have received such directions, Lessor or Agent may (but shall not be obligated
to) take such action, or refrain from taking such action, with respect to such
Default as it shall deem advisable in the best interest of the Participants.

      6.05. Indemnification. Without limiting the Obligations of Lessee
hereunder, each Participant agrees to indemnify Lessor and Agent (to the extent
not previously reimbursed by Lessee), ratably in accordance with such
Participant's Proportionate Share, for any and all liabilities, obligations,
losses, damages, penalties, actions, judgments, suits, costs, expenses or
disbursements of any kind or nature whatsoever which may at any time be imposed
on, incurred by or asserted against Lessor or Agent in any way relating to or
arising out of this Agreement or any documents contemplated by or referred to
herein or therein or the transactions contemplated hereby or thereby or the
enforcement of any of the terms hereof or thereof; provided, however, that no
Participant shall be liable for any of the foregoing to the extent they arise
from Lessor's or Agent's gross negligence or willful misconduct, provided,
further however, that to the extent indemnification payments made by the
Participants pursuant to this Paragraph 6.05 are subsequently recovered from or
for the account of Lessee, such previously paid indemnification payments shall
be promptly refunded to the Participants by Lessor and Agent. Lessor or Agent
shall be fully justified in refusing to take or in continuing to take any action
hereunder unless it shall first be indemnified to its satisfaction by the
Participants against any and all liability and expense which may be incurred by
it by reason of taking or continuing to take any such action. The obligations of
each Participant under this Paragraph 6.05 shall survive the payment and
performance of the Lessee Obligations, the termination of this Agreement and any
Participant ceasing to be a party to this Agreement (with respect to events
which occurred prior to the time such Participant ceased to be a Participant
hereunder).

      6.06. Non-Reliance. Each Participant represents that it has, independently
and without reliance on Lessor, Agent, or any other Participant, and based on
such documents and information as it has deemed appropriate, made its own
appraisal of the business, prospects, management, financial condition and
affairs of Lessee and the Subsidiaries and its own decision to enter into this
Agreement and agrees that it will, independently and without reliance upon
Lessor, Agent or any other Participant, and based on such documents and
information as it shall deem appropriate at the time, continue to make its own
appraisals and decisions in taking or not taking action under this Agreement or
any other Operative Document. Neither Lessor nor Agent nor any of their
respective affiliates nor any of their respective directors, officers,
employees, agents or advisors shall (a) be required to keep any Participant
informed as to the performance or observance by Lessee or any of its
Subsidiaries of the obligations under this Agreement or any other document
referred to or provided for herein or to make inquiry of, or to inspect the
properties or books of Lessee or any of its Subsidiaries; (b) have any duty or
responsibility to provide any Participant with any credit or other information
concerning Lessee or any of its Subsidiaries which may come into the possession
of Lessor or Agent, except for notices, reports 

                                       43



   44
and other documents and information expressly required to be furnished to the
Participants by Lessor or Agent hereunder; or (c) be responsible to any
Participant for (i) any recital, statement, representation or warranty made by
Lessee or any officer, employee or agent of Lessee in this Agreement or in any
of the other Operative Documents, (ii) the value, validity, effectiveness,
genuineness, enforceability or sufficiency of this Agreement or any Operative
Document, (iii) the value or sufficiency of the Property or the validity or
perfection of any of the liens or security interests intended to be created by
the Operative Documents, or (iv) any failure by Lessee to perform its
obligations under this Agreement or any other Operative Document.

      6.07. Resignation or Removal of Agent. Agent may resign at any time by
giving thirty (30) days prior written notice thereof to Lessee and the
Participants, and Agent may be removed at any time with or without cause by the
Required Participants. Upon any such resignation or removal, the Required
Participants shall have the right to appoint a successor Agent, which Agent, if
not a Participant, shall be reasonably acceptable to Lessee; provided, however,
that Lessee shall have no right to approve a successor Agent if a Default has
occurred and is continuing. Upon the acceptance of any appointment as Agent
hereunder by a successor Agent, such successor Agent shall thereupon succeed to
and become vested with all the rights, powers, privileges and duties of the
retiring Agent, and the retiring Agent shall be discharged from the duties and
obligations thereafter arising hereunder. After any retiring Agent's resignation
or removal hereunder as Agent, the provisions of this Section VI and any other
provision of this Agreement or any other Operative Document which by its terms
survives the termination of this Agreement shall continue in effect for its
benefit in respect of any actions taken or omitted to be taken by it while it
was acting as Agent.

      6.08. Authorization. Agent is hereby authorized by the Participants to
execute, deliver and perform, each of the Operative Documents to which Agent is
or is intended to be a party and each Participant agrees to be bound by all of
the agreements of Agent contained in the Operative Documents.

      6.09. Lessor and Agent in their Individual Capacities. Lessor, Agent and
their respective affiliates may make loans to, accept deposits from and
generally engage in any kind of banking or other business with Lessee and its
Subsidiaries and affiliates as though Lessor were not Lessor hereunder and Agent
were not Agent hereunder. With respect to Advances, if any, made by Agent in its
capacity as a Participant, Agent in its capacity as a Participant shall have the
same rights and powers under this Agreement and the other Operative Documents as
any other Participant and may exercise the same as though it were not Agent, and
the terms "Participant" or "Participants" shall include Agent in its capacity as
a Participant.


SECTION 7. MISCELLANEOUS

      7.01. Notices. Except as otherwise provided herein, all notices, requests,
demands, consents, instructions or other communications to or upon Lessor,
Lessee, any Participant or Agent under this Agreement or the other Operative
Documents shall be in writing and faxed, mailed or delivered, if to Lessor,
Lessee or Agent, at its respective facsimile number or address set forth below
or, if to any Participant, at the address or facsimile number specified beneath
the


                                       44
   45
heading "Address for Notices" under the name of such Participant in Part B
of Schedule I (or to such other facsimile number or address for any party as
indicated in any notice given by that party to the other parties). All such
notices and communications shall be effective (a) when sent by Federal Express
or other overnight service of recognized standing, on the Business Day following
the deposit with such service; (b) when mailed, first class postage prepaid and
addressed as aforesaid through the United States Postal Service, upon receipt;
(c) when delivered by hand, upon delivery; and (d) when faxed, upon confirmation
of receipt; provided, however, that any Advance Request, Notice of Rental Period
Selection, Extension Request, Notice of Term Purchase Option Exercise, Notice of
Marketing Option Exercise or Notice of Expiration Date Purchase Option Exercise
delivered to Lessor or Agent shall not be effective until received by Lessor or
Agent.

                  Lessee:           KLA-Tencor Corporation
                                    160 Rio Robles Drive
                                    San Jose, California 95134
                                    Attn:  Treasurer
                                    Tel:  (408) 875-2143
                                    Fax: (408) 434-4268

                                    and

                                    KLA-Tencor Corporation
                                    160 Rio Robles Drive
                                    San Jose, California 95134
                                    Attn: General Counsel
                                    Tel:  (408) 875-2423
                                    Fax:  (408) 875-2002


                  Lessor:           Lease Plan U.S.A., Inc.
                                    c/o ABN AMRO Bank N.V.
                                    135 South LaSalle Street, Suite 711
                                    Chicago, IL 60603
                                    Attn: David M. Shipley
                                    Tel: (312) 904-2183
                                    Fax: (312) 904-6217


                  Agent:            ABN AMRO Bank N.V.
                                    Capital Markets-Syndications Group
                                    1325 Avenue of the Americas, 9th Floor
                                    New York, NY  10019
                                    Attn:  Linda Boardman
                                    Tel: (212) 314-1724
                                    Fax: (212) 314-1709


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                                    With a copy to:

                                    ABN AMRO Bank N.V.
                                    101 California Street, Suite 4550
                                    San Francisco, CA  94111-5812
                                    Attn:  Bruce Swords
                                    Tel: (415) 984-3721
                                    Fax: (415) 362-3524


Each Advance Request, Notice of Rental Period Selection, Extension Request,
Notice of Term Purchase Option Exercise, Notice of Marketing Option Exercise and
Notice of Expiration Date Purchase Option Exercise shall be given by Lessee to
Agent's office located at its address referred to above during its normal
business hours; provided, however, that any such notice received by Agent after
10:00 a.m. on any Business Day shall be deemed received by Agent on the next
Business Day. In any case where this Agreement authorizes notices, requests,
demands or other communications by Lessee to any Lessor Party to be made by
telephone or facsimile, any Lessor Party may conclusively presume that anyone
purporting to be a person designated in any incumbency certificate or other
similar document received by such Lessor Party is such a person.

      7.02. Expenses. Lessee shall pay on demand, whether or not any Advance is
made hereunder, (a) all reasonable fees and expenses, including reasonable
attorneys' fees and expenses, incurred by Lessor and Agent in connection with
the preparation, negotiation, execution and delivery of, the consummation of the
transactions contemplated by and the exercise of their duties under, this
Agreement and the other Operative Documents, and the preparation, negotiation,
execution and delivery of amendments and waivers hereunder and thereunder and
(b) all reasonable fees and expenses, including reasonable attorneys' fees and
expenses, incurred by the Lessor Parties in the enforcement or attempted
enforcement of any of the Lessee Obligations or in preserving any of the Lessor
Parties' rights and remedies (including all such fees and expenses incurred in
connection with any "workout" or restructuring affecting the Operative Documents
or the Lessee Obligations or any bankruptcy or similar proceeding involving
Lessee or any of its Subsidiaries). As used herein, the term "reasonable
attorneys' fees and expenses" shall include, without limitation, allocable costs
and expenses of Agent's and Participants' in-house legal counsel and staff. The
obligations of Lessee under this Paragraph 7.02 shall survive the payment and
performance of the Lessee Obligations and the termination of this Agreement.

      7.03. Indemnification. To the fullest extent permitted by law, Lessee
agrees to protect, indemnify, defend and hold harmless, on an after-tax basis,
the Lessor Parties and the other Indemnitees from and against any and all
liabilities, losses, damages or expenses of any kind or nature (including
Indemnified Taxes but not other taxes) and from any suits, claims or demands
(including in respect of or for reasonable attorney's fees and other expenses)
arising on account of or in connection with any matter or thing or action or
failure to act by Indemnitees, or any of them, arising out of or relating to the
Operative Documents, any transaction contemplated thereby or the Property,
including any use by Lessee of the Property or the Advances, except to the
extent such liability arises from (a) the willful misconduct or gross negligence
of such Indemnitee, (b) any act or occurrence which first occurs after the Lease
Agreement has 


                                       46
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terminated and Lessee is no longer in possession of the Property, (c) the breach
by any Lessor Party of its obligations under the Operative Documents or (d)
except as otherwise specifically provided in the Operative Documents, the
performance by any Lessor Party of its obligations thereunder. Upon receiving
knowledge of any suit, claim or demand asserted by a third party that any Lessor
Party believes is covered by this indemnity, such Lessor Party shall give Lessee
notice of the matter and an opportunity to defend it, at Lessee's sole cost and
expense, with legal counsel reasonably satisfactory to such Lessor Party. Such
Lessor Parties may also require Lessee to defend the matter. Any failure or
delay of any Lessor Party to notify Lessee of any such suit, claim or demand
shall not relieve Lessee of its obligations under this Paragraph 7.03. The
obligations of Lessee under this Paragraph 7.03 shall survive the payment and
performance of the Lessee Obligations and the termination of this Agreement.

      7.04. Waivers; Amendments. Any term, covenant, agreement or condition of
this Agreement or any other Operative Document may be amended or waived if such
amendment or waiver is in writing and is signed by Lessor, Lessee and the
Required Participants; provided, however that:

            (a)   Any amendment, waiver or consent which (i) increases the Total
      Commitment, (ii) extends the Commitment Termination Date or the Scheduled
      Expiration Date, (iii) reduces the Rental Rate or any fees or other
      amounts payable for the account of the Participants hereunder, (iv)
      postpones any date scheduled for any payment of Base Rent or any fees or
      other amounts payable for the account of the Participants hereunder or
      thereunder, (v) amends Paragraph 2.06 or this Paragraph 7.04, (vi) amends
      the definition of Required Participants or (vii) releases Lessor's or
      Agent's interest in any substantial part of the Property, must be in
      writing and signed or approved in writing by all Participants;

            (b)   Any amendment, waiver or consent which increases or decreases
      the Proportionate Share or Commitment of any Participant must be in
      writing and signed by such Participant; and

            (c)   Any amendment, waiver or consent which affects the rights or
      obligations of Agent must be in writing and signed by Agent.

No failure or delay by any Lessor Party in exercising any right hereunder shall
operate as a waiver thereof or of any other right nor shall any single or
partial exercise of any such right preclude any other further exercise thereof
or of any other right. Unless otherwise specified in such waiver or consent, a
waiver or consent given hereunder shall be effective only in the specific
instance and for the specific purpose for which given.

      7.05. Successors and Assigns.

            (a)   Binding Effect. This Agreement and the other Operative
      Documents shall be binding upon and inure to the benefit of Lessee,
      Lessor, the Participants, Agent and their respective permitted successors
      and assigns. All references in this Agreement to any Person shall be
      deemed to include all successors and assigns of such Person.

            (b)   Participant Assignments.


                                       47
   48
                  (i)   Any Participant may, at any time, sell and assign to any
            other Participant or any Eligible Assignee (individually, an
            "Assignee Participant") all or a portion of its rights and
            obligations under this Agreement and the other Operative Documents
            (such a sale and assignment to be referred to herein as an
            "Assignment") pursuant to an assignment agreement in the form of
            Exhibit L (an "Assignment Agreement"), executed by each Assignee
            Participant and such assignor Participant (an "Assignor
            Participant") and delivered to Agent for its acceptance and
            recording in the Register; provided, however, that:

                        (A)   Without the written consent of Lessor, Agent and,
                  if no Default has occurred and is continuing, Lessee (which
                  consent of Lessor, Agent and Lessee shall not be unreasonably
                  withheld), no Participant may make any Assignment to any
                  Assignee Participant which is not, immediately prior to such
                  Assignment, a Participant hereunder or an Affiliate thereof;
                  or

                        (B)   Without the written consent of Lessor, Agent and,
                  if no Default has occurred and is continuing, Lessee (which
                  consent of Lessor, Agent and Lessee shall not be unreasonably
                  withheld), no Participant may make any Assignment to any
                  Assignee Participant if, after giving effect to such
                  Assignment, the Commitment of such Participant or such
                  Assignee Participant would be less than Five Million Dollars
                  ($5,000,000) (except that a Participant may make an Assignment
                  which reduces its Commitment to zero without the written
                  consent of Lessor, Agent or Lessee); or

                        (C)   Without the written consent of Lessor, Agent and,
                  if no Default has occurred and is continuing, Lessee (which
                  consent of Lessor, Agent and Lessee shall not be unreasonably
                  withheld), no Participant may make any Assignment of its
                  Outstanding Tranche A Participation Amount or its Outstanding
                  Tranche B Participation Amount which does not assign and
                  delegate an equal pro rata interest in (1) such Participant's
                  Outstanding Tranche A Participation Amount and its Outstanding
                  Tranche B Participation Amount, (2) such Participant's Tranche
                  A Percentage and its Tranche B Percentage, and (3) such
                  Participant's other rights, duties and obligations relating to
                  the Tranche A Portion and the Tranche B Portion under this
                  Agreement and the other Operative Documents.

                        (D)   Without the written consent of Lessor, Agent and,
                  if no Default has occurred and is continuing, Lessee (which
                  consent of Lessor, Agent and Lessee shall not be unreasonably
                  withheld), no Tranche C Participant may make any Assignment of
                  its Outstanding Tranche C Participation Amount which does not
                  assign and delegate an equal pro rata interest in (1) such
                  Participant's Outstanding Tranche C Participation Amount, (2)
                  such Participant's Tranche C Percentage, and (3) such
                  Participant's other rights, duties and obligations relating to
                  the Tranche C Portion under this Agreement and the other
                  Operative Documents.


                                       48
   49
            Upon such execution, delivery, acceptance and recording of each
            Assignment Agreement, from and after the Assignment Effective Date
            determined pursuant to such Assignment Agreement, (y) each Assignee
            Participant thereunder shall be a Participant hereunder with a
            Tranche A Percentage, Tranche B Percentage, Tranche C Percentage and
            Proportionate Share as set forth on Attachment 1 to such Assignment
            Agreement (under the caption "Tranche Percentages and Proportionate
            Shares After Assignment") and shall have the rights, duties and
            obligations of such a Participant under this Agreement and the other
            Operative Documents, and (z) the Assignor Participant thereunder
            shall be a Participant with a Tranche A Percentage, Tranche B
            Percentage, Tranche C Percentage and Proportionate Share as set
            forth on Attachment 1 to such Assignment Agreement (under the
            caption "Tranche Percentages and Proportionate Shares After
            Assignment") , or, if the Proportionate Share of the Assignor
            Participant has been reduced to 0%, the Assignor Participant shall
            cease to be a Participant and to have any obligation to fund any
            portion of any Advance; provided, however, that any such Assignor
            Participant which ceases to be a Participant shall continue to be
            entitled to the benefits of any provision of this Agreement which by
            its terms survives the termination of this Agreement. Each
            Assignment Agreement shall be deemed to amend Schedule I to the
            extent, and only to the extent, necessary to reflect the addition of
            each Assignee Participant, the deletion of each Assignor Participant
            which reduces its Proportionate Share to 0% and the resulting
            adjustment of Tranche A Percentages, Tranche B Percentages, Tranche
            C Percentages and Proportionate Shares arising from the purchase by
            each Assignee Participant of all or a portion of the rights and
            obligations of an Assignor Participant under this Agreement and the
            other Operative Documents. Each Assignee Participant which was not
            previously a Participant hereunder and which is not incorporated
            under the laws of the United States of America or a state thereof
            shall, within three (3) Business Days of becoming a Participant,
            deliver to Lessee and Agent two duly completed copies of United
            States Internal Revenue Service Form 1001 or 4224 (or successor
            applicable form), as the case may be, certifying in each case that
            such Participant is entitled to receive payments under this
            Agreement without deduction or withholding of any United States
            federal income taxes.

                  (ii)  Agent shall maintain at its address referred to in
            Paragraph 7.01 a copy of each Assignment Agreement delivered to it
            and a register (the "Register") for the recordation of the names and
            addresses of the Participants and the Tranche A Percentage, Tranche
            B Percentage, Tranche C Percentage and Proportionate Share of each
            Participant from time to time. The entries in the Register shall be
            conclusive in the absence of manifest error, and Lessee, Agent and
            the Participants may treat each Person whose name is recorded in the
            Register as the owner of the interests recorded therein for all
            purposes of this Agreement. The Register shall be available for
            inspection by Lessee or any Participant at any reasonable time and
            from time to time upon reasonable prior notice.

                  (iii) Upon its receipt of an Assignment Agreement executed by
            an Assignor Participant and an Assignee Participant (and, to the
            extent required by 


                                       49
   50
            clause (i) of this Subparagraph 7.05(b), by Lessor, Agent and
            Lessee), together with payment to Agent by Assignor Participant of a
            registration and processing fee of $2,500, Agent shall (A) promptly
            accept such Assignment Agreement and (B) on the Assignment Effective
            Date determined pursuant thereto record the information contained
            therein in the Register and give notice of such acceptance and
            recordation to Lessor, the Participants and Lessee. Agent may, from
            time to time at its election, prepare and deliver to Lessor, the
            Participants and Lessee a revised Schedule I reflecting the names,
            addresses and respective Proportionate Shares of all Participants
            then parties hereto.

                  (iv)  Subject to Subparagraph 7.13(g), the Lessor Parties may
            disclose the Operative Documents and any financial or other
            information relating to Lessee or any Subsidiary to each other or to
            any potential Assignee Participant.

            (c)   Participant Subparticipations. Any Participant may at any time
      sell to one or more banks or other financial institutions
      ("Subparticipants") subparticipation interests in the rights and interests
      of such Participant under this Agreement and the other Operative
      Documents. In the event of any such sale by a Participant of
      subparticipation interests, such Participant's obligations under this
      Agreement and the other Operative Documents shall remain unchanged, such
      Participant shall remain solely responsible for the performance thereof
      and Lessee and the other Lessor Parties shall continue to deal solely and
      directly with such Participant in connection with such Participant's
      rights and obligations under this Agreement. Any agreement pursuant to
      which any such sale is effected may require the selling Participant to
      obtain the consent of the Subparticipant in order for such Participant to
      agree in writing to any amendment, waiver or consent of a type specified
      in clause (i), (ii), (iii) or (iv) of Subparagraph 7.04(a) but may not
      otherwise require the selling Participant to obtain the consent of such
      Subparticipant to any other amendment, waiver or consent hereunder. Lessee
      agrees that any Participant which has transferred any subparticipation
      interest shall, notwithstanding any such transfer, be entitled to the full
      benefits accorded such Participant under Paragraph 2.12, Paragraph 2.13,
      and Paragraph 2.14, as if such Participant had not made such transfer.

            (d)   Lessor Assignments. Lessor may, upon one (1) month's prior
      written notice to Lessee and Agent, sell and assign all of its right,
      title and interest in the Property and its rights, powers, privileges,
      duties and obligations under this Agreement and the other Operative
      Documents, provided that:

                  (i)   If such sale and assignment is effected after either (A)
            the occurrence of a Change of Law which makes it unlawful or
            unreasonably burdensome for Lessor to hold legal or beneficial title
            to the Property or to perform its obligations and duties under this
            Agreement and the other Operative Documents or (B) the resignation
            or removal of the Agent which was the Agent at the time Lessor
            became the Lessor, the purchaser/assignee (the "successor Lessor")
            shall be either (1) a Participant or an Eligible Assignee that is a
            multi-asset Person having substantial assets beyond its interest in
            the Property and the Operative Documents or (2) a Person approved as
            provided in clause (ii) below; or


                                       50
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                  (ii)  If such sale and assignment is effected in any other
            circumstance, the successor Lessor shall be approved in writing by
            Agent, Required Participants and, if no Default has occurred and is
            continuing, Lessee (which consents of Agent, Required Participants
            and Lessee shall not be unreasonably withheld); and

                  (iii) The successor Lessor executes such documents,
            instruments and agreements as may reasonably be necessary to
            evidence its agreement to assume all of the obligations and duties
            of the Lessor under this Agreement and the other Operative
            Documents.

      Upon the consummation of any such sale and assignment, (A) the successor
      Lessor shall become the "Lessor" and shall succeed to and become vested
      with all the rights, powers, privileges, duties and obligations of the
      Lessor under this Agreement and the other Operative Documents and (B) the
      retiring Lessor shall be discharged from the duties and obligations of the
      Lessor thereafter arising under this Agreement and the other Operative
      Documents. After any retiring Lessor's discharge as the Lessor, the
      provisions of Section VI and any other provision of this Agreement or any
      other Operative Document which by its terms survives the termination of
      this Agreement shall continue in effect for its benefit in respect of any
      actions taken or omitted to be taken by it while it was acting as the
      Lessor.

      7.06. Setoff. In addition to any rights and remedies of the Participants
provided by law, each Participant shall have the right, with the prior written
consent of Agent, but without prior notice to or consent of Lessee, any such
notice and consent being expressly waived by Lessee to the extent permitted by
applicable law, upon the occurrence and during the continuance of an Event of
Default, to set-off and apply against the Lessee Obligations, whether matured or
unmatured, any amount owing from such Participant to Lessee, at or at any time
after, the occurrence of such Event of Default. The aforesaid right of set-off
may be exercised by such Participant against Lessee or against any trustee in
bankruptcy, debtor in possession, assignee for the benefit of creditors,
receiver or execution, judgment or attachment creditor of Lessee or against
anyone else claiming through or against Lessee or such trustee in bankruptcy,
debtor in possession, assignee for the benefit of creditors, receiver, or
execution, judgment or attachment creditor, notwithstanding the fact that such
right of set-off shall not have been exercised by such Participant prior to the
occurrence of an Event of Default. Each Participant agrees promptly to notify
Lessee after any such set-off and application made by such Participant, provided
that the failure to give such notice shall not affect the validity of such
set-off and application.

      7.07. No Third Party Rights. Nothing expressed in or to be implied from
this Agreement is intended to give, or shall be construed to give, any Person,
other than the parties hereto and their permitted successors and assigns
hereunder, any benefit or legal or equitable right, remedy or claim under or by
virtue of this Agreement or under or by virtue of any provision herein.

      7.08. Partial Invalidity. If at any time any provision of this Agreement
or any other Operative Document is or becomes illegal, invalid or unenforceable
in any respect under the law or any jurisdiction, neither the legality, validity
or enforceability of the remaining provisions of this Agreement or the other
Operative Documents nor the legality, validity or enforceability of 


                                       51
   52
such provision under the law of any other jurisdiction shall in any way be
affected or impaired thereby.

      7.09. JURY TRIAL. EACH OF LESSEE AND THE LESSOR PARTIES, TO THE FULLEST
EXTENT PERMITTED BY APPLICABLE LAW, HEREBY IRREVOCABLY WAIVES ALL RIGHT TO TRIAL
BY JURY AS TO ANY ISSUE RELATING TO THE OPERATIVE DOCUMENTS IN ANY ACTION,
PROCEEDING, OR COUNTERCLAIM ARISING OUT OF OR RELATING TO ANY OPERATIVE
DOCUMENT.

      7.10. Counterparts. This Agreement may be executed in any number of
identical counterparts, any set of which signed by all the parties hereto shall
be deemed to constitute a complete, executed original for all purposes.

      7.11. No Joint Venture, Etc. Neither this Agreement nor any other
Operative Document nor any transaction contemplated hereby or thereby shall be
construed to (a) constitute a partnership or joint venture between Lessee and
any Lessor Party or (b) impose upon any Lessor Party any agency relationship
with or fiduciary duty to Lessee.

      7.12. Usury Savings Clause. Nothing contained in this Agreement or any
other Operative Documents shall be deemed to require the payment of interest or
other charges by Lessee in excess of the amount the applicable Lessor Parties
may lawfully charge under applicable usury laws. In the event any Lessor Party
shall collect monies which are deemed to constitute interest which would
increase the effective interest rate to a rate in excess of that permitted to be
charged by applicable law, all such sums deemed to constitute excess interest
shall, upon such determination, at the option of Lessor, be returned to Lessee
or credited against other Lessee Obligations.

      7.13. Confidentiality. No Lessor Party shall disclose to any Person any
information with respect to Lessee or any of its Subsidiaries which is furnished
pursuant to this Agreement or under the other Operative Documents, except that
any Lessor Party may disclose any such information (a) to its own directors,
officers, employees, auditors, counsel and other advisors and to its Affiliates;
(b) to any other Lessor Party; (c) which is otherwise available to the public;
(d) if required or appropriate in any report, statement or testimony submitted
to any Governmental Authority having or claiming to have jurisdiction over such
Lessor Party; (e) if required or appropriate in response to any summons or
subpoena or in connection with any litigation; (f) to comply with any
Requirement of Law applicable to such Lessor Party; (g) to any Assignee
Participant or Subparticipant or any prospective Assignee Participant or
Subparticipant, provided that such Assignee Participant or Subparticipant or
prospective Assignee Participant or Subparticipant agrees to be bound by this
Paragraph 7.13; or (h) otherwise with the prior consent of Lessee; provided,
however, that any disclosure made in violation of this Agreement shall not
affect the obligations of Lessee and its Subsidiaries under this Agreement and
the other Operative Documents.

                       [The first signature page follows.]


                                       52
   53
      IN WITNESS WHEREOF, Lessee, Lessor, the Participants and Agent have caused
this Agreement to be executed as of the day and year first above written.



LESSEE:                                KLA-TENCOR CORPORATION



                                       By:______________________________________

                                          Name:_________________________________

                                          Title:________________________________


LESSOR:                                LEASE PLAN U.S.A., INC.



                                       By:______________________________________

                                          Name:_________________________________

                                          Title:________________________________


AGENT:                                 ABN AMRO BANK N.V.



                                       By:______________________________________

                                          Name:_________________________________

                                          Title:________________________________


                                       By:______________________________________

                                          Name:_________________________________

                                          Title:________________________________



CO-AGENT:                              BANQUE NATIONALE DE PARIS



                                       By:______________________________________

                                          Name:_________________________________

                                          Title:________________________________


PARTICIPANTS:                          ABN AMRO BANK N.V.



                                       By:______________________________________

                                          Name:_________________________________

                                          Title:________________________________



                                       By:______________________________________

                                          Name:_________________________________

                                          Title:________________________________


                                       53
   54
                                       BANQUE NATIONALE DE PARIS



                                       By:______________________________________

                                          Name:_________________________________

                                          Title:________________________________


                                       KEY BANK NATIONAL ASSOCIATION



                                       By:______________________________________

                                          Name:_________________________________

                                          Title:________________________________


                                       BANK BOSTON N.A.



                                       By:______________________________________

                                          Name:_________________________________

                                          Title:________________________________


                                       THE BANK OF NEW YORK



                                       By:______________________________________

                                          Name:_________________________________

                                          Title:________________________________




                                       THE INDUSTRIAL BANK OF JAPAN,
                                                 LIMITED SAN FRANCISCO AGENCY



                                       By:______________________________________

                                          Name:_________________________________

                                          Title:________________________________


                                       THE SANWA BANK, LIMITED
                                                 SAN FRANCISCO BRANCH



                                       By:______________________________________

                                          Name:_________________________________

                                          Title:________________________________


                                       54
   55
                                       THE BANK OF NOVA SCOTIA



                                       By:______________________________________

                                          Name:_________________________________

                                          Title:________________________________


                                       THE SUMITOMO TRUST & BANKING CO.,
                                                 LTD., LOS ANGELES AGENCY


                                       By:______________________________________

                                          Name:_________________________________

                                          Title:________________________________


                                       UNION BANK OF CALIFORNIA, N.A.



                                       By:______________________________________

                                          Name:_________________________________

                                          Title:________________________________


                                       55
   56
                                   SCHEDULE I

                                  PARTICIPANTS

             PART A - TRANCHE PERCENTAGES AND PROPORTIONATE SHARES




                                          Tranche A             Tranche B            Tranche C            Proportionate
   Participant                           Percentage            Percentage           Percentage                Share
   -----------                           ----------            ----------           ----------            -------------
                                                                                                        

ABN AMRO
Bank N.V                                 7.29896907%           1.12960236%          03.00000000%           11.42857143%

Banque Nationale
de Paris                                 9.15463918%           1.41678940%          00.00000000%           10.57142857%

Key Bank National
Association                              8.65979381%           1.34020619%          00.00000000%           10.00000000%

Bank Boston N.A                          8.41237113%           1.30191458%          00.00000000%            9.71428571%

The Bank of
New York                                 8.41237113%           1.30191458%          00.00000000%            9.71428571%

The Industrial
Bank of Japan, Ltd.,
San Francisco Agency                     8.41237113%           1.30191458%          00.00000000%            9.71428571%

The Sanwa Bank, Ltd.,
San Francisco Branch                     8.41237113%           1.30191458%          00.00000000%            9.71428571%

The Bank of
Nova Scotia                              8.41237113%           1.30191458%          00.00000000%            9.71428571%

The Sumitomo Trust &
Banking Co., Ltd.,
Los Angeles Agency                       8.41237113%           1.30191458%          00.00000000%            9.71428571%

Union Bank
of California, N.A                       8.41237113%           1.30191458%          00.00000000%            9.71428571%

TOTAL                                   84.00000000%          13.00000000%          03.00000000%          100.00000000%



                                       I-1
   57
                            PART B - ADDRESSES, ETC.


ABN AMRO BANK N.V.


Applicable Participating Office:

         ABN AMRO Bank N.V.
         San Francisco International Branch
         101 California Street, Suite 4550
         San Francisco, CA 94111


Address for Notices:

         ABN AMRO Bank N.V.
         San Francisco International Branch
         101 California Street, Suite 4550
         San Francisco, CA 94111
         Attention:          Bruce Swords
         Telephone:          (415) 984-3721
         Fax:                (415) 362-3524

         ABN AMRO North America, Inc.
         Capital Markets-Syndications Group
         1325 Avenue of the Americas, 9th Floor
         New York, NY 10019
         Attention:          Linda Boardman
         Telephone:          (212) 314-1724
         Fax:                (212) 314-1709


Wiring Instructions:

         ABN AMRO Bank N.V.
         New York, New York
         RT/ABA No.:         026009580
         Account Name:       ABN AMRO Bank N.V. - Chicago CPU
         Account No.:        650-001-1789-41
         Reference:          KLA-Tencor


                                       I-2
   58
BANQUE NATIONALE DE PARIS


Applicable Participating Office:

         Banque Nationale de Paris
         180 Montgomery Street
         San Francisco, CA  94104


Address for Notices:

         Banque Nationale de Paris
         180 Montgomery Street
         San Francisco, CA  94104
         Attention:          Rafael Lumanian, Vice President
         Telephone:          (415) 956-0707
         Fax No:             (415) 296-8954


Wiring Instructions:

         Federal Reserve Bank of San Francisco
         Banque Nationale de Paris, San Francisco Branch
         ABA Number:         121027234
         Reference:          KLA-TENCOR LEASE


                                       I-3
   59
KEY BANK NATIONAL ASSOCIATION


Applicable Participating Office:

         Key Bank National Association
         700 Fifth Avenue
         Seattle, WA  98104


Address for Notices:

         Key Bank National Association
         700 Fifth Avenue, 46th Floor
         Seattle, WA  98104
         Attention:          Kevin McBride
         Telephone:          (206) 684-6079
         Fax No:             (206) 684-6035


Wiring Instructions:

         Key Bank National Association
         Seattle, Washington
         ABA No:             125-000-578
         For Further Credit to: NW Region Specialty Services
         Account No:         01500163
         Reference:          KLA-Tencor


                                       I-4
   60
BANK BOSTON N.A.


Applicable Participating Office:

         Bank Boston N.A.
         435 Tasso Street
         Palo Alto, CA  94301


Address for Notices:

         Bank Boston N.A.
         435 Tasso Street, Suite 250
         Palo Alto, CA  94301
         Attention:          Maia D. Heymann, Vice President
         Telephone:          (650) 853-0770
         Fax No:             (650) 853-1425


Wiring Instructions:

         Bank Boston N.A.
         Boston, MA
         ABA No:             011-000-390
         Account No:         540-99647
         Reference:          KLA-Tencor


                                       I-5
   61
THE BANK OF NEW YORK


Participating Office:

         The Bank of New York
         10990 Wilshire Boulevard, Suite 1125
         Los Angeles, CA  90024


Address for Notices:

         The Bank of New York
         10990 Wilshire Boulevard, Suite 1125
         Los Angeles, CA  90024
         Attention:          Elizabeth T. Ying
         Telephone:          (310) 996-8661
         Fax No:             (310) 996-8667

         The Bank of New York
         One Wall Street, 15th Floor
         New York, NY  10286
         Attention:          Susan Seibel
         Telephone:          (212) 635-7944
         Fax No:             (212) 635-1698


Wiring Instructions:

         The Bank of New York
         One Wall Street, 22nd Floor
         New York, NY  10286
         Attention:          Sandra Morgan
         ABA No:             021-000-018
         Account No:         GLA111556
         Reference:          KLA-Tencor


                                       I-6
   62
THE INDUSTRIAL BANK OF JAPAN, LIMITED


Participating Office:

         The Industrial Bank of Japan, Limited
         San Francisco Agency
         555 California Street
         San Francisco, CA  94104


Address for Notices:

         The Industrial Bank of Japan, Limited
         San Francisco Agency
         555 California Street, Suite 3110
         San Francisco, CA  94104
         Attention:          Debbie Rajkumar
         Telephone:          (415) 693-1830
         Fax No:             (415) 982-1917


Wiring Instructions:

         Bank of America NT & SA
         International Deposit Services 6561
         1850 Gateway Boulevard
         Concord, CA  94520
         ABA No:             121-000-358
         Account:            The Industrial Bank of Japan, Limited
                             Los Angeles Agency
         Account No:         62906-14014
                             For Credit to IBJ SFA, A/C 2601-22011


                                       I-7
   63
THE SANWA BANK, LIMITED


Participating Office:

         The Sanwa Bank, Limited
         San Francisco Branch
         444 Market Street
         San Francisco, CA  94111


Address for Notices:

         The Sanwa Bank, Limited
         San Francisco Branch
         444 Market Street, 18th Floor
         San Francisco, CA  94111
         Attention:          Terrence J. Mech
         Telephone No:       (415) 597-5222
         Fax No:             (415) 788-5459


Wiring Instructions:

         Bank of America
         San Francisco, CA
         ABA No:             1210-00358
         Account No:         6290112268


                                       I-8
   64
THE BANK OF NOVA SCOTIA


Participating Office:

         The Bank of Nova Scotia
         580 California Street
         San Francisco, CA  94104


Address for Notices:

         The Bank of Nova Scotia
         580 California Street, Suite 2100
         San Francisco, CA  94104
         Attention:          Christopher Osborn
         Telephone:          (415) 986-1100
         Fax No:             (415) 397-0791


Wiring Instructions:

         The Bank of Nova Scotia
         New York Agency
         ABA No:             026 002 532
         For Credit A/C #    06101-35-BNS
                             San Francisco Loan Service
         Reference:          KLA-Tencor


                                       I-9
   65
THE SUMITOMO TRUST & BANKING CO., LIMITED


Participating Office:

         The Sumitomo Trust & Banking Co., Ltd.
         Los Angeles Agency
         333 South Grand Avenue, Suite 5300
         Los Angeles, CA  90071


Address for Notices:

         The Sumitomo Trust & Banking Co., Ltd.
         Los Angeles Agency
         333 South Grand Avenue, Suite 5300
         Los Angeles, CA  90071
         Attention:          Ninoos Benjamin
         Telephone:          (213) 229-2104
         Fax No:             (213) 613-1083


Copy to:

         Credit Administration Department
         Telephone:          (213) 629-3191
         Fax No:             (213) 628-2719


Wiring Instructions:

         Bank of America
         San Francisco, California
         ABA No:             121 000 358
         Account No:         62907-31117


                                      I-10
   66
UNION BANK OF CALIFORNIA, N.A.


Participating Office:

         Union Bank of California, N.A.
         350 California Street, 6th Floor
         San Francisco, CA  94104


Address for Notices:

         Union Bank of California, N.A.
         350 California Street, 6th Floor
         San Francisco, CA  94104
         Attention:          Glenn Leyrer
         Telephone:          (415) 705-7578
         Fax No:             (415) 705-5093


Wiring Instructions:

         Union Bank of California, N.A.
         Monterey Park, CA
         ABA No:             122-000-496
         Account No:         070196431
         Attention:          192 Note Center
         Reference:          KLA-Tencor


                                      I-11
   67
                                   SCHEDULE II

                                  PRICING GRID

                             (For LIBOR Rental Rate)



        SENIOR
        FUNDED
     INDEBTEDNESS/                    PRICING              APPLICABLE MARGIN
        CAPITAL                        PERIOD                    FOR
         RATIO                         LEVEL               LIBOR RENTAL RATE
     -------------                    -------              -----------------
                                                         

less than or equal to 0.225               1                      0.4200%

greater than 0.225
less than 0.300                           2                      0.5000%

greater than or equal to 0.300            3                      0.7250%



                                   EXPLANATION

1.    The Applicable Margin with respect to the LIBOR Rental Rate will be set
      for each Pricing Period and will vary depending upon whether such period
      is a Level 1 Period, a Level 2 Period, or a Level 3 Period.

2.    The first Pricing Period, which commences on the date of this Agreement
      and ends on December 31, 1997, will be a Level 1 Period.

3.    The second pricing period, which commences on January 1, 1998 and ends on
      March 31, 1998, will be a Level 1 Period, a Level 2 Period, or a Level 3
      Period depending upon Lessee's Senior Funded Indebtedness/Capital Ratio on
      September 30, 1997.

3.    Each Pricing Period thereafter will be a Level 1 Period, a Level 2 Period,
      or a Level 3 Period depending upon Lessee's Senior Funded
      Indebtedness/Capital Ratio on the last day of the most recent fiscal
      quarter ending prior to the first day of such Pricing Period.

4.    Examples:

            (a)   Lessee's Senior Funded Indebtedness/Capital Ratio is 0.12 on
      September 30, 1997. The Pricing Period of January 1, 1998 through March
      31, 1998 will be a Level 1 Period.

            (b)   Lessee's Senior Funded Indebtedness/Capital Ratio is 0.32 on
      December 31, 1997. The Pricing Period of April 1, 1998 through June 30,
      1998 will be a Level 3 Period.


                                      II-1
   68
                                  SCHEDULE 1.O1

                                   DEFINITIONS


      "ABN AMRO" shall mean ABN AMRO Bank N.V.

      "Acquisition Advances" shall have the meaning given to that term in
Subparagraph 2.01(b) of the Participation Agreement.

      "Acquisition Agreement" shall mean:

            (a)   With respect to the Tract 2 Land and Improvements, the
      Purchase Agreement dated as of August 10, 1995 between Lessee and BNP
      Leasing Corporation;

            (b)   With respect to the Tract 3 Improvements, the Purchase
      Agreement dated as of June 5, 1995 between Lessee and BNP Leasing
      Corporation; and

            (c)   With respect to the Tract 4 Land and Improvements, the Option
      Agreement dated as of July 26, 1995 between Lessee and Amdahl Corporation.

      "Acquisition Date" shall mean the date on which Lessor acquires any Tract
of Property or pays any Phase II Termination Payment pursuant to the
Participation Agreement.

      "Acquisition Price" shall mean, with respect to each Tract of Property,
the total purchase price payable by Lessor for such property on the Acquisition
Date therefor.

      "Acquisition Request" shall have the meaning given to that term in
Subparagraph 2.03(a) of the Participation Agreement.

      "Adjusted Net Income" shall mean, with respect to Lessee for any period,
the sum, determined on a consolidated basis in accordance with GAAP, of the
following:

            (a)   The net income or net loss of Lessee and its Subsidiaries for
      such period before provision for income taxes;

                                      plus

            (b)   The sum (to the extent deducted in calculating net income or
      loss in clause (a) above) of (i) all interest expenses of Lessee and its
      Subsidiaries accruing during such period, and (ii) all depreciation and
      amortization expenses of Lessee and its Subsidiaries accruing during such
      period;

                                      plus

            (c)   The sum (to the extent deducted in calculating net income or
      loss in clause (a) above) of all non-recurring charges taken by Lessee and
      its Subsidiaries during such period in connection with the acquisition of
      in-process technology;


                                     1.01-1
   69
                                      minus

            (d)   All Capital Expenditures of Lessee and its Subsidiaries
      accruing during such period;

Provided, however, that, in calculating the Adjusted Net Income of Lessee for
any period, all extraordinary and unusual gains and losses having no cash impact
shall be ignored (subject to any necessary adjustments for any tax impact).

      "Advances" shall have the meaning given to that term in Subparagraph
2.01(b) of the Participation Agreement.

      "Advance Requests" shall have the meaning given to that term in
Subparagraph 2.03(c) of the Participation Agreement.

      "Affiliate" shall mean, with respect to any Person, (a) each Person that,
directly or indirectly, owns or controls, whether beneficially or as a trustee,
guardian or other fiduciary, five percent (5%) or more of any class of Equity
Securities of such Person, (b) each Person that controls, is controlled by or is
under common control with such Person or any Affiliate of such Person or (c)
each of such Person's officers, directors, joint venturers and partners;
provided, however, that in no case shall Lessor, Agent or any Participant be
deemed to be an Affiliate of Lessee or any of its Subsidiaries for purposes of
the Operative Documents. For the purpose of this definition, "control" of a
Person shall mean the possession, directly or indirectly, of the power to direct
or cause the direction of its management or policies, whether through the
ownership of voting securities, by contract or otherwise.

      "Agent" shall mean ABN AMRO, acting in its capacity as Agent for the
Participants under the Operative Documents.

      "Agent's Fee Letter" shall mean the letter agreement dated as of November
6, 1997 between Lessee and Agent.

      "Agent's Fees" shall have the meaning given to that term in Subparagraph
2.04(a) of the Participation Agreement.

      "Alternate Rental Rate" shall mean, for any Rental Period (or portion
thereof), the per annum rate equal to the Base Rate in effect from time to time
during such period plus the Applicable Margin, such rate to change from time
during such period as the Base Rate or Applicable Margin shall change.

      "Applicable Margin" shall mean:

            (a)   With respect to the LIBOR Rental Rate, the per annum margin
      determined pursuant to the Pricing Grid and added to the LIBO Rate; or

            (b)   With respect to the Alternate Rental Rate, Zero percent (0%)
      per annum;


                                     1.01-2
   70
Provided, however, that each Applicable Margin set forth in subparagraphs (a)
and (b) of this definition shall be increased by two percent (2.0%) per annum on
the date an Event of Default occurs and shall continue at such increased rate
while any Event of Default continues.

      "Applicable Participating Office" shall mean, with respect to any
Participant, (a) initially, its office designated as such in Part B of Schedule
I (or, in the case of any Participant which becomes a Participant by an
assignment pursuant to Subparagraph 7.05(b) of the Participation Agreement, its
office designated as such in the applicable Assignment Agreement) and (b)
subsequently, such other office or offices as such Participant may designate to
Agent as the office at which such Participant's interest in the Lease Agreement
will thereafter be maintained and for the account of which all payments of Rent
and other amounts payable to such Participant under the Operative Documents will
thereafter be made.

      "Appraisal" shall mean an appraisal of any Tract of the Property or a
portion thereof in a form satisfactory to Lessor, Agent and the Required
Participants, prepared by an independent MAI appraiser that (a) complies with
the Financial Institutions Reform, Recovery and Enforcement Act of 1989 and all
other applicable Governmental Rules and (b) is approved by Lessor, Agent and the
Required Participants (at the time such appraiser is selected).

      "Appurtenant Rights" shall mean all easements and rights-of-way, strips
and gores of land, streets, ways, alleys, passages, sewer rights, water, water
courses, water rights and powers, air rights and development rights, liberties,
tenements, hereditaments and appurtenances of any nature whatsoever, in any way
belonging, relating or pertaining to any Land or the Improvements thereto and
the reversions, remainders, and all the estates, rights, titles, interests,
property, possession, claim and demand whatsoever, both in law and in equity,
of, in and to such Land and Improvements and every part and parcel thereof, with
the appurtenances thereto.

      "Assignee Participant" shall have the meaning given to that term in
Subparagraph 7.05(b) of the Participation Agreement.

      "Assignee Purchaser" shall have the meaning given to that term in
Subparagraph 5.03(b)of the Purchase Agreement.

      "Assignment" shall have the meaning given to that term in Subparagraph
7.05(b) of the Participation Agreement.

      "Assignment Agreement" shall have the meaning given to that term in
Subparagraph 7.05(b) of the Participation Agreement.

      "Assignment Effective Date" shall have, with respect to each Assignment
Agreement, the meaning set forth therein.

      "Assignment of Construction Agreements" shall have the meaning given to
that term in Subparagraph 2.11(a) of the Participation Agreement.

      "Assignment of Lease" shall have the meaning given to that term in
Subparagraph 2.11(b) of the Participation Agreement.


                                     1.01-3
   71
      "Assignor Participant" shall have the meaning given to that term in
Subparagraph 7.05(b) of the Participation Agreement.

      "Assumed Appraisal" shall have the meaning given to that term in
Subparagraph 3.02(h) of the Purchase Agreement.

      "Base Rate" shall mean, on any day, the greater of (a) the Prime Rate in
effect on such date and (b) the Federal Funds Rate for such day plus one-half
percent (0.50%).

      "Base Rent" shall have the meaning given to that term in Subparagraph
2.03(a) of the Lease Agreement.

      "Business Day" shall mean any day on which (a) commercial banks are not
authorized or required to close in San Francisco, California or New York, New
York and (b) if such Business Day is related to a LIBOR Rental Rate, dealings in
Dollar deposits are carried out in the London interbank market.

      "Capital Adequacy Requirement" shall have the meaning given to that term
in Subparagraph 2.12(d) of the Participation Agreement.

      "Capital Asset" shall mean, with respect to any Person, any tangible fixed
or capital asset owned or leased (in the case of a Capital Lease) by such
Person, or any expense incurred by such Person that is required by GAAP to be
reported as a non-current asset on such Person's balance sheet.

      "Capital Expenditures" shall mean, with respect to any Person and any
period, all expenses accrued by such Person during such period for the
acquisition of Capital Assets (including all indebtedness incurred or assumed in
connection with Capital Leases).

      "Capital Leases" shall mean any and all lease obligations that, in
accordance with GAAP, are required to be capitalized on the books of a lessee.

      "Cash Collateral" shall mean cash held or maintained by Agent in a deposit
account to the extent such cash and account are held and maintained in
accordance with the Cash Collateral Agreement and Lessor has a first priority
perfected security interest therein securing the Lessee Obligations.

      "Cash Collateral Agreement" shall have the meaning given to that term in
Subparagraph 2.11(a) of the Participation Agreement.

      "Cash Equivalents" shall mean:

            (a)   Direct obligations of, or obligations the principal and
      interest on which are unconditionally guaranteed by, the United States of
      America or obligations of any agency of the United States of America to
      the extent such obligations are backed by the full faith and credit of the
      United States of America, in each case maturing within one year from the
      date of acquisition thereof;


                                     1.01-4
   72
            (b)   Certificates of deposit maturing within one year from the date
      of acquisition thereof issued by a commercial bank or trust company
      organized under the laws of the United States of America or a state
      thereof or that is a Participant, provided that (A) such deposits are
      denominated in Dollars, (B) such bank or trust company has capital,
      surplus and undivided profits of not less than $100,000,000 and (C) such
      bank or trust company has certificates of deposit or other debt
      obligations rated at least A-1 (or its equivalent) by Standard and Poor's
      Ratings Group or P-1 (or its equivalent) by Moody's Investors Service,
      Inc.;

            (c)   Open market commercial paper maturing within 270 days from the
      date of acquisition thereof issued by a corporation organized under the
      laws of the United States of America or a state thereof, provided such
      commercial paper is rated at least A-1 (or its equivalent) by Standard and
      Poor's Ratings Group or P-1 (or its equivalent) by Moody's Investors
      Service, Inc.; and

            (d)   Any repurchase agreement entered into with a commercial bank
      or trust company organized under the laws of the United States of America
      or a state thereof or that is a Participant, provided that (A) such bank
      or trust company has capital, surplus and undivided profits of not less
      than $100,000,000, (B) such bank or trust company has certificates of
      deposit or other debt obligations rated at least A-1 (or its equivalent)
      by Standard and Poor's Ratings Group or P-1 (or its equivalent) by Moody's
      Investors Service, Inc., (C) the repurchase obligations of such bank or
      trust company under such repurchase agreement are fully secured by a
      perfected security interest in a security or instrument of the type
      described in clause (a), (b) or (c) above and (D) such security or
      instrument so securing the repurchase obligations has a fair market value
      at the time such repurchase agreement is entered into of not less than
      100% of such repurchase obligations.

      "Casualty" shall mean any damage to, destruction of or decrease in the
value of all or any portion of any of the Property as a result of fire, flood,
earthquake or other natural cause; the actions or inactions of any Person or
Persons (whether willful or unintentional and whether or not constituting
negligence); or any other cause.

      "Casualty and Condemnation Proceeds" shall mean all awards, damages,
compensation, reimbursement and other payments made or to be made to Lessee,
Lessor or Agent from any insurer, Governmental Authority or other Person (other
than Lessee or any Lessor Party) on account of any Casualty or Condemnation.

      "Change of Control" shall mean, with respect to Lessee, (a) the
acquisition by any person or group of persons (within the meaning of Section 13
or 14 of the Securities Exchange Act of 1934 (as amended, the "Exchange Act"))
of (i) beneficial ownership (within the meaning of Rule 13d-3 promulgated by the
Securities and Exchange Commission under the Exchange Act) of thirty-five
percent (35%) or more of the outstanding Equity Securities of Lessee entitled to
vote for members of the board of directors, or (ii) all or substantially all of
the assets of Lessee and its Subsidiaries taken as a whole; or (b) during any
period of twelve (12) consecutive calendar months, individuals who are directors
of Lessee on the first day of such period ("Initial Directors") and any
directors of Lessee who are specifically approved by two-thirds of the Initial


                                     1.01-5
   73
Directors and previously-approved Directors shall cease to constitute a majority
of the Board of Directors of Lessee before the end of such period.

      "Change of Law" shall have the meaning given to that term in Subparagraph
2.12(b) of the Participation Agreement.

      "Closing Date" shall have the meaning given to that term in Subparagraph
2.01(a) of the Participation Agreement.

      "Closing Date Appraisal" shall mean, with respect to any Tract of Property
(or any portion thereof) on or as of a recent date prior to the Closing Date, an
Appraisal that assesses at such time the Fair Market Value of such Tract of
Property (or such portion) on such date, as improved with any Existing
Improvements.

      "Co-Agent" shall mean Banque Nationale de Paris.

      "Collateral" shall mean the Property Collateral, the Cash Collateral and
all other property in which any Lessor Party has a Lien to secure any of the
Lessee Obligations.

      "Commencement Date" shall have the meaning given to that term in
Subparagraph 2.02(a) of the Lease Agreement.

      "Commitment" shall mean, with respect to any Participant at any time, such
Participant's Proportionate Share of the Total Commitment at such time.

      "Commitment Extension Fee" shall have the meaning given to that term in
Subparagraph 2.04(c) of the Participation Agreement.

      "Commitment Extension Request" shall have the meaning given to that term
in Subparagraph 2.09(a) of the Participation Agreement.

      "Commitment Fees" shall have the meaning given to that term in
Subparagraph 2.04(b) of the Participation Agreement.

      "Commitment Period" shall have the meaning given to that term in
Subparagraph 2.01(a) of the Participation Agreement.

      "Commitment Termination Date" shall have the meaning given to that term in
Subparagraph 2.01(a) of the Participation Agreement.

      "Completion" shall have the meaning given to that term in Subparagraph
3.05(b) of the Construction Agency Agreement. "Completed" and "Completion" shall
have comparable meanings.

      "Completion Date" shall mean the first date on which all of the conditions
set forth in Subparagraph 3.05(c) of the Construction Agency Agreement are
satisfied.


                                     1.01-6
   74
      "Compliance Certificate" shall have the meaning given to that term in
Subparagraph 5.01(a) of the Participation Agreement.

      "Condemnation" shall mean any condemnation, requisition, confiscation,
seizure or other taking or sale of the use, access, occupancy or other right in
or to all or any portion of any of the Property (whether wholly or partially,
temporarily or permanently), by or on account of any actual or threatened
eminent domain proceeding or other taking of action by any Governmental
Authority or other Person having the power of eminent domain, including an
action by any such Governmental Authority or Person to change the grade of, or
widen the streets adjacent to, such Property or alter the pedestrian or
vehicular traffic flow to such Property so as to result in change in access to
such Property, or by or on account of an eviction by paramount title or any
transfer made in lieu of any such proceeding or action. A "Condemnation" shall
be deemed to have occurred on the earliest of the dates that use, access,
occupancy or other right is taken.

      "Conforming Bid" shall have the meaning given to that term in Subparagraph
3.02(c) of the Purchase Agreement.

      "Construction Agency Agreement" shall have the meaning given to that term
in Subparagraph 2.01(a) of the Participation Agreement.

      "Construction Agreements" shall have the meaning given to that term in
Paragraph 3.02 of the Construction Agency Agreements.

      "Contingent Obligation" shall mean, with respect to any Person, (a) any
Guaranty Obligation of that Person; and (b) any direct or indirect obligation or
liability, contingent or otherwise, of that Person (i) in respect of any Surety
Instrument issued for the account of that Person or as to which that Person is
otherwise liable for reimbursement of drawings or payments, (ii) as a partner or
joint venturer in any partnership or joint venture, (iii) to purchase any
materials, supplies or other property from, or to obtain the services of,
another Person if the relevant contract or other related document or obligation
requires that payment for such materials, supplies or other property, or for
such services, shall be made regardless of whether delivery of such materials,
supplies or other property is ever made or tendered, or such services are ever
performed or tendered, or (iv) in respect to any Rate Contract that is not
entered into in connection with a bona fide hedging operation that provides
offsetting benefits to such Person. The amount of any Contingent Obligation
shall (subject, in the case of Guaranty Obligations, to the last sentence of the
definition of "Guaranty Obligation") be deemed equal to the maximum reasonably
anticipated liability in respect thereof, and shall with respect to item (b)(iv)
of this definition be marked to market on a current basis.

      "Contractual Obligation" of any Person shall mean, any indenture, note,
lease, loan agreement, security, deed of trust, mortgage, security agreement,
guaranty, instrument; contract, agreement or other form of contractual
obligation or undertaking to which such Person is a party or by which such
Person or any of its property is bound.

      "Credit Event" shall mean the making of each Advance or the exercise of
the Partial Purchase Option or Marketing Option under the Purchase Agreement.


                                     1.01-7
   75
      "Current Appraisal" shall have the meaning given to that term in
Subparagraph 3.02(h) of the Purchase Agreement.

      "Debt Service Coverage Ratio" shall mean, with respect to Lessee for any
period, the ratio, determined on a consolidated basis in accordance with GAAP,
of:

            (a)   The Adjusted Net Income of Lessee for such period;

                                       to

            (b)   The sum of (i) all interest expenses of Lessee and its
      Subsidiaries accruing during such period and (ii) the current maturities
      of all long-term debt (or, in the case of Capital Leases, amounts
      attributable to principal).

      "Default" shall mean any Event of Default under the Lease Agreement or any
event or circumstance not yet constituting an Event of Default under the Lease
Agreement which, with the giving of any notice or the lapse of any period of
time or both, would become an Event of Default under the Lease Agreement.

      "Defaulting Participant" shall mean a Participant which has failed to fund
its portion of any Advance which it is required to fund under the Participation
Agreement and has continued in such failure for three (3) Business Days after
written notice from Agent.

      "Designated Purchaser" shall have the meaning given to that term in
Subparagraph 3.02(e) of the Purchase Agreement.

      "Dollars" and "$" shall mean the lawful currency of the United States of
America and, in relation to any payment under the Operative Documents, same day
or immediately available funds.

      "Eligible Assignee" shall mean (a) a commercial bank organized under the
laws of the United States, or any state thereof, and having a combined capital
and surplus of at least $500,000,000; (b) a commercial bank organized under the
laws of any other country which is a member of the Organization for Economic
Cooperation and Development (the "OECD"), or a political subdivision of any such
country, and having a combined capital and surplus of at least $500,000,000,
provided that such bank is acting through a branch or agency located in the
United States; or (c) a Person that is primarily engaged in the business of
commercial banking and that is (i) a Subsidiary of a Participant, (ii) a
Subsidiary of a Person of which a Participant is a Subsidiary, or (iii) a Person
of which a Participant is a Subsidiary.

      "Employee Benefit Plan" shall mean any employee benefit plan within the
meaning of section 3(3) of ERISA maintained or contributed to by Lessee or any
ERISA Affiliate, other than a Multiemployer Plan.

      "Environmental Laws" shall mean the Clean Air Act, 42 U.S.C. Section 7401
et seq.; the Federal Water Pollution Control Act, 33 U.S.C. Section 1251 et
seq.; the Resource Conservation and Recovery Act of 1976, 42 U.S.C. Section 6901
et seq.; the Comprehensive Environment Response, Compensation and Liability Act
of 1980 (including the Superfund Amendments and 


                                     1.01-8
   76
Reauthorization Act of 1986, "CERCLA"), 42 U.S.C. Section 9601 et seq.; the
Toxic Substances Control Act, 15 U.S.C. Section 2601 et seq.; the Occupational
Safety and Health Act, 29 U.S.C. Section 651; the Emergency Planning and
Community Right-to-Know Act of 1986, 42 U.S.C. Section 11001 et seq.; the Mine
Safety and Health Act of 1977, 30 U.S.C. Section 801 et seq.; the Safe Drinking
Water Act, 42 U.S.C. Section 300f et seq.; and all other Governmental Rules
relating to the protection of human health and the environment, including all
Governmental Rules pertaining to reporting, licensing, permitting,
transportation, storage, disposal, investigation, and remediation of emissions,
discharges, releases, or threatened releases of Hazardous Materials into the
air, surface water, groundwater, or land, or relating to the manufacture,
processing, distribution, use, treatment, storage, disposal, transport, or
handling of Hazardous Materials.

      "Equity Securities" of any Person shall mean (a) all common stock,
preferred stock, participations, shares, partnership interests or other equity
interests in and of such Person (regardless of how designated and whether or not
voting or non-voting) and (b) all warrants, options and other rights to acquire
any of the foregoing.

      "ERISA" shall mean the Employee Retirement Income Security Act of 1974, as
the same may from time to time be amended or supplemented, including any rules
or regulations issued in connection therewith.

      "ERISA Affiliate" shall mean any Person which is treated as a single
employer with Lessee under Section 414 of the IRC.

      "Event of Default" shall have the meaning given to that term in Paragraph
5.01 of the Lease Agreement.

      "Executive Officer" shall mean any officer of Lessee designated by
Lessee's Board of Directors as a "reporting officer" under Section 16 of the
Securities Exchange Act of 1934.

      "Exhibit B Supplement" shall have the meaning given to that term in
Subparagraph 2.03(b) of the Participation Agreement.

      "Existing Improvements" shall mean (a) with respect to a particular Tract
of Land, all Improvements existing on such Land on the Acquisition Date therefor
and (b) with respect to all the Land, all such Improvements. Each reference to
"Existing Improvements" shall refer collectively to Existing Improvements with
respect to all the Land unless such reference specifically indicates that it
applies to a particular Tract.

      "Expiration Date" shall mean the earlier of (a) the Scheduled Expiration
Date under the Lease Agreement, as such date may be extended pursuant to this
Agreement, and (b) the Termination Date for the Lease Agreement, if the Lease
Agreement is terminated prior to its Scheduled Expiration Date in accordance
with its terms.

      "Expiration Date Appraisal" shall mean, with respect to any Tract of
Property (or any portion thereof) at any time, an Appraisal that assesses at
such time the Fair Market Value of such Tract of Property (or such portion) on
the Scheduled Expiration Date and as improved in 


                                     1.01-9
   77
accordance with the Plans and Specifications for all New Improvements, if any,
to be made to such Tract of Property (or such Portion).

      "Expiration Date Purchase Option" shall have the meaning given to that
term in Subparagraph 3.01(b) of the Purchase Agreement.

      "Fair Market Value" shall mean, with respect to any of the Property or any
portion thereof, the maximum reasonable amount (not less than zero) that would
be paid in cash in an arm's-length transaction between an informed and willing
purchaser and an informed and willing seller, neither of whom is under any
compulsion to purchase or sell, for the ownership of the Property or such
portion.

      "FASB 13" shall mean Financial Accounting Standards Board Statement No.
13.

      "Federal Funds Rate" shall mean, for any day, the rate per annum set forth
in the weekly statistical release designated as H.15(519), or any successor
publication, published by the Federal Reserve Board (including any such
successor publication, "H.15 (519)") for such day opposite the caption "Federal
Funds (Effective)". If on any relevant day, such rate is not yet published in
H.15 (519), the rate for such day shall be the rate set forth in the daily
statistical release designated as the Composite 3:30 p.m. Quotations for U.S.
Government Securities, or any successor publication, published by the Federal
Reserve Bank of New York (including any such successor publication, the
"Composite 3:30 p.m. Quotations") for such day under the caption "Federal Funds
Effective Rate". If on any relevant day, such rate is not yet published in
either H.15 (519) or the Composite 3:30 p.m. Quotations, the rate for such day
shall be the arithmetic means, as determined by Agent, of the rates quoted to
Agent for such day by three (3) Federal funds brokers of recognized standing
selected by Agent.

      "Federal Reserve Board" shall mean the Board of Governors of the Federal
Reserve System.

      "Financial Statements" shall mean, with respect to any accounting period
for any Person, statements of income, shareholders' equity and cash flows of
such Person for such period, and a balance sheet of such Person as of the end of
such period, setting forth in each case in comparative form figures for the
corresponding period in the preceding fiscal year if such period is less than a
full fiscal year or, if such period is a full fiscal year, corresponding figures
from the preceding annual audit, all prepared in reasonable detail and in
accordance with GAAP.

      "Funded Indebtedness" of any Person shall mean, without duplication:

            (a)   All obligations of such Person evidenced by notes, bonds,
      debentures or other similar instruments and all other obligations of such
      Person for borrowed money (including the then outstanding face amount of
      "pre-acceptance" accounts receivable sold by KLA-Tencor Japan, Ltd. with
      recourse);

            (b)   All obligations of such Person for the deferred purchase price
      of property or services (including obligations under letters of credit and
      other credit facilities which secure or finance such purchase price and
      obligations under "synthetic" leases), other


                                    1.01-10
   78
      than trade payables incurred by such Person in the ordinary course of its
      business on ordinary terms and not overdue;

            (c)   All obligations of such Person under conditional sale or other
      title retention agreements with respect to property acquired by such
      Person (to the extent of the value of such property if the rights and
      remedies of the seller or lender under such agreement in the event of
      default are limited solely to repossession or sale of such property); and

            (d)   All obligations of such Person as lessee under or with respect
      to Capital Leases.

      "GAAP" shall mean generally accepted accounting principles and practices
as in effect in the United States of America from time to time, consistently
applied.

      "Governmental Authority" shall mean any domestic or foreign national,
state or local government, any political subdivision thereof, any department,
agency, authority or bureau of any of the foregoing, or any other entity
exercising executive, legislative, judicial, regulatory or administrative
functions of or pertaining to government, including, without limitation, the
Federal Deposit Insurance Corporation, the Federal Reserve Board, the
Comptroller of the Currency, any central bank or any comparable authority.

      "Governmental Charges" shall mean taxes, levies, assessments, fees,
imposts, duties, licenses, recording charges, claims or other charges imposed by
any Governmental Authority.

      "Governmental Rule" shall mean any law, rule, regulation, ordinance,
order, code, interpretation, judgment, decree, directive, guidelines, policy or
similar form of decision of any Governmental Authority.

      "Guaranty Obligation" shall mean, with respect to any Person, any direct
or indirect liability of that Person with respect to any indebtedness, lease,
dividend, letter of credit or other obligation (the "primary obligations") of
another Person (the "primary obligor"), including any obligation of that Person,
whether or not contingent, (a) to purchase, repurchase or otherwise acquire such
primary obligations or any property constituting direct or indirect security
therefor, or (b) to advance or provide funds (i) for the payment or discharge of
any such primary obligation, or (ii) to maintain working capital or equity
capital of the primary obligor or otherwise to maintain the net worth or
solvency or any balance sheet item, level of income or financial condition of
the primary obligor, or (c) to purchase property, securities or services
primarily for the purpose of assuring the owner of any such primary obligation
of the ability of the primary obligor to make payment of such primary
obligation, or (d) otherwise to assure or hold harmless the holder of any such
primary obligation against loss in respect thereof. The amount of any Guaranty
Obligation shall be deemed equal to the stated or determinable amount of the
primary obligation in respect of which such Guaranty Obligation is made or, if
not stated or if indeterminable, the maximum reasonably anticipated liability in
respect thereof.

      "Hazardous Materials" shall mean all chemical substances, pollutants,
contaminants or hazardous or toxic substances, materials or wastes, whether
solid, liquid, or gaseous in nature, and all other materials, substances and
wastes which are classified or regulated as "hazardous," 


                                    1.01-11
   79
"toxic" or similar descriptions under any Environmental Law or which are
hazardous, toxic, harmful or dangerous to the environment or human health.

      "Improvement/Expense Advance Request" shall have the meaning given to that
term in Subparagraph 2.03(b) of the Participation Agreement.

      "Improvement/Expense Advances" shall have the meaning given to that term
in Subparagraph 2.01(a) of the Participation Agreement.

      "Improvements" shall mean all buildings, structures, facilities, fixtures
and other improvements of every kind and description now or hereafter located on
any of the Land, including (a) all parking areas, roads, driveways, walks,
fences, walls, drainage facilities and other site improvements; (b) all water,
sanitary and storm sewer, drainage, electricity, steam, gas, telephone and other
utility equipment and facilities, all plumbing, lighting, heating, ventilating,
air-conditioning, refrigerating, incinerating, compacting, fire protection and
sprinkler, surveillance and security, public address and communications
equipment and systems, partitions, elevators, escalators, motors, machinery,
pipes, fittings and other items of equipment of every kind and description now
or hereafter located on such Land or attached to the Improvements thereto which
by the nature of their location thereon or attachment thereto are real property
under applicable law; and (c) all Modifications to such Land or its
Improvements, except for any Modifications removed by Lessee from the Property
pursuant to Subparagraph 3.10 of the Lease Agreement.

      "Indebtedness" of any Person shall mean, without duplication:

            (a)   All obligations of such Person evidenced by notes, bonds,
      debentures or other similar instruments and all other obligations of such
      Person for borrowed money (including obligations to repurchase receivables
      and other assets sold with recourse);

            (b)   All obligations of such Person for the deferred purchase price
      of property or services (including obligations under letters of credit and
      other credit facilities which secure or finance such purchase price and
      obligations under "synthetic" leases);

            (c)   All obligations of such Person under conditional sale or other
      title retention agreements with respect to property acquired by such
      Person (to the extent of the value of such property if the rights and
      remedies of the seller or lender under such agreement in the event of
      default are limited solely to repossession or sale of such property);

            (d)   All obligations of such Person as lessee under or with respect
      to Capital Leases;

            (e)   All non-contingent payment or reimbursement obligations of
      such Person under or with respect to Surety Instruments;

            (f)   All net obligations of such Person, contingent or otherwise,
      under or with respect to Rate Contracts;


                                    1.01-12
   80
            (g)   All Guaranty Obligations of such Person with respect to the
      obligations of other Persons of the types described in clauses (a) - (f)
      above; and

            (h)   All obligations of other Persons of the types described in
      clauses (a) - (f) above to the extent secured by (or for which any holder
      of such obligations has an existing right, contingent or otherwise, to be
      secured by) any Lien in any property (including accounts and contract
      rights) of such Person, even though such Person has not assumed or become
      liable for the payment of such obligations.

      "Indemnified Taxes" shall mean all income taxes, stamp taxes, sales taxes,
use taxes, rental taxes, gross receipts taxes, property (tangible and
intangible) taxes, franchise taxes, excise taxes, value added taxes, turnover
taxes, withholding taxes and other taxes and Governmental Charges, together with
any and all assessments, penalties, fines, additions and interest thereon,
except:

            (a)   Net income taxes and franchise taxes in lieu of net income
      taxes imposed on any Lessor Party by:

                  (i)   Its jurisdiction of organization;

                  (ii)  A jurisdiction in which it maintains a lending office;
            or

                  (iii) Any other jurisdiction in which such Lessor Party is
            subject to such taxes by reason of an office or other property or
            the employees, agents or independent contractors of such Lessor
            Party in such jurisdiction the presence of which is not contemplated
            by the Operative Documents (except to the extent such taxes are
            imposed as a result of (A) the location, operation or use of any
            portion or component of the Property in such jurisdiction, (B) the
            location, presence, activities or place of business of Lessee, its
            Affiliates or any Person claiming by, through or under Lessee (a
            "Lessee Person") in such jurisdiction or (C) the making of any
            payments from such jurisdiction by or on behalf of a Lessee Person);

      Except, in each case, to the extent that such taxes exceed the amount of
      such taxes that would have been imposed had the transactions contemplated
      by the Participation Agreement been characterized as a loan (provided,
      however, that this exclusion shall not be construed to prevent a payment
      from being made on an after tax basis);

            (b)   Any tax or other Governmental Charge that has not become a
      Lien on any of the Property and that Lessee is contesting pursuant to
      Paragraph 3.12 of the Lease Agreement (but only while Lessee is so
      contesting such tax or Governmental Charge);

            (c)   Any tax or other Governmental Charge that is imposed upon an
      Indemnitee primarily as a result of the gross negligence or willful
      misconduct of such Indemnitee itself (as opposed to gross negligence or
      willful misconduct imputed to such Indemnitee), but not taxes or other
      Governmental Charges imposed as a result of ordinary negligence of such
      Indemnitee;


                                    1.01-13
   81
            (d)   Any tax or other Governmental Charge to the extent it relates
      to any act, event or omission that occurs with respect to the Property
      after the termination of the Lease Agreement, redelivery or sale of the
      Property in accordance with the terms of the Operative Documents and
      payment by Lessee of all amounts due under the Operative Documents, unless
      and to the extent such tax or Governmental Charge is attributable to
      actions, omissions or events occurring in connection with the exercise of
      remedies following an Event of Default; provided, that this exclusion
      shall not apply to taxes or Governmental Charges that are related to or
      arising from payments made under the Operative Documents, or events, acts
      or omissions occurring or matters arising prior to or simultaneous with
      the time set forth above; or

            (e)   Any tax which is a withholding tax if such tax is imposed in
      respect of payments to a Lessor Party that is required to deliver a United
      States Internal Revenue Service Form 1001 or 4224 if such form is not
      effective to entitle such Lessor Party to receive payment under the
      Operative Documents without deduction or withholding of United States
      federal income tax as a result of an act or omission of such Lessor Party.

      "Indemnitees" shall mean the Lessor Parties and their Affiliates and their
respective directors, officers, employees, agents, attorneys and advisors.

      "Indemnity Amount" shall have the meaning given to that term in
Subparagraph 3.02(g) of the Purchase Agreement.

      "Initial Acquisition Advances" shall have the meaning given to that term
in Subparagraph 2.03(a) of the Participation Agreement.

      "Initial Bid" shall have the meaning given to that term in Subparagraph
3.02(b) of the Purchase Agreement.

      "Initial Marketing Period" shall have the meaning given to that term in
Subparagraph 3.02(b) of the Purchase Agreement.

      "Initial Property" shall mean the Tract 1 Property, the Tract 2 Property,
the Tract 3 Property and the Tract 5 Property.

      "Insurance Requirements" shall mean all terms, conditions and requirements
imposed by the policies of insurance which Lessee is required to maintain by the
Operative Documents.

      "Investment" of any Person shall mean any loan or advance of funds by such
Person to any other Person (other than advances to employees of such Person for
moving and travel expenses, drawing accounts and similar expenditures in the
ordinary course of business), any purchase or other acquisition of any Equity
Securities or Indebtedness of any other Person, any capital contribution by such
Person to or any other investment by such Person in any other Person (including
any Guaranty Obligations of such Person and any Indebtedness of such Person of
the type described in clause (h) of the definition of "Indebtedness" on behalf
of any other Person); provided, however, that Investments shall not include (a)
accounts receivable or other indebtedness owed by customers of such Person which
are current assets and arose from sales of 


                                    1.01-14
   82
inventory in the ordinary course of such Person's business or (b) prepaid
expenses of such Person incurred and prepaid in the ordinary course of business.

      "IRC" shall mean the Internal Revenue Code of 1986.

      "Issues and Profits" shall mean all present and future rents, royalties,
issues, profits, receipts, revenues, income, earnings and other benefits
accruing from any of the Land, Improvements or Appurtenant Rights (whether in
the form of accounts, chattel paper, instruments, documents, investment
property, general intangibles or otherwise) including all rents and other
amounts payable pursuant to any Subleases.

      "Land" shall mean all lots, pieces, tracts or parcels of land described in
Exhibit A to the Lease Agreement and leased by Lessee pursuant to the Lease
Agreement.

      "Lease Agreement" shall have the meaning given to that term in
Subparagraph 2.01(a) of the Participation Agreement.

      "Lease Extension Request" shall have the meaning given to that term in
Subparagraph 2.09(b) of the Participation Agreement.

      "Lease Reduction Payments" shall mean each of the following to the extent
applied to reduce the Outstanding Lease Amount pursuant to the Operative
Documents:

            (a)   Casualty and Condemnation Proceeds;

            (b)   The purchase price paid for the Property (or any portion
      thereof) by Lessee, an Assignee Purchaser or a Designated Purchaser
      pursuant to the Purchase Agreement;

            (c)   The Residual Value Guaranty and Indemnity Amount paid by
      Lessee pursuant to the Purchase Agreement;

            (d)   Any proceeds received by Lessee from any sale of the Property
      after the Expiration Date if such Property is retained by Lessor after
      such Expiration Date pursuant to the applicable Purchase Agreement; and

            (e)   Any proceeds received by any Lessor Party from the exercise of
      any of its remedies under the Operative Documents after the occurrence of
      an Event of Default under the Lease Agreement.

      "Lessee" shall mean KLA-Tencor Corporation, acting in its capacity as
Lessee under the Operative Documents.

      "Lessee Obligations" shall mean and include all liabilities and
obligations owed by Lessee to any Lessor Party under any of the Operative
Documents of every kind and description and however arising (whether direct or
indirect, absolute or contingent, due or to become due, now existing or
hereafter arising), including the obligation of Lessee to pay Rent, to pay the
Residual Value Guaranty Amount, Indemnity Amount and/or Outstanding Lease Amount
and to 


                                    1.01-15
   83
pay all interest, fees, charges, expenses, attorneys' fees and accountants' fees
chargeable to Lessee or payable by Lessee under the Operative Documents.

      "Lessee Security Documents" shall mean and include the Lease Agreement,
the Cash Collateral Agreement, the Assignment of Construction Agreements and all
other instruments, agreements, certificates, opinions and documents (including
Uniform Commercial Code financing statements and fixture filings and landlord
waivers) delivered to any Lessor Party in connection with any Collateral or to
secure the Lessee Obligations.

      "Lessor" shall mean Lease Plan U.S.A., Inc., acting in its capacity as
Lessor under the Operative Documents.

      "Lessor Deed of Trust" shall have the meaning given to that term in
Subparagraph 2.11(b) of the Participation Agreement.

      "Lessor Liens" shall mean any Liens or other interests in any of the
Property of any Person other than Lessee or a Lessor Party arising as a result
of (a) any transfer or assignment by Lessor to such Person of any of Lessor's
interests in such Property in violation of any of the Operative Documents or (b)
any claim against Lessor by any such Person unrelated to any of the Operative
Documents or the transactions contemplated thereby. (Lessor Liens shall include
Liens granted by Lessor to Agent or any Participant to secure the Lessor
Obligations.)

      "Lessor Obligations" shall mean and include all liabilities and
obligations owed by Lessor to Agent or any Participant under any of the
Operative Documents of every kind and description and however arising (whether
direct or indirect, absolute or contingent, due or to become due, now existing
or hereafter arising), including the obligation of Lessor to share payments made
by Lessee to Lessor under the Operative Documents as provided in Paragraph 2.06
of the Participation Agreement.

      "Lessor Parties" shall mean Lessor, the Participants and Agent.

      "Lessor Security Agreement" shall have the meaning given to that term in
Subparagraph 2.11(b) of the Participation Agreement.

      "Liabilities" shall mean, with respect to Lessee at any time, the sum at
such time, determined on a consolidated basis in accordance with GAAP, of (a)
all liabilities of Lessee and its Subsidiaries that, in accordance with GAAP,
are reflected in the consolidated balance sheet of Lessee and its Subsidiaries
at such time, plus (b) the aggregate amount attributable to principal under all
"synthetic leases" of Lessee and its Subsidiaries, plus (c) the then outstanding
face amount of "pre-acceptance" accounts receivable sold by KLA- Tencor Japan,
Ltd. with recourse, plus (d) the face amount of all outstanding standby letters
of credit issued for the account of Lessor and its Subsidiaries, plus (e) any
direct or indirect obligation or liability of Lessor and its Subsidiaries as a
partner or joint venturer in any partnership or joint venture to the extent of
any pass-through liability, plus (f) any direct or indirect obligation or
liability of Lessor and its Subsidiaries in respect to any Rate Contract that is
not entered into in connection with a bona fide hedging operation that provides
offsetting benefits to Lessee and its Subsidiaries.


                                    1.01-16
   84
      "Liabilities/Tangible Net Worth Ratio" shall mean, with respect to Lessee
at any time, the ratio, determined on a consolidated basis in accordance with
GAAP, of:

            (a)   The Liabilities of Lessee and its Subsidiaries at such time;

                                       to

            (b)   The Tangible Net Worth of Lessee and its Subsidiaries at such
      time.

      "LIBO Rate" shall mean, with respect to any Rental Period for a Portion, a
rate per annum equal to the quotient (rounded upward if necessary to the nearest
1/100 of one percent) of (a) the arithmetic mean (rounded upward if necessary to
the nearest 1/16 of one percent) of the rates per annum appearing on the
Telerate Page 3750 (or any successor publication) on the second Business Day
prior to the first day of such Rental Period at or about 11:00 A.M. (London
time) (for delivery on the first day of such Rental Period) for a term
comparable to such Rental Period (or for a term of one (1) month for any Rental
Period that is less than one (1) month but is at least seven (7) days), divided
by (b) one minus the Reserve Requirement in effect from time to time. If for any
reason rates are not available as provided in clause (a) of the preceding
sentence, the rate to be used in clause (a) shall be, the rate per annum at
which Dollar deposits are offered by ABN AMRO to prime banks in the London
interbank market on the second Business Day prior to the first day of such
Rental Period at or about 11:00 A.M. (London time) (for delivery on the first
day of such Rental Period) in an amount substantially equal to ABN AMRO's
Proportionate Share of the applicable Portion and for a term comparable to such
Rental Period (or for a term of one (1) month for any Rental Period that is less
than one (1) month but is at least seven (7) days). The LIBO Rate shall be
adjusted automatically as of the effective date of any change in the Reserve
Requirement.

      "LIBOR Rental Rate" shall mean, for any Rental Period and Portion, the per
annum rate equal to the LIBO Rate for such Rental Period and Portion, plus the
Applicable Margin, such rate to change from time to time during such period as
the Applicable Margin shall change.

      "Lien" shall mean, with respect to any property, any security interest,
mortgage, pledge, lien, charge or other encumbrance in, of, or on such property
or the income therefrom, including the interest of a vendor or lessor under a
conditional sale agreement, Capital Lease, "synthetic" lease or other title
retention agreement, or any agreement to provide any of the foregoing, and the
filing of any financing statement or similar instrument under the Uniform
Commercial Code or comparable law of any jurisdiction.

      "Major Casualty" shall mean, with respect to the Property, any Casualty
affecting such Property where (a) the damage to such Property is treated by any
insurer of such Property as a total loss; (b) such Property cannot reasonably be
repaired and restored to the condition in which it existed immediately prior to
such Casualty; or (c) the reasonably anticipated cost to repair and restore such
Property to the condition in which it existed immediately prior to such Casualty
would exceed twenty-five percent (25%) of the Outstanding Lease Amount.

      "Major Condemnation" shall mean, with respect to the Property, any
Condemnation affecting such Property where (a) all or substantially all of such
Property is taken by such Condemnation; (b) such Property cannot reasonably be
repaired and restored to the condition in 


                                    1.01-17
   85
which it existed immediately prior to such Condemnation; or (c) the reasonably
anticipated cost to repair and restore such Property to the condition in which
it existed immediately prior to such Condemnation would exceed twenty-five
percent (25%) of the Outstanding Lease Amount.

      "Majority Participants" shall mean (a) at any time the aggregate
Outstanding Lease Amount is greater than $0, Participants whose aggregate
Outstanding Participation Amounts equal or exceed fifty percent (50%) of the
aggregate Outstanding Lease Amount at such time and (b) at any time the
aggregate Outstanding Lease Amount is $0, Participants whose Proportionate
Shares equal or exceed fifty percent (50%).

      "Margin Stock" shall have the meaning given to that term in Regulation U
issued by the Federal Reserve Board, as amended from time to time, and any
successor regulation thereto.

      "Marketing Option" shall have the meaning given to that term in
Subparagraph 3.01(a) of the Purchase Agreement.

      "Marketing Option Event of Default" shall mean any Event of Default other
than a Non-Marketing Option Event of Default.

      "Material Adverse Effect" shall mean a material adverse effect on (a) the
business, assets, operations or financial or other condition of Lessee and its
Subsidiaries, taken as a whole; (b) the ability of Lessee to pay or perform the
Lessee Obligations in accordance with the terms of the Operative Documents; (c)
the rights and remedies of any Lessor Party under the Operative Documents or any
related document, instrument or agreement; or (d) the value of the Property and
the Collateral, any Lessor Party's security interests, Liens or other rights in
the Property and the Collateral or the perfection or priority of such security
interests, Liens or rights.

      "Material Subsidiary" shall mean, as of any date, each Subsidiary of
Lessee whose assets on the last day of the immediately preceding fiscal year
equaled or exceeded five percent (5%) of the consolidated total assets of Lessee
and all of its Subsidiaries on such day. As used herein, "assets" shall mean the
net book value of assets calculated in accordance with GAAP.

      "maturity" shall mean, with respect to any Rent, interest, fee or other
amount payable by Lessee under the Operative Documents, the date such Rent,
interest, fee or other amount becomes due, whether upon the stated maturity or
due date, upon acceleration or otherwise.

      "Modifications" shall have the meaning given to that term in Subparagraph
3.01(c) of the Lease Agreement.

      "Multiemployer Plan" shall mean any multiemployer plan within the meaning
of section 3(37) of ERISA maintained or contributed to by Lessee or any ERISA
Affiliate.

      "Net Proceeds" shall mean, with respect to any sale or issuance of any
Equity Security or any other security by any Person, the aggregate consideration
received by such Person from such sale or issuance less the sum of the actual
amount of the customary fees and commissions payable to Persons other than such
Person or any Affiliate of such Person, the reasonable legal expenses and the
other customary costs and expenses directly related to such sale or issuance
that are to be paid by such Person.


                                    1.01-18
   86
      "New Improvements" shall mean (a) with respect to a particular Tract of
Land, all new Improvements to such Tract and its Existing Improvements
contemplated by the Plans and Specifications for such Tract delivered by Lessee
to Lessor and (b) with respect to all the Land, all such new Improvements. Each
reference to "New Improvements" shall refer collectively to New Improvements
with respect to all the Land unless such reference specifically indicates that
it applies to a particular Tract.

      "Non-Marketing Option Event of Default" shall mean an Event of Default
arising only under Subparagraph 5.01(b) of the Lease Agreement and only as a
result of Lessee's failure to observe or perform a covenant, obligation,
condition or agreement set forth in Paragraph 5.03 of the Participation
Agreement.

      "Notice of Expiration Date Purchase Option Exercise" shall have the
meaning given to that term in Paragraph 3.01 of the Purchase Agreement.

      "Notice of Marketing Option Exercise" shall have the meaning given to that
term in Paragraph 3.01 of the Purchase Agreement.

      "Notice of Partial Purchase Option Exercise" shall have the meaning given
to that term in Subparagraph 2.02(a) of the Purchase Agreement.

      "Notice of Rental Period Selection" shall have the meaning given to that
term in Subparagraph 2.03(a) of the Lease Agreement.

      "Notice of Term Purchase Option Exercise" shall have the meaning given to
that term in Subparagraph 2.01(a) of the Purchase Agreement.

      "Operative Documents" shall mean and include the Participation Agreement,
the Lease Agreement, the Construction Agency Agreement, the Purchase Agreement,
the Lessee Security Documents, the Lessor Deed of Trust, the Lessor Security
Agreement, the Assignment of Lease and the Agent's Fee Letter; all other
notices, requests, certificates, documents, instruments and agreements delivered
to any Lessor Party pursuant to Paragraph 3.01 or 3.02 of the Participation
Agreement; and all notices, requests, certificates, documents, instruments and
agreements delivered to any Lessor Party in connection with any of the foregoing
on or after the date of the Participation Agreement. (Without limiting the
generality of the preceding definition, the term "Operative Documents" shall
include all written waivers, amendments and modifications to any of the notices,
requests, certificates, documents, instruments and agreements referred to
therein.)

      "Outside Completion Date" shall have the meaning given to that term in
Subparagraph 2.01(a) of the Participation Agreement.

      "Outstanding Lease Amount" shall mean, on any date, the remainder of (a)
the sum of all Advances made by Lessor on or prior to such date, minus (b) the
sum of all Lease Reduction Payments applied by Lessor on or prior to such date.

      "Outstanding Participation Amount" shall mean, with respect to any
Participant on any date, the remainder of (a) the sum of the portions of all
Advances funded by such Participant on 


                                    1.01-19
   87
or prior to such date, minus (b) the sum of such Participant's share of all
Lease Reduction Payments applied to the Outstanding Lease Amount on or prior to
such date.

      "Outstanding Tranche A Participation Amount" shall mean, with respect to
any Tranche A Participant on any date, the remainder of (a) such Participant's
Tranche A Portion of all Advances made by Lessor on or prior to such date, minus
(b) such Participant's share of all Lease Reduction Payments applied to the
Tranche A Portion of the Advances on or prior to such date.

      "Outstanding Tranche B Participation Amount" shall mean, with respect to
any Tranche B Participant on any date, the remainder of (a) such Participant's
Tranche B Portion of all Advances made by Lessor on or prior to such date, minus
(b) such Participant's share of all Lease Reduction Payments applied to the
Tranche B Portion of the Advances on or prior to such date.

      "Outstanding Tranche C Participation Amount" shall mean, with respect to
any Tranche C Participant on any date, the remainder of (a) such Participant's
Tranche C Portion of all Advances made by Lessor on or prior to such date, minus
(b) such Participant's share of all Lease Reduction Payments applied to the
Tranche C Portion of the Advances on or prior to such date.

      "Partial Purchase Date" shall have the meaning given to that term in
Subparagraph 2.02(a) of the Purchase Agreement.

      "Partial Purchase Option" shall have the meaning given to that term in
Paragraph 2.02 of the Purchase Agreement.

      "Participants" shall mean the financial institutions from time to time
listed in Schedule I to the Participation Agreement (as amended from time to
time pursuant to Subparagraph 7.05(b) of the Participation Agreement or
otherwise), acting in their capacities as Participants under the Operative
Documents.

      "Participation Agreement" shall mean the Participation Agreement, dated as
of November 12, 1997 among Lessee and the Lessor Parties.

      "PBGC" shall mean the Pension Benefit Guaranty Corporation, or any
successor thereto.

      "Permitted Improvement Costs" shall mean all reasonable costs and expenses
necessary for the construction of the New Improvements to the Tract 1 Land,
Tract 3 Land, Tract 4 Land and Tract 5 Land (not including the costs of the
Land, the Existing Improvements and the other Property to be acquired for the
Acquisition Prices paid by Lessor for the Tract 1 Property, Tract 3 Property,
Tract 4 Property and Tract 5 Property on the Acquisition Dates therefor),
including:

            (a)   All reasonable costs and expenses of building supplies and
      materials necessary for the construction of the New Improvements;


                                    1.01-20
   88
            (b)   All reasonable costs and expenses of architects, engineers,
      contractors and other Persons providing labor and services necessary for
      the construction of the New Improvements; and

            (c)   All reasonable costs and expenses of performance and other
      bonds and other insurance necessary for the construction of the New
      Improvements.

      "Permitted Liens" shall have the meaning given to that term in
Subparagraph 5.02(a) of the Participation Agreement.

      "Permitted Property Liens" shall have the meaning given to that term in
Subparagraph 3.07(a) of such Lease Agreement.

      "Permitted Transaction Expenses" shall mean the following costs and
expenses to the extent payable by Lessee in connection with and directly related
to the preparation, execution and delivery of the Operative Documents and the
transactions contemplated thereby:

            (a)   The reasonable fees and expenses of counsel for Lessee
      incurred in connection with the preparation, negotiation, execution and
      delivery of the Operative Documents;

            (b)   The reasonable fees and expenses of counsel for each of Lessor
      and Agent incurred in connection with the preparation, negotiation,
      execution and delivery of the Operative Documents;

            (c)   The reasonable fees and expenses incurred in recording,
      registering or filing any of the Operative Documents;

            (d)   The title fees, premiums and escrow costs and other expenses
      relating to title insurance and the closing of the transactions
      contemplated by the Operative Documents;

            (e)   The reasonable fees and expenses of required environmental
      audits and appraisals;

            (f)   The reasonable fees and expenses of consultants and
      accountants for Lessee;

            (g)   The reasonable fees and expenses for surveys; and

            (h)   Other related reasonable fees and expenses.

      "Person" shall mean and include an individual, a partnership, a
corporation (including a business trust), a joint stock company, an
unincorporated association, a limited liability company, a joint venture, a
trust or other entity or a Governmental Authority.

      "Personal Property Collateral" shall have the meaning given to that term
in Subparagraph 2.07(b) of the Lease Agreement.


                                    1.01-21
   89
      "Phase IIA Participants" shall have the meaning given to that term in
Recital A to the Participation Agreement.

      "Phase IIA Participation Agreement" shall have the meaning given to that
term in Recital A to the Participation Agreement.

      "Phase IIA Lease Agreement" shall have the meaning given to that term in
Recital A to the Participation Agreement.

      "Phase IIA Termination Payment" shall have the meaning given to that term
in Subparagraph 2.01(a) of the Participation Agreement.

      "Phase IIB Participants" shall have the meaning given to that term in
Recital B to the Participation Agreement.

      "Phase IIB Participation Agreement" shall have the meaning given to that
term in Recital B to the Participation Agreement.

      "Phase IIB Lease Agreement" shall have the meaning given to that term in
Recital B to the Participation Agreement.

      "Phase IIB Termination Payment" shall have the meaning given to that term
in Subparagraph 2.01(a) of the Participation Agreement.

      "Phase II Lease Agreements" shall have the meaning given to that term in
Recital C to the Participation Agreement.

      "Phase II Participants" shall have the meaning given to that term in
Recital C to the Participation Agreement.

      "Phase II Termination Payments" shall have the meaning given to that term
in Subparagraph 2.03(a) of the Participation Agreement.

      "Plans and Specifications" shall mean, with respect to the Tract 1 Land,
Tract 3 Land, Tract 4 Land or Tract 5 Land, the architectural, engineering and
construction plans, specifications and drawings for the new improvements (which
improvements may consist of a building shell or interior improvements only), if
any, to be constructed on such Tract pursuant to the Operative Documents, as
delivered to Lessor pursuant to clause (iii) of Subparagraph 2.01(b) and
Paragraph 3.03 of the Participation Agreement, as such plans, specifications and
drawings may thereafter be revised, amended, supplemented or modified pursuant
to Paragraph 3.01 of the Construction Agency Agreement. Each reference to "Plans
and Specifications" shall refer collectively to the Plans and Specifications
with respect to all the Land unless such reference specifically indicates that
it applies to a particular Tract.

      "Portion" shall mean a portion of the Outstanding Lease Amount. If, at any
time, Lessee has not elected to divide the Outstanding Lease Amount into two or
more portions, any reference to a Portion shall mean the total Outstanding Lease
Amount at such time.


                                    1.01-22
   90
      "Pricing Grid" shall mean Schedule II to the Participation Agreement.

      "Pricing Period" shall mean (a) the period commencing on the date of this
Agreement and ending on December 31, 1997, (b) the three-calendar month period
commencing January 1, 1998 and ending March 31, 1998 and (c) each consecutive
three-calendar month period thereafter which commences on the day following the
last day of the immediately preceding three-calendar month period and ends on
the last day of that time period.

      "Prime Rate" shall mean the per annum rate publicly announced by ABN AMRO
from time to time at its Chicago Office. The Prime Rate is determined by ABN
AMRO from time to time as a means of pricing credit extensions to some customers
and is neither directly tied to any external rate of interest or index nor
necessarily the lowest rate of interest charged by ABN AMRO at any given time
for any particular class of customers or credit extensions. Any change in the
Base Rate resulting from a change in the Prime Rate shall become effective on
the Business Day on which each change in the Prime Rate occurs.

      "Property" shall have the meaning given to that term in Paragraph 2.01 of
the Lease Agreement.

      "Property Collateral" shall have the meaning given to that term in
Subparagraph 2.11(a) of the Participation Agreement.

      "Proportionate Share" shall mean, with respect to each Participant, the
percentage set forth under the caption "Proportionate Share" opposite such
Participant's name on Part A of Schedule I, or, if changed, such percentage as
may be set forth for such Participant in the Register. The Proportionate Share
of each Participant shall equal the sum of such Participant's Tranche A
Proportionate Share, Tranche B Proportionate Share and Tranche C Proportionate
Share.

      "Purchase Agreement" shall have the meaning given to that term in
Subparagraph 2.01(a) of the Participation Agreement.

      "Purchase Documents" shall have the meaning given to that term in
Subparagraph 4.01(a) of the Purchase Agreement.

      "Purchaser" shall have the meaning given to that term in Subparagraph
4.01(b) of the Purchase Agreement.

      "Quick Assets" shall mean, with respect to any Person at any time, the sum
at such time (without duplication) of such Person's cash, cash equivalents, net
accounts receivable, short-term investments and marketable securities.

      "Quick Ratio" shall mean, with respect to Lessee at any time, the ratio,
determined on a consolidated basis in accordance with GAAP, of:

            (a)   The Quick Assets of Lessee and its Subsidiaries at such time;

                                       to


                                    1.01-23
   91
            (b)   The current liabilities of Lessee and its Subsidiaries at such
      time.

      "Rate Contracts" shall mean swap agreements (as that term is defined in
Section 101 of the Federal Bankruptcy Reform Act of 1978, as amended) and any
other agreements or arrangements designed to provide protection against
fluctuations in interest or currency exchange rates.

      "Real Property Collateral" shall have the meaning given to that term in
Subparagraph 2.07(a) of the Lease Agreement.

      "Register" shall have the meaning given to that term in Subparagraph
7.05(b) of the Participation Agreement.

      "Related Agreements" shall mean all chattel paper, accounts, instruments,
documents, investment property and general intangibles relating to any of the
Land, Improvements or Appurtenant Rights or to the present or future
development, construction, operation or use of any of the Land, Improvements or
Appurtenant Rights, including (a) all plans, specifications, construction
agreements, maps, surveys, studies, books of account, records, files, insurance
policies, guarantees and warranties relating to such Land or Improvements or to
the present or future development, construction, operation or use of such Land,
Improvements or Appurtenant Rights (including the Construction Agreements and
the Plans and Specifications); (b) all architectural, engineering, construction
and management contracts, all supply and service contracts for water, sanitary
and storm sewer, drainage, electricity, steam, gas, telephone and other
utilities relating to such Land, Improvements or Appurtenant Rights or to the
present or future development, construction, operation or use of such Land,
Improvements or Appurtenant Rights; and (c) all computer software and
intellectual property, guaranties and warranties, letters of credit, and
documents relating to such Land, Improvements or Appurtenant Rights or to the
present or future development, construction, operation or use of such Land,
Improvements or Appurtenant Rights.

      "Related Goods" shall mean:

            (a)   All machinery, furniture, equipment, fixtures and other goods
      and tangible personal property (including construction materials and
      supplies) financed by any Advance, including all such property described
      in Exhibit B to the Lease Agreement and in each Exhibit B Supplement
      delivered by Lessee; and

            (b)   All machinery, equipment, fixtures and other goods and
      tangible personal property (including construction materials and supplies)
      now or hereafter made part of or used in connection with the construction,
      reconstruction, repair, replacement, alteration, addition, or improvement
      of or to any of the Improvements to the Property or any of the Related
      Goods described in the preceding clause (a), except for any such property
      which may be removed by Lessee from the Property pursuant to Paragraph
      3.10 of the Lease Agreement.

      "Related Permits" shall mean all licenses, authorizations, certificates,
variances, consents, approvals and other permits, now or hereafter pertaining to
any of the Land, 


                                    1.01-24
   92
Improvements or Appurtenant Rights and all tradenames or business names relating
to any of the Land, Improvements or Appurtenant Rights or the present or future
development, construction, operation or use of any of the Land, Improvements or
Appurtenant Rights.

      "Rent" shall mean collectively Base Rent and Supplemental Rent.

      "Rental Periods" shall mean, with respect to any Portion, the time period
selected by Lessee pursuant to Subparagraph 2.03(a) or Subparagraph 2.03(b) of
the Participation Agreement or Subparagraph 2.03(a ) of the Lease Agreement
which commences on the first day of such Portion and ends on the last day of
such time period, and thereafter, each subsequent time period selected by Lessee
pursuant to Subparagraph 2.03(a) of the Lease Agreement which commences on the
last day of the immediately preceding time period and ends on the last day of
that time period.

      "Rental Rate" shall have the meaning given to that term in Subparagraph
2.03(a) of the Lease Agreement.

      "Repair and Restoration Account" shall have the meaning given to that term
in Subparagraph 3.04(c) of the Lease Agreement.

      "Reportable Event" shall have the meaning given to that term in ERISA and
applicable regulations thereunder.

      "Required Participants" shall mean (a) at any time the aggregate
Outstanding Lease Amount is greater than $0, Participants whose aggregate
Outstanding Participation Amounts equal or exceed sixty-six and two-thirds
percent (66-2/3%) or more of the aggregate Outstanding Lease Amount at such time
and (b) at any time the aggregate Outstanding Lease Amount is $0, Participants
whose Proportionate Shares equal or exceed sixty-six and two-thirds percent
(66-2/3%).

      "Requirement of Law" applicable to any Person shall mean (a) the Articles
or Certificate of Incorporation and By-laws, Partnership Agreement or other
organizational or governing documents of such Person, (b) any Governmental Rule
applicable to such Person, (c) any license, permit, approval or other
authorization granted by any Governmental Authority to or for the benefit of
such Person or (d) any judgment, decision or determination of any Governmental
Authority or arbitrator, in each case applicable to or binding upon such Person
or any of its property or to which such Person or any of its property is
subject.

      "Reserve Requirement" shall mean, with respect to any day in any Rental
Period, the aggregate of the reserve requirement rates (expressed as a decimal)
in effect on such day for eurocurrency funding (currently referred to as
"Eurocurrency liabilities" in Regulation D of the Federal Reserve Board)
maintained by a member bank of the Federal Reserve System. As used herein, the
term "reserve requirement" shall include, without limitation, any basic,
supplemental or emergency reserve requirements imposed on any Participant by any
Governmental Authority.

      "Residual Value Guaranty Amount" shall have the meaning given to that term
in Subparagraph 3.02(g) of the Purchase Agreement.


                                    1.01-25
   93
      "Scheduled Expiration Date" shall have the meaning given to that term in
Subparagraph 2.02(a) of the Lease Agreement.

      "Scheduled Rent Payment Date" shall have the meaning given to that term in
Subparagraph 2.03(a) of the Lease Agreement.

      "Secondary Marketing Period" shall have the meaning given to that term in
Subparagraph 3.02(b) of the Purchase Agreement.

      "Seller" shall mean:

            (a)   With respect to the Tract 2 Land and Improvements, BNP Leasing
      Corporation;

            (b)   With respect to the Tract 3 Improvements, BNP Leasing
      Corporation; and

            (c)   With respect to the Tract 4 Land and Improvements, Amdahl
      Corporation.

      "Senior Funded Indebtedness/Capital Ratio" shall mean, with respect to
Lessee at any time, the ratio, determined on a consolidated basis in accordance
with GAAP, of:

            (a)   The remainder of (i) all Funded Indebtedness of Lessee and its
      Subsidiaries at such time minus (ii) all such Funded Indebtedness that is
      subordinated to the Lessee Obligations on terms acceptable to Lessor and
      the Required Participants;

                                       to

            (b)   The sum of (i) the net worth of Lessee and its Subsidiaries at
      such time plus (ii) all Funded Indebtedness of Lessee and its Subsidiaries
      at such time.

      "Solvent" shall mean, with respect to any Person on any date, that on such
date (a) the fair value of the property of such Person is greater than the fair
value of the liabilities (including, without limitation, contingent liabilities)
of such Person, (b) the present fair saleable value of the assets of such Person
is not less than the amount that will be required to pay the probable liability
of such Person on its debts as they become absolute and matured, (c) such Person
does not intend to, and does not believe that it will, incur debts or
liabilities beyond such Person's ability to pay as such debts and liabilities
mature and (d) such Person is not engaged in business or a transaction, and is
not about to engage in business or a transaction, for which such Person's
property would constitute an unreasonably small capital.

      "Subleases" shall mean all leases and subleases of any of the Land,
Improvements and/or Appurtenant Rights by Lessee as lessor or sublessor, now or
hereafter in effect, whether or not of record, including all guaranties and
security therefor and the right to bring actions and proceedings thereunder or
for the enforcement thereof and to do anything which Lessee is or may become
entitled to do thereunder.

      "Subparticipants" shall have the meaning given to that term in
Subparagraph 7.05(c) of the Participation Agreement.


                                    1.01-26
   94
      "Subsidiary" of any Person shall mean (a) any corporation of which more
than 50% of the issued and outstanding Equity Securities having ordinary voting
power to elect a majority of the Board of Directors of such corporation
(irrespective of whether at the time capital stock of any other class or classes
of such corporation shall or might have voting power upon the occurrence of any
contingency) is at the time directly or indirectly owned or controlled by such
Person, by such Person and one or more of its other Subsidiaries or by one or
more of such Person's other Subsidiaries and (b) any partnership, joint venture,
or other association of which more than 50% of the equity interest having the
power to vote, direct or control the management of such partnership, joint
venture or other association is at the time owned and controlled by such Person,
by such Person and one or more of the other Subsidiaries or by one or more of
such Person's other Subsidiaries.

      "Supplemental Rent" shall have the meaning given to such term in
Subparagraph 2.03(b) of the Lease Agreement.

      "Surety Instruments" shall mean all letters of credit (including standby
and commercial), banker's acceptances, bank guaranties, shipside bonds, surety
bonds and similar instruments.

      "Tangible Net Worth" shall mean, with respect to Lessee at any time, the
remainder at such time, determined on a consolidated basis in accordance with
GAAP, of (a) the total assets of Lessee and its Subsidiaries, minus (b) the sum
(without limitation and without duplication of deductions) of (i) the total
liabilities of Lessee and its Subsidiaries, (ii) all reserves established by
Lessee and its Subsidiaries for anticipated losses and expenses (to the extent
not deducted in calculating total assets in clause (a) above) and (iii) all
intangible assets of Lessee and its Subsidiaries (to the extent included in
calculating total assets in clause (a) above), including, without limitation,
goodwill (including any amounts, however designated on the balance sheet,
representing the cost of acquisition of businesses and investments in excess of
underlying tangible assets), trademarks, trademark rights, trade name rights,
copyrights, patents, patent rights, licenses, unamortized debt discount,
marketing expenses, organizational expenses, non-compete agreements and deferred
research and development.

      "Term" shall mean the period beginning on the Commencement Date of the
Lease Agreement and ending on the Expiration Date of the Lease Agreement.

      "Termination Date" shall mean (a) the date set forth in a Notice of Term
Purchase Option as the Scheduled Rent Payment Date on which the Lease Agreement
will be terminated by Lessee pursuant to Paragraph 4.01 of the Lease Agreement
and the Property will be purchased by Lessee pursuant to Section II of the
Purchase Agreement or (b) the date set forth in a written notice delivered by
Lessor to Lessee pursuant to Subparagraph 5.03(a) or 5.04(a) of the Lease
Agreement after the occurrence of an Event of Default thereunder as the date on
which the Lease Agreement will be terminated.

      "Term Purchase Option" shall have the meaning given to that term in
Paragraph 2.01 of the Purchase Agreement.


                                    1.01-27
   95
      "Total Commitment" shall mean the amount set forth as such in Subparagraph
2.01(b) of the Participation Agreement or, if such amount is reduced pursuant to
Subparagraph 2.08(a) of the Participation Agreement, the amount to which so
reduced.

      "Tract" shall mean:

            (a)   With respect to any land, the lots, pieces, parcels and tracts
      of land described in each Part of Exhibit A to each Lease Agreement or
      Exhibit A to the Participation Agreement, as the case may be; and

            (b)   With respect to any Property, a Tract of land, together with
      all Property related to such Tract of land.

"Tract 1 Land," "Tract 2 Land," "Tract 3 Land," "Tract 4 Land" and "Tract 5 Land
shall mean the lots, pieces, parcels and tracts of land described in Part 1,
Part 2, Part 3, Part 4 and Part 5, respectively, of Exhibit A to the
Participation Agreement. Any reference to the Tract 3 Property shall mean the
leasehold interest in the Tract 3 Land and all other Property related to the
Tract 3 Land.

      "Tract 3 Ground Lease Agreement" shall have the meaning given to that term
in Schedule 3.01 to the Participation Agreement.

      "Tract 4 Acquisition Advance" shall have the meaning given to that term in
Subparagraph 2.03(a) of the Participation Agreement.

      "Tract 4 Acquisition Date" shall have the meaning given to that term in
Subparagraph 2.01(a) of the Participation Agreement.

      "Tranche A Participant" shall mean, at any time, any Participant having an
Outstanding Tranche A Participation Amount at such time.

      "Tranche A Percentage" shall mean, with respect to each Participant, the
percentage set forth under the caption "Tranche A Percentage" opposite such
Participant's name on Part A of Schedule I, or, if changed, such percentage as
may be set forth for such Participant in the Register.

      "Tranche A Portion" shall mean, (a) with respect to any Advance without
reference to any Participant, the portion of such Advance equal to the Tranche A
Proportionate Share of such Advance and (b) with respect to any Advance with
reference to any Participant, the portion of such Advance equal to such
Participant's Tranche A Percentage of such Advance.

      "Tranche A Proportionate Share" shall mean eighty-four percent (84%).

      "Tranche B Participant" shall mean, at any time, any Participant having an
Outstanding Tranche B Participation Amount at such time.

      "Tranche B Percentage" shall mean, with respect to each Participant, the
percentage set forth under the caption "Tranche B Percentage" opposite such
Participant's name on Part A of 


                                    1.01-28
   96
Schedule I, or, if changed, such percentage as may be set forth for such
Participant in the Register.

      "Tranche B Portion" shall mean, (a) with respect to any Advance without
reference to any Participant, the portion of such Advance equal to the Tranche B
Proportionate Share of such Advance and (b) with respect to any Advance with
reference to any Participant, the portion of such Advance equal to such
Participant's Tranche B Percentage of such Advance.

      "Tranche B Proportionate Share" shall mean thirteen percent (13%).

      "Tranche C Participant" shall mean, at any time, any Participant having an
Outstanding Tranche C Participation Amount at such time.

      "Tranche C Percentage" shall mean, with respect to each Participant, the
percentage set forth under the caption "Tranche C Percentage" opposite such
Participant's name on Part A of Schedule I, or, if changed, such percentage as
may be set forth for such Participant in the Register.

      "Tranche C Portion" shall mean, (a) with respect to any Advance without
reference to any Participant, the portion of such Advance equal to the Tranche C
Proportionate Share of such Advance and (b) with respect to any Advance with
reference to any Participant, the portion of such Advance equal to such
Participant's Tranche C Percentage of such Advance.

      "Tranche C Proportionate Share" shall mean three percent (3%).

      "Unused" shall mean with respect to the Total Commitment at any time, the
remainder of (a) the Total Commitment at such time minus (b) the aggregate
amount of all Advances made prior to such time.

      "Wholly-Owned Subsidiary" shall mean a Subsidiary of Lessee in which
Lessee owns, directly or indirectly, all of the issued and outstanding stock,
except for (a) directors' qualifying shares and (b) any shares issued to comply
with local ownership legal requirements.


                                    1.01-29
   97
                                  SCHEDULE 1.02

                              RULES OF CONSTRUCTION


      (a)   GAAP. Unless otherwise indicated in any Operative Document, all
accounting terms used in the Operative Documents shall be construed, and all
accounting and financial computations thereunder shall be computed, in
accordance with GAAP. If GAAP changes after the date of the Participation
Agreement such that any covenants contained in the Operative Documents would
then be calculated in a different manner or with different components, Lessee
and the Lessor Parties agree to negotiate in good faith to amend the applicable
Operative Documents in such respects as are necessary to conform those covenants
as criteria for evaluating Lessee's financial condition to substantially the
same criteria as were effective prior to such change in GAAP; provided, however,
that, until Lessee and the Lessor Parities so amend the Operative Documents, all
such covenants shall be calculated in accordance with GAAP as in effect
immediately prior to such change.

      (b)   Headings. Headings in each of the Operative Documents are for
convenience of reference only and are not part of the substance thereof.

      (c)   Plural Terms. All terms defined in any Operative Document in the
singular form shall have comparable meanings when used in the plural form and
vice versa.

      (d)   Time. All references in each of the Operative Documents to a time of
day shall mean San Francisco, California time, unless otherwise indicated. All
references in each of the Operative Documents to a date (the "action date")
which is one month prior to or after another date (the "reference date") shall
mean the date in the immediately preceding or succeeding calendar month (as the
case may be) which numerically corresponds to the reference date; provided,
however, that (i) if such corresponding date in the immediately preceding or
succeeding calendar month (as the case may be) is not a Business Day, the action
date shall be the next succeeding Business Day after such corresponding date
(unless, in the case of a Rental Period, such next Business Day falls in another
calendar month, in which case the action date shall be the immediately preceding
Business Day) and (ii) if the reference date is the last Business Day of a
calendar month (or a day for which there is no numerically corresponding day in
the immediately preceding calendar month) the action date shall be the last
Business Day of the immediately preceding or succeeding calendar month (as the
case may be). All references in each of the Operative Documents to an earlier
date which is two or more months prior to a reference date or to a later date
which is two or more months after a reference date shall be determined in a
comparable manner.

      (e)   Governing Law. Unless otherwise provided in any Operative Document,
each of the Operative Documents shall be governed by and construed in accordance
with the laws of the State of California without reference to conflicts of law
rules.

      (f)   Construction. The Operative Documents are the result of negotiations
among, and have been reviewed by Lessee and each Lessor Party and their
respective counsel. 


                                     1.02-1
   98
Accordingly, the Operative Documents shall be deemed to be the product of all
parties hereto, and no ambiguity shall be construed in favor of or against
Lessee or any Lessor Party.

      (g)   Entire Agreement. The Operative Documents, taken together,
constitute and contain the entire agreement of Lessee and the Lessor Parties and
supersede any and all prior agreements, negotiations, correspondence,
understandings and communications among the parties, whether written or oral,
respecting the subject matter thereof (including the commitment letter dated as
of May 9, 1997 between Lessee and Agent.

      (h)   Calculation of Base Rent, Interest and Fees. All calculations of
Base Rent, interest and fees under the Operative Documents for any period (i)
shall include the first day of such period and exclude the last day of such
period and (ii) shall be calculated on the basis of a year of 360 days for
actual days elapsed, except that during any period that Base Rent or any
interest is to be calculated based upon the Base Rate, such Base Rent or
interest shall be calculated on the basis of a year of 365 or 366 days, as
appropriate, for actual days elapsed.

      (i)   References.

            (i)   References in any Operative Document to "Recitals,"
      "Sections," "Paragraphs," "Subparagraphs," "Articles," "Exhibits" and
      "Schedules" are to recitals, sections, paragraphs, subparagraphs,
      articles, exhibits and schedules therein and thereto unless otherwise
      indicated.

            (ii)  References in any Operative Document to any document,
      instrument or agreement (A) shall include all exhibits, schedules and
      other attachments thereto, (B) shall include all documents, instruments or
      agreements issued or executed in replacement thereof, and (C) shall mean
      such document, instrument or agreement, or replacement or predecessor
      thereto, as amended, modified and supplemented from time to time and in
      effect at any given time.

            (iii) References in any Operative Document to any Governmental Rule
      (A) shall include any successor Governmental Rule, (B) shall include all
      rules and regulations promulgated under such Governmental Rule (or any
      successor Governmental Rule), and (C) shall mean such Governmental Rule
      (or successor Governmental Rule) and such rules and regulations, as
      amended, modified, codified or reenacted from time to time and in effect
      at any given time.

            (iv)  References in any Operative Document to any Person in a
      particular capacity (A) shall include any permitted successors to and
      assigns of such Person in that capacity and (B) shall exclude such Person
      individually or in any other capacity.

      (j)   Other Interpretive Provisions. The words "hereof," "herein" and
"hereunder" and words of similar import when used in any Operative Document
shall refer to such Operative Document as a whole and not to any particular
provision of such Operative Document. The words "include" and "including" and
words of similar import when used in any Operative Document shall not be
construed to be limiting or exclusive. In the event of any inconsistency between
the terms of the Participation Agreement and the terms of any other Operative
Document, the terms of the Participation Agreement shall govern.


                                     1.02-2
   99
                                  SCHEDULE 3.01

              CONDITIONS PRECEDENT TO INITIAL ACQUISITION ADVANCES


A.    PRINCIPAL OPERATIVE DOCUMENTS.

            (1)   The Participation Agreement, duly executed by Lessee, Lessor,
      each Participant and Agent;

            (2)   The Lease Agreement (covering the Initial Property), duly
      executed by Lessee and Lessor and appropriately notarized;

            (3)   The Purchase Agreement (covering the Initial Property), duly
      executed by Lessee and Lessor;

            (4)   The Construction Agency Agreement (covering the Tract 1
      Property, the Tract 3 Property and the Tract 5 Property), duly executed by
      Lessee and Lessor;

            (5)   The Assignment of Lease (covering the Initial Property), duly
      executed by Lessor and appropriately notarized;

            (6)   The Lessor Deed of Trust (covering the Initial Property), duly
      executed by Lessor and appropriately notarized;

            (7)   The Lessor Security Agreement, duly executed by Lessor; and

            (8)   The Assignment of Construction Agreements, duly executed by
      Lessee.


B.    LESSEE CORPORATE DOCUMENTS.

            (1)   The Certificate or Articles of Incorporation of Lessee,
      certified as of a recent date prior to the Closing Date by the Secretary
      of State (or comparable official) of its jurisdiction of incorporation;

            (2)   A Certificate of Good Standing (or comparable certificate) for
      Lessee, certified as of a recent date prior to the Closing Date by the
      Secretary of State (or comparable official) of its jurisdiction of
      incorporation;

            (3)   A certificate of the Secretary or an Assistant Secretary of
      Lessee, dated the Closing Date, certifying (a) that attached thereto is a
      true and correct copy of the Bylaws of Lessee as in effect on the Closing
      Date; (b) that attached thereto are true and correct copies of resolutions
      duly adopted by the Board of Directors of Lessee and continuing in effect,
      which authorize the execution, delivery and performance by Lessee of the
      Operative Documents executed or to be executed by Lessee and the
      consummation of the 


                                     3.01-1
   100
      transactions contemplated thereby; and (c) that there are no proceedings
      for the dissolution or liquidation of Lessee;

            (4)   A certificate of the Secretary or an Assistant Secretary of
      Lessee, dated the Closing Date, certifying the incumbency, signatures and
      authority of the officers of Lessee authorized to execute, deliver and
      perform the Operative Documents and all other documents, instruments or
      agreements related thereto executed or to be executed by Lessee; and

            (5)   A Certificate of Good Standing for Lessee, certified as of a
      recent date prior to the Closing Date by the Secretary of State (or
      comparable official) of California.


C.    FINANCIAL STATEMENTS, FINANCIAL CONDITION, ETC.

            (1)   A copy of the unaudited Financial Statements of Lessee and its
      Subsidiaries for the fiscal quarter ended September 30, 1997 and for the
      fiscal year to such date (prepared on a consolidated and consolidating
      basis), certified by the chief financial officer of Lessee to present
      fairly the financial condition, results of operations and other
      information reflected therein and to have been prepared in accordance with
      GAAP (subject to normal year-end audit adjustments);

            (2)   A copy of the audited consolidated Financial Statements of
      Lessee for the fiscal year ended June 30, 1997 prepared by Price
      Waterhouse LLP and a copy of the unqualified opinion delivered by such
      accountants in connection with such Financial Statements;

            (3)   A copy of the 10-K report filed by Lessee with the Securities
      and Exchange Commission for the fiscal year ended June 30, 1997;

            (4)   Such other financial, business and other information regarding
      Lessee, or any of its Subsidiaries as Agent or any Participant may
      reasonably request, including information as to possible contingent
      liabilities, tax matters, environmental matters and obligations for
      employee benefits and compensation.



D.    COLLATERAL DOCUMENTS.

            (1)   A grant deed transferring fee title in the Tract 2 Property to
      Lessor, duly executed by the Seller thereof and appropriately notarized;

            (2)   A Ground Lease Agreement in the form of Exhibit M, duly
      executed by Lessor and Lessee and appropriately notarized (the "Tract 3
      Ground Lease Agreement");


                                     3.01-2
   101
            (3)   A Memorandum of Purchase Agreement (covering the Initial
      Property), appropriately completed and duly executed by Lessee and Lessor
      and appropriately notarized for recording;

            (4)   Evidence that the Lease Agreement, the Assignment of Lease,
      the Lessor Deed of Trust, the grant deeds, the Tract 3 Ground Lease
      Agreement and the Memoranda of Purchase Agreement delivered pursuant to
      items A(2), A(4), A(5), D(1), D(2) and D(3) have been properly recorded in
      the Official Records of the County of County of Santa Clara, California;

            (5)   An extended coverage owner's policy or binder of title
      insurance (or a commitment therefor) for the Initial Property insuring
      Lessor's fee simple title or leasehold estate, as appropriate, to such
      Property (subject to such exceptions as Agent may approve), in such
      amounts and with such endorsements as Agent may reasonably require, issued
      by a title insurer acceptable to Agent, together with such policies of
      co-insurance or re-insurance (or commitments therefor) as Agent may
      require;

            (6)   An extended coverage lender's policy of title insurance (or a
      commitment therefor) for the Initial Property insuring the validity and
      priority of the Lease Agreement (subject to such exceptions as Agent may
      approve), in such amounts and with such endorsements as Agent may
      reasonably require, issued by a title insurer acceptable to Agent,
      together with such policies of co-insurance or re-insurance (or
      commitments therefor) as Agent may require;

            (7)   An extended coverage lender's policy of title insurance (or a
      commitment therefor) for the Initial Property insuring the validity and
      priority of the Lessor Deed of Trust (subject to such exceptions as Agent
      may approve), in such amounts and with such endorsements as Agent may
      reasonably require, issued by a title insurer acceptable to Agent,
      together with such policies of co-insurance or re-insurance (or
      commitments therefor) as Agent may require;

            (8)   Copies of all leases for the Initial Property and all other
      documents, instruments and agreements recorded against or otherwise
      affecting such Property, including all amendments, extensions and other
      modifications thereof;

            (9)   Subordination, non-disturbance and attornment agreements from
      the lessee under each of the leases for the Initial Property;

            (10)  Such consents and estoppels, with appropriate mortgagee
      protection language, as are requested by Agent, each duly executed by the
      appropriate Person;

            (11)  Such Uniform Commercial Code financing statements and fixture
      filings (appropriately completed and executed) for filing in such
      jurisdictions as Agent may request to perfect the Liens granted to Lessor
      and Agent in the Lessee Security Documents, the Lessor Security Agreement
      and the other Operative Documents;

            (12)  Such Uniform Commercial Code termination statements
      (appropriately completed and executed) for filing in such jurisdictions as
      Agent may request to 


                                     3.01-3
   102
      terminate any financing statement evidencing Liens of other Persons in the
      Collateral which are prior to the Liens granted to Lessor and Agent in the
      Lessee Security Documents, the Lessor Security Agreement and the other
      Operative Documents, except for any such prior Liens which are expressly
      permitted by the Operative Documents to be prior;

            (13)  Uniform Commercial Code search certificates from the
      jurisdictions in which Uniform Commercial Code financing statements are to
      be filed pursuant to item B(11) above reflecting no other financing
      statements or filings which evidence Liens of other Persons in the
      Collateral which are prior to the Liens granted to Lessor and Agent in the
      Lessee Security Documents, the Lessor Security Agreement and the other
      Operative Documents, except for any such prior Liens (a) which are
      expressly permitted by the Operative Documents to be prior or (b) for
      which Agent has received a termination statement pursuant to item B(12)
      above;

            (14)  Such other documents, instruments and agreements as Agents may
      reasonably request to establish and perfect the Liens granted to any
      Lessor Party in the Lessee Security Documents, the Lessor Deed of Trust,
      the Lessor Security Agreement and the other Operative Documents; and

            (15)  Such other evidence as Agent may request to establish that the
      Liens granted to Agent or any Participant in the Lessee Security
      Documents, the Lessor Deed of Trust, the Lessor Security Agreement and the
      other Operative Documents are perfected and prior to the Liens of other
      Persons in the Collateral, except for any such Liens which are expressly
      permitted by the Operative Documents to be prior.

E.    OPINIONS.

            (1)   A favorable written opinion of Wilson, Sonsini, Goodrich &
      Rosati, counsel to Lessee, dated the Closing Date, addressed to Lessor and
      Agent, for the benefit of Agent and the Participants, and covering such
      legal matters as Agent may reasonably request and otherwise in form and
      substance satisfactory to Agent; and

            (2)   A favorable written opinion of the General Counsel of Lessee,
      dated the Closing Date, addressed to Lessor and Agent, for the benefit of
      Agent and the Participants, and covering such legal matters as Agent may
      reasonably request and otherwise in form and substance satisfactory to
      Agent.


F.    OTHER ITEMS.

            (1)   A duly completed and timely delivered Acquisition Request for
      the Initial Acquisition Advances, duly executed by Lessee;


                                     3.01-4
   103
            (2)   A Closing Date Appraisal for each Tract in the Initial
      Property, each dated as of a recent date prior to the Closing Date;

            (3)   Bills of sale for all Related Goods to be acquired with the
      Acquisition Advances to be made on the Closing Date, each reflecting
      Lessor as the purchaser of such Related Goods;

            (4)   An as-built survey of each Tract of the Initial Property (a)
      prepared and dated not more than two (2) months prior to the Closing Date
      by a registered surveyor reasonably satisfactory to Agent, (b) certified
      as correct and as (i) having been made in accordance with the most recent
      standards for "Minimum Standard Detail Requirements for ALTA/ACSM Land
      Title Surveys," jointly established and adopted by ALTA and ACSM, and (ii)
      meeting the accuracy requirements of a Class A survey (as defined therein)
      and including items 1-5, 7-13 and 15 of Table 3 thereof, and (c)
      disclosing, among other things, (i) the location of the perimeter of the
      Property by courses and distances, (ii) all easements and rights-of-way,
      whether above or underground, (iii) the lines of the street abutting the
      Property and the width thereof, (iv) encroachments, if any, and the extent
      thereof in feet and inches upon the Property, and (v) all boundary and lot
      lines, and all other matters that would be disclosed by inspection of the
      Property and the public records;

            (5)   Environmental reports and assessments satisfactory to Agent
      issued by environmental consultants acceptable to Agent with respect to
      the Initial Property;

            (6)   Certificates of insurance evidencing the insurance Lessee is
      required to maintain pursuant to Paragraph 3.03 of the Lease Agreements;

            (7)   The Acquisition Agreements for the Tract 2 Property and the
      Tract 3 Property and assignments of such Acquisition Agreements by Lessee
      to Lessor;

            (8)   A certificate of the Chief Financial Officer of Lessee,
      addressed to Lessor and Agent and dated the Closing Date, certifying that:

                  (a)   The representations and warranties set forth in
            Paragraph 4.01 of the Participation Agreement and in the other
            Operative Documents are true and correct in all material respects as
            of such date (except for such representations and warranties made as
            of a specified date, which shall be true as of such date);

                  (b)   No Default has occurred and is continuing as of such
            date;

                  (c)   All of the Operative Documents are in full force and
            effect on such date.

            (9)   All fees and expenses payable to the Lessor Parties on or
      prior to the Closing Date (including all Agent's Fees);

            (10)  All fees and expenses of Lessor's and Agent's counsels through
      the Closing Date; and


                                     3.01-5
   104
            (11)  Such other evidence as Agent may reasonably request to
      establish the accuracy and completeness of the representations and
      warranties and the compliance with the terms and conditions contained in
      the Operative Documents.


                                     3.01-6
   105
                                  SCHEDULE 3.02

CONDITIONS PRECEDENT TO TRACT 4 ACQUISITION ADVANCE


A.    PRINCIPAL OPERATIVE DOCUMENTS.

            (1)   An amendment to the Lease Agreement adding the Tract 4
      Property to the Property covered thereby, duly executed by Lessee and
      Lessor and appropriately notarized;

            (2)   An amendment to the Purchase Agreement adding the Tract 4
      Property to the Property covered thereby, duly executed by Lessee and
      Lessor;

            (3)   An amendment to the Construction Agency Agreement adding the
      Tract 4 Property to the Property covered thereby, duly executed by Lessee
      and Lessor;

            (4)   An amendment to the Assignment of Lease adding the Tract 4
      Property to the Property covered thereby, duly executed by Lessee and
      Lessor and appropriately notarized; and

            (5)   An amendment to the Lessor Deed of Trust adding the Tract 4
      Property to the Property covered thereby, duly executed by Lessee and
      Lessor and, appropriately notarized.


B.    COLLATERAL DOCUMENTS.

            (1)   An amendment to the Memorandum of Purchase Agreement adding
      the Tract 4 Property to the Property covered thereby, duly executed by
      Lessee and Lessor and appropriately notarized for recording, and evidence
      that such amendment has been properly recorded in the Official Records of
      the County of Santa Clara, California;

            (2)   Evidence that the Lease Agreement, the Assignment of Lease and
      the Lessor Deed of Trust, or amendments thereto, have been properly
      recorded in the Official Records of the County of Santa Clara, California;

            (3)   An extended coverage owner's policy or binder of title
      insurance (or a commitment therefor) for the Tract 4 Property insuring
      Lessor's fee simple title to such Property (subject to such exceptions as
      Agent may approve), in such amounts and with such endorsements as Agent
      may reasonably require, issued by a title insurer acceptable to Agent,
      together with such policies of co-insurance or re-insurance (or
      commitments therefor) as Agent may require;

            (4)   An extended coverage lender's policy of title insurance (or a
      commitment therefor) for the Tract 4 Property insuring the validity and
      priority of the Lease 


                                     3.02-1
   106
      Agreement (subject to such exceptions as Agent may approve), in such
      amounts and with such endorsements as Agent may reasonably require, issued
      by a title insurer acceptable to Agent, together with such policies of
      co-insurance or re-insurance (or commitments therefor) as Agent may
      require;

            (5)   An extended coverage lender's policy of title insurance (or a
      commitment therefor) for the Tract 4 Property insuring the validity and
      priority of the Lessor Deed of Trust (subject to such exceptions as Agent
      may approve), in such amounts and with such endorsements as Agent may
      reasonably require, issued by a title insurer acceptable to Agent,
      together with such policies of co-insurance or re-insurance (or
      commitments therefor) as Agent may require;

            (6)   Copies of all leases for the Tract 4 Property and all other
      documents, instruments and agreements recorded against or otherwise
      affecting such Property, including all amendments, extensions and other
      modifications thereof;

            (7)   Subordination, non-disturbance and attornment agreements from
      the lessee under each of the leases for the Tract 4 Property;

            (8)   Such consents and estoppels, with appropriate mortgagee
      protection language, as are requested by Agent, each duly executed by the
      appropriate Person;

            (9)   Such Uniform Commercial Code financing statements and fixture
      filings (appropriately completed and executed) for filing in such
      jurisdictions as Agent may request to perfect the Liens granted to Lessor
      and Agent in the Lessee Security Documents, the Lessor Security Agreement
      and the other Operative Documents;

            (10)  Such Uniform Commercial Code termination statements
      (appropriately completed and executed) for filing in such jurisdictions as
      Agent may request to terminate any financing statement evidencing Liens of
      other Persons in the Collateral which are prior to the Liens granted to
      Lessor and Agent in the Lessee Security Documents, the Lessor Security
      Agreement and the other Operative Documents, except for any such prior
      Liens which are expressly permitted by the Operative Documents to be
      prior;

            (11)  Uniform Commercial Code search certificates from the
      jurisdictions in which Uniform Commercial Code financing statements are to
      be filed pursuant to item B.(9) above reflecting no other financing
      statements or filings which evidence Liens of other Persons in the
      Collateral which are prior to the Liens granted to Lessor and Agent in the
      Lessee Security Documents, the Lessor Security Agreement and the other
      Operative Documents, except for any such prior Liens (a) which are
      expressly permitted by the Operative Documents to be prior or (b) for
      which Agent has received a termination statement pursuant to item B.(10)
      above;

            (12)  Such other documents, instruments and agreements as Agents may
      reasonably request to establish and perfect the Liens granted to any
      Lessor Party in the Lessee Security Documents, the Lessor Deed of Trust,
      the Lessor Security Agreement and the other Operative Documents; and


                                     3.02-2
   107
            (13)  Such other evidence as Agent may request to establish that the
      Liens granted to Agent or any Participant in the Lessee Security
      Documents, the Lessor Deed of Trust, the Lessor Security Agreement and the
      other Operative Documents are perfected and prior to the Liens of other
      Persons in the Collateral, except for any such Liens which are expressly
      permitted by the Operative Documents to be prior.


C.    OPINIONS.

            (1)   A favorable written opinion of Wilson, Sonsini, Goodrich &
      Rosati, counsel to Lessee, dated the Closing Date, addressed to Lessor and
      Agent, for the benefit of Agent and the Participants, and covering such
      legal matters as Agent may reasonably request and otherwise in form and
      substance satisfactory to Agent; and

            (2)   A favorable written opinion of the General Counsel of Lessee,
      dated the Closing Date, addressed to Lessor and Agent, for the benefit of
      Agent and the Participants, and covering such legal matters as Agent may
      reasonably request and otherwise in form and substance satisfactory to
      Agent.


D.    OTHER ITEMS.

            (1)   A duly completed and timely delivered Acquisition Request for
      the Tract 4 Advance, duly executed by Lessee;

            (2)   A Closing Date Appraisal of the Tract 4 Property;

            (3)   Bills of sale for all Related Goods to be acquired for the
      Acquisition Advance to be made on the Tract 4 Acquisition Date, each
      reflecting Lessor as the purchaser of such Related Goods;

            (4)   An as-built survey of the Tract 4 Property (a) prepared and
      dated not more than two (2) months prior to the Tract 4 Acquisition Date
      by a registered surveyor reasonably satisfactory to Agent, (b) certified
      as correct and as (i) having been made in accordance with the most recent
      standards for "Minimum Standard Detail Requirements for ALTA/ACSM Land
      Title Surveys," jointly established and adopted by ALTA and ACSM, and (ii)
      meeting the accuracy requirements of a Class A survey (as defined therein)
      and including items 1-5, 7-13 and 15 of Table 3 thereof, and (c)
      disclosing, among other things, (i) the location of the perimeter of the
      Tract 4 Property by courses and distances, (ii) all easements and
      rights-of-way, whether above or underground, (iii) the lines of the street
      abutting the Tract 4 Property and the width thereof, (iv) encroachments,
      if any, and the extent thereof in feet and inches upon the Tract 4
      Property, and (v) all boundary and lot lines, and all other matters that
      would be disclosed by inspection of the Tract 4 Property and the public
      records;


                                     3.02-3
   108
            (5)   If requested by Lessor, Agent or any Participant, a list of
      and copies of all Construction Agreements;

            (6)   Environmental reports and assessments satisfactory to Agent
      issued by environmental consultants acceptable to Agent with respect to
      the Tract 4 Property;

            (7)   Certificates of insurance evidencing the insurance Lessee is
      required to maintain pursuant to Paragraph 3.03 of the Lease Agreement;

            (8)   The Acquisition Agreement for the Tract 4 Property and an
      assignment of such Acquisition Agreement by Lessee to Lessor;

            (9)   All fees and expenses payable to the Lessor Parties on or
      prior to the Acquisition Date for the Tract 4 Property (including all
      Agent's Fees);

            (10)  All fees and expenses of Lessor's and Agent's counsels through
      the Acquisition Date for the Tract 4 Property; and

            (11)  Such other evidence as Agent, Lessor or any Participant may
      reasonably request to establish the accuracy and completeness of the
      representations and warranties and the compliance with the terms and
      conditions contained in the Operative Documents.


                                     3.02-4
   109
                                SCHEDULE 4.01(Q)

                                  SUBSIDIARIES

                   Wholly-Owned and Consolidated Subsidiaries




                                                                  STATE OR OTHER
                                                                  JURISDICTION OF              OWNERSHIP BY
NAME                                                              INCORPORATION                KLA-TENCOR
- ----                                                              ---------------              ------------
                                                                                         


UNITED STATES SUBSIDIARIES
Tencor Instruments........................................        California                   wholly-owned
International Sales & Business, Inc.......................        California                   wholly-owned
KLA-Tencor Building Corporation...........................        California                   wholly-owned
KLA-Tencor Disc Corporation...............................        California                   wholly-owned
KLA-Tencor International Corporation......................        California                   wholly-owned
KLA-Tencor Instruments Klinnik Corporation................        California                   wholly-owned
KLA-Tencor Management Corporation.........................        California                   wholly-owned
KLA-Tencor (Thailand Branch) Corporation..................        California                   wholly-owned
VLSI Standards, Inc.......................................        California                   wholly-owned

INTERNATIONAL SUBSIDIARIES
KLA-Tencor (Cayman) Limited I.............................        Cayman Islands               wholly-owned
KLA-Tencor (Cayman) Limited II............................        Cayman Islands               wholly-owned
KLA-Tencor (Cayman) Limited III...........................        Cayman Islands               wholly-owned
KLA-Tencor (Israel) Corporation                                   Israel                       consolidated
KLA-Tencor Holding Corporation 1987 Limited...............        Israel                       consolidated
KLA-Tencor Corporation 1992 Limited.......................        Israel                       consolidated
KLA-Tencor Italy S.R.L....................................        Italy                        consolidated
KLA-Tencor Japan, Ltd.....................................        Japan                        wholly-owned
KLA-Tencor Instruments Sales Corporation                          U.S. Virgin Islands          wholly-owned
Tencor Foreign Sales Corporation                                  Barbados                     wholly-owned
KLA-Tencor GmbH                                                   Germany                      wholly-owned
Tencor Instruments GmbH...................................        Germany                      wholly-owned
KLA-Tencor France SARL                                            France                       wholly-owned
KLA-Tencor Instruments France S.A.........................        France                       wholly-owned
KLA-Tencor Korea, Inc.....................................        Korea                        wholly-owned
KLA-Tencor Limited........................................        United Kingdom               wholly-owned
KLA-Tencor (Malaysia) Snd Bhd.............................        Malaysia                     wholly-owned
KLA-Tencor (Singapore) PTE, Ltd...........................        Singapore                    wholly-owned
Tencor Instruments (Service) Limited......................        United Kingdom               wholly-owned
VLSI Standards, KK........................................        Japan                        wholly-owned



      In addition, KLA-Tencor Corporation holds equity interest in certain other
entities which such interest does not require consolidation for accounting
purposes.


                                    4.01(q)-1
   110
                                SCHEDULE 4.01(S)

                       INDIVIDUAL PROPERTY REPRESENTATIONS


                                    4.01(s)-1
   111
                                SCHEDULE 4.01(S)

                                TRACT 1 PROPERTY

      (i)   The Tract 1 Land consists of 31.068 acres located at One Technology
Drive, Milpitas, California, more particularly described in Part 1 to Exhibit A.

      (ii)  On the date of this Agreement, the Existing Improvements on the
Tract 1 Land consist of three (3) one-story and two (2) two-story buildings.

      (iii) No property, other than the Tract 1 Land and Existing Improvements
thereto will be acquired for the Acquisition Price therefor or will be acquired
after the applicable Acquisition Date therefor.

      (iv)  All utilities required to adequately service the Existing
Improvements for their intended use are available and "tapped on" and hooked up
pursuant to adequate permits (including any that may be required under
applicable Environmental Laws). Access to the Existing Improvements for
pedestrians and motor vehicles from publicly dedicated streets and public
highways are available.

      (v)   No portion of the Tract 1 Property is located in an area identified
as a special flood hazard area by the Federal Emergency Management Agency or
other applicable Governmental Authority, or if any portion of the Property is
located in such an area, flood insurance has been obtained for the Property or
such portion thereof in accordance with Paragraph 3.03 of the Lease Agreement
and the National Flood Insurance Act of 1968.


                                    4.01(s)-2
   112
                                SCHEDULE 4.01(S)

                                TRACT 2 PROPERTY

      (i)   The Tract 2 Land consists of 8.124 acres located at 51 and 77 Rio
Robles, San Jose, California, more particularly described in Part 2 to Exhibit
A.

      (ii)  On the date of this Agreement, the Existing Improvements on the
Tract 2 Land consist of two (2) one-story buildings consisting of 64,895 square
feet and 55,750 square feet respectively.

      (iii) In addition to the Tract 2 Land and Existing Improvements thereto,
the other Tract 2 Property to be acquired for the Acquisition Price therefor on
the Acquisition Date therefor will include the personal property described on
that certain Bill of Sale, Assignment of Contract Rights and Intangible Assets
executed by Seller and Lessor and the other Related Goods more particularly
described in Exhibit B to the Lease Agreement or the applicable Exhibit B
Supplement.

      (iv)  All utilities required to adequately service the Existing
Improvements for their intended use are available and "tapped on" and hooked up
pursuant to adequate permits (including any that may be required under
applicable Environmental Laws). Access to the Existing Improvements for
pedestrians and motor vehicles from publicly dedicated streets and public
highways are available.

      (v)   No portion of the Tract 2 Property is located in an area identified
as a special flood hazard area by the Federal Emergency Management Agency or
other applicable Governmental Authority, or if any portion of the Property is
located in such an area, flood insurance has been obtained for the Property or
such portion thereof in accordance with Paragraph 3.03 of the Lease Agreement
and the National Flood Insurance Act of 1968.


                                    4.01(s)-3
   113
                                SCHEDULE 4.01(S)

                                TRACT 3 PROPERTY

      (i)   The Tract 3 Land consists of 9.2268 acres located at 160 Rio Robles,
San Jose, California, more particularly described in Part 3 to Exhibit A.

      (ii)  On the date of this Agreement, the Existing Improvements on the
Tract 3 Land consist of one (1) building.

      (iii) In addition to the Tract 3 Land and Existing Improvements thereto,
the other Tract 3 Property to be acquired for the Acquisition Price therefor on
the Acquisition Date therefor will include the personal property described on
that certain Bill of Sale, Assignment of Contract Rights and Intangible Assets
executed by Seller and Lessor and the other Related Goods more particularly
described in Exhibit B to the Lease Agreement or the applicable Exhibit B
Supplement.

      (iv)  All utilities required to adequately service the Existing
Improvements for their intended use are available and "tapped on" and hooked up
pursuant to adequate permits (including any that may be required under
applicable Environmental Laws). Access to the Existing Improvements for
pedestrians and motor vehicles from publicly dedicated streets and public
highways are available.

      (v)   No portion of the Tract 3 Property is located in an area identified
as a special flood hazard area by the Federal Emergency Management Agency or
other applicable Governmental Authority, or if any portion of the Property is
located in such an area, flood insurance has been obtained for the Property or
such portion thereof in accordance with Paragraph 3.03 of the Lease Agreement
and the National Flood Insurance Act of 1968.


                                    4.01(s)-4
   114
                                SCHEDULE 4.01(S)

                                TRACT 4 PROPERTY

      (i)   The Tract 4 Land consists of 3.55 acres located at 145 Rio Robles,
San Jose, California, more particularly described in Part 4 to Exhibit A.

      (ii)  On the date of this Agreement, the Existing Improvements on the
Tract 4 Land consist of one (1) one-story building consisting of approximately
52,536 square feet.

      (iii) No property, other than the Tract 4 Land and Existing Improvements
thereto will be acquired for the Acquisition Price therefor or will be acquired
after the applicable Acquisition Date therefor.

      (iv)  All utilities required to adequately service the Existing
Improvements for their intended use are available and "tapped on" and hooked up
pursuant to adequate permits (including any that may be required under
applicable Environmental Laws). Access to the Existing Improvements for
pedestrians and motor vehicles from publicly dedicated streets and public
highways are available.

      (v)   No portion of the Tract 4 Property is located in an area identified
as a special flood hazard area by the Federal Emergency Management Agency or
other applicable Governmental Authority, or if any portion of the Property is
located in such an area, flood insurance has been obtained for the Property or
such portion thereof in accordance with Paragraph 3.03 of the Lease Agreement
and the National Flood Insurance Act of 1968.


                                    4.01(s)-5
   115
                                SCHEDULE 4.01(S)

                                TRACT 5 PROPERTY

      (i)   The Tract 5 Land consists of 8.273 acres located at One Technology
Drive, Milpitas, California, more particularly described in Part 1 to Exhibit A.

      (ii)  There are no Improvements on the Tract 5 Land.

      (iii) No property, other than the Tract 5 Land will be acquired for the
Acquisition Price therefor or will be acquired after the applicable Acquisition
Date therefor.

      (iv)  No portion of the Tract 5 Property is located in an area identified
as a special flood hazard area by the Federal Emergency Management Agency or
other applicable Governmental Authority, or if any portion of the Property is
located in such an area, flood insurance has been obtained for the Property or
such portion thereof in accordance with Paragraph 3.03 of the Lease Agreement
and the National Flood Insurance Act of 1968.


                                    4.01(s)-6
   116
                                    EXHIBIT A

                                      LAND


                                       A-1
   117
                                    EXHIBIT A

                                     PART 1

                                  TRACT 1 LAND


                                       A-2
   118
                                    EXHIBIT A

                                     PART 2

                                  TRACT 2 LAND


                                       A-3
   119
                                    EXHIBIT A

                                     PART 3

                                  TRACT 3 LAND


THE FEE OWNER OF THE REAL PROPERTY DESCRIBED BELOW IS: KLA-TENCOR CORPORATION, A
DELAWARE CORPORATION


                                       A-4
   120
                                    EXHIBIT A

                                 PART 3 (CONT.)

                              TRACT 3 LAND (CONT.)


                                       A-5
   121
                                    EXHIBIT A

                                 PART 3 (CONT.)

                              TRACT 3 LAND (CONT.)


                                       A-6
   122
                                    EXHIBIT A

                                 PART 3 (CONT.)

                              TRACT 3 LAND (CONT.)


                                       A-7
   123
                                    EXHIBIT A

                                     PART 4

                                  TRACT 4 LAND


                                       A-8
   124
                                    EXHIBIT A

                                     PART 5

                                  TRACT 5 LAND


                                       A-9
   125
                                    EXHIBIT B

                                 LEASE AGREEMENT

                                LEASE AGREEMENT,
              CONSTRUCTION DEED OF TRUST WITH ASSIGNMENT OF RENTS,
                      SECURITY AGREEMENT AND FIXTURE FILING

            THIS LEASE AGREEMENT, CONSTRUCTION DEED OF TRUST WITH ASSIGNMENT OF
RENTS, SECURITY AGREEMENT AND FIXTURE FILING (this "Agreement" herein), dated as
of November 12, 1997 is entered into by and between:

            (1)   KLA-TENCOR CORPORATION, a Delaware corporation ("Lessee"); and

            (2)   LEASE PLAN U.S.A., INC., a Georgia corporation, as lessor
      under this Agreement and as trustee under the deed of trust contained
      herein ("Lessor").

                                    RECITALS

            A.    Lessee has requested Lessor and the financial institutions
which are "Participants" under the Participation Agreement referred to in
Recital B below (such financial institutions to be referred to collectively as
the "Participants") to provide to Lessee a certain lease facility. Pursuant to
such facility:

            (1)   Lessor would (a) acquire certain property designated by Lessee
      (either through purchase or lease), (b) lease to Lessee such property and
      certain other property currently held by Lessor, (c) appoint Lessee as
      Lessor's agent to make certain improvements to a portion of such property,
      (d) make advances to finance such improvements and to pay certain related
      expenses, and (e) grant to Lessee the right to purchase such property; and

            (2)   The Participants would participate in such lease facility by
      (a) funding the purchase prices and other advances to be made by Lessor
      and (b) acquiring participation interests in the rental and certain other
      payments to be made by Lessee.

            B.    Pursuant to a Participation Agreement dated of even date
herewith (the "Participation Agreement") among Lessee, Lessor, the Participants
and ABN AMRO Bank N.V., as agent for the Participants (in such capacity,
"Agent"), Lessor and the Participants have agreed to provide such lease facility
upon the terms and subject to the conditions set forth therein, including
without limitation the execution and delivery of this Agreement setting forth
the terms of the lease by Lessor to Lessee of the property.


                                       B-1
   126
                                    AGREEMENT

      NOW, THEREFORE, in consideration of the above Recitals and the mutual
covenants herein contained, the parties hereto hereby agree as follows:

SECTION 1. INTERPRETATION.

      1.01. Definitions. Unless otherwise indicated in this Agreement or any
other Operative Document, each term set forth in Schedule 1.01 to the
Participation Agreement, when used in this Agreement or any other Operative
Document, shall have the respective meaning given to that term in such Schedule
1.01 or in the provision of this Agreement or other document, instrument or
agreement referenced in such Schedule 1.01.

      1.02. Rules of Construction. Unless otherwise indicated in this Agreement
or any other Operative Document, the rules of construction set forth in Schedule
1.02 to the Participation Agreement shall apply to this Agreement and the other
Operative Documents.

SECTION 2. BASIC PROVISIONS.

      2.01. Lease of the Property. Subject to the acquisition thereof by Lessor
pursuant to the Participation Agreement and applicable Acquisition Agreements
either as of the date hereof or during the term hereof, Lessor agrees to lease
to Lessee and Lessee agrees to lease from Lessor the following property (the
"Property") to the extent of Lessor's estate, right, title and interest therein,
thereto or thereunder:

            (a)   All lots, pieces, tracts and parcels of land described in
      Exhibit A together with such additional parcels of real property as may be
      added to Exhibit A from time to time during the term hereof (the "Land");

            (b)   All Improvements located on the Land;

            (c)   All Appurtenant Rights belonging, relating or pertaining to
      any of the Land or Improvements;

            (d)   All Related Goods (including those described in Exhibit B and
      in each Exhibit B Supplement), Related Permits and Related Agreements
      related to any of the foregoing Land, Improvements or Appurtenant Rights;
      and

            (e)   All accessions and accretions to and replacements and
      substitutions for the foregoing.

(Lessee understands that Lessor's only interest in the Tract 3 Land is through
the Tract 3 Ground Lease Agreement and is a leasehold interest only.)


                                      B-2
   127
      2.02. Term.

            (a)   Original Term. The original term of this Agreement shall
      commence on the Closing Date (the "Commencement Date") and shall end on
      the first Business Day of November, 2002 (such date as it may be extended
      pursuant to Subparagraph 2.02(b) to be referred to as the "Scheduled
      Expiration Date").

            (b)   Extensions. Lessee may request Lessor to extend the Scheduled
      Expiration Date in effect for an additional period of two (2) years, as
      provided in Subparagraph 2.09(b) of the Participation Agreement. If Lessor
      and each Participant consents to such a request in accordance with such
      provision, the definition of "Scheduled Expiration Date" set forth in
      Subparagraph 2.02(a) shall be deemed extended to the date which is the
      first business day of November, 2004. Lessee acknowledges that neither
      Lessor nor any Participant has any obligation or commitment (either
      express or implied) to extend, or consent to the extension of, the
      Scheduled Expiration Date at any time.

      2.03. Rent.

            (a)   Base Rent.

                  (i)   Lessee shall pay to Lessor as base rent hereunder ("Base
            Rent") for each Rental Period for each Portion of the Outstanding
            Lease Amount an amount equal to the product of (A) the Rental Rate
            for such Rental Period and Portion, times (B) the amount of such
            Portion on the first day of such Rental Period, times (C) a
            fraction, the numerator of which is the number of days in such
            Rental Period and the denominator of which is 360. If the Rental
            Rate shall change during any Rental Period, the Rental Rate for such
            Rental Period shall be the weighted average of the Rental Rates in
            effect from time to time during such Rental Period.

                  (ii)  Lessee may select the number and amounts of the Portions
            into which the Outstanding Lease Amount is to be divided and the
            Rental Period for each such Portion by (y) setting forth in each
            Acquisition Advance Request delivered by Lessee pursuant to
            Subparagraph 2.03(a) of the Participation Agreement the Portions
            into which Advances initially are to be divided and the initial
            Rental Periods therefor and (z) delivering to Lessor at least three
            (3) Business Days prior to the last day of each Rental Period for a
            Portion an irrevocable written notice in the form of Exhibit C,
            appropriately completed (a "Notice of Rental Period Selection"),
            subject to the following:

                        (A)   Each Portion shall be in the amount of $5,000,000
                  or an integral multiple of $100,000 in excess thereof;
                  provided, however, that (1) during the Commitment Period, all
                  Improvement/Expense Advances made after the Closing Date shall
                  be combined as a single Portion (which may be less than
                  $5,000,000), (2) the total number of Portions outstanding at
                  any time shall not exceed four (4), and (3) the Outstanding
                  Lease Amount shall consist of a single Portion in the amount
                  of the Outstanding Lease Amount if the Outstanding Lease
                  Amount is less than $5,000,000).


                                      B-3
   128
                        (B)   The initial and each subsequent Rental Period
                  selected by Lessee for each Portion shall be one (1), two (2),
                  three (3), six (6) or twelve (12) months; provided, however,
                  that (1) the initial Rental Period for any Portion that is
                  originated on an Acquisition Date that is not the first
                  Business Day of a calendar month shall begin on such
                  Acquisition Date and shall end on the first Business Day of
                  the first calendar month immediately following the month in
                  which such origination occurs, (2) every other Rental Period
                  shall begin and end on the first Business Day of a calendar
                  month, (3) during the Commitment Period, the Rental Period for
                  the Portion consisting of all Improvement/Expense Advances
                  made after the Closing Date shall be one (1) month, (4) no
                  Rental Period shall end after the Scheduled Expiration Date,
                  (5) no Rental Period shall be longer than one (1) month if a
                  Default has occurred and is continuing on the date three (3)
                  Business Days prior to the first day of such Rental Period and
                  (6) each Rental Period after the initial Rental Period for any
                  Portion for which Lessee fails to make a selection by
                  delivering a Notice of Rental Period Selection in accordance
                  with this clause (ii) shall be one (1) month.

                  Lessee shall deliver each Notice of Rental Period Selection by
                  first-class mail or facsimile as required by Subparagraph
                  2.02(a) and Paragraph 7.01 of the Participation Agreement;
                  provided, however, that Lessee shall promptly deliver the
                  original of any Notice of Rental Period Selection initially
                  delivered by facsimile.

                  (iii) The rental rate for each Rental Period for a Portion
            ("Rental Rate") shall be the LIBOR Rental Rate for such Rental
            Period and Portion, except as follows:

                        (A)   The Rental Rates for the Rental Periods that begin
                  on the Closing Date and on the Tract 4 Acquisition Date and
                  end on December 1, 1997 shall be a rate agreed upon by Lessee
                  and Lessor; or

                        (B)   If any other Rental Period is less than seven (7)
                  days, the Rental Rate for such Rental Period shall be the
                  Alternate Rental Rate; or

                        (C)   If the LIBOR Rental Rate is unavailable for any
                  Rental Period pursuant to Subparagraph 2.12(a) or Subparagraph
                  2.12(b) of the Participation Agreement, the Rental Rate for
                  such Rental Period shall be the Alternate Rental Rate.

                  (iv)  Lessee shall pay Base Rent in arrears (A) for each
            Portion, on the last day of each Rental Period therefor and, in the
            case of any Rental Period which exceeds three (3) months, each day
            occurring every three (3) months after the first day of such Rental
            Period (individually, a "Scheduled Rent Payment Date") and (B) for
            all Portions, on the Expiration Date.


                                      B-4
   129
            (b)   Supplemental Rent. Lessee shall pay as supplemental rent
      hereunder ("Supplemental Rent") all amounts (other than Base Rent, the
      purchase price payable by Lessee for any purchase of the Property by
      Lessee pursuant to the Purchase Agreement and the Residual Value Guaranty
      Amount payable under the Purchase Agreement) payable by Lessee under this
      Agreement and the other Operative Documents. Lessee shall pay all
      Supplemental Rent amounts on the dates specified in this Agreement and the
      other Operative Documents for the payment of such amounts or, if no date
      is specified for the payment of any such amount, upon the demand of Lessor
      or any other Person to whom such amount is payable.

      2.04. Use. Lessee may use the Property for office, research and
development, warehouse and manufacturing purposes, and for any other purpose
which is in compliance with applicable zoning laws and ordinances for the 
Property.

      2.05. "As Is" Lease. Lessee has conducted, or will conduct from time to
time with regard to property that may be added hereto after the date hereof, all
due diligence which it deems appropriate regarding the Property and agrees that
no Lessor Party has any obligation to conduct any such due diligence. Lessee is
leasing the Property "as is, with all faults" without any representation,
warranty, indemnity or undertaking by any Lessor Party regarding any aspect of
the Property, including (a) the condition of the Property (including any
Improvements to the Property made prior to the Commencement Date or during the
Term); (b) title to the Property (including possession of the Property by any
Person or the existence of any Lien or any other right, title or interest in or
to any of the Property in favor of any Person); (c) the value, habitability,
usability, design, operation or fitness for use of the Property; (d) the
availability or adequacy of utilities and other services to the Property; (e)
any latent, hidden or patent defect in the Property; (f) the zoning or status of
the Property or any other restrictions on the use of the Property; (g) the
economics of the Property; (h) any Casualty or Condemnation; or (i) the
compliance of the Property with any applicable Governmental Rule or Insurance
Requirement; provided, however, that Lessor shall be obligated to remove Lessor
Liens to the extent required in Subparagraph 5.04(b) of the Participation
Agreement. Without limiting the generality of the foregoing, Lessee specifically
waives any covenant of quiet enjoyment except as otherwise provided in
Subparagraph 5.04(b) of the Participation Agreement.

      2.06. Nature of Transaction. As more fully provided in Paragraph 2.10 of
the Participation Agreement, Lessee and the Lessor Parties intend that the
transaction evidenced by this Agreement and the other Operative Documents
constitute an operating lease in accordance with FASB 13 for accounting purposes
and a loan secured by the Property for all other purposes, including federal,
state and local income tax purposes and commercial, real estate and bankruptcy
law purposes.

      2.07. Security, Etc. In order to secure the Lessee Obligations and
otherwise to assure the Lessor Parties the benefits hereof in the event that the
transaction evidenced by this Agreement and the other Operative Documents is,
pursuant to the intent of Lessee and the Lessor Parties, treated as a loan for
certain purposes, Lessee hereby makes the following grants and agrees as
follows:


                                      B-5
   130
            (a)   Real Property Security. As security for the Lessee
      Obligations, Lessee hereby irrevocably and unconditionally grants,
      conveys, transfers and assigns to Lessor, in trust for the benefit of the
      Lessor Parties, with power of sale and right of entry and possession, all
      estate, right, title and interest of Lessee in the following property,
      whether now owned or leased or hereafter acquired, (collectively, the
      "Real Property Collateral"):

                  (i)   The Land;

                  (ii)  All Improvements located on the Land;

                  (iii) All Appurtenant Rights belonging, relating or pertaining
            to any of the foregoing Land or Improvements;

                  (iv)  All Subleases of and all Issues and Profits accruing
            from any of the foregoing Land, Improvements or Appurtenant Rights
            to the extent that such Subleases and Issues and Profits constitute
            real property;

                  (v)   All Related Goods, Related Permits and Related
            Agreements related to any of the foregoing Land, Improvements or
            Appurtenant Rights to the extent that such Related Goods, Related
            Agreements and Related Permits constitute real property;

                  (vi)  All other Property to the extent that such property
            constitutes real property; and

                  (vii) All proceeds of the foregoing, including Casualty and
            Condemnation Proceeds.

            (b)   Personal Property Security. As security for the Lessee
      Obligations, Lessee hereby irrevocably and unconditionally assigns and
      grants to Lessor, for the benefit of the Lessor Parties, a security
      interest in all estate, right, title and interest of Lessee in the
      following property, whether now owned or leased or hereafter acquired,
      (collectively, the "Personal Property Collateral"):

                  (i)   All Subleases of and all Issues and Profits accruing
            from any of the Land, Improvements or Appurtenant Rights to the
            extent that such Subleases and Issues and Profits constitute
            personal property;

                  (ii)  All Related Goods, Related Permits and Related
            Agreements related to any of the Land, Improvements or Appurtenant
            Rights to the extent that such Related Goods, Related Agreements and
            Related Permits constitute personal property;

                  (iii) All Cash Collateral and all other deposit accounts,
            instruments, investment property and monies held by any Lessor Party
            in connection with this Agreement or any other Operative Document
            (including any Repair and Restoration Account);


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                  (iv)  All other Property to the extent such Property
            constitutes personal property; and

                  (v)   All proceeds of the foregoing, including Casualty and
            Condemnation Proceeds.

      This Agreement constitutes a fixture filing for purposes of the California
      Commercial Code with respect to the Related Goods which are or are to
      become fixtures on the Land or Improvements.

            (c)   Absolute Assignment of Subleases, Issues, and Profits. Lessee
      hereby irrevocably assigns to Lessor, for the benefit of the Lessor
      Parties, all of Lessee's estate, right, title and interest in, to and
      under the Subleases and the Issues and Profits, whether now owned or
      hereafter acquired. This is a present and absolute assignment, not an
      assignment for security purposes only, and Lessor's right to the Subleases
      and Issues and Profits is not contingent upon, and may be exercised
      without possession of, the Property.

                  (i)   If no Event of Default has occurred and is continuing,
            Lessee shall have a revocable license to collect and retain the
            Issues and Profits as they become due. Upon the occurrence and
            during the continuance of an Event of Default, such license shall
            automatically terminate, and Lessor may collect and apply the Issues
            and Profits pursuant to Subparagraph 5.02(d) without further notice
            to Lessee or any other party and without taking possession of the
            Property. All Issues and Profits thereafter collected by Lessee
            shall be held by lessee as trustee in a constructive trust for the
            benefit of Lessor. Lessee hereby irrevocably authorizes and directs
            the sublessees under the Subleases, without any need on their part
            to inquire as to whether an Event of Default has actually occurred
            or is then existing, to rely upon and comply with any notice or
            demand by Lessor for the payment to Lessor of any rental or other
            sums which may become due under the Subleases or for the performance
            of any of the sublessees' undertakings under the Subleases.
            Collection of any Issues and Profits by Lessor shall not cure or
            waive any default or notice of default hereunder or invalidate any
            acts done pursuant to such notice.

                  (ii)  The foregoing irrevocable assignment shall not cause any
            Lessor Party to be (A) a mortgagee in possession; (B) responsible or
            liable for (1) the control, care, management or repair of the
            Property or for performing any of Lessee's obligations or duties
            under the Subleases, (2) any waste committed on the Property by the
            sublessees under any of the Subleases or by any other Persons, (3)
            any dangerous or defective condition of the Property, or (4) any
            negligence in the management, upkeep, repair or control of the
            Property resulting in loss or injury or death to any sublessee,
            licensee, employee, invitee or other Person; or (C) responsible for
            or impose upon any Lessor Party any duty to produce rents or
            profits. No Lessor Party, in the absence of gross negligence or
            willful disregard on its part, shall be liable to Lessee as a
            consequence of (y) the exercise or failure to exercise any of the
            rights, remedies or powers granted to Lessor hereunder or 


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            (z) the failure or refusal of Lessor to perform or discharge any
            obligation, duty or liability of Lessee arising under the Subleases.

SECTION 3. OTHER LESSEE AND LESSOR RIGHTS AND OBLIGATIONS.

      3.01. Maintenance, Repair, Etc.

            (a)   General. Lessee shall not permit any waste of the Property,
      except for ordinary wear and tear, and shall, at its sole cost and
      expense, maintain the Property in good working order, mechanical condition
      and repair and make all necessary repairs thereto, of every kind and
      nature whatsoever, whether interior or exterior, ordinary or
      extraordinary, structural or nonstructural or foreseen or unforeseen, in
      each case as required by all applicable Governmental Rules and Insurance
      Requirements and on a basis consistent with the operation and maintenance
      of commercial properties comparable in type and location to the Property
      and in compliance with prudent industry practice.

            (b)   New Improvements. Lessee shall make or cause to be made all of
      the New Improvements authorized and required by the Construction Agency
      Agreement in accordance with the Construction Agency Agreement.

            (c)   Other Modifications. Lessee, at its sole cost and expense, may
      from time to time make alterations, renovations, improvements and
      additions to the Property and substitutions and replacements therefor
      (collectively, "Modifications") in addition to the New Improvements;
      provided that:

                  (i)   No Modification impairs the value, utility or useful
            life of the Property or any part thereof from that which existed
            immediately prior to such Modification;

                  (ii)  All Modifications are made expeditiously and, in all
            cases unless Lessee currently is exercising either the Term Purchase
            Option or the Expiration Date Purchase Option, completed not later
            than six (6) months prior to the Scheduled Expiration Date;

                  (iii) All Modifications are made in a good and workmanlike
            manner and in compliance with all applicable Governmental Rules and
            Insurance Requirements;

                  (iv)  Subject to Paragraph 3.12 relating to permitted
            contests, Lessee pays all costs and expenses and discharges (or
            cause to be insured or bonded over) any Liens arising in connection
            with any Modification not later than the earlier of (A) sixty (60)
            days after the same shall be filed (or otherwise becomes effective)
            and (B) unless Lessee currently is exercising either the Term
            Purchase Option or the Expiration Date Purchase Option, six (6)
            months prior to the Scheduled Expiration Date;

                  (v)   At least one (1) month prior to the commencement of (A)
            any Modifications which are anticipated to cost $2,500,000 or more
            in the aggregate, 


                                      B-8
   133
            or (B) any Modifications which cause the total of all Modifications
            undertaken during the previous twelve-month period to exceed an
            aggregate cost of $5,000,000, Lessee shall deliver to Lessor, with
            sufficient copies for Agent and each Participant, a brief written
            description of such Modifications; and

                  (vi)  All Modifications otherwise comply with this Agreement
            and the other Operative Documents.

            (d)   Abandonment. Lessee shall not abandon the Property or any
      material portion thereof for any period in excess of thirty (30)
      consecutive days during the term hereof, except as a part of any New
      Improvements or Modifications as permitted herein or in the other
      Operative Documents.

      3.02. Risk of Loss. Lessee assumes all risks of loss arising from any
Casualty or Condemnation which arises or occurs prior to the Expiration Date or
while Lessee is in possession of the Property and all liability for all personal
injuries and deaths and damages to property suffered by any Person or property
on or in connection with the Property which arises or occurs prior to the
Expiration Date or while Lessee is in possession of the Property, except in each
case to the extent any such loss or liability is primarily caused by the gross
negligence or willful misconduct of a Lessor Party. Lessee hereby waives the
provisions of California Civil Code Sections 1932(1), 1932(2) and 1933(4), and
any and all other applicable existing or future Governmental Rules permitting
the termination of this Agreement as a result of any Casualty or Condemnation,
and Lessor shall in no event be answerable or accountable for any risk of loss
of or decrease in the enjoyment and beneficial use of the Property as a result
of any such event.

      3.03. Insurance.

            (a)   Coverage. Lessee, at its sole cost and expense, shall carry
      and maintain the following insurance coverage:

                  (i)   At all times during the Term, commercial liability
            insurance covering claims for injuries or death sustained by persons
            or damage to property while on the Property, and workers'
            compensation insurance;

                  (ii)  At all times during the Term, property insurance
            covering loss or damage by fire, flood and other risks in an amount
            not less than the then current replacement cost of the Improvements
            on the Property;

                  (iii) During the construction of any Improvements, builders'
            risk insurance covering fire, flood and other normal insured risks;
            and

                  (iv)  At all times during the Term as appropriate, such other
            insurance of the types customarily carried by a reasonably prudent
            Person owning or operating properties similar to the Property in the
            same geographic area as the Property;

      Provided, however, that this Subparagraph 3.03(a) (A) shall not be
      construed to require Lessee to carry 


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   134
      or maintain earthquake insurance and (B) shall not require Lessee to carry
      or maintain flood insurance in an amount in excess of the amount required
      by any Governmental Rule applicable to Lessee or any Lessor Party. Except
      as otherwise specifically required above, such insurance shall be in
      amounts, in a form and with deductibles customarily carried by a
      reasonably prudent Person owning or operating properties similar to the
      Property in the same geographic area as the Property.


                                      B-10
   135
            (b)   Carriers. Any insurance carried and maintained by Lessee
      pursuant to this Paragraph 3.03 shall be underwritten by an insurance
      company which (i) has, at the time such insurance is placed and at the
      time of each renewal thereof, a general policyholder rating of "A" and a
      financial rating of at least 9 from A.M. Best and Company or any successor
      thereto (or if there is none, an organization having a similar national
      reputation) or (ii) is otherwise approved by Lessor and Required
      Participants; provided, however, that Lessee may, if no Event of Default
      has occurred and is continuing, self-insure.

            (c)   Terms. Each insurance policy maintained by Lessee pursuant to
      this Paragraph 3.03 shall provide as follows, whether through endorsements
      or otherwise:

                  (i)   Lessor and Agent shall be named as additional insureds,
            in the case of each policy of liability and property insurance, and
            additional loss payees, in the case of each policy of property
            insurance.

                  (ii)  In respect of the interests of Lessor in the policy, the
            insurance shall not be invalidated by any action or by inaction of
            Lessee or by any Person having temporary possession of the Property
            while under contract with Lessee to perform maintenance, repair,
            alteration or similar work on the Property, and shall insure the
            interests of Lessor regardless of any breach or violation of any
            warranty, declaration or condition contained in the insurance policy
            by Lessee, Lessor or any other additional insured (other than by
            such additional insured, as to such additional insured); provided,
            however, that the foregoing shall not be deemed to (A) cause such
            insurance policies to cover matters otherwise excluded from coverage
            by the terms of such policies or (B) require any insurance to remain
            in force notwithstanding non-payment of premiums except as provided
            in clause (iii) below.

                  (iii) If the insurance policy is cancelled for any reason
            whatsoever, or substantial change is made in the coverage that
            affects the interests of Lessor, or if the insurance coverage is
            allowed to lapse for non-payment of premium, such cancellation,
            change or lapse shall not be effective as to Lessor for thirty (30)
            days after receipt by Lessor of written notice from the insurers of
            such cancellation, change or lapse.

                  (iv)  No Lessor Party shall have any obligation or liability
            for premiums, commissions, assessments, or calls in connection with
            the insurance.

                  (v)   The insurer shall waive any rights of set-off or
            counterclaim or any other deduction, whether by attachment or
            otherwise, that it may have against any Lessor Party.

                  (vi)  The insurance shall be primary without right of
            contribution from any other insurance that may be carried by any
            Lessor Party with respect to its interest in the Property.

                  (vii) The insurer shall waive any right of subrogation against
            any Lessor Party.


                                      B-11
   136
                  (viii) All provisions of the insurance, except the limits of
            liability, shall operate in the same manner as if there were a
            separate policy covering each insured party.

                  (ix)  The insurance shall not be invalidated should Lessee or
            any Lessor Party waive, in writing, prior to a loss, any or all
            rights of recovery against any Person for losses covered by such
            policy, nor shall the insurance in favor of any Lessor Party or
            Lessee, as the case may be, or their respective rights under and
            interests in said policies be invalidated or reduced by any act or
            omission or negligence of any Lessee Party or Lessor, as the case
            may be, or any other Person having any interest in the Property.

                  (x)   If the insurer has not received written notice from
            Lessor that an Event of Default has occurred and is continuing, (A)
            all insurance proceeds in respect of any loss or occurrence with a
            value of less than fifteen million Dollars ($15,000,000) shall be
            paid to and adjusted solely by Lessee and (B) all other insurance
            proceeds shall be paid to Lessor and adjusted jointly by Lessor and
            Lessee. From and after the date on which the insurer receives
            written notice from Lessor that an Event of Default has occurred and
            is continuing (and unless and until such insurer receives written
            notice from Lessor that all Events of Default have been cured), all
            losses shall be adjusted solely by, and all insurance proceeds shall
            be paid solely to, Lessor.

                  (xi)  Each policy shall contain a standard form mortgage
            endorsement in favor of Lessor.

            (d)   Evidence of Insurance. Lessee, at its sole cost and expense,
      shall furnish to Lessor from time to time upon the request of Lessor such
      certificates or other documents as Lessor may reasonably request to
      evidence Lessee's compliance with the insurance requirements set forth in
      this Paragraph 3.03.

            (e)   Release of Lessor Parties. Lessee hereby waives, releases and
      discharges each Lessor Party and its directors, officers, employees,
      agents and advisors from all claims whatsoever arising out of any loss,
      claim, expense or damage to or destruction covered or coverable by
      insurance required under this Paragraph 3.03 to the extent the policies
      for such insurance permit such waiver, notwithstanding that such loss,
      claim, expense or damage may have been caused by any such Person, and, as
      among Lessee and such Persons, Lessee agrees to look to the insurance
      coverage only in the event of such loss.

      3.04. Casualty and Condemnation.

            (a)   Notice. Lessee shall give Lessor prompt written notice of the
      occurrence of any Casualty affecting, or the institution of any
      proceedings for the Condemnation of, the Property or any portion thereof.


                                      B-12
   137
            (b)   Repair or Purchase Option. After the occurrence of any
      Casualty or Condemnation affecting the Property or any portion thereof,
      Lessee shall either (i) repair and restore the Property as required by
      Subparagraph 3.04(c) or (ii) exercise the Term Purchase Option and
      purchase the Property pursuant to the Purchase Agreement; provided,
      however, that Lessee may not elect to repair and restore the Property if
      such casualty or condemnation is a Major Casualty or Major Condemnation or
      if an Event of Default has occurred and is continuing, unless Lessor and
      the Required Participants shall consent in writing. Not later than one (1)
      month after the occurrence of any Casualty or Condemnation, Lessee shall
      deliver to Lessor a written notice indicating whether it elects to repair
      and restore or purchase the Property

            (c)   Repair and Restoration. If Lessee elects to repair and restore
      the Property following any Casualty or Condemnation, Lessee shall
      diligently proceed to repair and restore the Property to the condition in
      which it existed immediately prior to such Casualty or Condemnation and
      shall use reasonable efforts to complete all such repairs and restoration
      as soon as reasonably practicable, but not later than six (6) months prior
      to the Scheduled Expiration Date unless Lessee currently is exercising
      either the Term Purchase Option or the Expiration Date Purchase Option,.
      Lessee shall use its own funds to make such repairs and restoration,
      except to the extent any Casualty and Condemnation Proceeds are available
      and are released to Lessee for such purpose pursuant to Subparagraph
      3.04(f). Lessee's exercise of the repair and restoration option shall, if
      Lessor or Required Participants direct, be subject to satisfaction of the
      following conditions within one (1) month after the occurrence of the
      Casualty or Condemnation:

                  (i)   Deposit in a deposit account acceptable to and
            controlled by Lessor (a "Repair and Restoration Account") of funds
            (including any Casualty and Condemnation Proceeds which are
            available and are released to Lessee pursuant to Subparagraph
            3.04(f)) in the amount which Lessor determines is needed to complete
            and fully pay all costs of the repair or restoration (including
            taxes, financing charges, insurance and rent during the repair
            period);

                  (ii)  The establishment of an arrangement for lien releases
            and disbursement of funds acceptable to Lessor and in a manner and
            upon such terms and conditions as would be required by a prudent
            interim construction lender; and

                  (iii) The delivery to Lessor of the following, each in form
            and substance acceptable to Lessor;

                        (A)   Evidence that the Property can, in Lessor's
                  reasonable judgment, with diligent restoration or repair, be
                  returned to a condition at least equal to the condition
                  thereof that existed prior to the Casualty or partial
                  Condemnation causing the loss or damage within the earlier to
                  occur of (A) six (6) months after the occurrence of the
                  Casualty or Condemnation and (B) unless Lessee currently is
                  exercising either the Term Purchase Option or the Expiration
                  Date Purchase Option, six (6) months prior to the Scheduled
                  Expiration Date;


                                      B-13
   138
                        (B)   Evidence that all necessary governmental approvals
                  can be timely obtained to allow the rebuilding and reoccupancy
                  of the Property;

                        (C)   Copies of all plans and specifications for the
                  work;

                        (D)   Copies of all contracts for the work, signed by a
                  contractor reasonably acceptable to Lessor;

                        (E)   A cost breakdown for the work;

                        (F)   A payment and performance bond for the work or
                  other security satisfactory to Lender;

                        (G)   Evidence that, upon completion of the work, the
                  size, capacity and total value of the Property will be at
                  least as great as it was before the Casualty or Condemnation
                  occurred; and

                        (H)   Evidence of satisfaction of any additional
                  conditions that Lessor or Required Participants may reasonably
                  establish to protect their rights under this Agreement and the
                  other Operative Documents.

            All plans and specifications for the work must be reasonably
            acceptable to Lessor, except that Lessor's approval shall not be
            required if the restoration work is based on the same plans and
            specifications as were originally used to construct the Property. To
            the extent that the funds in a Repair and Restoration Account
            include both Casualty and Condemnation Proceeds and other funds
            deposited by Lessee, the other funds deposited by Lessee shall be
            used first. Lessee acknowledges that the specific conditions
            described above are reasonable.

            (d)   Prosecution of Claims for Casualty and Condemnation Proceeds.
      Lessee shall proceed promptly and diligently to prosecute in good faith
      the settlement or compromise of any and all claims for Casualty and
      Condemnation Proceeds; provided, however, that any settlement or
      compromise of any such claim shall, except as otherwise provided in clause
      (x) of Subparagraph 3.03(c), be subject to the written consent of Lessor
      and Required Participants, which consents shall not be unreasonably
      withheld. Lessor may participate in any proceedings relating to such
      claims, and, after the occurrence and during the continuance of any Event
      of Default, Lessor is hereby authorized, in its own name or in Lessee's
      name, to adjust any loss covered by insurance or any Casualty or
      Condemnation claim or cause of action, and to settle or compromise any
      claim or cause of action in connection therewith, and Lessee shall from
      time to time deliver to Lessor any and all further assignments and other
      instruments required to permit such participation.

            (e)   Assignment of Casualty and Condemnation Proceeds. Lessee
      hereby absolutely and irrevocably assigns to Lessor all Casualty and
      Condemnation Proceeds and all claims relating thereto. Except as otherwise
      provided in clause (x) of Subparagraph 3.03(c), Lessee agrees that all
      Casualty and Condemnation Proceeds are to be paid to Lessor and Lessee
      hereby authorizes and directs any insurer, Governmental 


                                      B-14
   139
      Authority or other Person responsible for paying any Casualty and
      Condemnation Proceeds to make payment thereof directly to Lessor alone,
      and not to Lessor and Lessee jointly. If Lessee receives any Casualty and
      Condemnation Proceeds payable to Lessor hereunder, Lessee shall promptly
      pay over such Casualty and Condemnation Proceeds to Lessor. Lessee hereby
      covenants that until such Casualty and Condemnation Proceeds are so paid
      over to Lessor, Lessee shall hold such Casualty and Condemnation Proceeds
      in trust for the benefit of Lessor and shall not commingle such Casualty
      and Condemnation Proceeds with any other funds or assets of Lessee or any
      other Person. Except as otherwise provided in clause (x) of Subparagraph
      3.03(c), Lessor may commence, appear in, defend or prosecute any assigned
      right, claim or action, and may adjust, compromise, settle and collect all
      rights, claims and actions assigned to Lessor, but shall not be
      responsible for any failure to collect any such right, claim or action,
      regardless of the cause of the failure.

            (f)   Use of Casualty and Condemnation Proceeds.

                  (i)   If (A) no Event of Default has occurred and is
            continuing, (B) Lessee exercises the repair and restoration option
            pursuant to Subparagraphs 3.04(b) and 3.04(c) and (C) Lessee
            complies with any conditions imposed pursuant to Subparagraph
            3.04(c); then Lessor shall release any Casualty and Condemnation
            Proceeds to Lessee for repair or restoration of the Property, but
            may condition such release and use of the Casualty and Condemnation
            Proceeds upon deposit of the Casualty and Condemnation Proceeds in a
            Repair and Restoration Account. Lessor shall have the option, upon
            the completion of such restoration of the Property, to apply any
            surplus Casualty and Condemnation Proceeds remaining after the
            completion of such restoration to the payment of Rent and/or the
            reduction of the Outstanding Lease Amount, notwithstanding that such
            amounts are not then due and payable or that such amounts are
            otherwise adequately secured.

                  (ii)  If (A) an Event of Default has occurred and is
            continuing, (B) Lessee fails to or is unable to comply with any
            conditions imposed pursuant to Subparagraph 3.04(c) or (C) Lessee
            elects to exercise the Term Purchase Option and purchase the
            Property pursuant to the Purchase Agreement; then, at the absolute
            discretion of Lessor and the Required Participants, regardless of
            any impairment of security or lack of impairment of security, but
            subject to applicable Governmental Rules governing use of Casualty
            and Condemnation Proceeds, if any, Lessor may (1) apply all or any
            of the Casualty and Condemnation Proceeds it receives to the
            expenses of Lessor Parties in obtaining such proceeds; (2) apply the
            balance to the payment of Rent and/or the reduction of the
            Outstanding Lease Amount, notwithstanding that such amounts are not
            then due and payable or that such amounts are otherwise adequately
            secured and/or (3) release all or any part of such proceeds to
            Lessee upon any conditions Lessor and the Required Participants may
            elect.


                                      B-15
   140
                  (iii) Lessor shall apply any Casualty and Condemnation
            Proceeds which are to be used to reduce the Outstanding Lease Amount
            only on the last day of a Rental Period unless a Default has
            occurred and is continuing.

                  (iv)  Application of all or any portion of the Casualty and
            Condemnation Proceeds, or the release thereof to Lessee, shall not
            cure or waive any Default or notice of default or invalidate any
            acts done pursuant to such notice.

      3.05. Taxes. Subject to Paragraph 3.12 relating to permitted contests,
Lessee shall promptly pay when due all Indemnified Taxes imposed on or payable
by Lessee or any Lessor Party in connection with the Property, this Agreement or
any of the other Operative Documents, or any of the transactions contemplated
hereby or thereby. As promptly as possible after any Indemnified Taxes are
payable by Lessee, Lessee shall send to Lessor for the account of the applicable
Lessor Party a certified copy of an original official receipt received by Lessee
showing payment thereof. If Lessee fails to pay any such Indemnified Taxes when
due to the appropriate taxing authority or fails to remit to Lessor the required
receipts or other required documentary evidence, Lessee shall indemnify the
Lessor Parties for any incremental taxes, interest or penalties that may become
payable by the Lessor Parties as a result of any such failure. The obligations
of Lessee under this Paragraph 3.05 shall survive the payment and performance of
the Lessee Obligations and the termination of this Agreement.

      3.06. Environmental Matters.

            (a)   Lessee's Covenants. Lessee shall not cause or permit Hazardous
      Materials to be used, generated, manufactured, stored, treated, disposed
      of, transported or present on or released or discharged from the Property
      in any manner that is reasonably likely to have a Material Adverse Effect.
      Lessee may use Hazardous Materials in connection with the operation of its
      business (or the business of permitted subtenants) so long as such use is
      consistent with the preceding sentence. Lessee shall immediately notify
      Lessor in writing of (i) the discovery of any Hazardous Materials on,
      under or about the Property; (ii) any knowledge by Lessee that the
      Property does not comply with any Environmental Laws; (iii) any claims
      against Lessee or the Property relating to Hazardous Materials or pursuant
      to Environmental Laws; and (iv) the discovery of any occurrence or
      condition on any real property adjoining or in the vicinity of the
      Property that could cause the Property or any part thereof to be
      designated as "border zone property" under the provisions of California
      Health and Safety Code Sections 25220 et seq. or any regulation adopted in
      accordance therewith. In response to the presence of any Hazardous
      Materials on, under or about the Property, Lessee shall immediately take,
      at Lessee's sole expense, all remedial action required by any
      Environmental Laws or any judgment, consent decree, settlement or
      compromise in respect to any claim based thereon.

            (b)   Inspection By Lessor. Upon reasonable prior notice to Lessee,
      Lessor, its employees and agents, may from time to time (whether before or
      after the commencement of a nonjudicial or judicial foreclosure
      proceeding), enter and inspect the Property for the purpose of determining
      the existence, location, nature and magnitude of 


                                      B-16
   141
      any past or present release or threatened release of any Hazardous
      Materials into, onto, beneath or from the Property.

            (c)   Indemnity. Without in any way limiting any other indemnity
      contained in this Agreement or any other Operative Document, Lessee agrees
      to defend, indemnify and hold harmless the Lessor Parties and the other
      Indemnitees from and against any claim, loss, damage, cost, expense or
      liability directly or indirectly arising out of (i) the use, generation,
      manufacture, storage, treatment, release, threatened release, discharge,
      disposal, transportation or presence of any Hazardous Materials which are
      found in, on, under or about the Property or (ii) the breach of any
      covenant, representation or warranty of Lessee relating to Hazardous
      Materials or Environmental Laws contained in this Agreement or any
      Operative Document. This indemnity shall include (A) the costs, whether
      foreseeable or unforeseeable, of any investigation, repair, cleanup or
      detoxification of the Property which is required by any Governmental
      Authority or is otherwise necessary to render the Property in compliance
      with all Environmental Laws; (B) all other direct or indirect
      consequential damages (including any third party claims, claims by any
      Governmental Authority, or any fines or penalties against the Indemnitees;
      and (C) all court costs and attorneys' fees (including expert witness fees
      and the cost of any consultants) paid or incurred by the Indemnitees.
      Lessee shall pay immediately upon Lessor's demand any amounts owing under
      this indemnity. Lessee shall use legal counsel reasonably acceptable to
      Lessor in any action or proceeding arising under this indemnity. The
      obligations of Lessee under this Subparagraph 3.06(c) shall survive the
      payment and performance of the Lessee Obligations and the termination of
      this Agreement.

            (d)   Legal Effect of Section. Lessee and Lessor agree that (i) this
      Paragraph 3.06 and clause (i) of Subparagraph 4.01(s) of the Participation
      Agreement are intended as Lessor's written request for information (and
      Lessee's response) concerning the environmental condition of the real
      property security as required by California Code of Civil Procedure
      Section 726.5 and (ii) each representation and warranty and covenant
      herein and therein (together with any indemnity applicable to a breach of
      any such representation and warranty) with respect to the environmental
      condition of the Property is intended by Lessor and Lessee to be an
      "environmental provision" for purposes of California Code of Civil
      Procedure Section 736.

      3.07. Liens, Easements, Etc.

            (a)   Lessee's Covenants. Subject to Paragraph 3.12 relating to
      permitted contests, Lessee shall not create, incur, assume or permit to
      exist any Lien or easement on or with respect to any of the Property of
      any character, whether now owned or hereafter acquired, except for the
      following ("Permitted Property Liens"):

                  (i)   Liens in favor of a Lessor Party securing the Lessee
            Obligations;

                  (ii)  Liens and easements in existence on the Commencement
            Date to the extent reflected in the title insurance policies
            delivered to Agent pursuant to 


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            Paragraphs 3.01 and 3.02 of and Schedules 3.01 and 3.02 to the
            Participation Agreement and approved by Lessor;

                  (iii) Liens and easements approved by Lessor and reflected in
            the title insurance policy or policies or binders to be delivered in
            connection with any Land added hereto after the date hereof;

                  (iv)  Liens for taxes or other Governmental Charges not at the
            time delinquent or thereafter payable without penalty;

                  (v)   Liens of carriers, warehousemen, mechanics, materialmen
            and vendors and other similar Liens imposed by law incurred in the
            ordinary course of business for sums not overdue; and

                  (vi)  Lessor Liens.

      Subject to Paragraph 3.12 relating to permitted contests, Lessee shall
      promptly (A) pay all Indebtedness of Lessee and other obligations prior to
      the time the non-payment thereof would give rise to a Lien on the Property
      and (B) discharge, at its sole cost and expense, any Lien on the Property
      which is not a Permitted Property Lien.


                                      B-18
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            (b)   No Consents. Nothing contained in this Agreement shall be
      construed as constituting the consent or request of any Lessor Party,
      express or implied, to or for the performance by any contractor, mechanic,
      laborer, materialman, supplier or vendor of any labor or services or for
      the furnishing of any materials for any construction, alteration,
      addition, repair or demolition of or to the Property or any part thereof.
      NOTICE IS HEREBY GIVEN THAT NO LESSOR PARTY IS OR SHALL BE LIABLE FOR ANY
      LABOR, SERVICES OR MATERIALS FURNISHED OR TO BE FURNISHED TO LESSEE, OR TO
      ANYONE HOLDING THE PROPERTY OR ANY PART THEREOF THROUGH OR UNDER LESSEE,
      AND THAT NO MECHANIC'S OR OTHER LIENS FOR ANY SUCH LABOR, SERVICES OR
      MATERIALS SHALL ATTACH TO OR AFFECT THE INTEREST OF ANY LESSOR PARTY IN
      AND TO THE PROPERTY.

      3.08. Subletting. Lessee may, in the ordinary course of business, sublease
the Property or any portion thereof to any Person, provided, that (a) Lessee
remains directly and primarily liable for performing its obligations under this
Agreement and all other Lessee Obligations; (b) each sublease is subject to and
subordinated to this Agreement; (c) each sublease has a term which expires on or
prior to the Scheduled Expiration Date (or, if longer, includes a provision that
the sublease terminates on the Expiration Date if such Expiration Date occurs
prior to the Scheduled Expiration Date unless Lessee purchases the Property on
the Expiration Date pursuant to the Purchase Agreement); (d) each sublease
prohibits the sublessee from engaging in any activities on the Property other
than those permitted by Paragraph 2.04; and (e) no sublease has a Material
Adverse Effect. Any sublease which does not satisfy each of the requirements of
the immediately preceding sentence shall be null and void as to the Lessor
Parties and their successor and assigns. Except for such permitted subleases,
Lessee shall not assign any of its rights or interests under this Agreement to
any other Person.

      3.09. Utility Charges. Lessee shall pay all charges for electricity,
power, gas, oil, water, telephone, sanitary sewer service and all other
utilities and services to, on or in connection with the Property during the
Term.

      3.10. Removal of Property. Lessee shall not remove any Improvements from
the Land or any other Property from the Land or Improvements, except that,
during the Term, Lessee may remove any Modification or any trade fixture,
machinery, equipment, inventory or other personal property if such Modification
or property (a) was not financed by an Advance, (b) is not required by any
applicable Governmental Rule or Insurance Requirement and (c) is readily
removable without impairing the value, utility or remaining useful life of the
Property.

      3.11. Compliance with Governmental Rules and Insurance Requirements.
Lessee, at its sole cost and expense, shall, unless its failure is not
reasonably likely to have a Material Adverse Effect, (a) comply, and cause its
agents, sublessees, assignees, employees, invitees, licensees, contractors and
tenants, and the Property to comply, with all Governmental Rules and Insurance
Requirements relating to the Property (including the construction, use,
operation, maintenance, repair and restoration thereof, whether or not
compliance therewith shall require structural or extraordinary changes in the
Improvements or interfere with the use and enjoyment of the Property), and (b)
procure, maintain and comply with all licenses, permits, orders, approvals,
consents and other authorizations required for the construction, use,
maintenance and 


                                      B-19
   144
operation of the Property and for the use, operation, maintenance, repair and
restoration of the Improvements.

      3.12. Permitted Contests. Lessee, at its sole cost and expense, may
contest any alleged Lien or easement on any of the Property or any alleged
Governmental Charge, Indebtedness or other obligation which is payable by Lessee
hereunder to Persons other than the Lessor Parties or which, if unpaid, would
give rise to a Lien on any of the Property, provided that (a) each such contest
is diligently pursued in good faith by appropriate proceedings; (b) the
commencement and continuation of such proceedings suspends the enforcement of
such Lien or easement or the collection of such Governmental Charge,
Indebtedness or obligation; (c) Lessee has established adequate reserves for the
discharge of such Lien or easement or the payment of such Governmental Charge,
Indebtedness or obligation in accordance with GAAP and, if the failure to
discharge such Lien or easement or the failure to pay such Governmental Charge,
Indebtedness or obligation might result in any civil liability for any Lessor
Party, Lessee has provided to such Lessor Party a bond or other security
satisfactory to such Lessor Party; (d) the failure to discharge such Lien or
easement or the failure to pay such Governmental Charge, Indebtedness or
obligation could not result in any criminal liability for any Lessor Party; (e)
the failure to discharge such Lien or easement or the failure to pay such
Governmental Charge, Indebtedness or obligation is not otherwise reasonably
likely to have a Material Adverse Effect; and (f) unless Lessee currently is
exercising either the Term Purchase Option or the Expiration Date Purchase
Option, any such contest is completed and such Lien or easement is discharged
(either pursuant to such proceedings or otherwise) or such Governmental Charge,
Indebtedness or obligation is declared invalid, paid or otherwise satisfied not
later than six (6) months prior to the Scheduled Expiration Date.

      3.13. Lessor Obligations; Right to Perform Lessee Obligations. No Lessor
Party shall have any obligation to (a) maintain, repair or make any improvements
to the Property, (b) maintain any insurance on the Property, (c) perform any
other obligation of Lessee under this Agreement or any other Lessee Obligation,
(d) make any expenditure on account of the Property (except to make Advances as
required by the Participation Agreement) or (e) take any other action in
connection with the Property, this Agreement or any other Operative Document,
except as expressly provided herein or in another Operative Document; provided
however, that Lessor may, in its sole discretion and without any obligation to
do so, perform any Lessee Obligation not performed by Lessee when required.
Lessor may enter the Property or exercise any other right of Lessee under this
Agreement or any other Operative Document to the extent Lessor determines in
good faith that such entry or exercise is reasonably necessary for Lessor to
perform any such Lessee Obligation not performed by Lessee when required. Lessee
shall reimburse Lessor and the other Lessor Parties, within five (5) Business
Days after demand, for all fees, costs and expenses incurred by them in
performing any such obligation or curing any Default.

      3.14. Inspection Rights. During the Term, Lessee shall permit any Person
designated by Lessor, upon reasonable notice and during normal business hours,
to visit and inspect any of the Property.

SECTION 4. EXPIRATION DATE.


                                      B-20
   145
      4.01. Termination by Lessee Prior to Scheduled Expiration Date. Subject to
the terms and conditions of the Purchase Agreement, Lessee may, at any time
prior to the Scheduled Expiration Date, terminate this Agreement and purchase
the Property pursuant to Section 2 of the Purchase Agreement. Lessee shall
notify Lessor of Lessee's election so to terminate this Agreement and purchase
the Property by delivering to Agent a Notice of Term Purchase Option Exercise
pursuant to and in accordance with the provisions of Paragraph 2.01 of the
Purchase Agreement.

      4.02. Surrender of Property. Unless Lessee purchases the Property on the
Expiration Date pursuant to the Purchase Agreement, Lessee shall vacate and
surrender the Property to Lessor on the Expiration Date in its then-current
condition, subject to compliance by Lessee on or prior to such date of its
obligations under this Agreement and the other Operative Documents (including
the completion of the New Improvements and all Modifications, the completion of
all permitted contests and the removal of all Liens which are not Permitted
Property Liens of the types described in clauses (i), (ii), (iii), (iv) and (vi)
of Subparagraph 3.07(a)).

      4.03. Holding Over. If Lessee does not purchase the Property on the
Expiration Date pursuant to the Purchase Agreement but continues in possession
of any portion of the Property after the Expiration Date, Lessee shall pay rent
for each day it so continues in possession, payable upon demand of Lessor, at a
per annum rate equal to the Alternate Rental Rate plus two percent (2.0%) and
shall pay and perform all of its other Lessee Obligations under this Agreement
and the other Operative Documents in the same manner as though the Term had not
ended; provided, however, that this Paragraph 4.03 shall not be interpreted to
permit such holding over or to limit any right or remedy of Lessor for such
holding over.

SECTION 5. DEFAULT.

      5.01. Events of Default. The occurrence or existence of any one or more of
the following shall constitute an "Event of Default" hereunder:

            (a)   Non-Payment. Lessee shall (i) fail to pay on the Expiration
      Date any amount payable by Lessee under this Agreement or any other
      Operative Document on or prior to such date, (ii) fail to pay within five
      (5) business days after any Scheduled Rent Payment Date any Base Rent
      payable on such Scheduled Rent Payment Date (other than the Base Rent
      payable on the Expiration Date) or (iii) fail to pay within thirty (30)
      days after the same becomes due, any Supplemental Rent or other amount
      required under the terms of this Agreement or any other Operative Document
      (other than any such amount payable on the Expiration Date or Base Rent);
      or

            (b)   Specific Defaults. Lessee or any of its Subsidiaries shall
      fail to observe or perform any covenant, obligation, condition or
      agreement set forth in Subparagraph 3.01(d) hereof or in Paragraph 5.02 or
      Paragraph 5.03 of the Participation Agreement; or

            (c)   Other Defaults. Lessee or any of its Subsidiaries shall fail
      to observe or perform any other covenant, obligation, condition or
      agreement contained in this Agreement or any other Operative Document and
      such failure shall continue for a period 


                                      B-21
   146
      of thirty (30) days after written notice thereof from Lessor; provided,
      however, that, if such failure cannot reasonably be cured within such
      thirty (30) day period, such failure shall not constitute an Event of
      Default hereunder if Lessee (i) promptly commences to cure such failure
      within such thirty (30) day period, (ii) thereafter diligently pursues
      such cure to completion, and (iii) completes such cure not later than the
      earlier of (A) the Expiration Date, if Lessee is exercising the Marketing
      Option, and (B) one hundred and twenty days (120) days after Lessor's
      notice of such failure; or

            (d)   Representations and Warranties. Any representation, warranty,
      certificate, information or other statement (financial or otherwise) made
      or furnished by or on behalf of Lessee or any of its Subsidiaries to any
      Lessor Party in or in connection with this Agreement or any other
      Operative Document, or as an inducement to any Lessor Party to enter into
      this Agreement or any other Operative Document, shall be false, incorrect,
      incomplete or misleading in any material respect when made or furnished;
      or

            (e)   Cross-Default. (i) Lessee or any of its Subsidiaries shall
      fail to make any payment when due on account of any Indebtedness of such
      Person (other than the Lessee Obligations and trade payables) and such
      failure shall continue beyond any period of grace provided with respect
      thereto, if the amount of such Indebtedness exceeds $40,000,000 or the
      effect of such failure is to cause, or permit the holder or holders
      thereof to cause, Indebtedness of Lessee and its Subsidiaries (other than
      the Lessee Obligations) in an aggregate amount exceeding $40,000,000 to
      become due or (ii) Lessee or any of its Subsidiaries shall otherwise fail
      to observe or perform any agreement, term or condition contained in any
      agreement or instrument relating to any Indebtedness of such Person (other
      than the Lessee Obligations and trade payables), or any other event shall
      occur or condition shall exist, if the effect of such failure, event or
      condition is to cause, or permit the holder or holders thereof to cause,
      Indebtedness of Lessee and its Subsidiaries (other than the Lessee
      Obligations) in an aggregate amount exceeding $40,000,000 to become due
      (and/or to be secured by cash collateral); or

            (f)   Insolvency, Voluntary Proceedings. Lessee or any of its
      Material Subsidiaries shall (i) apply for or consent to the appointment of
      a receiver, trustee, liquidator or custodian of itself or of all or a
      substantial part of its property, (ii) be unable, or admit in writing its
      inability, to pay its debts generally as they mature, (iii) make a general
      assignment for the benefit of its or any of its creditors, (iv) be
      dissolved or liquidated in full or in part, (v) become insolvent (as such
      term may be defined or interpreted under any applicable statute), (vi)
      commence a voluntary case or other proceeding seeking liquidation,
      reorganization or other relief with respect to itself or its debts under
      any bankruptcy, insolvency or other similar law now or hereafter in effect
      or consent to any such relief or to the appointment of or taking
      possession of its property by any official in an involuntary case or other
      proceeding commenced against it, or (vi) take any action for the purpose
      of effecting any of the foregoing; or

            (g)   Involuntary Proceedings. Proceedings for the appointment of a
      receiver, trustee, liquidator or custodian of Lessee or any of its
      Material Subsidiaries or of all or a substantial part of the property
      thereof, or an involuntary case or other proceedings seeking liquidation,
      reorganization or other relief with respect to Lessee or any of its


                                      B-22
   147
      Material Subsidiaries or the debts thereof under any bankruptcy,
      insolvency or other similar law now or hereafter in effect shall be
      commenced and an order for relief entered or such proceeding shall not be
      dismissed or discharged within thirty (30) days of commencement; or

            (h)   Judgments. (i) One or more judgments, orders, decrees or
      arbitration awards requiring Lessee and/or its Subsidiaries to pay an
      aggregate amount of $40,000,000 or more (exclusive of amounts covered by
      insurance issued by an insurer not an Affiliate of Lessee and otherwise
      satisfying the requirements set forth in Subparagraph 3.03(b)) shall be
      rendered against Lessee and/or any of its Subsidiaries in connection with
      any single or related series of transactions, incidents or circumstances
      and the same shall not be satisfied, vacated or stayed for a period of
      thirty (30) consecutive days after issue or levy; (ii) any judgment, writ,
      assessment, warrant of attachment, tax lien or execution or similar
      process shall be issued or levied against a substantial part of the
      property of Lessee or any of its Subsidiaries and the same shall not be
      released, stayed, vacated or otherwise dismissed within thirty (30) days
      after issue or levy; or (iii) any other judgments, orders, decrees,
      arbitration awards, writs, assessments, warrants of attachment, tax liens
      or executions or similar processes which, alone or in the aggregate, are
      reasonably likely to have a Material Adverse Effect are rendered, issued
      or levied; or

            (i)   Operative Documents. Any Operative Document or any material
      term thereof shall cease to be, or be asserted by Lessee or any of its
      Subsidiaries not to be, a legal, valid and binding obligation of Lessee or
      any of its Subsidiaries enforceable in accordance with its terms; or

            (j)   ERISA. Any Reportable Event which constitutes grounds for the
      termination of any Employee Benefit Plan by the PBGC or for the
      appointment of a trustee by the PBGC to administer any Employee Benefit
      Plan shall occur, or any Employee Benefit Plan shall be terminated within
      the meaning of Title IV of ERISA or a trustee shall be appointed by the
      PBGC to administer any Employee Benefit Plan; or

            (k)   Major Casualty or Condemnation. Any Major Casualty or Major
      Condemnation affecting the Property shall occur; or

            (l)   Change of Control. Any Change of Control shall occur;

Provided, however, that any such Event of Default (except any Event of Default
under Subparagraph 5.01(f) or Subparagraph 5.01(g)) shall be deemed cured and
shall cease to be an Event of Default hereunder if, prior to the time any Lessor
Party begins to exercise any of its rights and remedies for an Event of Default
under the Operative Documents, Lessee delivers to Lessor:

                        (A)   In the case of any Event of Default occurring
                  under Subparagraph 5.01(e), written evidence that the Persons
                  owing the applicable Indebtedness have made the required
                  payment in the case of a failure to pay and, in all cases
                  (including failure to pay), all holders of such Indebtedness
                  have waived (without the payment by the Persons owing such
                  Indebtedness of any waiver fee, penalty or other similar
                  payment or the provision by 


                                      B-23
   148
                  such Persons of additional collateral) such holders' rights to
                  cause such Indebtedness to become due (and/or to be secured by
                  cash collateral); and

                        (B)   In the case of all other Events of Default (except
                  Events of Default under Subparagraph 5.01(f) or Subparagraph
                  5.01(g)), written evidence that such Events of Default have
                  been cured.

      5.02. General Remedies. In all cases, upon the occurrence or existence of
any Event of Default and at any time thereafter unless such Event of Default is
waived, Lessor may, with the consent of the Required Participants, or shall,
upon instructions from the Required Participants, exercise any one or more of
the following rights and remedies (except that the remedy set forth in the first
sentence of Subparagraph 5.02(a) shall be automatic):

            (a)   Termination of Commitments. If such Event of Default is an
      Event of Default of the type described in Subparagraph 5.01(f) or
      Subparagraph 5.01(g) affecting Lessee, immediately and without notice the
      obligation of Lessor to make Advances and the obligations of the
      Participants to fund Advances shall automatically terminate. If such Event
      of Default is any other Event of Default, Lessor may by written notice to
      Lessee, terminate the obligation of Lessor to make Advances and the
      obligations of the Participants to fund Advances.

            (b)   Appointment of a Receiver. Lessor may apply to any court of
      competent jurisdiction for, and obtain appointment of, a receiver for the
      Property.

            (c)   Specific Performance. Lessor may bring an action in any court
      of competent jurisdiction to obtain specific enforcement of any of the
      covenants or agreements of Lessee in this Agreement or any of the other
      Operative Documents.

            (d)   Collection of Issues and Profits. Lessor may collect Issues
      and Profits as provided in Subparagraph 2.07(c) and apply the proceeds to
      pay Lessee Obligations.

            (e)   Protection of Property. Lessor may enter, take possession of,
      manage and operate all or any part of the Property or take any other
      actions which it reasonably determines are necessary to protect the
      Property and the rights and remedies of the Lessor Parties under this
      Agreement and the other Operative Documents, including (i) taking and
      possessing all of Lessee's books and records relating to the Property;
      (ii) entering into, enforcing, modifying, or canceling subleases on such
      terms and conditions as Lessor may consider proper; (iii) obtaining and
      evicting tenants; (iv) fixing or modifying sublease rents; (v) collecting
      and receiving any payment of money owing to Lessee; (vi) completing any
      unfinished Improvements; and/or (vii) contracting for and making repairs
      and alterations.

            (f)   Other Rights and Remedies. In addition to the specific rights
      and remedies set forth above in this Paragraph 5.02 and in Paragraph 5.03
      and Paragraph 5.04, Lessor may exercise any other right, power or remedy
      permitted to it by any applicable Governmental Rule, either by suit in
      equity or by action at law, or both.


                                      B-24
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      5.03. Lease Remedies. If the transaction evidenced by this Agreement and
the other Operative Documents is treated as a lease, upon the occurrence or
existence of any Event of Default and at any time thereafter unless such Event
of Default is waived, Lessor may, with the consent of the Required Participants,
or shall, upon instructions from the Required Participants, exercise any one or
more of the following rights and remedies in addition to those rights and
remedies set forth in Paragraph 5.02:

            (a)   Termination of Lease. Lessor may, by written notice to Lessee,
      terminate this Agreement on a Termination Date which is prior to the
      Scheduled Expiration Date, subject to Subparagraph 3.02(1) of the Purchase
      Agreement. Such Termination Date shall be the last day of a Rental Period
      unless Required Participants shall otherwise direct. On such Termination
      Date (which shall then be the Expiration Date), Lessee shall pay all
      unpaid Base Rent accrued through such date, all Supplemental Rent due and
      payable on or prior to such date and all other amounts payable by Lessee
      on the Expiration Date pursuant to this Agreement and the other Operative
      Documents. Lessee also shall pay to Lessor, in addition to all accrued
      Base Rent, the worth at the time of such payment of the amount by which
      the unpaid Base Rent through the Scheduled Expiration Date exceeds the
      amount of such rental loss for the same period that Lessee proves could
      reasonably be avoided.

            (b)   Continuation of Lease. Lessor may exercise the rights and
      remedies provided by California Civil Code Section 1951.4, including the
      right to continue this Agreement in effect after Lessee's breach and
      abandonment and recover Rent as it becomes due. Acts of maintenance or
      preservation, efforts to relet the Property, the appointment of a receiver
      upon Lessor's initiative to protect its interest under this Agreement or
      withholding consent to or terminating a sublease shall not of themselves
      constitute a termination of Lessee's right to possession.

            (c)   Removal and Storage of Property. Lessor may enter the Property
      and remove therefrom all Persons and property, store such property in a
      public warehouse or elsewhere at the cost of and for the account of Lessee
      and sell such property and apply the proceeds therefrom pursuant to
      applicable California law.

      5.04. Loan Remedies. If the transaction evidenced by this Agreement and
the other Operative Documents is treated as a loan, upon the occurrence or
existence of any Event of Default and at any time thereafter unless such Event
of Default is waived, Lessor may, with the consent of the Required Participants,
or shall, upon instructions from the Required Participants, exercise any one or
more of the following rights and remedies in addition to those rights and
remedies set forth in Paragraph 5.02:

            (a)   Acceleration of Lessee Obligations. Lessor may, by written
      notice to Lessee, terminate this Agreement on a Termination Date which is
      prior to the Scheduled Expiration Date, subject to Subparagraph 3.02(1) of
      the Purchase Agreement, and declare all unpaid Lessee Obligations due and
      payable on such Termination Date. Such Termination Date shall be the last
      day of a Rental Period unless Required Participants shall otherwise
      direct. On such Termination Date (which shall then be the Expiration
      Date), Lessee shall pay all unpaid Base Rent accrued through such date,
      all Supplemental 


                                      B-25
   150
      Rent due and payable on or prior to such date and all other amounts
      payable by Lessee on the Expiration Date pursuant to this Agreement and
      the other Operative Documents.

            (b)   Uniform Commercial Code Remedies. Lessor may exercise any or
      all of the remedies granted to a secured party under the California
      Uniform Commercial Code.

            (c)   Judicial Foreclosure. Lessor may bring an action in any court
      of competent jurisdiction to foreclose the security interest in the
      Property granted to Lessor by this Agreement or any of the other Operative
      Documents.

            (d)   Power of Sale. Lessor may cause some or all of the Property,
      including any Personal Property Collateral, to be sold under a power of
      sale or otherwise disposed of in any combination and in any manner
      permitted by applicable Governmental Rules.

                  (i)   Sales of Personal Property. Lessor may dispose of any
            Personal Property Collateral separately from the sale of Real
            Property Collateral, in any manner permitted by Division 9 of the
            California Uniform Commercial Code, including any public or private
            sale, or in any manner permitted by any other applicable
            Governmental Rule. Any proceeds of any such disposition shall not
            cure any Event of Default or reinstate any Lessee Obligation for
            purposes of Section 2924c of the California Civil Code. In
            connection with any such sale or other disposition, Lessee agrees
            that the following procedures constitute a commercially reasonable
            sale:

                        (A)   Lessor shall mail written notice of the sale to
                  Lessee not later than thirty (30) days prior to such sale.

                        (B)   Once per week during the three (3) weeks
                  immediately preceding such sale, Lessor will publish notice of
                  the sale in a local daily newspaper of general circulation.

                        (C)   Upon receipt of any written request, Lessor will
                  make the Property available to any bona fide prospective
                  purchaser for inspection during reasonable business hours.

                        (D)   Notwithstanding, Lessor shall be under no
                  obligation to consummate a sale if, in its judgment, none of
                  the offers received by it equals the fair value of the
                  Property offered for sale.

                        (E)   If Lessor so requests, Lessee shall assemble all
                  of the Personal Property Collateral and make it available to
                  Lessor at the site of the Land. Regardless of any provision of
                  this Agreement or any other Operative Document, Lessor shall
                  not be considered to have accepted any property other than
                  cash or immediately available funds in satisfaction of any
                  Lessee Obligation, unless Lessor has given express written
                  notice of its election of that remedy in accordance with
                  California Uniform Commercial Code Section 9505.


                                      B-26
   151
                  The foregoing procedures do not constitute the only procedures
                  that may be commercially reasonable.


                                      B-27
   152
                  (ii)  Lessor's Sales of Real Property or Mixed Collateral.
            Lessor may choose to dispose of some or all of the Property which
            consists solely of Real Property Collateral in any manner then
            permitted by applicable Governmental Rules, including without
            limitation a nonjudicial trustee's sale pursuant to California Civil
            Code ss.ss. 2924 et seq. In its discretion, Lessor may also or
            alternatively choose to dispose of some or all of the Property, in
            any combination consisting of both Real Property Collateral and
            Personal Property Collateral, together in one sale to be held in
            accordance with the law and procedures applicable to real property,
            as permitted by Section 9501(4) of the California Uniform Commercial
            Code. Lessee agrees that such a sale of Personal Property Collateral
            together with Real Property Collateral constitutes a commercially
            reasonable sale of the Personal Property Collateral. (For purposes
            of this power of sale, either a sale of Real Property Collateral
            alone, or a sale of both Real Property Collateral and Personal
            Property Collateral together in accordance with California Uniform
            Commercial Code Section 9501(4), will sometimes be referred to as a
            "Lessor's Sale.")

                        (A)   Before any Lessor's Sale, Lessor shall give such
                  notice of default and election to sell as may then be required
                  by applicable Governmental Rules.

                        (B)   When all time periods then legally mandated have
                  expired, and after such notice of sale as may then be legally
                  required has been given, Lessor shall sell the property being
                  sold at a public auction to be held at the time and place
                  specified in the notice of sale.

                        (C)   Neither Lessor nor Agent shall have any obligation
                  to make demand on Lessee before any Lessor's Sale.

                        (D)   From time to time in accordance with then
                  applicable law, Lessor may postpone any Lessor's Sale by
                  public announcement at the time and place noticed for that
                  sale.

                        (E)   At any Lessor's Sale, Lessor shall sell to the
                  highest bidder at public auction for cash in lawful money of
                  the United States.

                        (F)   Lessor shall execute and deliver to the
                  purchaser(s) a deed or deeds conveying the Property being sold
                  without any covenant or warranty whatsoever, express or
                  implied. The recitals in any such deed of any matters or
                  facts, including any facts bearing upon the regularity or
                  validity of any Lessor's Sale, shall be conclusive proof of
                  their truthfulness. Any such deed shall be conclusive against
                  all Persons as to the facts recited in it.

            (e)   Foreclosure Sales.

                  (i)   Single or Multiple. If the Property consists of more
            than one lot, parcel or item of property, Lessor may:


                                      B-28
   153
                        (A)   Designate the order in which the lots, parcels
                  and/or items shall be sold or disposed of or offered for sale
                  or disposition; and

                        (B)   Elect to dispose of the lots, parcels and/or items
                  through a single consolidated sale or disposition to be held
                  or made under the power of sale granted in Subparagraph
                  5.04(d), or in connection with judicial proceedings, or by
                  virtue of a judgment and decree of foreclosure and sale; or
                  through two or more such sales or dispositions; or in any
                  other manner Lessor may deem to be in its best interests (any
                  such sale or disposition, a "Foreclosure Sale;" any two or
                  more, "Foreclosure Sales").

            If Lessor chooses to have more than one Foreclosure Sale, Lessor at
            its option may cause the Foreclosure Sales to be held simultaneously
            or successively, on the same day, or on such different days and at
            such different times and in such order as it may deem to be in its
            best interests. No Foreclosure Sale shall terminate or affect the
            security interests granted to Lessor in the Property by this
            Agreement on any part of the Property which has not been sold, until
            all of the Lessee Obligations have been paid in full.

                  (ii)  Credit Bids. At any Foreclosure Sale, any Person,
            including any Lessor Party, may bid for and acquire the Property or
            any part of it to the extent permitted by then applicable
            Governmental Rules. Instead of paying cash for that property, Lessor
            may settle for the purchase price by crediting the sales price of
            the Property against the Lessee Obligations in any order and
            proportions as Lessor in its sole discretion may choose.

      5.05. Remedies Cumulative. The rights and remedies of Lessor under this
Agreement and the other Operative Documents are cumulative and may be exercised
singularly, successively, or together.

      5.06. No Cure or Waiver. Neither the performance by Lessor of any of
Lessee's obligations pursuant to Paragraph 3.13 nor the exercise by Lessor of
any of its other rights and remedies under this Agreement or any other Operative
Document (including the collection of Issues and Profits and the application
thereof to the Lessee Obligations) shall constitute a cure or waiver of any
Default or nullify the effect of any notice of default or sale, unless and until
all Lessee Obligations are paid in full.

      5.07. Exercise of Rights and Remedies. The rights and remedies provided to
Lessor under this Agreement may be exercised by Lessor itself, by Agent pursuant
to Subparagraph 2.02(c) of the Participation Agreement, by a court-appointed
receiver or by any other Person appointed by any of the foregoing to act on its
behalf. All of the benefits afforded to Lessor under this Agreement and the
other Operative Documents shall accrue to the benefit of Agent to the extent
provided in Subparagraph 2.02(c) of the Participation Agreement.

SECTION 6. MISCELLANEOUS.

      6.01. Notices. Except as otherwise specified herein, all notices,
requests, demands, consents, instructions or other communications to or upon
Lessee or Lessor under this 


                                      B-29
   154
Agreement shall be given as provided in Subparagraph 2.02(c) and Paragraph 7.01
of the Participation Agreement.

      6.02. Waivers; Amendments. Any term, covenant, agreement or condition of
this Agreement may be amended or waived only as provided in the Participation
Agreement. No failure or delay by any Lessor Party in exercising any right
hereunder shall operate as a waiver thereof or of any other right nor shall any
single or partial exercise of any such right preclude any other further exercise
thereof or of any other right. Unless otherwise specified in any such waiver or
consent, a waiver or consent given hereunder shall be effective only in the
specific instance and for the specific purpose for which given.

      6.03. Successors and Assigns. This Agreement shall be binding upon and
inure to the benefit of the Lessor Parties and Lessee and their permitted
successors and assigns; provided, however, that the Lessor Parties and Lessee
shall not sell, assign or delegate their respective rights and obligations
hereunder except as provided in the Participation Agreement.

      6.04. No Third Party Rights. Nothing expressed in or to be implied from
this Agreement is intended to give, or shall be construed to give, any Person,
other than the Lessor Parties and Lessee and their permitted successors and
assigns, any benefit or legal or equitable right, remedy or claim under or by
virtue of this Agreement or under or by virtue of any provision herein.

      6.05. Partial Invalidity. If at any time any provision of this Agreement
is or becomes illegal, invalid or unenforceable in any respect under the law or
any jurisdiction, neither the legality, validity or enforceability of the
remaining provisions of this Agreement nor the legality, validity or
enforceability of such provision under the law of any other jurisdiction shall
in any way be affected or impaired thereby.

      6.06. Governing Law. This Agreement shall be governed by and construed in
accordance with the laws of the State of California without reference to
conflicts of law rules.

      6.07. Counterparts. This Agreement may be executed in any number of
identical counterparts, any set of which signed by all the parties hereto shall
be deemed to constitute a complete, executed original for all purposes.

      6.08. Nature of Lessee's Obligations.

            (a)   Independent Obligation. The obligation of Lessee to pay the
      amounts payable by Lessee under this Agreement and the other Operative
      Documents and to perform the other Lessee Obligation are absolute,
      unconditional and irrevocable obligations which are separate and
      independent of the obligations of the Lessor Parties under this Agreement
      and the other Operative Documents and all other events and circumstances,
      including the events and circumstances set forth in Subparagraph 6.08(c).

            (b)   No Termination or Abatement. This Agreement and the other
      Operative Documents and Lessee's obligation to pay Rent and to pay and
      perform all other Lessee Obligations shall continue in full force and
      effect without abatement notwithstanding the 


                                      B-30
   155
      occurrence or existence of any event or circumstance, including any event
      or circumstance set forth in Subparagraph 6.08(c).

            (c)   Full Payment and Performance. Lessee shall make all payments
      under this Agreement and the other Operative Documents in the full amounts
      and at the times required by the terms of this Agreement and the other
      Operative Documents without setoff, deduction or reduction of any kind and
      shall perform all other Lessee Obligations as and when required, without
      regard to any event or circumstances whatsoever, including (i) the
      condition of the Property (including any Improvements to the Property made
      prior to the Commencement Date or during the Term); (ii) title to the
      Property (including possession of the Property by any Person or the
      existence of any Lien or any other right, title or interest in or to any
      of the Property in favor of any Person); (iii) the value, habitability,
      usability, design, operation or fitness for use of the Property; (iv) the
      availability or adequacy of utilities and other services to the Property;
      (v) any latent, hidden or patent defect in the Property; (vi) the zoning
      or status of the Property or any other restrictions on the use of the
      Property; (g) the economics of the Property; (vii) any Casualty or
      Condemnation; (viii) the compliance of the Property with any applicable
      Governmental Rule or Insurance Requirement; (ix) any failure by any Lessor
      Party to perform any of its obligations under this Agreement or any other
      Operative Document; or (x) the exercise by any Lessor Party of any of its
      remedies under this Agreement or any other Operative Document; provided,
      however, that this Paragraph 6.08 shall not abrogate any right which
      Lessee may have to recover damages from any Lessor Party for any material
      breach by such Lessor Party of its obligations under this Agreement or any
      other Operative Document to the extent permitted hereunder or thereunder.


                          [The signature page follows.]


                                      B-31
   156
      IN WITNESS WHEREOF, Lessee and Lessor have caused this Agreement to be
executed as of the day and year first above written.

LESSEE:                                KLA-TENCOR CORPORATION


                                       By:______________________________________
                                          Name:_________________________________
                                          Title:________________________________


LESSOR:                                LEASE PLAN U.S.A., INC.


                                       By:______________________________________
                                          Name:_________________________________
                                          Title:________________________________


                                      B-32
   157
STATE OF CALIFORNIA         )
                            )        ss
COUNTY OF __________________)


      On _____________, 1997, before me, ___________________ a Notary Public in
and for the State of California, personally appeared , personally known to me
(or proved to me on the basis of satisfactory evidence) to be the person(s)
whose name(s) is/are subscribed to the within instrument and acknowledged to me
that he/she/they executed the same in his/her/their authorized capacity(ies),
and that by his/her/their signature(s) on the instrument the person(s) or the
entity on behalf of which the person(s) acted, executed the instrument.

      Witness my hand and official seal.




[SEAL]

      ____________________________________________


                                      B-33
   158
STATE OF CALIFORNIA         )
                            )        ss
COUNTY OF __________________)


      On _____________, 1997, before me, ___________________ a Notary Public in
and for the State of California, personally appeared , personally known to me
(or proved to me on the basis of satisfactory evidence) to be the person(s)
whose name(s) is/are subscribed to the within instrument and acknowledged to me
that he/she/they executed the same in his/her/their authorized capacity(ies),
and that by his/her/their signature(s) on the instrument the person(s) or the
entity on behalf of which the person(s) acted, executed the instrument.

      Witness my hand and official seal.




[SEAL]

      ____________________________________________


                                      B-34
   159
                                    EXHIBIT A

                                      LAND


                                      B-35
   160
                                    EXHIBIT B

                                  RELATED GOODS


      The personal property, among other goods, conveyed by BNP Leasing
Corporation to Lease Plan U.S.A., Inc. by Bill of Sale, Assignment of Contract
Rights and Intangible Assets dated as of November 12, 1997 with respect to Tract
2 and Tract 3.


                                      B-36
   161
                                  EXHIBIT B(1)

                   SUPPLEMENT TO EXHIBIT B TO LEASE AGREEMENT


                                     [Date]


Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
      as Agent
Capital Markets-Syndication Group
1325 Avenue of the Americas, 9th Floor

New York, NY 10019
Attn: Linda Boardman


      1.    Reference is made to that certain Lease Agreement, dated as of
November 12, 1997 (the "Lease Agreement"), between KLA-Tencor Corporation
("Lessee") and Lease Plan U.S.A., Inc. ("Lessor").

      2.    Lessee hereby agrees that the description of "Related Goods" set
forth in Exhibit B to the Lease Agreement shall be supplemented by adding
thereto the Related Goods described in Attachment 1 hereto. Lessee hereby
accepts all such Related Goods and agrees that such Related Goods constitute
part of the Property subject to the Lease Agreement.

      IN WITNESS WHEREOF, Lessee has executed this Supplement to Exhibit B on
the date set forth above.

LESSEE:                                 KLA-TENCOR CORPORATION
                                        By:_____________________________________
                                           Name:________________________________
                                           Title:_______________________________


                                      B-37
   162
                                  ATTACHMENT 1
                                       TO
                             SUPPLEMENT TO EXHIBIT B


                                      B-38
   163
                                    EXHIBIT C

                        NOTICE OF RENTAL PERIOD SELECTION


                                     [Date]


Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
      as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY  10019
Attn:  Linda Boardman


      1.    Reference is made to that certain Participation Agreement, dated as
of November 12,1997 (the "Participation Agreement"), among KLA-Tencor
Corporation ("Lessee"), Lease Plan U.S.A., Inc. ("Lessor"), the financial
institutions listed in Schedule I to the Participation Agreement (the
"Participants") and ABN AMRO Bank N.V., as agent for the Participants (in such
capacity, "Agent"). Unless otherwise indicated, all terms defined in the
Participation Agreement have the same respective meanings when used herein.

      2.    [Insert one of the following as appropriate]

            [Pursuant to Subparagraph 2.03(a) of the Lease Agreement, Lessee
hereby irrevocably selects a new Rental Period for a Portion of the Outstanding
Lease Amount as follows:

            (a)   The Portion for which a new Rental Period is to be selected is
      the Portion in the amount of $__________ with a current Rental Period
      which began on ________, ____ and ends on __________, ____; and


                                      B-39
   164
            (b)   The next Rental Period for such Portion shall be __________
      month[s].]

            [Pursuant to Subparagraph 2.03(a) of the Lease Agreement, Lessee
hereby irrevocably elects to divide a Portion of the Outstanding Lease Amount
into further Portions as follows:

            (a)   The Portion which is to be divided is the Portion in the
      amount of $__________ with a current Rental Period which began on
      ________, ____ and ends on __________, ____; and

            (b)   On the last day of the current Rental Period for such Portion,
      such Portion is to be divided into the following Portions with the
      following initial Rental Periods:


                                      B-40
   165
                     Portion                           Rental Period  
                     -------                           -------------  

                  $___________                       _______ month[s]

                  $___________                       _______ month[s]

                  $___________                       _______ month[s]

                  $___________                       _______ month[s]]



            [Pursuant to Subparagraph 2.03(a) of the Lease Agreement, Lessee
hereby irrevocably elects to combine into a single Portion certain Portions of
the Outstanding Lease Amount as follows:

            (a)   The Portions which are to be combined are the Portions in the
      amounts of $__________, $_________ and $_______, each with a current
      Rental Period which ends on __________, ____; and

            (b)   The initial Rental Period for such newly created Portion shall
      be __________ month[s].]

      3.    Lessee hereby certifies to the Lessor Parties that, on the date of
this Acquisition Request and after giving effect to the use of the requested
Acquisition Advance[s] as described above:

            (a)   The representations and warranties of Lessee set forth in
      Paragraph 4.01 of the Participation Agreement and in the other Operative
      Documents are true and correct in all material respects as if made on such
      date (except for representations and warranties expressly made as of a
      specified date, which shall be true as of such date);

            (b)   No Default has occurred and is continuing; and

            (c)   All of the Operative Documents are in full force and effect.


                                      B-41
   166
            IN WITNESS WHEREOF, Lessee has executed this Acquisition Request on
      the date set forth above.


                                       KLA-TENCOR CORPORATION



                                       By: _______________________________
                                           Name: _________________________
                                           Title: ________________________


                                      B-42
   167
Recording requested by and                                        EXECUTION COPY

when recorded return to:

Thomas Y. Coleman, Esq.
Orrick, Herrington & Sutcliffe
Old Federal Reserve Bank Building
400 Sansome Street
San Francisco, California  94111



================================================================================

                                LEASE AGREEMENT,

              CONSTRUCTION DEED OF TRUST WITH ASSIGNMENT OF RENTS,

                      SECURITY AGREEMENT AND FIXTURE FILING


                                     BETWEEN


                             KLA-TENCOR CORPORATION


                                       AND


                             LEASE PLAN U.S.A., INC.




                                NOVEMBER 12, 1997


================================================================================

                    THIS LEASE IS NOT INTENDED TO CONSTITUTE
                      A TRUE LEASE FOR INCOME TAX PURPOSES
                              (SEE PARAGRAPH 2.06)


                                      B-43
   168

                                                                                                          
    SECTION 1.    INTERPRETATION.................................................................................2

         1.01.    Definitions....................................................................................2

         1.02.    Rules of Construction..........................................................................2

    SECTION 2.    BASIC PROVISIONS...............................................................................2

         2.01.    Lease of the Property..........................................................................2

         2.02.    Term...........................................................................................2

         2.03.    Rent...........................................................................................3

         2.04.    Use............................................................................................5

         2.05.    "As Is" Lease..................................................................................5

         2.06.    Nature of Transaction..........................................................................5

         2.07.    Security, Etc..................................................................................5

    SECTION 3.    OTHER LESSEE AND LESSOR RIGHTS AND OBLIGATIONS.................................................8

         3.01.    Maintenance, Repair, Etc.......................................................................8

         3.02.    Risk of Loss...................................................................................9

         3.03.    Insurance......................................................................................9

         3.04.    Casualty and Condemnation.....................................................................12

         3.05.    Taxes.........................................................................................15

         3.06.    Environmental Matters.........................................................................15

         3.07.    Liens, Easements, Etc.........................................................................16

         3.08.    Subletting....................................................................................17

         3.09.    Utility Charges...............................................................................18

         3.10.    Removal of Property...........................................................................18

         3.11.    Compliance with Governmental Rules and Insurance Requirements.................................18

         3.12.    Permitted Contests............................................................................18

         3.13.    Lessor Obligations; Right to Perform Lessee Obligations.......................................19

         3.14.    Inspection Rights.............................................................................19

    SECTION 4.    EXPIRATION DATE...............................................................................19

         4.01.    Termination by Lessee Prior to Scheduled Expiration Date......................................19

         4.02.    Surrender of Property.........................................................................19

         4.03.    Holding Over..................................................................................19



                                      B-44
   169

                                                                                                          
    SECTION 5.    DEFAULT.......................................................................................20

         5.01.    Events of Default.............................................................................20

         5.02.    General Remedies..............................................................................22

         5.03.    Lease Remedies................................................................................23

         5.04.    Loan Remedies.................................................................................24

         5.05.    Remedies Cumulative...........................................................................27

         5.06.    No Cure or Waiver.............................................................................27

         5.07.    Exercise of Rights and Remedies...............................................................27

    SECTION 6.    MISCELLANEOUS.................................................................................27

         6.01.    Notices.......................................................................................27

         6.02.    Waivers; Amendments...........................................................................27

         6.03.    Successors and Assigns........................................................................27

         6.04.    No Third Party Rights.........................................................................28

         6.05.    Partial Invalidity............................................................................28

         6.06.    Governing Law.................................................................................28

         6.07.    Counterparts..................................................................................28

         6.08.    Nature of Lessee's Obligations................................................................28


    EXHIBITS

         A        Land (2.01(a))

         B        Related Goods (2.01(d))

         C        Notice of Rental Period Selection (2.03(a))



                                      B-45
   170
                                    EXHIBIT C

                               PURCHASE AGREEMENT


      THIS PURCHASE AGREEMENT (this "Agreement" herein), dated as of November
12, 1997, is entered into by and between:

      (1)   KLA-TENCOR CORPORATION, a Delaware corporation ("Lessee"); and

      (2)   LEASE PLAN U.S.A., INC., a Georgia corporation ("Lessor").


                                    RECITALS

      A.    Lessee has requested Lessor and the financial institutions which are
"Participants" under the Participation Agreement referred to in Recital B below
(such financial institutions to be referred to collectively as the
"Participants") to provide to Lessee a certain lease facility. Pursuant to such
facility:

            (1)   Lessor would (a) acquire certain property designated by Lessee
      (either through purchase or lease), (b) lease to Lessee such property and
      certain other property currently held by Lessor, (c) appoint Lessee as
      Lessor's agent to make certain improvements to a portion of such property,
      (d) make advances to finance such improvements and to pay certain related
      expenses, and (e) grant to Lessee the right to purchase such property; and

            (2)   The Participants would participate in such lease facility by
      (a) funding the purchase prices and other advances to be made by Lessor
      and (b) acquiring participation interests in the rental and certain other
      payments to be made by Lessee.

      B.    Pursuant to a Participation Agreement dated of even date herewith
(the "Participation Agreement") among Lessee, Lessor, the Participants and ABN
AMRO Bank N.V., as agent for the Participants (in such capacity, "Agent"),
Lessor and the Participants have agreed to provide such lease facility upon the
terms and subject to the conditions set forth therein, including without
limitation the execution and delivery of this Agreement setting forth the terms
for the purchase of the Property by Lessee from Lessor.


                                    AGREEMENT

      NOW, THEREFORE, in consideration of the above Recitals and the mutual
covenants herein contained, the parties hereto hereby agree as follows:


                                      C-1
   171
SECTION 1. INTERPRETATION.

      1.01. Definitions. Unless otherwise indicated in this Agreement or any
other Operative Document, each term set forth in Schedule 1.01 to the
Participation Agreement, when used in this Agreement or any other Operative
Document, shall have the respective meaning given to that term in such Schedule
1.01 or in the provision of this Agreement or other document, instrument or
agreement referenced in such Schedule 1.01.

      1.02. Rules of Construction. Unless otherwise indicated in this Agreement
or any other Operative Document, the rules of construction set forth in Schedule
1.02 to the Participation Agreement shall apply to this Agreement and the other
Operative Documents.

SECTION 2. OPTIONAL PURCHASE BY LESSEE DURING THE TERM.

      2.01. Term Purchase Option. Subject to the terms and conditions of this
Agreement and the other Operative Documents (including those set forth below in
this Paragraph 2.01), Lessee may, at its option on any Business Day prior to the
Scheduled Expiration Date of the Lease Agreement, terminate the Lease Agreement
and purchase all of the Property (the "Term Purchase Option").

            (a)   Notice of Term Purchase Option Exercise. Lessee shall notify
      Lessor of Lessee's exercise of the Term Purchase Option by delivering to
      Lessor an irrevocable written notice in the form of Exhibit A(1),
      appropriately completed (the "Notice of Term Purchase Option Exercise"),
      which states that Lessee is exercising its right to terminate the Lease
      Agreement prior to the Scheduled Expiration Date thereof pursuant to
      Paragraph 4.01 of the Lease Agreement and purchase all of the Property
      pursuant to this Paragraph 2.01 and specifies the Business Day on which
      such termination and purchase are to occur (which date, after the delivery
      of such notice, shall be the Expiration Date). Lessee shall give the
      Notice of Term Purchase Option Exercise to Lessor at least one (1) month
      prior to the Business Day on which such termination and purchase are to
      occur. The Notice of Term Purchase Option Exercise shall be delivered as
      required by Subparagraph 2.02(c) and Paragraph 7.01 of the Participation
      Agreement; provided, however, that Lessee shall promptly deliver the
      original of any Notice of Term Purchase Option Exercise initially
      delivered by facsimile.

            (b)   Term Purchase Option Purchase Price. Lessee shall pay to
      Lessor on the Expiration Date, as the purchase price for the Property, an
      amount equal to the Outstanding Lease Amount on such date.

            (c)   Effect of Certain Events. Lessee may exercise the Term
      Purchase Option as provided in this Paragraph 2.01, notwithstanding (i)
      the prior election by Lessee to exercise the Partial Purchase Option
      pursuant to Paragraph 2.02, the Marketing Option pursuant to Paragraph
      3.01 and Paragraph 3.02 or the Expiration Date Purchase Option pursuant to
      Paragraph 3.01 and Paragraph 3.03, provided that Lessor completes the
      purchase of the Property pursuant to the Term Purchase Option and this
      Agreement prior 


                                      C-2
   172
      to the Scheduled Expiration Date and Lessor has not previously entered
      into an agreement with a Designated Purchaser or an Assignee Purchaser to
      sell the Property or (ii) the occurrence of any Event of Default or the
      exercise by the Lessor Parties of any of their rights or remedies under
      the Operative Documents following the occurrence of such Event of Default,
      provided that such exercise by Lessee of the Term Purchase Option after
      the occurrence of any Event of Default shall not require the Lessor
      Parties to cease exercising such rights and remedies unless and until
      Lessee completes the purchase of the Property pursuant to the Term
      Purchase Option and this Agreement.

      2.02. Partial Purchase Option. Subject to the terms and conditions of this
Agreement and the other Operative Documents (including those set forth below in
this Paragraph 2.02), Lessee may, at its option on any Business Day prior to the
Scheduled Expiration Date of the Lease Agreement, without terminating the Lease
Agreement, purchase one or more Tracts (but less than all) of the Property (the
"Partial Purchase Option").

            (a)   Notice of Partial Purchase Option Exercise. Lessee shall
      notify Lessor of Lessee's exercise of the Partial Purchase Option by
      delivering to Lessor an irrevocable written notice in the form of Exhibit
      A(2), appropriately completed (the "Notice of Partial Purchase Option
      Exercise"), which states that Lessee is exercising its right to purchase
      one or more (but less than all) Tracts of the Property prior to the
      Scheduled Expiration Date pursuant to this Paragraph 2.02 and specifies
      (i) the Tract(s) so to be purchased and (ii) the Business Day on which
      such purchase is to occur (a "Partial Purchase Date"). Lessee shall give
      each Notice of Partial Purchase Option Exercise to Lessor at least one (1)
      month prior to the Partial Purchase Date on which a purchase is to occur.
      Each Notice of Partial Purchase Option Exercise shall be delivered as
      required by Subparagraph 2.02(c) and Paragraph 7.01 of the Participation
      Agreement; provided, however, that Lessee shall promptly deliver the
      original of any Notice of Partial Purchase Option Exercise initially
      delivered by facsimile.

            (b)   Partial Purchase Option Purchase Price. Lessee shall pay to
      Lessor on each Partial Purchase Date, as the purchase price for each Tract
      of Property to be purchased on such date, an amount equal to the portion
      of the Outstanding Lease Amount on such date attributable to such Tract of
      Property.

            (c)   Conditions to Exercise of Partial Purchase Option. The
      purchase by Lessee on any Partial Purchase Date of any Tract of Property
      pursuant to this Paragraph 2.02 is subject to receipt by Lessor, on or
      prior to such Partial Purchase Date, of new Expiration Date Appraisals for
      all Tracts of Property that are to remain subject to the Lease Agreement
      after such Partial Purchase Date, which appraisals (i) each shall be dated
      a recent date prior to such Partial Purchase Date and (ii) together shall
      assess the aggregate Fair Market Value of all such remaining Tracts of
      Property at not less than the Outstanding Lease Amount that will remain
      after application of all amounts to be applied thereto on such Partial
      Purchase Date.


                                      C-3
   173
SECTION 3. OBLIGATIONS OF LESSEE ON THE EXPIRATION DATE.

      3.01. Alternative. Unless Lessee has exercised the Term Purchase Option,
on the Expiration Date of the Lease Agreement, Lessee shall either:

            (a)   Marketing Option. Cause another Person to complete the
      purchase of the Property pursuant to Paragraph 3.02 (the "Marketing
      Option"); or

            (b)   Expiration Date Purchase Option. Purchase the Property itself
      pursuant to Paragraph 3.03 (the "Expiration Date Purchase Option").

Lessee shall elect either the Marketing Option or the Expiration Date Purchase
Option by delivering to Lessor, not more than nine (9) months nor less than six
(6) months prior to the Scheduled Expiration Date for the Lease Agreement,
either (i) a written notice in the form of Exhibit B, appropriately completed
(the "Notice of Marketing Option Exercise"), or (ii) a written notice in the
form of Exhibit C, appropriately completed (the "Notice of Expiration Date
Purchase Option Exercise"); provided, however, that (A) Lessee shall be deemed
to have elected the Expiration Date Purchase Option if it fails to deliver
either notice as required by this sentence; (B) Lessee's election of the
Expiration Date Purchase Option (whether expressly by a notice so delivered or
implicitly by the failure to deliver any notice) shall be irrevocable; and (C)
Lessee may not elect the Marketing Option if (1) the Expiration Date has been
accelerated to an earlier Termination Date following a Marketing Option Event of
Default under the Lease Agreement or (2) the conditions set forth in Paragraph
3.04 of the Participation Agreement are not satisfied on the date Lessee
delivers its election notice or on the Expiration Date of the Lease Agreement
(unless, in each case, the only event or condition causing such conditions not
to be so satisfied is the occurrence of a Non-Marketing Option Event of Default
under the Lease Agreement). The Notice of Marketing Option Exercise or the
Notice of Expiration Date Purchase Option Exercise shall be delivered as
required by Subparagraph 2.02(c) and Paragraph 7.01 of the Participation
Agreement; provided, however, that Lessee shall promptly deliver to Lessor the
original of any such notice initially delivered by facsimile.

      3.02. Marketing Option.

            (a)   General. If Lessee elects to exercise the Marketing Option by
      delivering to Lessor a Notice of Marketing Option Exercise pursuant to
      Paragraph 3.01, Lessee shall (i) locate a purchaser which satisfies the
      requirements set forth in this Paragraph 3.02, (ii) arrange for such
      purchaser to purchase the Property on the Expiration Date for a purchase
      price which is not less than the lesser of (A) the sum of the total
      Tranche B Proportionate Share and the total Tranche C Proportionate Share
      of the Outstanding Lease Amount and (B) the Fair Market Value of the
      Property and (iii) otherwise comply, or cause compliance with, the
      requirements of this Paragraph 3.02 and the other applicable provisions of
      this Agreement.

            (b)   Lessee's Marketing Obligations.

                  (i)   Initial Marketing Period. During the period beginning on
            the date Lessee delivers the Notice of Marketing Option Exercise and
            ending on the date which is four (4) months prior to the Expiration
            Date of the Lease Agreement (the 


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            "Initial Marketing Period"), Lessee shall use reasonable efforts to
            solicit Conforming Bids from potential purchasers of the Property.
            On or prior to the last day of the Initial Marketing Period, Lessee
            shall deliver to Lessor any Conforming Bid selected by Lessee (the
            "Initial Bid"). If the purchase price specified in the Initial Bid
            is equal to or greater than the sum of the total Tranche B
            Proportionate Share and the total Tranche C Proportionate Share of
            the Outstanding Lease Amount, Lessor shall accept such bid and
            Lessee shall have no further obligations to solicit additional bids.

                  (ii)  Secondary Marketing Period. If Lessee does not submit an
            Initial Bid or if the purchase price specified in the Initial Bid is
            less than the sum of the total Tranche B Proportionate Share and the
            total Tranche C Proportionate Share of the Outstanding Lease Amount,
            Lessor may reject such bid and Lessee shall, during the period which
            begins on the day following the Initial Marketing Period and ends on
            the date two (2) months prior to the Expiration Date of the Lease
            Agreement (the "Secondary Marketing Period"):

                        (A)   Use its best efforts to solicit additional
                  Conforming Bids, including the engagement of experienced and
                  knowledgeable brokers;

                        (B)   Furnish to each Lessor Party copies of all bids
                  and otherwise provide each Lessor Party with such information
                  relating to the marketing of the Property as such Person may
                  reasonably request in writing;

                        (C)   Agree to provide to all potential purchasers all
                  customary seller's indemnities (including environmental
                  indemnities), representations and warranties regarding the
                  Property (including the title to, except for Lessor Liens, and
                  condition of the Property);

                        (D)   Furnish to each Lessor Party copies of
                  environmental reports, architect's certificates, licenses,
                  permits and other evidence reasonably requested by such Person
                  to establish that no Default has occurred and is continuing
                  under the Lease Agreement;

                        (E)   Permit any Lessor Party or potential purchaser to
                  inspect the Property and the maintenance records for the
                  Property upon reasonable prior written notice and during
                  normal business hours and provide to each such Person all
                  information regarding the Property reasonably requested by
                  such Person in writing;

                        (F)   Take all other commercially reasonable steps to
                  secure the best price for the Property; and

                        (G)   Submit to Lessor on or prior to the last day of
                  the Secondary Marketing Period any Conforming Bid selected by
                  Lessee with a purchase price which is equal to or greater than
                  the sum of the total Tranche B Proportionate Share and the
                  total Tranche C Proportionate  


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                  Share of the Outstanding Lease Amount or, if no such
                  Conforming Bid was received by Lessee, the highest Conforming
                  Bid received by Lessee during the Secondary Marketing Period.

            During the Secondary Marketing Period, any Lessor Party shall have
            the right to submit one or more bids or solicit bids from other
            Persons.

            (c)   Conforming Bids. Each bid must meet each of the following
      requirements (each such bid to be referred to herein as a "Conforming
      Bid"):

                  (i)   The bid may be submitted by any Person other than (A) a
            Person which is an Affiliate of Lessee or (B) a Person which has an
            agreement (whether express or implied) with Lessee or any of its
            Affiliates to sell, lease or otherwise make available to Lessee or
            any of its Affiliates any portion of the Property;

                  (ii)  The bidder must agree in writing to purchase the
            Property on the Expiration Date of the Lease Agreement for a
            purchase price to be paid in cash which is not less than the lesser
            of (A) the sum of the total Tranche B Proportionate Share and the
            total Tranche C Proportionate Share of the Outstanding Lease Amount
            on such date and (B) the Fair Market Value of the Property on such
            date;

                  (iii) The bidder must agree to purchase the Property "as is"
            without any representations, warranties or indemnities, except for
            (A) any representations, warranties or indemnities provided by
            Lessor and Lessee pursuant to Subparagraph 4.01(b) and (B) any
            representations, warranties or indemnities provided by Lessee
            pursuant to clause (ii)(C) of Subparagraph 3.02(b); and

                  (iv)  The bidder must agree to be bound by the other terms and
            conditions of this Agreement applicable to bidders.

            (d)   Lessor's Obligation to Accept Bids. If, at any time on or
      prior to the last day of the Secondary Marketing Period, Lessee submits to
      Lessor a Conforming Bid under this Paragraph 3.02 with a purchase price
      which is equal to or greater than the sum of the total Tranche B
      Proportionate Share and the total Tranche C Proportionate Share of the
      Outstanding Lease Amount, Lessor shall accept such bid. If Lessee submits
      to Lessor a Conforming Bid under this Paragraph 3.02 with a purchase price
      which is less than the sum of the total Tranche B Proportionate Share and
      the total Tranche C Proportionate Share of the Outstanding Lease Amount,
      Lessor shall not accept such bid unless so directed by Required
      Participants. If Lessee fails to submit a bid to Lessor on or prior to the
      last day of the Secondary Marketing Period which Lessor is so required to
      accept, Lessor shall retain the Property after the Expiration Date of the
      Lease Agreement; provided, however, that Lessee's payment obligations on
      such Expiration Date shall be limited to the amounts payable pursuant to
      clause (iii) of Subparagraph 4.06(a) if (i) Lessor retains the Property
      after Lessee submits a Conforming Bid on or prior to the last day of the
      Secondary Marketing Period in accordance with clause (ii) of Subparagraph
      3.02(b) and (ii) the Marketing Option has not terminated prior to such
      Expiration Date 


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      pursuant to Subparagraph 3.02(f). Lessor shall notify Lessee of Lessor's
      election to retain the Property by delivering to Lessee, at least ten (10)
      days prior to the Expiration Date of the Lease Agreement, a written notice
      of such election.

            (e)   Purchase Price. If Lessor accepts any bid by any Person, such
      Person (the "Designated Purchaser") shall pay to Lessor on the Expiration
      Date of the Lease Agreement, as the purchase price for the Property, the
      amount set forth in such bid as the purchase price.

            (f)   Termination of the Marketing Option. Lessee's right to
      exercise the Marketing Option shall immediately terminate and Lessee shall
      purchase the Property on the Expiration Date of the Lease Agreement
      pursuant to Paragraph 3.03 if (i) Lessee fails to comply with any of its
      obligations under this Paragraph 3.02; (ii) a Marketing Option Event of
      Default under the Lease Agreement occurs after Lessee delivers the Notice
      of Marketing Option Exercise; (iii) the conditions precedent set forth in
      Paragraph 3.04 of the Participation Agreement are not satisfied on the
      Expiration Date of the Lease Agreement (unless the only event or condition
      causing such conditions not to be so satisfied is the occurrence of a
      Non-Marketing Option Event of Default under the Lease Agreement); or (iv)
      the Designated Purchaser fails to consummate the purchase of the Property
      on the Expiration Date of the Lease Agreement in accordance with its
      accepted bid and this Agreement, without regard to the reason for such
      failure (except as otherwise provided in the following proviso); provided,
      however, that, if the Designated Purchaser fails to consummate the
      purchase of the Property on the Expiration Date solely due to Lessor's
      failure to remove Lessor Liens or deliver the required deed and bill of
      sale or other documents required to be delivered by Lessor hereunder,
      Lessee's right to exercise the Marketing Option shall not terminate,
      Lessee shall not be required to purchase the Property on the Expiration
      Date and Lessee's payment obligations on the Expiration Date shall be
      limited to the amounts set forth in clause (ii) of Subparagraph 4.06(a).

            (g)   Residual Value Guaranty Amount and Indemnity Amount. Unless
      Lessee's right to exercise the Marketing Option has terminated and Lessee
      is required to purchase the Property on the Expiration Date of the Lease
      Agreement pursuant to Paragraph 3.03, Lessee shall pay to Lessor on such
      Expiration Date the following:

                  (i)   An amount equal to the total Tranche A Proportionate
            Share of the Outstanding Lease Amount under on such date (the
            "Residual Value Guaranty Amount"); and

                  (ii)  An amount equal to the decrease, if any, between the
            Commencement Date and the Expiration Date of the Lease Agreement in
            the Fair Market Value of the Property caused by (A) any
            representation or warranty of Lessee or any of its Affiliates
            regarding the Property set forth in any of the Operative Documents
            proving to be false or inaccurate when made, (B) the existence of,
            or the failure of Lessee to pay any Governmental Charge,
            Indebtedness or other obligation which might give rise to, any Liens
            in the Property (other than Permitted Property Liens), (C) the
            failure of Lessee to complete any New Improvements or any
            Modifications or (D) any other failure of 


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            Lessee to comply with any of its obligations regarding the Property
            set forth in any of the Operative Documents (the "Indemnity
            Amount");

      Provided, however, that (A) Lessee shall not be obligated to pay any
      Residual Value Guaranty Amount or Indemnity Amount if the purchase price
      paid to Lessor equals or exceeds the Outstanding Lease Amount on such date
      and (B) the sum of any Residual Value Guaranty Amount and Indemnity Amount
      payable to Lessor on the Expiration Date of the Lease Agreement shall not
      exceed the deficiency, if any, between such Outstanding Lease Amount and
      such purchase price.

            (h)   Determination of Fair Market Value and Indemnity Amount. If
      the purchase price specified in the Initial Bid is less than the sum of
      the total Tranche B Proportionate Share and the total Tranche C
      Proportionate Share of the Outstanding Lease Amount, Lessor may, on or
      prior to the last day of the Secondary Marketing Period (if Lessee has not
      previously delivered to Lessor a Conforming Bid with a purchase price
      equal to or greater than the sum of the total Tranche B Proportionate
      Share and the total Tranche C Proportionate Share of the Outstanding Lease
      Amount), deliver to Lessee a written notice of Lessor's determination of
      the current Fair Market Value of the Property and the Indemnity Amount. To
      determine such amounts, Lessor shall obtain Appraisals of the Property
      which set forth:

                  (i)   A current Appraisal of the Fair Market Value of the
            Property in its then existing condition (the "Current Appraisal");
            and

                  (ii)  An Appraisal of the Fair Market Value of the Property
            which assumes that (A) all representations and warranties regarding
            the Property made by Lessee or any of its Affiliates in any of the
            Operative Documents were true and correct when made; (B) Lessee has
            maintained the Property in compliance with all applicable
            Governmental Rules, Insurance Requirements and the Operative
            Documents; (C) Lessee has completed all Modifications and any other
            New Improvements in a good and workmanlike manner and otherwise as
            required by the Operative Documents; (D) Lessee has repaired the
            Property as required by the Operative Documents following any
            Casualty; (E) Lessee has restored the Property as required by the
            Operative Documents following any Condemnation; (F) Lessee has paid
            all Governmental Charges, Indebtedness and other obligations which,
            if unpaid, might give rise to a Lien (other than a Lessor Lien) on
            the Property; (G) Lessee has removed all Liens on the Property
            except for Permitted Property Liens and Lessor Liens; and (H) Lessee
            has performed all of its other obligations as required by the
            Operative Documents (the "Assumed Appraisal").

      In the absence of manifest error, (A) the Current Appraisal shall
      constitute the current Fair Market Value of the Property and (B) the
      difference between the Current Appraisal and the Assumed Appraisal shall
      constitute the Indemnity Amount if the Current Appraisal is less than the
      Assumed Appraisal.


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            (i)   Lessee not an Agent. Lessee shall not be an agent for any of
      the Lessor Parties in arranging for a purchaser of the Property. No Lessor
      Party shall be bound by any acts of Lessee.

            (j)   Excess Proceeds. If, on the Expiration Date of the Lease
      Agreement, after the application by Lessor of all amounts received by
      Lessor on such date to the Outstanding Lease Amount, all unpaid Rent
      accrued through or due and payable on or prior to such date and all other
      amounts, if any, due and payable by Lessee under the Operative Documents
      on or prior to such date, any excess amount remains, Lessor shall pay such
      excess amount to Lessee.

            (k)   Creditworthiness of Designated Purchaser. Lessee assumes all
      responsibility for determining the creditworthiness of any potential
      purchaser on any bid submitted by Lessee to Lessor hereunder. If, after
      any purchase by a Designated Purchaser hereunder, the purchase price paid
      by such Designated Purchaser is recovered from any Lessor Party, Lessee
      shall reimburse such Lessor Party for such recovery unless such recovery
      is due solely to a material misrepresentation or covenant breach by such
      Lessor Party.

            (l)   Exercise of Marketing Option After Non-Marketing Option Event
      of Default. If Lessor notifies Lessee pursuant to Subparagraph 5.03(a) or
      Subparagraph 5.04(a) of the Lease Agreement that Lessor is terminating the
      Lease Agreement on a Termination Date which is prior to the Scheduled
      Expiration Date of the Lease Agreement and the only basis for such early
      termination is the occurrence of a Non-Marketing Option Event of Default,
      Lessee may, subject to Paragraph 3.01, elect to exercise the Marketing
      Option if, not later than ten (10) Business Days after it receives from
      Lessor such notice of early termination, it (i) delivers to Lessor a
      Notice of Marketing Option Exercise, (ii) delivers to Agent (A) a Cash
      Collateral Agreement in form and substance reasonably satisfactory to
      Lessor and Agent and (B) Cash Collateral in an amount not less than 105%
      of the total Tranche A Proportionate Share of the Outstanding Lease
      Amount, and (iii) delivers to Lessor an opinion in form and substance
      reasonably satisfactory to Lessor regarding the Cash Collateral Agreement
      and Lessor's security interest in such Cash Collateral and (iv) takes such
      other actions as may be necessary to grant to Agent first priority
      perfected security interests in such Cash Collateral in accordance with
      the Cash Collateral Agreement. Upon the delivery by Lessee to Lessor of a
      Notice of Marketing Option Exercise and satisfaction of the Cash
      Collateral requirements set forth in the preceding sentence of this
      Subparagraph 3.02(l), the Expiration Date of the Lease Agreement shall, if
      the conditions to the exercise of the Marketing Option set forth in
      Paragraph 3.01 are satisfied, be extended to the first Business Day that
      is six (6) months after the date of receipt by Lessor of such Notice of
      Marketing Option Exercise, provided, however, that in no event shall the
      Expiration Date of the Lease Agreement be extended beyond the Scheduled
      Expiration Date. Any exercise by Lessee of the Marketing Option pursuant
      to this Subparagraph 3.02(l) shall be subject to the terms and conditions
      otherwise set forth in this Agreement.

            (m)   Lessor's Obligation to Sell. If Lessor retains the Property
      after the Expiration Date for any reason under the Operative Documents
      without a judicial or non-


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      judicial foreclosure sale or a deed-in-lieu of foreclosure from Lessee,
      Lessor thereafter shall use commercially reasonable efforts to sell the
      Property in a reasonable time to one or more unrelated third parties for
      the Fair Market Value of the Property; provided, however that Lessor shall
      have no obligation to sell the Property at a time, or in a manner, that
      would adversely affect the Lessor Parties' ability to be paid in full the
      Outstanding Lease Amount, all other amounts payable to the Lessor Parties
      under the Operative Documents (including reasonable costs of maintaining,
      managing and selling the Property) and carrying costs for the Outstanding
      Lease Amount and such other amounts accruing at the Base Rate. Following
      such sale, Lessor shall pay to Lessee any amounts received by Lessor in
      excess of the amounts referred to in the proviso to the preceding
      sentence.

      3.03. Expiration Date Purchase Option.

            (a)   General. If (i) Lessee elects to exercise the Expiration Date
      Purchase Option by delivering to Lessor a Notice of Expiration Date
      Purchase Option Exercise pursuant to Paragraph 3.01; (ii) Lessee elects to
      exercise the Marketing Option by delivering to Lessor a Notice of
      Marketing Option Exercise pursuant to Paragraph 3.01 but the Marketing
      Option terminates pursuant to Subparagraph 3.02(f); or (iii) Lessee fails
      to deliver to Lessor either notice as required by Paragraph 3.01; Lessee
      shall purchase the Property on the Expiration Date of the Lease Agreement
      and otherwise comply, or cause compliance with, the requirements of this
      Paragraph 3.03 and the other applicable provisions of this Agreement.

            (b)   Purchase Price. Lessee shall pay to Lessor on the Expiration
      Date of the Lease Agreement, as the purchase price for the Property, an
      amount equal to the Outstanding Lease Amount under on such date.


SECTION 4. TERMS OF ALL PURCHASES.

      4.01. Representations and Warranties of Parties.

            (a)   Representations and Warranties of Certain Purchasers. Each
      Designated Purchaser shall represent and warrant to Lessor on the
      Expiration Date of the Lease Agreement (or, in the case of a purchase of a
      portion of the Property pursuant to the Partial Purchase Option, on the
      applicable Partial Purchase Date) as follows:

                  (i)   Such Person is a legal entity duly organized, validly
            existing and in good standing under the laws of its state of
            organization or an individual with legal capacity to purchase the
            Property (or, in the case of a purchase of a portion of the Property
            pursuant to the Partial Purchase Option, the portion to be
            purchased).

                  (ii)  The execution, delivery and performance by such Person
            of each document, instrument and agreement executed, or to be
            executed, by such Person in connection with its purchase of the
            Property (or, in the case of a purchase of a 


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            portion of the Property pursuant to the Partial Purchase Option, the
            portion to be purchased) (the "Purchase Documents") and the
            consummation of the transactions contemplated thereby (A) are within
            the power of such Person and (B) have been duly authorized by all
            necessary actions on the part of such Person.

                  (iii) Each Purchase Document executed, or to be executed, by
            such Person has been, or will be, duly executed and delivered by
            such Person and constitutes, or will constitute, a legal, valid and
            binding obligation of such Person, enforceable against such Person
            in accordance with its terms, except as limited by bankruptcy,
            insolvency or other laws of general application relating to or
            affecting the enforcement of creditors' rights generally and general
            principles of equity.

                  (iv)  Such Person has not (A) made a general assignment for
            the benefit of creditors, (B) filed any voluntary petition in
            bankruptcy or suffered the filing of any involuntary petition by
            such Person's creditors, (C) suffered the appointment of a receiver
            to take possession of all, or substantially all, of such Person 's
            assets, (D) suffered the attachment or other judicial seizure of
            all, or substantially all, of such Person 's assets, (E) admitted in
            writing its inability to pay its debts as they come due, or (F) made
            an offer of settlement, extension or composition to its creditors
            generally.

                  (v)   Such Person is not a "party in interest" within the
            meaning of Section 3(14) of the ERISA, with respect to any investor
            in or beneficiary of Lessor.

            (b)   Representations and Warranties of Lessor and Lessee. Each of
      Lessor and Lessee shall represent and warrant to each purchaser of the
      Property, whether Lessee, an Assignee Purchaser or a Designated Purchaser
      (a "Purchaser"), on the Expiration Date of the Lease Agreement as follows:

                  (i)   Such Person is a corporation duly organized, validly
            existing and in good standing under the laws of its state of
            incorporation.

                  (ii)  The execution, delivery and performance by such Person
            of each Purchase Document executed, or to be executed, by such
            Person and the consummation of the transactions contemplated thereby
            (A) are within the power of such Person and (B) have been duly
            authorized by all necessary actions on the part of such Person.

                  (iii) Each Purchase Document executed, or to be executed, by
            such Person has been, or will be, duly executed and delivered by
            such Person and constitutes, or will constitute, a legal, valid and
            binding obligation of such Person, enforceable against such Person
            in accordance with its terms, except as limited by bankruptcy,
            insolvency or other laws of general application relating to or
            affecting the enforcement of creditors' rights generally and general
            principles of equity.

                  (iv)  Such Person has not (A) made a general assignment for
            the benefit of creditors, (B) filed any voluntary petition in
            bankruptcy or suffered the filing of 


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            any involuntary petition by such Person's creditors, (C) suffered
            the appointment of a receiver to take possession of all, or
            substantially all, of such Person's assets, (D) suffered the
            attachment or other judicial seizure of all, or substantially all,
            of such Person's assets, (E) admitted in writing its inability to
            pay its debts as they come due, or (F) made an offer of settlement,
            extension or composition to its creditors generally.

      In addition to the foregoing, (A) Lessee shall represent and warrant to
      the Designated Purchaser (or Lessor if Lessor is to retain the Property)
      on the Expiration Date of the Lease Agreement that no Liens are attached
      to the Property, except for Permitted Property Liens, and (B) Lessor shall
      represent and warrant to Purchaser on the Expiration Date of the Lease
      Agreement (or, in the case of a purchase of a portion of the Property
      pursuant to the Partial Purchase Option, on the applicable Partial
      Purchase Date) that no Lessor Liens are attached to the Property (or, in
      the case of a purchase of a portion of the Property pursuant to the
      Partial Purchase Option, the portion to be purchased). Except for the
      foregoing representations and warranties to be made by Lessor on the
      Expiration Date of the Lease Agreement (or, in the case of a purchase of a
      portion of the Property pursuant to the Partial Purchase Option, on the
      applicable Partial Purchase Date), no Lessor Party shall make any
      representation or warranty regarding the Property or the sale of the
      Property. Lessee shall make such additional representations and warranties
      as it may be required to make pursuant to clause (ii) of Subparagraph
      3.02(b).

            (c)   Survival of Representations and Warranties. The
      representations and warranties of Purchaser, Lessor and Lessee shall
      survive for a period of twelve (12) months after the Expiration Date of
      the Lease Agreement (or, in the case of a purchase of a portion of the
      Property pursuant to the Partial Purchase Option, after the applicable
      Partial Purchase Date). Any claim which any such party may have at any
      time against any other such party for a breach of any such representation
      or warranty, whether known or unknown, which is not asserted by written
      notice within such twelve (12) month period shall not be valid or
      effective, and the party shall have no liability with respect thereto.

      4.02. "As Is" Purchase. All purchases of the Property hereunder shall be
"as is, with all faults" and without any representations, warranties or
indemnities except for any representations, warranties or indemnities provided
by Lessee pursuant to clause (ii)(C) of Subparagraph 3.02(b) or by Lessor or
Lessee pursuant to Subparagraph 4.01(b). Each Purchaser shall specifically
acknowledge and agree that Lessor is selling and such Purchaser is purchasing
the Property on an "as is, with all faults" basis and that such Purchaser is not
relying on any representations or warranties of any kind whatsoever, express or
implied, from any Lessor Party, its agents, or brokers as to any matters
concerning the Property (except for any representations and warranties provided
by Lessor pursuant to Subparagraph 4.01(b)), including (a) the condition of the
Property (including any Improvements to the Property made prior to the
Commencement Date or during the Term of the Lease Agreement); (b) title to the
Property (including possession of the Property by any Person or the existence of
any Lien or any other right, title or interest in or to any of the Property in
favor of any Person); (c) the value, habitability, usability, design, operation
or fitness for use of the Property; (d) the availability or adequacy of
utilities and other services to the Property; (e) any latent, hidden or patent
defect in the Property; (f) the zoning or 


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status of the Property or any other restrictions on the use of the Property; (g)
the economics of the Property; (h) any Casualty or Condemnation; or (i) the
compliance of the Property with any applicable Governmental Rule or Insurance
Requirement.

      4.03. Release. Without limiting the foregoing, each Purchaser shall, on
behalf of itself and its successors and assigns, waive its right to recover
from, and forever release and discharge, Lessor and the other Indemnitees from
any and all demands, claims, legal or administrative proceedings, losses,
liabilities, damages, penalties, fines, liens, judgments, costs or expenses
whatsoever (including attorneys' fees and costs), whether direct or indirect,
known or unknown, foreseen or unforeseen, that may arise on account of or in any
way be connected with the physical condition of the Property or any Governmental
Rule applicable thereto, including any Environment Law. Each Purchaser shall
expressly waive the benefits of Section 1542 of the California Civil Code, which
provides that, "a general release does not extend to claims which the creditor
does not know or expect to exist in his favor at the time of executing the
release, which if known to him must have materially affected the settlement with
the debtor."

      4.04. Permits, Approvals, Etc. Lessee shall obtain all permits, licenses
and approvals from and make all filings with Governmental Authorities and other
Persons, comply and cause compliance with all applicable Governmental Rules and
take all other actions required for the marketing, purchase and sale of the
Property.

      4.05. Costs. Lessee shall pay directly, without deduction from the
purchase price or any other amount payable to Lessor hereunder, all costs and
expenses of Lessee and Lessor associated with the marketing and sale of the
Property, including brokers' fees and commissions; title insurance premiums;
survey charges; utility, tax and other prorations; fees and expenses of
environmental consultants and attorneys; appraisal costs; escrow fees; recording
fees; documentary, transfer and other taxes; and all other fees, costs and
expenses which might otherwise be deducted from the purchase price or any other
amount payable to the Lessor Parties hereunder.

      4.06. Lessee's Expiration Date and Partial Purchase Date Payment
Obligations.

            (a)   Expiration Date. On the Expiration Date of the Lease
      Agreement, Lessee shall pay to Lessor the following:

                  (i)   Purchase by Lessee. If the Property is to be purchased
            by Lessee or an Assignee Purchaser on such date, (i) the purchase
            price payable by Lessee, (ii) all unpaid Rent accrued through or due
            and payable on or prior to such date and (iii) all other amounts, if
            any, due and payable by Lessee under the Operative Documents on or
            prior to such date;

                  (ii)  Purchase by a Designated Purchaser. If the Property is
            to be purchased by a Designated Purchaser on such date, (i) the
            Residual Value Guaranty Amount (subject to the provisos set forth at
            the end of Subparagraph 3.02(g)), (ii) the Indemnity Amount (subject
            to the provisos set forth at the end of Subparagraph 3.02(g)), (iii)
            all unpaid Rent accrued through or due and payable 


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            on or prior to such date and (iv) all other amounts, if any, due and
            payable by Lessee under the Operative Documents on or prior to such
            date; or

                  (iii) Retention by Lessor. If the Property is to be retained
            by Lessor on such date pursuant to Subparagraph 3.02(d), (i) the
            Residual Value Guaranty Amount, (ii) the Indemnity Amount, (iii) all
            unpaid Rent accrued through or due and payable on or prior to such
            date and (iv) all other amounts, if any, due and payable by Lessee
            under the Operative Documents on or prior to such date.

            (b)   Partial Purchase Date. On any Partial Purchase Date, Lessee
      shall pay to Lessor (i) the purchase price for the Tracts of Property to
      be purchased on such date, (ii) all unpaid Rent attributable to such
      Tracts of Property accrued through or due and payable on or prior to such
      date and (iii) all other amounts attributable to such Tracts of Property ,
      if any, due and payable by Lessee under the Operative Documents on or
      prior to such date.

      4.07. Lessor Liens. Lessor shall remove all Lessor Liens from the Property
before the Expiration Date of the Lease Agreement (or, in the case of a purchase
of a portion of the Property pursuant to the Partial Purchase Option, from the
portion to be purchased before the applicable Partial Purchase Date).

      4.08. Transfer Documents.

            (a)   Expiration Date.

                  (i)   Lessor. Subject to receipt by Lessor on the Expiration
            Date of the Lease Agreement of the full amount of the following,
            without any setoff, deduction or reduction of any kind:

                        (A)   In the case of a transfer to Lessee or an Assignee
                  Purchaser, all amounts payable by Lessee pursuant to clause
                  (i) of Subparagraph 4.06(a); or

                        (B)   In the case of a transfer to a Designated
                  Purchaser, (1) the purchase price payable by the Designated
                  Purchaser and (2) all amounts payable by Lessee pursuant to
                  clause (ii) of Subparagraph 4.06(a);

            Lessor shall transfer its interest in the Property to Purchaser on
            the Expiration Date of the Lease Agreement (unless Lessor is to
            retain the Property) by executing and delivering to Purchaser a Deed
            in substantially the form of Exhibit D-1, an Acknowledgment of
            Disclaimer of Representations and Warranties in substantially the
            form of Exhibit D-2, a Bill of Sale in substantially the form of
            Exhibit E and such other documents, instruments and agreements as
            such Person may reasonably request.

                  (ii)  Lessee. On the Expiration Date of the Lease Agreement,
            unless Lessee is to purchase the Property, Lessee shall transfer its
            interest in the Property to the Designated Purchaser or the Assignee
            Purchaser (or Lessor if Lessor is to 


                                      C-14
   184
            retain the Property pursuant to Paragraph 3.02(d)) by executing and
            delivering to such Person a Deed in substantially the form of
            Exhibit F, a Bill of Sale in substantially the form of Exhibit G and
            such other documents, instruments and agreements as such Person may
            reasonably request.

            (b)   Partial Purchase Date. Subject to receipt by Lessor on any
      Partial Purchase Date of all amounts payable by Lessee pursuant to
      Subparagraph 4.06(b), without any setoff, deduction or reduction of any
      kind, Lessor shall transfer its interest in the Tracts of Property to be
      purchased on such date to Lessee by executing and delivering to Lessee a
      Deed in substantially the form of Exhibit D, a Bill of Sale in
      substantially the form of Exhibit E and such other documents, instruments
      and agreements as Lessee may reasonably request

      4.09. Casualty and Condemnation Proceeds. If, on the Expiration Date of
the Lease Agreement, any Casualty and Condemnation Proceeds are held by Lessor
in a Repair and Restoration Account or otherwise, Lessor shall (a) if Lessee is
to purchase the Property on the Expiration Date of the Lease Agreement and
Lessee shall so direct, apply such proceeds to the purchase price to be paid by
Lessee or (b) in all other cases, release such proceeds to Lessee; provided,
however, that Lessor shall not have any obligation so to apply or release such
proceeds unless Lessee and/or any Designated Purchaser has complied with all of
the terms and conditions of this Agreement.

      4.10. Payments. Purchaser and Lessee shall make all payments in lawful
money of the United States and in same day or immediately available funds not
later than 11:00 a.m. on the date due.

      4.11. Environmental Reports. Lessee shall obtain and deliver to Lessor,
not later than twenty (20) days prior to the Expiration Date of the Lease
Agreement (or, in the case of a purchase of a portion of the Property pursuant
to the Partial Purchase Option, prior to the applicable Partial Purchase Date),
environmental reports with respect to the Property (or, in the case of a
purchase of a portion of the Property pursuant to the Partial Purchase Option,
with respect to the applicable portion thereof) prepared by environmental
consultants acceptable to Lessor.

      4.12. Further Assurances. Lessee shall, and shall cause any Designated
Purchaser to, execute and deliver such documents, instruments and agreements and
take such other actions as Lessor may reasonably request to effect the purposes
of this Agreement and comply with the terms hereof. Similarly, Lessor shall
execute and deliver such documents, instruments and agreements and take such
other actions as Lessee or a Designated Purchaser may reasonably request to
effect the purposes of this Agreement and comply with the terms hereof.


SECTION 5. MISCELLANEOUS.

      5.01. Notices. Except as otherwise specified herein, all notices,
requests, demands, consents, instructions or other communications to or upon
Lessee or Lessor under this 


                                      C-15
   185
Agreement shall be given as provided in Subparagraph 2.02(c) and Paragraph 7.01
of the Participation Agreement.

      5.02. Waivers, Amendments. Any term, covenant, agreement or condition of
this Agreement may be amended or waived only as provided in the Participation
Agreement. No failure or delay by any Lessor Party in exercising any right
hereunder shall operate as a waiver thereof or of any other right nor shall any
single or partial exercise of any such right preclude any other further exercise
thereof or of any other right. Unless otherwise specified in any such waiver or
consent, a waiver or consent given hereunder shall be effective only in the
specific instance and for the specific purpose for which given.

      5.03. Successors and Assigns.

            (a)   General. This Agreement shall be binding upon and inure to the
      benefit of the Lessor Parties and Lessee and their permitted successors
      and assigns; provided, however, that the Lessor Parties and Lessee shall
      not sell, assign or delegate their respective rights and obligations
      hereunder except as provided in the Participation Agreement and in
      Subparagraph 5.03(b).

            (b)   Assignment by Lessee of Purchase Rights. Lessee may assign to
      a third party (an "Assignee Purchaser") its right to purchase the Property
      pursuant to the Partial Purchase Option, the Term Purchase Option or the
      Expiration Date Purchase Option; provided, however, that (i) such an
      assignment shall not relieve Lessee of its obligations to consummate or
      cause the consummation of any such purchase in accordance with the terms
      of this Agreement and (ii) Lessee assumes all responsibility for
      determining the creditworthiness of any such Assignee Purchaser. If, after
      any purchase by an Assignee Purchaser hereunder, the purchase price paid
      by such Assignee Purchaser is recovered from any Lessor Party, Lessee
      shall reimburse such Lessor Party for such recovery unless such recovery
      is due solely to a material misrepresentation or covenant breach by such
      Lessor Party.

      5.04. No Third Party Rights. Nothing expressed in or to be implied from
this Agreement is intended to give, or shall be construed to give, any Person,
other than the Lessor Parties and Lessee and their permitted successors and
assigns, any benefit or legal or equitable right, remedy or claim under or by
virtue of this Agreement or under or by virtue of any provision herein.

      5.05. Partial Invalidity. If at any time any provision of this Agreement
is or becomes illegal, invalid or unenforceable in any respect under the law or
any jurisdiction, neither the legality, validity or enforceability of the
remaining provisions of this Agreement nor the legality, validity or
enforceability of such provision under the law of any other jurisdiction shall
in any way be affected or impaired thereby.

      5.06. Governing Law. This Agreement shall be governed by and construed in
accordance with the laws of the State of California without reference to
conflicts of law rules.


                                      C-16
   186
      5.07. Counterparts. This Agreement may be executed in any number of
identical counterparts, any set of which signed by all the parties hereto shall
be deemed to constitute a complete, executed original for all purposes.

      5.08. Nature of Lessee's Obligations.

            (a)   Independent Obligation. The obligation of Lessee to pay the
      amounts payable by Lessee under this Agreement and the other Operative
      Documents and to perform the other Lessee Obligation are absolute,
      unconditional and irrevocable obligations which are separate and
      independent of the obligations of the Lessor Parties under this Agreement
      and the other Operative Documents and all other events and circumstances,
      including the events and circumstances set forth in Subparagraph 5.08(c).

            (b)   No Termination or Abatement. This Agreement and the other
      Operative Documents and Lessee's obligation to pay all amounts hereunder
      and to pay and perform all other Lessee Obligations shall continue in full
      force and effect without abatement notwithstanding the occurrence or
      existence of any event or circumstance, including any event or
      circumstance set forth in Subparagraph 5.08(c).

            (c)   Full Payment and Performance. Lessee shall make all payments
      under this Agreement and the other Operative Documents in the full amounts
      and at the times required by the terms of this Agreement and the other
      Operative Documents without setoff, deduction or reduction of any kind and
      shall perform all other Lessee Obligations as and when required, without
      regard to any event or circumstances whatsoever, including (i) the
      condition of the Property (including any Improvements to the Property made
      prior to the Commencement Date or during the Term of the Lease Agreement);
      (ii) title to the Property (including possession of the Property by any
      Person or the existence of any Lien or any other right, title or interest
      in or to any of the Property in favor of any Person); (iii) the value,
      habitability, usability, design, operation or fitness for use of the
      Property; (iv) the availability or adequacy of utilities and other
      services to the Property; (v) any latent, hidden or patent defect in the
      Property; (vi) the zoning or status of the Property or any other
      restrictions on the use of the Property; (g) the economics of the
      Property; (vii) any Casualty or Condemnation; (viii) the compliance of the
      Property with any applicable Governmental Rule or Insurance Requirement;
      (ix) any failure by any Lessor Party to perform any of its obligations
      under this Agreement or any other Operative Document; or (x) the exercise
      by any Lessor Party of any of its remedies under this Agreement or any
      other Operative Document; provided, however, that (A) Lessee shall have no
      obligation to purchase the Property on the Expiration Date if Lessor fails
      to remove Lessor Liens or deliver the required deed and bill of sale or
      other documents required to be delivered by Lessor hereunder and (B) this
      Paragraph 5.08 shall not abrogate any right which Lessee may have to
      recover damages from any Lessor Party for any material breach by such
      Lessor Party of its obligations under this Agreement or any other
      Operative Document to the extent permitted hereunder or thereunder.

                          [The signature page follows.]


                                      C-17
   187
      IN WITNESS WHEREOF, Lessee and Lessor have caused this Agreement to be
executed as of the day and year first above written.



LESSEE:                                KLA-TENCOR CORPORATION

                                       By:___________________________
                                          Name:______________________
                                          Title:_____________________


LESSOR:                                LEASE PLAN U.S.A., INC.

                                       By:___________________________
                                          Name:______________________
                                          Title:_____________________


                                      C-18
   188
                                  EXHIBIT A(1)

                     NOTICE OF TERM PURCHASE OPTION EXERCISE

                                     [Date]

Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
  as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY  10019
Attn:  Linda Boardman

      1.    Reference is made to the following:

            (a)   The Participation Agreement, dated as of November 12, 1997
      (the "Participation Agreement"), among KLA-Tencor Corporation ("Lessee"),
      Lease Plan U.S.A., Inc. ("Lessor"), the financial institutions listed in
      Schedule I to the Participation Agreement (the "Participants") and ABN
      AMRO Bank N.V., as agent for the Participants (in such capacity, "Agent");

            (b)   The Lease Agreement, dated as of November 12, 1997 (the "Lease
      Agreement"), between Lessee and Lessor; and

            (c)   The Purchase Agreement, dated as of November 12, 1997 (the
      "Purchase Agreement"), between Lessee and Lessor.

Unless otherwise indicated, all terms defined in the Participation Agreement
have the same respective meanings when used herein.

      2.    Pursuant to Subparagraph 4.01(a) of the Lease Agreement and
Paragraph 2.01 of the Purchase Agreement, Lessee hereby irrevocably notifies
Lessor that Lessee is exercising its right to terminate the Lease Agreement
prior to the Scheduled Expiration Date of the Lease Agreement and purchase the
Property on [_________, ____] (which date is a Business Day and which date,
after the delivery of this notice, shall be the Expiration Date of the Lease
Agreement).

      IN WITNESS WHEREOF, Lessee has executed this Notice of Term Purchase
Option Exercise on the date set forth above.

                                       KLA-TENCOR CORPORATION

                                       By:___________________________
                                          Name:______________________
                                          Title:_____________________


                                      C-19
   189
                                  EXHIBIT A(2)

                   NOTICE OF PARTIAL PURCHASE OPTION EXERCISE

                                     [Date]

Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
  as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY  10019
Attn:  Linda Boardman

      1.    Reference is made to the following:

            (a)   The Participation Agreement, dated as of November 12, 1997
      (the "Participation Agreement"), among KLA-Tencor Corporation ("Lessee"),
      Lease Plan U.S.A., Inc. ("Lessor"), the financial institutions listed in
      Schedule I to the Participation Agreement (the "Participants") and ABN
      AMRO Bank N.V., as agent for the Participants (in such capacity, "Agent");
      and

            (b)   The Purchase Agreement, dated as of November 12, 1997 (the
      "Purchase Agreement"), between Lessee and Lessor.

Unless otherwise indicated, all terms defined in the Participation Agreement
have the same respective meanings when used herein.

      2.    Pursuant to Paragraph 2.02 of the Purchase Agreement, Lessee hereby
irrevocably notifies Lessor that Lessee is exercising its right to purchase a
portion of the Property as follows:

            (a)   The Tract[s] of Property to be purchased is [are]
      ________________; and

            (b)   The date on which such purchase is to occur is [_________,
      ____] (which date is a Business Day).

      3.    Lessee hereby certifies to Lessor, Agent and the Participants that,
on the date of this notice:

            (a)   The representations and warranties of Lessee set forth in
      Paragraph 4.01 of the Participation Agreement and in the other Operative
      Documents are true and correct in all material respects as if made on such
      date (except for representations and warranties expressly made as of a
      specified date, which shall be true as of such date);

            (b)   No Default has occurred and is continuing; and

            (c)   All of the Operative Documents are in full force and effect.


                                      C-20
   190
      IN WITNESS WHEREOF, Lessee has executed this Notice of Partial Purchase
Option Exercise on the date set forth above.

                                       KLA-TENCOR CORPORATION

                                       By:___________________________
                                          Name:______________________
                                          Title:_____________________


                                      C-21
   191
                                    EXHIBIT B

                       NOTICE OF MARKETING OPTION EXERCISE

                                     [Date]

Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
  as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY  10019
Attn:  Linda Boardman

      1.    Reference is made to the following:

            (a)   The Participation Agreement, dated as of November 12, 1997
      (the "Participation Agreement"), among KLA-Tencor Corporation ("Lessee"),
      Lease Plan U.S.A., Inc. ("Lessor"), the financial institutions listed in
      Schedule I to the Participation Agreement (the "Participants") and ABN
      AMRO Bank N.V., as agent for the Participants (in such capacity, "Agent");
      and

            (b)   The Purchase Agreement, dated as of November 12, 1997 (the
      "Purchase Agreement"), between Lessee and Lessor.

Unless otherwise indicated, all terms defined in the Participation Agreement
have the same respective meanings when used herein.

      2.    Pursuant to Paragraph 3.01 of the Purchase Agreement, Lessee hereby
notifies Lessor that Lessee is electing to exercise the Marketing Option on the
Scheduled Expiration Date of the Lease Agreement of [_____, ____].

      3.    Lessee hereby certifies to Lessor, Agent and the Participants that,
on the date of this notice:

            (a)   The representations and warranties of Lessee set forth in
      Paragraph 4.01 of the Participation Agreement and in the other Operative
      Documents are true and correct in all material respects as if made on such
      date (except for representations and warranties expressly made as of a
      specified date, which shall be true as of such date);

            (b)   No Default (other than a Non-Marketing Option Event of Default
      under the Lease Agreement) has occurred and is continuing; and

            (c)   All of the Operative Documents are in full force and effect.


                                      C-22
   192
      IN WITNESS WHEREOF, Lessee has executed this Notice of Marketing Option
Exercise on the date set forth above.

                                       KLA-TENCOR CORPORATION

                                       By:___________________________
                                          Name:______________________
                                          Title:_____________________


                                      C-23
   193
                                    EXHIBIT C

               NOTICE OF EXPIRATION DATE PURCHASE OPTION EXERCISE

                                     [Date]

Lease Plan U.S.A., Inc.
ABN AMRO Bank N.V.
  as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY  10019
Attn:  Linda Boardman

      1.    Reference is made to the following:

            (a)   The Participation Agreement, dated as of November 12, 1997
      (the "Participation Agreement"), among KLA-Tencor Corporation ("Lessee"),
      Lease Plan U.S.A., Inc. ("Lessor"), the financial institutions listed in
      Schedule I to the Participation Agreement (the "Participants") and ABN
      AMRO Bank N.V., as agent for the Participants (in such capacity, "Agent");
      and

            (b)   The Purchase Agreement, dated as of November 12, 1997 (the
      "Purchase Agreement"), between Lessee and Lessor.

Unless otherwise indicated, all terms defined in the Participation Agreement
have the same respective meanings when used herein.

      2.    Pursuant to Paragraph 3.01 of the Purchase Agreement, Lessee hereby
notifies Lessor that Lessee is electing to exercise the Expiration Date Purchase
Option on the Scheduled Expiration Date of the Lease Agreement of [_____, ____].

      IN WITNESS WHEREOF, Lessee has executed this Notice of Expiration Date
Purchase Option Exercise on the date set forth above.

                                       KLA-TENCOR CORPORATION

                                       By:___________________________
                                          Name:______________________
                                          Title:_____________________


                                      C-24
   194
                                  EXHIBIT D(1)

RECORDING REQUESTED BY
WHEN RECORDED RETURN TO
AND MAIL TAX STATEMENTS TO:
[Purchaser]

- ------------------
- ------------------
- ------------------

Documentary Transfer Tax is not of public record and is shown on a separate
sheet attached to this deed.

- --------------------------------------------------------------------------------


                                 QUITCLAIM DEED

      FOR VALUABLE CONSIDERATION, the receipt of which is hereby acknowledged,
LEASE PLAN U.S.A., INC., a Georgia corporation ("Grantor"), hereby releases,
remises and forever quitclaims to [PURCHASER], a _____________ ("Grantee"), the
real property located in the City of San Jose, County of Santa Clara, State of
California, described on EXHIBIT A attached hereto and made a part hereof (the
"Property").

                                Executed as of _____, 19__.



                                       LEASE PLAN U.S.A., INC.,
                                       a Georgia corporation

                                       By:   _________________________

                                       Its:  _________________________


                                      C-25
   195
                                    EXHIBIT A

                                LEGAL DESCRIPTION










Assessor's Parcel No.:  _______________


                                      C-26
   196
State of _____________
County of _____________________
On ___________________ before me, _________________________,
           Date                     Name, Title of Officer
personally appeared ___________________________________________________________,
                                         Name(s) of signer(s)

(personally known to me -OR- ( proved to me on the basis of satisfactory

                                        evidence to be the person(s) whose
                                        name(s) is/are subscribed to the within
                                        instrument and acknowledged to me that
                                        he/she/they executed the same in
                                        his/her/their authorized capacity(ies),
                                        and that by his/her/their signature(s)
                                        on the instrument the person(s) or the
                                        entity upon behalf of which the
                                        person(s) acted, executed the
                                        instrument.

                                        WITNESS my hand and official seal.


                                        ________________________________________


                                      C-27
   197
                                     , 19__



Santa Clara County Recorder

      Re:   Request That Statement of Documentary Transfer Tax Not be Recorded

Dear Sir:

      Request is hereby made in accordance with Section 11932 of the Revenue and
Taxation Code that this statement of tax due not be recorded with the attached
deed but be affixed to the deed after recordation and before return as directed
on the deed.

      The attached deed names LEASE PLAN U.S.A., an Georgia corporation, as
grantor, and [PURCHASER], a _________________, as grantee.

      The property being transferred and described in the attached deed is
located in the City of San Jose and County of Santa Clara, State of California.

      The amount of Documentary Transfer Tax due on the attached deed is
$__________, computed on full value of the property conveyed.

                                       LEASE PLAN U.S.A.,
                                       a Georgia corporation

                                       By:  ___________________________

                                       Its: ___________________________


                                      C-28
   198
                                  EXHIBIT D(2)

         ACKNOWLEDGMENT AND DISCLAIMER OF REPRESENTATIONS AND WARRANTIES

      THIS ACKNOWLEDGMENT OF DISCLAIMER OF REPRESENTATIONS AND WARRANTIES (this
"Certificate") is made as of ___________, 1997 by [PURCHASER], a _____________
("Grantee").

      Contemporaneously with execution of this Certificate, LEASE PLAN U.S.A.,
INC., a Georgia corporation ("Lease Plan U.S.A."), is executing and delivering
to Grantee a Quitclaim Deed and a Bill of Sale (the foregoing documents and any
other documents to be executed and delivered to Grantee in connection therewith
are herein called the "Conveyancing Documents" and any of the properties, rights
or other matters assigned, transferred or conveyed pursuant thereto are herein
collectively called the "Property") pursuant to the terms of a Purchase
Agreement dated as of November 12, 1997 by and between Lease Plan U.S.A. and
KLA-Tencor Corporation, a Delaware corporation("KLA-Tencor").

      Notwithstanding any provision contained in the Conveyancing Documents to
the contrary, Grantee acknowledges that Lease Plan U.S.A. is selling and Grantee
is purchasing the Property on an "as is, with all faults" basis and that Grantee
is not relying on any representations or warranties of any kind whatsoever,
express or implied, from Lease Plan U.S.A., its agents, or brokers as to any
matters concerning the Property including (a) the condition of the Property
(including any improvements to the Property); (b) title to the Property
(including possession of the Property by any individual or entity or the
existence of any lien or any other right, title or interest in or to any of the
Property in favor of any person, but excluding any Lessor Liens as defined in
that certain Participation Agreement dated as of November 12, 1997 among KLA-
Tencor, Lease Plan U.S.A., the Participants and ABN AMRO Bank N.V., as agent for
the Participants (in such capacity, "Agent")); (c) the value, habitability,
usability, design, operation or fitness for use of the Property; (d) the
availability or adequacy of utilities and other services to the Property; (e)
any latent, hidden or patent defect in the Property; (f) the zoning or status of
the Property or any other restrictions on the use of the Property; (g) the
economics of the Property; (h) any damage to, destruction or, or decrease in the
value of all or any portion of the Property or any condemnation or other taking
or sale of all or any portion of the Property, by or on account of any actual or
threatened eminent domain proceeding or other taking of action by any
governmental authority or other person have the power of eminent domain; or (i)
the compliance of the Property with any applicable law, rule, regulation,
ordinance, order, code, judgment or similar form of decision of any governmental
authority or any terms, conditions or requirements imposed by any policies of
insurance relating to the Property.

                                 [See next page]


                                      C-29
   199
      The provisions of this Certificate shall be binding on Grantee, its
successors and assigns and any other party claiming through Grantee. Grantee
hereby acknowledges that Lease Plan U.S.A. is entitled to rely and is relying on
this Certificate.

      EXECUTED as of ____________, 1997.

                                       [PURCHASER],
                                       a _____________

                                       ___________________

                                       ___________________


                                      C-30
   200
                                    EXHIBIT E

                                  BILL OF SALE

      FOR GOOD AND VALUABLE CONSIDERATION, the receipt of which is hereby
acknowledged, LEASE PLAN U.S.A., Inc., a Georgia corporation ("Seller") does
hereby sell, transfer and convey to [PURCHASER], a _________________________
("Purchaser"): 1) the Related Goods (as defined in that certain Participation
Agreement dated as of November 12, 1997 (the "Participation Agreement") among
KLA-Tencor Corporation ("KLA- Tencor"), Seller, the Participants and ABN AMRO
Bank N.V., as agent for the Participants (in such capacity, "Agent")) in
connection with that certain real property commonly known as _______________,
San Jose, California, including, without limitation, the personal property
itemized on SCHEDULE 1 attached hereto and incorporated herein by this reference
(the "Property"), and 2) all Appurtenant Rights, Related Permits and Related
Agreements as those terms are defined in the Participation Agreement.

      Seller is selling and Purchaser is purchasing the Property on an "as is,
with all faults" basis and Purchaser is not relying on any representations or
warranties of any kind whatsoever, express or implied, from Seller, its agents,
or brokers as to any matters concerning the Property including (a) the condition
of the Property; (b) title to the Property (including possession of the Property
by any individual or entity or the existence of any lien or any other right,
title or interest in or to any of the Property in favor of any person but
excluding any Lessor Liens as defined in the Participation Agreement); (c) the
value, habitability, usability, design, operation or fitness for use of the
Property; or (d) any latent, hidden or patent defect in the Property.

Dated:   ________, 19__                SELLER:

                                       LEASE PLAN U.S.A., INC.
                                       a Georgia corporation

                                       By:  ___________________________

                                       Its: ___________________________


                                       PURCHASER:

                                       [PURCHASER]
                                       a __________________________

                                       By:  ___________________________

                                       Its: ___________________________


                                      C-31
   201
                                   SCHEDULE 1

                                    PROPERTY


                                      C-32
   202
                                    EXHIBIT F


RECORDING REQUESTED BY
WHEN RECORDED RETURN TO
AND MAIL TAX STATEMENTS TO:

_____________________
_____________________

Attention:  _____________

Documentary Transfer Tax is not of public record and is shown on a separate
sheet attached to this deed.

- --------------------------------------------------------------------------------


                                 QUITCLAIM DEED

      FOR VALUABLE CONSIDERATION, the receipt of which is hereby acknowledged,
KLA-TENCOR CORPORATION, a Delaware corporation ("Grantor"), hereby releases,
remises and forever quitclaims to [PURCHASER] ("Grantee"), the real property
located in the City of San Jose, County of Santa Clara, State of California,
described on EXHIBIT A attached hereto and made a part hereof (the "Property").

      Executed as of __________, 19__.



                                       KLA-TENCOR CORPORATION,
                                       a Delaware corporation

                                       By:   ___________________________________

                                       Its:  ___________________________________


                                      C-33
   203
                                    EXHIBIT A

                                LEGAL DESCRIPTION







Assessor's Parcel No.:  ____________________


                                      C-34
   204
State of _________________
County of _____________________
On ___________________ before me, _________________________,
           Date                    Name, Title of Officer
personally appeared ___________________________________________________________,
                                         Name(s) of signer(s)

(personally known to me -OR- ( proved to me on the basis of satisfactory
                                        evidence to be the person(s) whose
                                        name(s) is/are subscribed to the within
                                        instrument and acknowledged to me that
                                        he/she/they executed the same in
                                        his/her/their authorized capacity(ies),
                                        and that by his/her/their signature(s)
                                        on the instrument the person(s) or the
                                        entity upon behalf of which the
                                        person(s) acted, executed the
                                        instrument.


                                        WITNESS my hand and official seal.


                                        ________________________________________


                                      C-35
   205
                                _________ , 1997



Santa Clara County Recorder

      Re:   Request That Statement of Documentary 
            Transfer Tax Not be Recorded

Dear Sir:

      Request is hereby made in accordance with Section 11932 of the Revenue and
Taxation Code that this statement of tax due not be recorded with the attached
deed but be affixed to the deed after recordation and before return as directed
on the deed.

      The attached deed names KLA-TENCOR CORPORATION, a Delaware corporation, as
grantor, and [PURCHASER], as grantee.

      The property being transferred and described in the attached deed is
located in the City of San Jose and County of Santa Clara, State of California.

      The amount of Documentary Transfer Tax due on the attached deed is
$__________, computed on full value of the property conveyed.

                                       KLA-TENCOR CORPORATION,
                                       a Delaware corporation

                                       By:  __________________________

                                       Its: __________________________


                                      C-36
   206
                                    EXHIBIT G

                                  BILL OF SALE

      For good and valuable consideration, the receipt and sufficiency of which
are hereby acknowledged, KLA-Tencor Corporation, a Delaware corporation
("Seller"), does hereby sell, transfer, and convey unto [PURCHASER] ("Buyer"):
1) without warranty, the Related Goods (as defined in that certain Participation
Agreement dated as of November 12, 1997 (the "Participation Agreement") among
Lease Plan U.S.A., Inc., Seller, the Participants and ABN AMRO Bank N.V., as
agent for the Participants (in such capacity, "Agent")) in connection with that
certain real property commonly known as _______________, San Jose, California,
including, without limitation, the personal property itemized on SCHEDULE 1
attached hereto and incorporated herein by this reference (the "Property"), and
2) all Appurtenant Rights, Related Permits and Related Agreements as those terms
are defined in the Participation Agreement.

      DATED this ____ day of __________, 19__.

                             SELLER:   KLA-Tencor Corporation,
                                       a Delaware corporation



                                       By: _____________________________________

                                       Its: ____________________________________


                                      C-37
   207
                                   SCHEDULE 1

                                    PROPERTY


                                      C-38
   208
                                                                  EXECUTION COPY


================================================================================



                               PURCHASE AGREEMENT

                                     BETWEEN

                             KLA-TENCOR CORPORATION

                                       AND

                             LEASE PLAN U.S.A., INC.



                                NOVEMBER 12, 1997



================================================================================


                                      C-39
   209

                                                                                                    
SECTION 1.  INTERPRETATION.................................................................................2

1.01.       Definitions....................................................................................2

1.02.       Rules of Construction..........................................................................2

SECTION 2.  OPTIONAL PURCHASE BY LESSEE DURING THE TERM....................................................2

2.01.       Term Purchase Option...........................................................................2

2.02.       Partial Purchase Option........................................................................3

SECTION 3.  OBLIGATIONS OF LESSEE ON THE EXPIRATION DATE...................................................4

3.01.       Alternative....................................................................................4

3.02.       Marketing Option...............................................................................4

3.03.       Expiration Date Purchase Option...............................................................10

SECTION 4.  TERMS OF ALL PURCHASES........................................................................10

4.01.       Representations and Warranties of Parties.....................................................10

4.02.       As Is Purchase................................................................................12

4.03.       Release.......................................................................................13

4.04.       Permits, Approvals, Etc.......................................................................13

4.05.       Costs.........................................................................................13

4.06.       Lessee's Expiration Date and Partial Purchase Date Payment Obligations........................13

4.07.       Lessor Liens..................................................................................14

4.08.       Transfer Documents............................................................................14

4.09.       Casualty and Condemnation Proceeds............................................................15

4.10.       Payments......................................................................................15

4.11.       Environmental Reports.........................................................................15

4.12.       Further Assurances............................................................................15

SECTION 5.  MISCELLANEOUS.................................................................................15

5.01.       Notices.......................................................................................16

5.02.       Waivers, Amendments...........................................................................16

5.03.       Successors and Assigns........................................................................16

5.04.       No Third Party Rights.........................................................................16

5.05.       Partial Invalidity............................................................................16

5.06.       Governing Law.................................................................................16

5.07.       Counterparts..................................................................................17

5.08.       Nature of Lessee's Obligations................................................................17



                                      C-40
   210
EXHIBITS

A(1)   Notice of Term Purchase Option Exercise (2.02) 
A(2)   Notice of Partial Purchase Option Exercise (2.02) 
B      Notice of Marketing Option Exercise (3.01) 
C      Notice of Expiration Date Purchase Option Exercise (2.02) 
D(1)   Deed (Lessor) (4.08(a))
D(2)   Acknowledgment of Disclaimer of Representations and Warranties (4.08(a)) 
E      Bill of Sale (Lessor) (4.08(a)) 
F      Deed (Lessee) ((4.08(b)) 
G      Bill of Sale (Lessee) 4.08(b))


                                      C-41
   211
                                    EXHIBIT D

                         CONSTRUCTION AGENCY AGREEMENT


      THIS CONSTRUCTION AGENCY AGREEMENT (this "Agreement" herein), dated as of
November 12, 1997 is entered into by and between:

            (1)   KLA-TENCOR CORPORATION, a Delaware corporation ("Lessee"); and

            (2)   LEASE PLAN U.S.A., INC., a Georgia corporation ("Lessor").


                                    RECITALS

      A.    Lessee has requested Lessor and the financial institutions which are
"Participants" under the Participation Agreement referred to in Recital B below
(such financial institutions to be referred to collectively as the
"Participants") to provide to Lessee a certain lease facility. Pursuant to such
facility:

            (1)   Lessor would (a) acquire certain property designated by Lessee
      (either through purchase or lease), (b) lease to Lessee such property and
      certain other property currently held by Lessor, (c) appoint Lessee as
      Lessor's agent to make certain improvements to a portion of such property,
      (d) make advances to finance such improvements and to pay certain related
      expenses, and (e) grant to Lessee the right to purchase such property; and

            (2)   The Participants would participate in such lease facility by
      (a) funding the purchase prices and other advances to be made by Lessor
      and (b) acquiring participation interests in the rental and certain other
      payments to be made by Lessee.

      B.    Pursuant to a Participation Agreement dated of even date herewith
(the "Participation Agreement") among Lessee, Lessor, the Participants and ABN
AMRO Bank N.V., as agent for the Participants (in such capacity, "Agent"),
Lessor and the Participants have agreed to provide such lease facility upon the
terms and subject to the conditions set forth therein, including without
limitation the execution and delivery of this Agreement setting forth the terms
of Lessee's construction obligations.


                                    AGREEMENT

      NOW, THEREFORE, in consideration of the above Recitals and the mutual
covenants herein contained, the parties hereto hereby agree as follows:


                                      D-1
   212
SECTION 1. INTERPRETATION.

      1.01. Definitions. Unless otherwise indicated in this Agreement or any
other Operative Document, each term set forth in Schedule 1.01 to the
Participation Agreement, when used in this Agreement or any other Operative
Document, shall have the respective meaning given to that term in such Schedule
1.01 or in the provision of this Agreement or other document, instrument or
agreement referenced in such Schedule 1.01.

      1.02. Rules of Construction. Unless otherwise indicated in this Agreement
or any other Operative Document, the rules of construction set forth in Schedule
1.02 to the Participation Agreement shall apply to this Agreement and the other
Operative Documents.

SECTION 2. APPOINTMENT; AUTHORITY.

      2.01. Appointment. Lessor hereby appoints Lessee and Lessee hereby agrees
to act as Lessor's agent for the construction of the New Improvements to the
Tract 1 Property, the Tract 3 Property, the Tract 4 Property and the Tract 5
Property.

      2.02. Scope of Authority. Lessee shall have the authority to perform all
acts expressly delegated to or undertaken by Lessee under this Agreement and all
other acts reasonably necessary to complete the construction of the New
Improvements in accordance with the Plans and Specifications, this Agreement,
the other Operative Documents, all applicable Governmental Rules and all
applicable Insurance Requirements; provided, however, that no Lessor Party shall
have any obligation to pay any fees, costs or expenses related to such
construction (except to the extent of Lessor's obligation to make, and the
Participants' obligations to fund, Advances pursuant to the Participation
Agreement) and Lessee shall have no authority to, and shall not, enter into any
agreement which would, directly or indirectly, require any Lessor Party to pay
any such fees, costs or expenses or otherwise impose upon any Lessor Party any
liability or obligation. Subject to the terms and conditions of this Agreement
and the other Operative Documents, Lessee shall have sole management and control
over the construction means, methods, sequences and procedures with respect to
the construction of the New Improvements.

      2.03. Delegation of Duties. Lessee may employ such architects, engineers,
contractors, consultants, agents, employees and other Persons as Lessee
determines are necessary or appropriate to construct the New Improvements and
perform its other obligations and duties hereunder and may delegate to such
Persons any or all of such obligations and duties; provided, however, that no
such employment or delegation shall limit or reduce in any way Lessee's
obligations and duties under this Agreement.


SECTION 3. LESSEE'S OBLIGATIONS AND DUTIES.

      3.01. Plans and Specifications. Lessee shall deliver to Lessor, for
approval by Lessor and Agent, the Plans and Specifications for all new
improvements it elects to make to each Tract of Property. Once any Plans and
Specifications for any Tract of Property are so delivered and 


                                      D-2
   213
approved by Lessor and Agent, Lessee shall not agree to or permit any revision,
amendment, supplementation or other modification to such Plans and
Specifications without the written consent of Lessor if such revision,
amendment, supplementation or modification (either alone or together with all
prior revisions, amendments, supplementations and modifications to all Plans and
Specifications for all of the Tracts of Property) is reasonably likely to:

            (a)   Cause the Acquisition Prices plus all other costs and expenses
      of acquiring all of the Tracts of Property and constructing all of the New
      Improvements to all the Tracts of Property in accordance with this
      Agreement (including all Permitted Improvement Costs and Permitted
      Transaction Expenses paid or to be paid with Advances) to exceed the
      lesser of (i) the Total Commitment and (ii) the sum of the most recent
      Expiration Date Appraisals for all of the Tracts of Property (or, in the
      case of any Tract of Property for which Lessee does not deliver an
      Expiration Date Appraisal, the Closing Date Appraisal therefor);

            (b)   Make it difficult or impossible to Complete the construction
      of all the New Improvements to such Tract of Property in accordance with
      this Agreement on or prior to the Outside Completion Date; or

            (c)   Cause the Fair Market Value of such Tract of Property to be
      less than the most recent Expiration Date Appraisal for such Tract of
      Property (or, in the case of any Tract of Property for which Lessee does
      not deliver an Expiration Date Appraisal, the Closing Date Appraisal
      therefor) or otherwise decrease in any material amount.

Lessee shall notify Lessor promptly in writing of any revision, amendment,
supplementation or other modification to the Plans and Specifications.

      3.02. Construction Agreements. Lessee has entered or shall, on a timely
basis, enter into such agreements with architects, engineers, contractors,
consultants, materialmen, suppliers, agents, employees and other Persons as are
necessary or appropriate to construct the New Improvements and perform Lessee's
other obligations and duties hereunder in connection therewith (together with
the Plans and Specifications, the "Construction Agreements"). Each Construction
Agreement shall expressly permit the assignment of Lessee's rights thereunder to
Lessor without the consent of the other party(ies) to such agreement. Upon
Lessor's request, Lessee shall deliver to Lessor copies of any or all
Construction Agreements.

      3.03. Permits, Approvals, Etc. Prior to the time they are required, Lessee
shall obtain from Governmental Authorities and other Persons all licenses,
approvals, authorizations, consents, permits, easements and rights-of-way that
are necessary for the construction of any New Improvements in accordance with
this Agreement. Upon Lessor's request, Lessee shall deliver to Lessor copies of
any or all such licenses, approvals, authorizations, consents, permits,
easements and rights-of-way.

      3.04. Material and Supplies. Lessee shall obtain all materials and
supplies necessary to construct the New Improvements. Lessee shall cause all
such materials and supplies (a) to be purchased in a manner that will result in
the ownership thereof vesting unconditionally in Lessor, 


                                      D-3
   214
free from all Liens (other than Liens that attach in favor of the materialmen or
subcontractors that supply and/or install such materials and supplies); (b) to
be stored at the applicable Tract of Land under adequate safeguards to minimize
the possibility of loss, theft, damage or commingling with other materials or
projects; and (c) to be covered by the insurance policies required under this
Agreement and the other Operative Documents. Upon Lessor's request, Lessee shall
deliver to Lessor copies of any contracts, bills of sale, statements, receipts,
vouchers or agreements for the materials and supplies used or to be used in the
construction of the New Improvements.

      3.05  Construction.

            (a)   Manner. Lessee shall construct the New Improvements (including
      all foundations and structural portions thereof; all plumbing, heating,
      air conditioning and electrical systems; and all water, sewer, electric,
      gas, telephone and drainage facilities) in a good and workmanlike manner,
      free from any material defect in design or construction, in accordance
      with the Plans and Specifications, this Agreement, the other Operative
      Documents, all applicable Governmental Rules and all applicable Insurance
      Requirements.

            (b)   Completion. Lessee shall Complete the construction of the New
      Improvements to all Tracts of Property on which New Improvements are to be
      constructed on or prior to the Outside Completion Date. "Completion" shall
      occur for the New Improvements to a Tract of Property when each of the
      following conditions has been satisfied:

                  (i)   The New Improvements to such Tract of Property have been
            completed in accordance with this Agreement, are in first class
            working condition and are ready for occupancy and use as a facility
            as described in clause (ii) under the heading for the applicable
            Tract of Property in Schedule 4.01(s) to the Participation
            Agreement. This shall include, without limiting the generality of
            the preceding sentence, evidence that (A) all utilities required to
            adequately service such New Improvements for their intended use are
            available and "tapped on" and hooked up pursuant to adequate permits
            (including any that may be required under applicable Environmental
            Laws) and (B) access to such New Improvements for pedestrians and
            motor vehicles from publicly dedicated streets and public highways
            are available.

                  (ii)  Lessee shall have furnished to Lessor each of the
            following:

                        (A)   A certificate of Lessee in the form of Exhibit A,
                  duly executed by Lessee;

                        (B)   A certificate of an architect acceptable to Lessor
                  in the form of Exhibit B, duly executed by such architect,
                  together with copies of each of the documents referred to
                  therein;


                                      D-4
   215
                        (C)   A date-down endorsement to or reissued title
                  insurance policies or binders delivered by Lessee pursuant to
                  Paragraph 3.02 and Schedule 3.02 of the Participation
                  Agreement;

                        (D)   Copies of all mechanic's or materialman's lien
                  waivers and releases as required by Lessor; and

                        (E)   Certificate of final occupancy issued by the
                  appropriate Governmental Authority.

      3.06. Insurance. Lessee (and its general contractor) shall maintain
policies of casualty and liability insurance as provided in Paragraph 3.03 of
the Lease Agreement.

      3.07. Fees, Costs and Expenses.

            (a)   Lessee's Responsibility. Except to the extent such fees, costs
      and expense are paid by Advances, Lessee shall pay all fees, costs and
      expenses of constructing the New Improvements from its own funds.

            (b)   Prompt Payment. Lessee shall pay promptly all fees, costs and
      expenses of architects, engineers, contractors, materialmen, suppliers,
      consultants, agents, employees and other Persons which provide services,
      materials or supplies in connection with the construction of the New
      Improvements and all other fees, costs and expenses related to such
      construction.

            (c)   No Lessee Fee. Lessee shall not be entitled to any fee for the
      performance of its obligations and duties hereunder or any other
      compensation in connection with this Agreement.

      3.08. Books and Records. Lessee shall maintain accurate books and records,
in reasonable detail, relating to the construction of the New Improvements and
shall permit Lessor to inspect the same and make copies thereof, at Lessee's
expense, upon reasonable notice to Lessee.

      3.09. Additional Obligations and Duties. In addition to the obligations
and duties set forth above in this Section 3, Lessee shall perform all other
acts reasonably necessary to achieve Completion of the construction of the New
Improvements in accordance with the Plans and Specifications, this Agreement,
the other Operative Documents, all applicable Governmental Rules and all
applicable Insurance Requirements.


SECTION 4. MISCELLANEOUS.

      4.01. Notices. Except as otherwise specified herein, all notices,
requests, demands, consents, instructions or other communications to or upon
Lessee or Lessor under this 


                                      D-5
   216
Agreement shall be given as provided in Subparagraph 2.02(c) and Paragraph 7.01
of the Participation Agreement.

      4.02. Waivers; Amendments. Any term, covenant, agreement or condition of
this Agreement may be amended or waived only as provided in the Participation
Agreement. No failure or delay by any Lessor Party in exercising any right
hereunder shall operate as a waiver thereof or of any other right nor shall any
single or partial exercise of any such right preclude any other further exercise
thereof or of any other right. Unless otherwise specified in any such waiver or
consent, a waiver or consent given hereunder shall be effective only in the
specific instance and for the specific purpose for which given.

      4.03. Successors and Assigns. This Agreement shall be binding upon and
inure to the benefit of the Lessor Parties and Lessee and their permitted
successors and assigns; provided, however, that the Lessor Parties and Lessee
shall not sell, assign or delegate their respective rights and obligations
hereunder except as provided in the Participation Agreement.

      4.04. No Third Party Rights. Nothing expressed in or to be implied from
this Agreement is intended to give, or shall be construed to give, any Person,
other than the Lessor Parties and Lessee and their permitted successors and
assigns, any benefit or legal or equitable right, remedy or claim under or by
virtue of this Agreement or under or by virtue of any provision herein.

      4.05. Partial Invalidity. If at any time any provision of this Agreement
is or becomes illegal, invalid or unenforceable in any respect under the law or
any jurisdiction, neither the legality, validity or enforceability of the
remaining provisions of this Agreement nor the legality, validity or
enforceability of such provision under the law of any other jurisdiction shall
in any way be affected or impaired thereby.

      4.06. Governing Law. This Agreement shall be governed by and construed in
accordance with the laws of the State of California without reference to
conflicts of law rules.

      4.07. Counterparts. This Agreement may be executed in any number of
identical counterparts, any set of which signed by all the parties hereto shall
be deemed to constitute a complete, executed original for all purposes.

      4.08. Nature of Lessee's Obligations.

            (a)   Independent Obligation. The obligation of Lessee to construct
      the New Improvements pursuant to this Agreement and the other Operative
      Documents and to perform the other Lessee Obligations are absolute,
      unconditional and irrevocable obligations which are separate and
      independent of the obligations of the Lessor Parties under this Agreement
      and the other Operative Documents and all other events and circumstances,
      including the events and circumstances set forth in Subparagraph 4.08(c).

            (b)   No Termination or Abatement. This Agreement and the other
      Operative Documents and Lessee's obligation to construct the New
      Improvements and to pay and 


                                      D-6
   217
      perform all other Lessee Obligations shall continue in full force and
      effect without abatement notwithstanding the occurrence or existence of
      any event or circumstance, including any event or circumstance set forth
      in Subparagraph 4.08(c).

            (c)   Full Payment and Performance. Lessee shall perform all of its
      obligations under this Agreement and the other Operative Documents in the
      manner and at the times required by the terms of this Agreement and the
      other Operative Documents without setoff, deduction or reduction of any
      kind and shall perform all other Lessee Obligations as and when required,
      without regard to any event or circumstances whatsoever, including (i) the
      condition of the Property (including any Improvements to the Property made
      prior to the Commencement Date or during the Term); (ii) title to the
      Property (including possession of the Property by any Person or the
      existence of any Lien or any other right, title or interest in or to any
      of the Property in favor of any Person); (iii) the value, habitability,
      useability, design, operation or fitness for use of the Property; (iv) the
      availability or adequacy of utilities and other services to the Property;
      (v) any latent, hidden or patent defect in the Property; (vi) the zoning
      or status of the Property or any other restrictions on the use of the
      Property; (g) the economics of the Property; (vii) any Casualty or
      Condemnation; (viii) the compliance of the Property with any applicable
      Governmental Rule or Insurance Requirement; (ix) any failure by any Lessor
      Party to perform any of its obligations under this Agreement or any other
      Operative Document; or (x) the exercise by any Lessor Party of any of its
      remedies under this Agreement or any other Operative Document; provided,
      however, that (A) Lessor shall have no obligation to continue constructing
      the New Improvements at any time the Lessor Parties are refusing to make
      any Advance in violation of the Participation Agreement and (B) this
      Paragraph 4.08 shall not abrogate any right which Lessee may have to
      recover damages from any Lessor Party for any material breach by such
      Lessor Party of its obligations under this Agreement or any other
      Operative Document to the extent permitted hereunder or thereunder.

                          [The signature page follows.]


                                      D-7
   218
      IN WITNESS WHEREOF, Lessee and Lessor have caused this Agreement to be
executed as of the day and year first above written.

LESSEE:                                KLA-TENCOR CORPORATION


                                       By: _____________________________________
                                           Name: _______________________________
                                           Title: ______________________________


LESSOR:                                LEASE PLAN U.S.A., INC.


                                       By: _____________________________________
                                           Name: _______________________________
                                           Title: ______________________________


                                      D-8
   219
                                    EXHIBIT A
                         LESSEE'S COMPLETION CERTIFICATE
                             ________________, 1997

Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
  as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY 10019
Attn:  Linda Boardman

      1.    Reference is made to the following:

            (a)   The Participation Agreement, dated as of November 12, 1997
      (the "Participation Agreement"), among KLA-Tencor Corporation ("Lessee"),
      Lease Plan U.S.A., Inc. ("Lessor"), the financial institutions listed in
      Schedule I to the Participation Agreement (the "Participants") and ABN
      AMRO Bank N.V., as agent for the Participants (in such capacity, "Agent");
      and

            (b)   The Construction Agency Agreement, dated as of November 12,
      1997 (the "Construction Agency Agreement"), between Lessee and Lessor.

Unless otherwise indicated, all terms defined in the Participation Agreement
have the same respective meanings when used herein.

      2.    Lessee hereby certifies to Lessor, for the benefit of all of the
Lessor Parties, as follows:

            (a)   Lessee has completed all of the New Improvements to the Tract
      [__] Property in accordance with the Plans and Specifications, the
      Construction Agency Agreement, the other Operative Documents, all
      applicable Governmental Rules and all applicable Insurance Requirements
      and the New Improvements now are ready for use and occupancy as a facility
      described in clause (ii) under the heading "Tract [__] Property" in
      Schedule 4.01(s) to the Participation Agreement.

            (b)   All amounts payable to third parties for the construction of
      such New Improvements have been paid in full (other than amounts which
      Lessee is contesting in accordance with the Lease Agreement).

            (c)   No changes or modifications that have had an adverse effect on
      the value, use or useful life of the Tract [__] Property were made to the
      Plans and Specifications for the New Improvements to such Property after
      the date the Plans and Specifications for such Property were approved by
      Lessor, Agent and the Participants pursuant to Subparagraph 2.01(c) of the
      Participation Agreement.


                                      D-9
   220
            (d)   The representations and warranties relating to the Tract [__]
      Property set forth in Subparagraph 4.01(s) of the Participation Agreement
      and Schedule 4.01(s) to the Participation Agreement and the other
      representations and warranties of Lessee set forth in the Operative
      Documents are true and correct in all material respects on the date hereof
      (except for representations and warranties expressly made as of a
      specified date, which shall be true as of such date).

            (e)   No Default has occurred and is continuing.

            (f)   All of the Operative Documents are in full force and effect.

      IN WITNESS WHEREOF, Lessee has executed this Lessee's Completion
Certificate on the date set forth above.

                                       KLA-TENCOR CORPORATION

                                       By: _____________________________________
                                           Name: _______________________________
                                           Title: ______________________________


                                      D-10
   221
                                    EXHIBIT B
                       ARCHITECT'S COMPLETION CERTIFICATE
                             ________________, 1997

Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
  as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY 10019
Attn:  Linda Boardman


      1.    Reference is made to the following:

            (a)   The [____________] Agreement, dated as of [____] (the
      "Architect's Agreement"), between KLA-Tencor Corporation ("Lessee") and
      [__________] ("Architect"); and

            (b)   The plans and specifications dated as of [_______] prepared by
      Architect for certain improvements to the property located at
      [_______________] (the "Plans and Specifications").

      2.    The undersigned hereby certifies to you as follows:

            (a)   The improvements contemplated by the Plans and Specifications
      (the "Improvements") have been completed substantially in accordance with
      such Plans and Specifications, a final certificate of occupancy has been
      issued by the appropriate governmental agency, and the Improvements are
      ready for use and occupancy.

            (b)   To the best of [my][our] knowledge, the Improvements as so
      completed comply with all applicable laws, rule, regulations and
      ordinances pertaining to the construction and occupancy thereof, including
      applicable building and zoning laws, rule, regulations and ordinances, and
      the Americans with Disabilities Act of 1990, 42 U.S.C. Section 1210 et
      seq.

            (c)   No changes or modifications were made to the Plans and
      Specifications after the date thereof that have had an adverse effect on
      the value, use or useful life of the Property.

            (d)   Attached hereto are true and complete copies of an "as built"
      or "record" set of the plans and specifications for the Improvements, and
      an ALTA survey of the property "as built" showing all paving, driveways,
      fences and exterior improvements.


                                      D-11
   222
      IN WITNESS WHEREOF, the undersigned has executed this Architect's
Completion Certificate on the date set forth above.

                                       [Name of Architectural Firm]


                                       By: _____________________________________
                                           Name: _______________________________
                                           Title: ______________________________


                                      D-12
   223
                                                                  EXECUTION COPY


================================================================================



                          CONSTRUCTION AGENCY AGREEMENT


                                     BETWEEN


                             KLA-TENCOR CORPORATION


                                       AND


                             LEASE PLAN U.S.A., INC.





                                NOVEMBER 12, 1997



================================================================================


                                      D-13
   224

                                                                                                    
SECTION 1.  INTERPRETATION.................................................................................2

1.01.       Definitions....................................................................................2

1.02.       Rules of Construction..........................................................................2

SECTION 2.  APPOINTMENT; AUTHORITY.........................................................................2

2.01.       Appointment....................................................................................2

2.02.       Scope of Authority.............................................................................2

2.03.       Delegation of Duties...........................................................................2

SECTION 3.  LESSEE'S OBLIGATIONS AND DUTIES................................................................2

3.01.       Plans and Specifications.......................................................................2

3.02.       Construction Agreements........................................................................3

3.03.       Permits, Approvals, Etc........................................................................3

3.04.       Material and Supplies..........................................................................3

3.05        Construction...................................................................................4

3.06.       Insurance......................................................................................5

3.07.       Fees, Costs and Expenses.......................................................................5

3.08.       Books and Records..............................................................................5

3.09.       Additional Obligations and Duties..............................................................5

SECTION 4.  MISCELLANEOUS..................................................................................5

4.01.       Notices........................................................................................5

4.02.       Waivers; Amendments............................................................................6

4.03.       Successors and Assigns.........................................................................6

4.04.       No Third Party Rights..........................................................................6

4.05.       Partial Invalidity.............................................................................6

4.06.       Governing Law..................................................................................6

4.07.       Counterparts...................................................................................6

4.08.       Nature of Lessee's Obligations.................................................................6



                                      D-14
   225
EXHIBITS
- --------


      A     Lessee's Completion Certificate (3.05(c))

      B     Architect's Completion Certificate (3.05(c)


                                      D-15
   226
                                    EXHIBIT E

                              ACQUISITION REQUEST

                                     [Date]

Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
         as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY  10019
Attn:  Linda Boardman

      1.    Reference is made to that certain Participation Agreement, dated as
of November 12, 1997 (the "Participation Agreement"), among KLA-Tencor
Corporation ("Lessee"), Lease Plan U.S.A., Inc. ("Lessor"), the financial
institutions listed in Schedule I to the Participation Agreement (the
"Participants") and ABN AMRO Bank N.V., as agent for the Participants (in such
capacity, "Agent"). Unless otherwise indicated, all terms defined in the
Participation Agreement have the same respective meanings when used herein.

[Insert the following for the Initial Acquisition Advances]

      [2.   Pursuant to Subparagraph 2.03(a) of the Participation Agreement,
Lessee hereby irrevocably requests Lessor to make the Initial Acquisition
Advances as follows:

            (a)   The Initial Acquisition Advances shall consist of the
      following:

                  (i)   An Acquisition Advance in the amount of $____________
            which shall be used to pay (A) $___________ on account of the Phase
            IIA Termination Payment and (B) $___________ on account of Permitted
            Transaction Expenses related or allocable to the Tract 1 Property;

                  (ii)  An Acquisition Advance in the amount of $____________
            which shall be used to pay (A) $___________ on account of the
            purchase price for the Tract 2 Land and the Improvements and
            Appurtenant Rights thereto [and the Related Goods described under
            the heading "Tract 2 Related Goods" in Attachment 1 hereto]; and (B)
            $___________ on account of Permitted Transaction Expenses related or
            allocable to the Tract 2 Property;

                  (iii) An Acquisition Advance in the amount of $____________
            which shall be used to pay (A) $___________ on account of the
            purchase price for the Existing Improvements to the Tract 3 Land
            [and the Related Goods described under the heading "Tract 3 Related
            Goods" in Attachment 1 hereto]; and (B) $___________ on account of
            Permitted Transaction Expenses related or allocable to the Tract 3
            Property; and


                                      E-1
   227
                  (iv)  An Acquisition Advance in the amount of $____________
            which shall be used to pay (A) $___________ on account of the Phase
            IIB Termination Payment and (B) $___________ on account of Permitted
            Transaction Expenses related or allocable to the Tract 5 Property;

            (b)   The Initial Acquisition Advances shall be made on ___________,
      1997 (the "Closing Date"); and

            (c)   [Insert one of the following as appropriate]

                  [The Initial Acquisition Advances shall consist of the
      following Portion[s] [with the following initial Rental Period[s]]:

                     Portion                          Rental Period
                     -------                          -------------
                  $___________                       _______ month[s]
                  $___________                       _______ month[s]
                  $___________                       _______ month[s]
                  $___________                       _______ month[s]]

                  [The Initial Acquisition Advances shall consist of a single
      Portion with an initial Rental Period that ends on [December 1, 1997].]]

[Insert the following for the Tract 4 Acquisition Advance]

      [2.   Pursuant to Subparagraph 2.03(a) of the Participation Agreement,
Lessee hereby irrevocably requests Lessor to make the Tract 4 Acquisition
Advance as follows:

            (a)   The Tract 4 Acquisition Advance shall be in the amount of
      $____________ which shall be used to pay (A) $___________ on account of
      the purchase price for the Tract 4 Land and the Improvements and
      Appurtenant Rights thereto [and the Related Goods described under the
      heading "Tract 4 Related Goods" in Attachment 1 hereto];and (B)
      $___________ on account of Permitted Transaction Expenses related or
      allocable to the Tract 4 Property;

            (b)   The Tract 4 Acquisition Advance shall be made on ___________,
      1997; and

            (c)   [Insert one of the following as appropriate]

                  [The Tract 4 Acquisition Advance shall consist of the
      following Portion[s] [with the following initial Rental Period[s]]:

                     Portion                          Rental Period
                     -------                          -------------
                  $___________                       _______ month[s]
                  $___________                       _______ month[s]
                  $___________                       _______ month[s]
                  $___________                       _______ month[s]]


                                      E-2
   228
                  [The Tract 4 Acquisition Advance shall consist of a single
      Portion with an initial Rental Period that ends on [_________ 1, 199_].]]

      3.    Lessee hereby certifies to the Lessor Parties that, on the date of
this Acquisition Request and after giving effect to the use of the requested
Acquisition Advance[s] as described above:

            (a)   The representations and warranties of Lessee set forth in
      Paragraph 4.01 of the Participation Agreement and in the other Operative
      Documents are true and correct in all material respects as if made on such
      date (except for representations and warranties expressly made as of a
      specified date, which shall be true as of such date);

            (b)   No Default has occurred and is continuing;

            (c)   All of the Operative Documents are in full force and effect;

            (d)   No action, suit or other proceeding affecting the title to, or
      the use, operation or value of, the applicable Property (including any
      proceeding for Condemnation or under any Environmental Law) is pending or,
      to the best of Lessee's knowledge, threatened; and

            (e)   No Casualty affecting the applicable Property has occurred.

      4.    Please disburse the proceeds of the Acquisition Advance to

      IN WITNESS WHEREOF, Lessee has executed this Acquisition Request on the
date set forth above.

                                       KLA-TENCOR CORPORATION

                                       By: _____________________________
                                           Name: _______________________
                                           Title: ______________________


                                      E-3
   229
                                    EXHIBIT F

                       IMPROVEMENT/EXPENSE ADVANCE REQUEST



                                     [Date]


Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
         as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY  10019
Attn:  Linda Boardman

      1.    Reference is made to that certain Participation Agreement, dated as
of November 12, 1997 (the "Participation Agreement"), among KLA-Tencor
Corporation ("Lessee"), Lease Plan U.S.A., Inc. ("Lessor"), the financial
institutions listed in Schedule I to the Participation Agreement (the
"Participants") and ABN AMRO Bank N.V., as agent for the Participants (in such
capacity, "Agent"). Unless otherwise indicated, all terms defined in the
Participation Agreement have the same respective meanings when used herein.

      2.    Pursuant to Subparagraph 2.03(b) of the Participation Agreement,
Lessee hereby irrevocably requests Lessor to make Improvement/Expense Advances
as follows:

            (a)   [Insert one of the following as appropriate]

                  [Such Improvement/Expense Advances shall be in the aggregate
      amount of $________ and shall consist of (1) an Improvement/Expense
      Advance in the amount of $________ related or allocable to the Tract __
      Property, (2) an Improvement/Expense Advance in the amount of $________
      related or allocable to the Tract __ Property and (3) an
      Improvement/Expense Advance in the amount of $________ related or
      allocable to the Tract __ Property;]

                  [Such Improvement/Expense Advance shall be in the amount of
      $________ and is related or allocable to the Tract __ Property;] and

            (b)   The date of such Improvement/Expense Advance[s] shall be
      ____________, ____ (the "Advance Date").


      3.    [Lessee will use $________ of the proceeds of the requested
Improvement/Expense Advance to pay the costs for the Related Goods described in
the Supplement to Exhibit B to the Lease Agreement which is attached hereto. Of
such amount, [(1) $________ will be used to purchase Related Goods related or
allocable to the Tract __ Property, 


                                       F-1
   230
(2) $________ will be used to purchase Related Goods related or allocable to the
Tract __ Property and (3) $________ will be used to purchase Related Goods
related or allocable to the Tract __ Property]. Bills of sale for all such
Related Goods, each showing Lessor as the purchaser, also are attached
hereto.][Whenever the requested Improvement/Expense Advance is to be used to pay
for Related Goods, include the preceding three sentences, complete and attach an
Exhibit B Supplement describing the Related Goods and attach the applicable
bills of sale.] Lessee will use the [remaining] proceeds of such
Improvement/Expense Advance to pay the costs and expenses set forth in
Attachment 1 hereto. All such costs and expenses are Permitted Improvement Costs
and/or Permitted Transaction Expenses which are now due and payable. No prior
Advance has been requested to pay any such costs and expenses.

      4.    Lessee hereby certifies to the Lessor Parties that, on the date of
this Improvement/Expense Advance Request and after giving effect to the
requested Improvement/Expense Advance:

            (a)   The representations and warranties of Lessee set forth in
      Paragraph 4.01 of the Participation Agreement and in the other Operative
      Documents are true and correct in all material respects as if made on such
      date (except for representations and warranties expressly made as of a
      specified date, which shall be true as of such date);

            (b)   No Default has occurred and is continuing; and

            (c)   All of the Operative Documents are in full force and effect.

      5.    Please disburse the proceeds of the Improvement/Expense Advance to
___________________________________________________.


                                       F-2
   231
      IN WITNESS WHEREOF, Lessee has executed this Improvement/Expense Advance
Request on the date set forth above.

                                       KLA-TENCOR CORPORATION

                                       By: _____________________________
                                           Name: _______________________
                                           Title: ______________________


                                       F-3
   232
                                  ATTACHMENT 1

                                       TO

                       IMPROVEMENT/EXPENSE ADVANCE REQUEST


                                       F-4
   233
                                  EXHIBIT G(1)

                          COMMITMENT EXTENSION REQUEST

                                     [Date]


Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
         as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY  10019
Attn:  Linda Boardman

      1.    Reference is made to that certain Participation Agreement, dated as
of November 12, 1997 (the "Participation Agreement"), among KLA-Tencor
Corporation ("Lessee"), Lease Plan U.S.A., Inc. ("Lessor"), the financial
institutions listed in Schedule I to the Participation Agreement (the
"Participants") and ABN AMRO Bank N.V., as agent for the Participants (in such
capacity, "Agent"). Unless otherwise indicated, all terms defined in the
Participation Agreement have the same respective meanings when used herein.

      2.    Pursuant to Subparagraph 2.09(a) of the Participation Agreement,
Lessee hereby irrevocably requests Lessor to extend (and the Participants to
consent to such extension) the Unused Total Commitment ($___________) for an
additional six (6) months by extending the current Commitment Termination Date
from [__________] to [__________].

      3.    Lessee hereby certifies to the Lessor Parties that, on the date of
this Commitment Extension Request and after giving effect to the extension
requested hereby:

            (a)   The representations and warranties of Lessee set forth in
      Paragraph 4.01 of the Participation Agreement and in the other Operative
      Documents are true and correct in all material respects as if made on such
      date (except for representations and warranties expressly made as of a
      specified date, which shall be true as of such date);

            (b)   No Default has occurred and is continuing; and

            (c)   All of the Operative Documents are in full force and effect.


                                     G(1)-1
   234
      IN WITNESS WHEREOF, Lessee has executed this Commitment Extension Request
on the date set forth above.

                                       KLA-TENCOR CORPORATION

                                       By: _____________________________
                                           Name: _______________________
                                           Title: ______________________





                                     CONSENT

      The undersigned hereby consents to the extension of the Commitment
Termination Date requested above.


                                       _________________________________

                                       By: _____________________________
                                           Name: _______________________
                                           Title: ______________________

                                       Date: ___________________________


                                     G(1)-2
   235
                                  EXHIBIT G(2)

                             LEASE EXTENSION REQUEST

                                     [Date]


Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
         as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY  10019
Attn:  Linda Boardman


      1.    Reference is made to that certain Participation Agreement, dated as
of November 12, 1997 (the "Participation Agreement"), among KLA-Tencor
Corporation ("Lessee"), Lease Plan U.S.A., Inc. ("Lessor"), the financial
institutions listed in Schedule I to the Participation Agreement (the
"Participants") and ABN AMRO Bank N.V., as agent for the Participants (in such
capacity, "Agent"). Unless otherwise indicated, all terms defined in the
Participation Agreement have the same respective meanings when used herein.

      2.    Pursuant to Subparagraph 2.09(b) of the Participation Agreement,
Lessee hereby irrevocably requests Lessor to extend (and the Participants to
consent to such extension) the Term of the Lease Agreement for an additional two
(2) years by extending the current Scheduled Expiration Date from [__________]
to [__________].

      3.    Lessee hereby certifies to the Lessor Parties that, on the date of
this Lease Extension Request and after giving effect to the extension requested
hereby:

            (a)   The representations and warranties of Lessee set forth in
      Paragraph 4.01 of the Participation Agreement and in the other Operative
      Documents are true and correct in all material respects as if made on such
      date (except for representations and warranties expressly made as of a
      specified date, which shall be true as of such date);

            (b)   No Default has occurred and is continuing; and

            (c)   All of the Operative Documents are in full force and effect.


                                     G(2)-1
   236
      IN WITNESS WHEREOF, Lessee has executed this Lease Extension Request on
the date set forth above.

                                       KLA-Tencor Corporation

                                       By: _____________________________
                                           Name: _______________________
                                           Title: ______________________




                                     CONSENT

      The undersigned hereby consents to the extension of the Scheduled
Expiration Date requested above upon the terms set forth in the attachment
hereto.


                                       _________________________________

                                       By: _____________________________
                                           Name: _______________________
                                           Title: ______________________

                                       Date: ___________________________


                                     G(2)-2
   237
                                    EXHIBIT H

                      ASSIGNMENT OF CONSTRUCTION AGREEMENTS


      THIS ASSIGNMENT OF CONSTRUCTION AGREEMENTS (this "Agreement" herein),
dated as of November 12, 1997, is executed by

            (1)   KLA-TENCOR CORPORATION, a Delaware corporation ("Lessee"),

                                   in favor of

            (2)   LEASE PLAN U.S.A., INC., a Georgia corporation ("Lessor").

                                    RECITALS

      A.    Lessee has requested Lessor and the financial institutions which are
"Participants" under the Participation Agreement referred to in Recital B below
(such financial institutions to be referred to collectively as the
"Participants") to provide to Lessee a certain lease facility. Pursuant to such
facility:

            (1)   Lessor would (a) acquire certain property designated by Lessee
      (either through purchase or lease), (b) lease to Lessee such property and
      certain other property currently held by Lessor, (c) appoint Lessee as
      Lessor's agent to make certain improvements to a portion of such property,
      (d) make advances to finance such improvements and to pay certain related
      expenses, and (e) grant to Lessee the right to purchase such property; and

            (2)   The Participants would participate in such lease facility by
      (a) funding the purchase price and other advances to be made by Lessor and
      (b) acquiring participation interests in the rental and certain other
      payments to be made by Lessee.

      B.    Pursuant to a Participation Agreement dated of even date herewith
(the "Participation Agreement") among Lessee, Lessor, the Participants and ABN
AMRO Bank N.V., as agent for the Participants (in such capacity, "Agent"),
Lessor and the Participants have agreed to provide such lease facility upon the
terms and subject to the conditions set forth therein, including, without
limitation, the execution and delivery of this Agreement.

                                    AGREEMENT

      NOW, THEREFORE, in consideration of the above Recitals and the mutual
covenants herein contained, the parties hereto hereby agree as follows:

SECTION 1. INTERPRETATION.

      1.01. Definitions. Unless otherwise indicated in this Agreement or any
other Operative Document, each term set forth in Schedule 1.01 to the
Participation Agreement, when used in 


                                      H-1
   238
this Agreement or any other Operative Document, shall have the respective
meaning given to that term in such Schedule 1.01 or in the provision of this
Agreement or other document, instrument or agreement referenced in such Schedule
1.01.

      1.02. Rules of Construction. Unless otherwise indicated in this Agreement
or any other Operative Document, the rules of construction set forth in Schedule
1.02 to the Participation Agreement shall apply to this Agreement and the other
Operative Documents.

SECTION 2. ASSIGNMENT.

      2.01. Assignment. Lessee hereby assigns to Lessor all of Lessee's right,
title and interest in, to and under all existing and future agreements and
contracts between Lessee and any other Person (collectively, the "Construction
Agreements") relating to the construction of any and all New Improvements on any
portion of the Land described in Exhibit A to the Lease Agreement, including,
without limitation, the agreements and contracts described in Exhibit A and all
future Construction Agreements which may be entered into by Lessee. Upon
execution of any new Construction Agreement, Lessee shall promptly notify Lessor
of such Construction Agreement. Upon Lessor's request, Lessee shall provide
Lessor with copies of the Construction Agreements.

      2.02. Absolute Assignment. This Agreement constitutes a present and
absolute assignment to Lessor; provided, however, that Lessor may not enforce
the terms of the Construction Agreements except during continuance of an Event
of Default. Upon the occurrence of any Event of Default, Lessor may, in its sole
discretion, give notice to any of the contractors referred to in the
Construction Agreements or any other party to the Construction Agreements
(collectively, the "Contractors") of its intent to enforce the rights of Lessee
under the Construction Agreements and may initiate or participate in any legal
proceedings respecting the enforcement of said rights. Lessee acknowledges that,
by accepting this assignment, Lessor does not assume any of Lessee's obligations
under the Construction Agreements.

      2.03. Contractor's Consent. In connection with the execution and delivery
to Lessor of this Agreement, Lessee shall obtain and deliver to Lessor consents
from each Contractor under each Construction Agreement in the form attached
hereto as Exhibit B (a "Contractor's Consent to Assignment"). Lessee shall
obtain and provide to Lessor a Contractor's Consent to Assignment for any new
Construction Agreements entered into by Lessee after the date hereof.

SECTION 3. REPRESENTATIONS, WARRANTIES AND COVENANTS OF LESSEE.

      3.01. Representations and Warranties. Lessee represents and warrants to
Lessor that (a) all Construction Agreements entered into by Lessee are in full
force and effect and are enforceable and no default, or event which would
constitute a default after notice or the passage of time, or both, exists with
respect to said Construction Agreements; (b) all copies of the Construction
Agreements delivered to Lessor are complete and correct; and (c) Lessee has not
assigned any of its rights under the Construction Agreements.

      3.02. Covenants. Lessee agrees (a) to pay and perform all obligations of
Lessee under the Construction Agreements; (b) to enforce the payment and
performance of all obligations of 


                                      H-2
   239
any other Person under the Construction Agreements; (c) not to revise, amend or
modify the existing Construction Agreements if such revision, amendment or
modification (either alone or together with all prior revisions, amendments or
modifications to such Construction Agreements) would result in Lessee's failure
to comply with the provisions of Section 3.01 of the Construction Agency
Agreement nor to enter into any future Construction Agreements without Lessor's
prior written approval which shall not be unreasonably withheld, except as
otherwise may be permitted by the Operative Documents; and (d) not to further
assign, for security or any other purposes, its rights under the Construction
Agreements without Lessor's prior written approval.

SECTION 4. MISCELLANEOUS.

      4.01. Notices. Except as otherwise specified herein, all notices,
requests, demands, consents, instructions or other communications to or upon
Lessee or Lessor under this Agreement shall be given as provided in Subparagraph
2.02(c) and Paragraph 7.01 of the Participation Agreement.

      4.02. Waivers; Amendments. Any term, covenant, agreement or condition of
this Agreement may be amended or waived only as provided in the Participation
Agreement. No failure or delay by any Lessor Party in exercising any right
hereunder shall operate as a waiver thereof or of any other right nor shall any
single or partial exercise of any such right preclude any other further exercise
thereof or of any other right. Unless otherwise specified in any such waiver or
consent, a waiver or consent given hereunder shall be effective only in the
specific instance and for the specific purpose for which given.

      4.03. Successors and Assigns. This Agreement shall be binding upon and
inure to the benefit of the Lessor Parties and Lessee and their permitted
successors and assigns; provided, however, that the Lessor Parties and Lessee
shall not sell, assign or delegate their respective rights and obligations
hereunder except as provided in the Participation Agreement.

      4.04. No Third Party Rights. Nothing expressed in or to be implied from
this Agreement is intended to give, or shall be construed to give, any Person,
other than the Lessor Parties and Lessee and their permitted successors and
assigns, any benefit or legal or equitable right, remedy or claim under or by
virtue of this Agreement or under or by virtue of any provision herein.

      4.05. Partial Invalidity. If at any time any provision of this Agreement
is or becomes illegal, invalid or unenforceable in any respect under the law or
any jurisdiction, neither the legality, validity or enforceability of the
remaining provisions of this Agreement nor the legality, validity or
enforceability of such provision under the law of any other jurisdiction shall
in any way be affected or impaired thereby.

      4.06. Governing Law. This Agreement shall be governed by and construed in
accordance with the laws of the State of California without reference to
conflicts of law rules.

                          [The signature page follows.]


                                       H-3
   240
      IN WITNESS WHEREOF, Lessee has caused this Agreement to be executed as of
the day and year first above written.

LESSEE:                                KLA-TENCOR CORPORATION



                                       By: _____________________________

                                           Name: _______________________

                                           Title: ______________________


                                      H-4
   241
                                    EXHIBIT A
                             CONSTRUCTION AGREEMENTS



                                      NONE


                                      H-5
   242
                                    EXHIBIT B
                       CONTRACTOR'S CONSENT TO ASSIGNMENT

      1.    Reference is made to (a) the property located at [___________] (the
"Property") and (b) the agreement[s] described in Attachment 1 hereto between
KLA-Tencor Corporation ("Lessee") and the undersigned ("Contractor").

      2.    Lessee has notified Contractor that, pursuant to an Assignment of
Construction Agreements dated as of November 12, 1997 between Lessee and Lease
Plan U.S.A., Inc. ("Lessor") (the "Assignment"), Lessee has assigned to Lessor
the agreement[s] described in Attachment 1 hereto and all future agreements and
contracts between Lessee and Contractor relating to the construction,
maintenance or repair of any improvements to the Property (collectively, the
"Construction Agreements").

      3.    Contractor hereby consents to the Assignment and agrees as follows
for the benefit of Lessor:

            (a)   Except with the prior written approval of Lessor, Contractor
      shall not perform any construction work pursuant to any change in the
      plans and specifications as set forth or attached to the Construction
      Agreements where such change would affect the structural integrity,
      quality of building material or equipment or overall efficiency of
      operating systems or utility systems of the improvements. The liens of
      Lessor's security interests shall have priority over any claim of lien of
      Contractor arising out of or in any way connected with any construction
      work performed by Contractor on the Property.

            (b)   If requested by Lessor in the exercise of Lessor's rights
      under the Assignment, Contractor shall continue to perform its obligations
      under the Construction Agreements in accordance with the terms thereof.
      Contractor acknowledges that Lessor may have no means of discovering when
      or if Contractor claims a default under the Construction Agreements and
      agrees that it will give Lessor prior written notice of any default
      claimed by Contractor under the Construction Agreements. Said notice shall
      set forth a description of the default and a request to Lessor to cure the
      same within thirty (30) days. Said notice shall be deemed served upon
      delivery or, if mailed, upon the first to occur of receipt or the
      expiration of seventy-two (72) hours after deposit in United States Postal
      Service certified mail, postage prepaid and addressed to the address of
      Lessor appearing below. No termination of the Construction Agreements by
      Contractor shall be binding upon Lessor unless Lessor has received such
      notice and has failed to cure the described default within said thirty
      (30) days. Contractor further acknowledges that, unless and until Lessor
      elects to exercise its rights under the Assignment and requests
      Contractor's performance under the Construction Agreements in writing,
      Lessor neither undertakes nor assumes any obligations or liability under
      the Construction Agreements.

            (c)   Contractor shall hold in trust all money disbursed to or
      otherwise received by Contractor from or on account of Lessee in
      connection with the construction of the 


                                      H-6
   243
      improvements and shall use such money solely for the payment of costs
      incurred in the construction of the improvements, including Contractor's
      fees, and for no other purpose, until all bills, claims and demands for
      such costs have been paid in full.

      IN WITNESS WHEREOF, Contractor has executed this Consent on this
___________ day of __________, ____.



                                       [________________________________]


                                       By: _____________________________

                                           Name: _______________________

                                           Title: ________________________



                                       Contractor's Address:

                                       [________________________________]
                                       [________________________________]
                                       [________________________________]
                                       [________________________________]

                                       Lessor's Address:

                                       Lease Plan U.S.A., Inc.
                                       c/o ABN AMRO Bank N.V.
                                       135 So. LaSalle Street
                                       Suite 711
                                       Chicago, IL  60603
                                       Attn:  David M. Shipley


                                      H-7
   244
                                                                  EXECUTION COPY



================================================================================


                      ASSIGNMENT OF CONSTRUCTION AGREEMENTS


                                       BY


                             KLA-TENCOR CORPORATION


                                   IN FAVOR OF


                             LEASE PLAN U.S.A., INC.




                                NOVEMBER 12, 1997


================================================================================


                                      H-8
   245
                                    EXHIBIT I

                              ASSIGNMENT OF LEASE

              ASSIGNMENT OF LEASE AGREEMENT AND PURCHASE AGREEMENT

      THIS ASSIGNMENT OF LEASE AGREEMENT AND PURCHASE AGREEMENT (this
"Assignment" herein), dated as of November 12, 1997, is executed by:

            (1)   LEASE PLAN U.S.A., INC., a Georgia corporation ("Lessor")

                                   in favor of

            (2)   ABN AMRO BANK N.V., as agent for the Participants under the
      Participation Agreement referred to in Recital B below (in such capacity,
      "Agent").

                                    RECITALS

      A.    KLA-Tencor Corporation, a Delaware corporation ("Lessee"), has
requested Lessor and the financial institutions which are "Participants" under
the Participation Agreement referred to in Recital B below (such financial
institutions to be referred to collectively as the "Participants") to provide to
Lessee a certain lease facility. Pursuant to such facility:

            (1)   Lessor would (a) acquire certain property designated by Lessee
      (either through purchase or lease), (b) lease to Lessee such property and
      certain other property currently held by Lessor, (c) appoint Lessee as
      Lessor's agent to make certain improvements to a portion of such property,
      (d) make advances to finance such improvements and to pay certain related
      expenses, and (e) grant to Lessee the right to purchase such property; and

            (2)   The Participants would participate in such lease facility by
      (a) funding the purchase prices and other advances to be made by Lessor
      and (b) acquiring participation interests in the rental and certain other
      payments to be made by Lessee.

      B.    Pursuant to a Participation Agreement dated of even date herewith
(the "Participation Agreement") among Lessee, Lessor, the Participants and
Agent, Lessor and the Participants have agreed to provide such lease facility
upon the terms and subject to the conditions set forth therein, including,
without limitation, the execution and delivery of (1) the Lease Agreement dated
as of November 12, 1997 between Lessee and Lessor (the "Lease Agreement"),
pursuant to which Lessee has leased from Lessor the lots, pieces, tracts and
parcels of land described in Exhibit A (the "Land") and the other property
described in the Lease Agreement (the "Property"), (2) the Purchase Agreement
dated as of November 12, 1997 between Lessee and Lessor (the "Purchase
Agreement"), pursuant to which Lessee may purchase the Property from Lessor
under certain circumstances, and (3) this Assignment.


                                      I-1
   246
                                    AGREEMENT

      NOW, THEREFORE, in consideration of the above Recitals and the mutual
covenants herein contained, the parties hereto hereby agree as follows:

SECTION 7. INTERPRETATION.

      7.01. Definitions. Unless otherwise indicated in this Assignment or any
other Operative Document, each term set forth in Schedule 1.01 to the
Participation Agreement, when used in this Assignment or any other Operative
Document, shall have the respective meaning given to that term in such Schedule
1.01 or in the provision of this Assignment or other document, instrument or
agreement referenced in such Schedule 1.01.

      7.02. Rules of Construction. Unless otherwise indicated in this Assignment
or any other Operative Document, the rules of construction set forth in Schedule
1.02 to the Participation Agreement shall apply to this Assignment and the other
Operative Documents.

SECTION 8. ASSIGNMENT.

      8.01. Assignment. As security for the Lessor Obligations, Lessor hereby
irrevocably and unconditionally grants, conveys, transfers and assigns to Agent,
for the benefit of the Participants and Agent, all estate, right, title and
interest of Lessor, whether now owned or hereafter acquired, in the Lease
Agreement and the Purchase Agreement, including all claims and rights to the
payment of money at any time arising in connection with any repudiation,
rejection or breach of either agreement by Lessee or a trustee or receiver of
Lessee in any bankruptcy, insolvency or similar proceeding.

      8.02. Receipt of Rents, Etc. Lessor hereby irrevocably designates Agent
(or its designee) to receive all Rents and other payments to be made by Lessee
under the Lease Agreement and the Purchase Agreement. Lessor shall direct (and
hereby directs) Lessee to deliver to Agent (or its designee), at its address set
forth in the Participation Agreement or at such other address or to such other
Person as Agent shall designate, all such payments, and no delivery thereof by
Lessee shall be of any force or effect unless made to Agent (or its designee),
as herein provided. Lessor and Agent agree that Lessee, in making such payments
to Agent pursuant to the directions contained in this Assignment and in reliance
on such directions shall be deemed to have satisfied its obligation for such
payments under the Lease Agreement.

      8.03. Irrevocability; Supplemental Instruments. Lessor agrees that (a)
this Assignment is irrevocable, (b) Lessor will not take any action under the
Lease Agreement or the Purchase Agreement or otherwise which is inconsistent
with this Assignment, (c) any action, assignment, designation or direction
inconsistent herewith shall be void and (d) Lessor will from time to time
execute and deliver all instruments of further assurance and do such further
acts as may be reasonably necessary or proper to carry out more effectively the
purpose of this Assignment.

      8.04. Validity. Lessor represents, warrants, covenants and agrees that (a)
Lessor has not assigned or executed any assignment of, and will not assign or
execute any assignment of, Lessor's estate, right, title or interest in the
Lease Agreement or the Purchase Agreement to 


                                      I-2
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anyone other than Agent, (b) any such assignment is void, and (c) Lessor has not
taken any action that impairs the rights of Agent hereunder.

      8.05. Lessor Remains Liable. The assignment made hereby is made for the
purpose of securing the Lessor Obligations only and does not (a) impair or
diminish in any way the obligations of Lessor under the Lease Agreement or the
Purchase Agreement or (b) obligate Agent (or its designee) or any Participant to
perform any of the obligations of Lessor under the Lease Agreement or the
Purchase Agreement. This Assignment shall not operate to cause Agent (or its
designee) to be regarded as a mortgagee in possession.

      8.06. Effect of Amendments. If the Lease Agreement or the Purchase
Agreement shall be amended, it shall continue to be subject to the provisions
hereof without the necessity of any further act by any of the parties hereto.

      8.07. Absolute Assignment. Lessor has, subject to and in accordance with
the terms and conditions of this Assignment, assigned and transferred unto Agent
all of Lessor's right, title and interest in and to all Rents and other amounts
now or hereafter payable by Lessee under the Lease Agreement and the Purchase
Agreement, it being intended to establish an absolute transfer and assignment,
subject to and in accordance with the terms and conditions of this Assignment,
of all such Rents and other amounts to Agent and not merely to grant a security
interest therein. Subject to the Lease Agreement, Agent (or its designee) may,
in Lessor's name and stead, operate the Property and rent, lease or let all or
any portion of the Property to any party or parties at such rental and upon such
terms as Agent (or its designee) shall, in its discretion, determine.

      8.08. Receivers. If, notwithstanding the terms of this Assignment, a
petition or order for sequestration of rents, or the appointment of a receiver
or some similar judicial action or order is deemed required under applicable
California law to allow Agent to continue to collect the Rents and other amounts
payable by Lessee under the Lease Agreement or the Purchase Agreement, then it
is agreed by Lessor that any proof of claim or similar document filed by Agent
in connection with the breach or rejection of the Lease Agreement or the
Purchase Agreement by Lessee thereunder or the trustee of any lessee under any
federal or state bankruptcy, insolvency or other similar law shall, for the
purpose of perfecting Agent's rights, be deemed to constitute action required
under such California law. Upon the occurrence and during the continuance of an
Event of Default, Lessor hereby consents to the appointment of a receiver for
Lessor's interest in the Property without regard to the solvency of Lessor or to
the collateral that may be available for the satisfaction of the Lessor
Obligations.

SECTION 9. MISCELLANEOUS.

      9.01. Notices. Except as otherwise specified herein, all notices,
requests, demands, consents, instructions or other communications to or upon
Lessor or Agent under this Assignment shall be given as provided in Paragraph
7.01 of the Participation Agreement.

      9.02. Waivers; Amendments. Any term, covenant, agreement or condition of
this Assignment may be amended or waived only as provided in the Participation
Agreement. No failure or delay by Agent in exercising any right hereunder shall
operate as a waiver thereof or of any other right nor shall any single or
partial exercise of any such right preclude any other


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further exercise thereof or of any other right. Unless otherwise specified
in any such waiver or consent, a waiver or consent given hereunder shall be
effective only in the specific instance and for the specific purpose for which
given.

      9.03. Successors and Assigns. This Assignment shall be binding upon and
inure to the benefit of the Lessor Parties and their permitted successors and
assigns; provided, however, that the Lessor Parties shall not sell, assign or
delegate their respective rights and obligations hereunder except as provided in
the Participation Agreement.

      9.04. No Third Party Rights. Nothing expressed in or to be implied from
this Assignment is intended to give, or shall be construed to give, any Person,
other than the Lessor Parties and their permitted successors and assigns, any
benefit or legal or equitable right, remedy or claim under or by virtue of this
Assignment or under or by virtue of any provision herein.

      9.05. Partial Invalidity. If at any time any provision of this Assignment
is or becomes illegal, invalid or unenforceable in any respect under the law or
any jurisdiction, neither the legality, validity or enforceability of the
remaining provisions of this Assignment nor the legality, validity or
enforceability of such provision under the law of any other jurisdiction shall
in any way be affected or impaired thereby.

      9.06. Governing Law. This Assignment shall be governed by and construed in
accordance with the laws of the State of California without reference to
conflicts of law rules.

      9.07. Counterparts. This Assignment may be executed in any number of
identical counterparts, any set of which signed by all the parties hereto shall
be deemed to constitute a complete, executed original for all purposes.

                          [The signature page follows.]


                                      I-4
   249
      IN WITNESS WHEREOF, Lessor has caused this Assignment to be executed as of
the day and year first above written.

LESSOR:                                LEASE PLAN U.S.A., INC.



                                       By: _____________________________

                                           Name: _______________________

                                           Title: ______________________


                                      I-5
   250
STATE OF CALIFORNIA                 )
                                    )        ss
COUNTY OF __________________        )


      On _____________, 1997, before me, ___________________ a Notary Public in
and for the State of California, personally appeared , personally known to me
(or proved to me on the basis of satisfactory evidence) to be the person(s)
whose name(s) is/are subscribed to the within instrument and acknowledged to me
that he/she/they executed the same in his/her/their authorized capacity(ies),
and that by his/her/their signature(s) on the instrument the person(s) or the
entity on behalf of which the person(s) acted, executed the instrument.



      Witness my hand and official seal.


[SEAL]




                                      I-6
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                                    EXHIBIT A

                                      LAND


                                      I-7
   252
                                    EXHIBIT B

                               LESSEE'S CONSENT TO
              ASSIGNMENT OF LEASE AGREEMENT AND PURCHASE AGREEMENT

                                November 12, 1997

Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
135 So. LaSalle Street, Suite 711
Chicago, IL  60603

ABN AMRO Bank N.V.,
  as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY  10019

      1.    Reference is made to the following:

            (a)   The Participation Agreement, dated as of November 12, 1997
      (the "Participation Agreement"), among KLA-Tencor Corporation ("Lessee"),
      Lease Plan U.S.A., Inc. ("Lessor"), the financial institutions listed in
      Schedule I to the Participation Agreement (the "Participants") and ABN
      AMRO Bank N.V., as agent for the Participants (in such capacity, "Agent");

            (b)   The Lease Agreement, dated as of November 12, 1997 (the "Lease
      Agreement"), between Lessee and Lessor;

            (c)   The Purchase Agreement, dated as of November 12, 1997 (the
      "Purchase Agreement"), between Lessee and Lessor; and

            (d)   The Assignment of Lease Agreement and Purchase Agreement,
      dated as of November 12, 1997 (the "Assignment of Lease"), executed by
      Lessor in favor of Agent.

Unless otherwise indicated, all terms defined in the Participation Agreement
have the same respective meanings when used herein.

      2.    Consent. Lessee hereby consents to the Assignment of Lease.

      3.    Payments. Lessee agrees to pay and deliver to Agent (or its
designee) all Rents and other amounts payable by Lessee under the Lease
Agreement and the Purchase Agreement in accordance with the terms thereof.
Lessee will not, for any reason whatsoever, seek to recover from Agent (or its
designee) any moneys paid to Agent (or its designee) by virtue of the Assignment
of Lease.


                                      I-8
   253
      4.    Lessee's Other Agreements. Lessee hereby further agrees with Lessor
and Agent as follows:

            (a)   Lessee agrees (i) to deliver to Agent (or its designee) and
      Lessor, at their addresses set forth in the Participation Agreement or at
      such other addresses as Agent or Lessor, as the case may be, may
      designate, duplicate originals or copies of all notices, undertakings,
      demands, statements, documents and other communications which Lessee is
      required or permitted to deliver pursuant to the Lease Agreement, the
      Purchase Agreement or the Assignment of Lease; (ii) that any notice
      delivered or declaration made to Lessee by Agent (or its designee)
      pursuant to the Lease Agreement or the Purchase Agreement shall be
      effective as a notice given or declaration made to Lessee by Lessor; (iii)
      that Agent (or its designee) shall not by reason of the Assignment of
      Lease be subject to any liability or obligation under the Lease Agreement
      or the Purchase Agreement except as set forth in the Assignment of Lease;
      and (iv) that any waiver, consent or approval by Lessor under the Lease
      Agreement or the Purchase Agreement shall not be valid unless approved in
      writing by Agent (or its designee).

            (b)   Lessee agrees to remain obligated under the Lease Agreement
      and the Purchase Agreement in accordance with their respective terms, and
      to take no action to terminate (other than in accordance with the terms
      thereof), annul, rescind or avoid the Lease Agreement, the Purchase
      Agreement or this Consent or to abate, reduce, offset, suspend or defer or
      make any counterclaim or raise any defense (other than the defense of
      payment to Agent (or its designee)) with respect to the Rents or other
      amounts payable thereunder or to cease paying such amounts to Agent (or
      its designee) as provided herein.

            (c)   Lessee hereby agrees that upon the occurrence of any Event of
      Default, Agent (or its designee) shall have the right to deliver a notice
      of default under the Lease Agreement, which shall be effective for all
      purposes under the Lease Agreement as if sent by Lessor.

            (d)   Lessee shall notify Agent (or its designee) at its address
      specified in the Participation Agreement, or such other address as Agent
      may designate, of any default by Lessor under the Lease Agreement and
      agrees that no such default shall entitle Lessee to terminate (other than
      in accordance with the terms of the Lease Agreement), annul, rescind or
      avoid the Lease Agreement or reduce or abate the Rents or other amounts
      payable thereunder.

      5.    Amendment or Termination; Agent's Designation. Lessee agrees that it
will not, unilaterally or by agreement, subordinate, amend, supplement, modify,
extend (except in accordance with the express terms thereof), discharge, waive
or terminate (other than in accordance with the terms thereof) the Lease
Agreement, the Purchase Agreement or this Consent without Agent's prior written
consent, and that any attempted subordination, amendment, supplement,
modification, extension, discharge, waiver or termination in violation of this
Section 5 without such consent shall be null and void. In the event that the
Lease Agreement or the Purchase Agreement shall be amended or supplemented as
herein permitted, the Lease Agreement or the Purchase Agreement, as so amended
or supplemented, shall continue to be subject to the provisions of the
Assignment of 


                                      I-9
   254
Lease and this Consent without the necessity of any further act by any of the
parties thereto or hereto.

      6.    Continuing Obligations of Lessor and Lessee. Neither the execution
and delivery of the Assignment of Lease, nor any action or inaction on the part
of Agent shall impair or diminish any obligations of Lessor or Lessee under the
Lease Agreement or the Purchase Agreement, and shall not impose on Agent (or its
designee) any such obligations, nor shall it impose on Agent (or its designee) a
duty to produce Rents or cause Agent to be a mortgagee or pledgee in possession
for any purpose. Except as specifically set forth in this Consent, none of the
terms of the Assignment of Lease shall impose upon Lessee any greater
obligations than those set forth in the Lease Agreement, the Purchase Agreement
and the other Operative Documents.

      7.    Partial Invalidity. If at any time any provision of this Consent is
or becomes illegal, invalid or unenforceable in any respect under the law of any
jurisdiction, neither the legality, validity or enforceability of the remaining
provisions of this Consent nor the legality, validity or enforceability of such
provision under the law of any other jurisdiction shall in any way be affected
or impaired thereby.

      8.    Governing Law. This Consent shall be governed by and construed in
accordance with the laws of the State of California without reference to
conflicts of law rules.

                            [SIGNATURE PAGE FOLLOWS]


                                      I-10
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      IN WITNESS WHEREOF, Lessee has executed this Consent on the date set forth
above.

      LESSEE:                          KLA-TENCOR CORPORATION



                                       By: _____________________________

                                           Name: _______________________

                                           Title: ______________________


                                      I-11
   256
RECORDING REQUESTED BY AND

WHEN RECORDED RETURN TO:

Thomas Y. Coleman, Esq.
Orrick, Herrington & Sutcliffe LLP
Old Federal Reserve Bank Building
400 Sansome Street
San Francisco, California 94111


================================================================================



                          ASSIGNMENT OF LEASE AGREEMENT
                             AND PURCHASE AGREEMENT


                                       BY


                             LEASE PLAN U.S.A., INC.


                                   IN FAVOR OF


                               ABN AMRO BANK N.V.,
                          AS AGENT FOR THE PARTICIPANTS


                                NOVEMBER 12, 1997



================================================================================


                                      I-12
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                                   EXHIBIT J

                              LESSOR DEED OF TRUST

                           CONSTRUCTION DEED OF TRUST

      THIS CONSTRUCTION DEED OF TRUST dated as of November 12, 1997 (this "Deed
of Trust"), is made by LEASE PLAN U.S.A., INC., a Georgia corporation, as
trustor ("Lessor"), with an address at 135 South LaSalle Street, Chicago, IL
60603, to SANTA CLARA LAND TITLE COMPANY, as trustee ("Trustee"), in favor of
ABN AMRO BANK N.V., with an address at 1325 Avenue of the Americas, 9th Floor,
New York, NY 10019, in its capacity as Agent, as beneficiary (in such capacity,
"Agent"), under the Participation Agreement, dated of even date herewith (as
amended, supplemented or otherwise modified from time to time, the
"Participation Agreement"), among KLA-Tencor Corporation, a Delaware corporation
("Lessee"), Lessor, Agent, and the financial institutions from time to time
parties to the Participation Agreement (the "Participants").

SECTION 1. INTERPRETATION.

      1.01. Definitions. Unless otherwise indicated in this Deed of Trust or any
other Operative Document, each term set forth in Schedule 1.01 to the
Participation Agreement, when used in this Deed of Trust or any other Operative
Document, shall have the respective meaning given to that term in such Schedule
1.01 or in the provision of this Deed of Trust or other document, instrument or
agreement referenced in such Schedule 1.01. All terms defined in the UCC shall
have the respective meanings given to those terms in the UCC.

      1.02. Rules of Construction. Unless otherwise indicated in this Deed of
Trust or any other Operative Document, the rules of construction set forth in
Schedule 1.02 to the Participation Agreement shall apply to this Deed of Trust
and the other Operative Documents.

SECTION 2. GRANT IN TRUST

      2.01. Property. To secure payment of the Secured Obligations (as defined
below), Lessor does hereby GRANT, CONVEY, SELL, TRANSFER, ASSIGN AND SET OVER
UNTO TRUSTEE, IN TRUST FOR THE BENEFIT OF AGENT, WITH POWER OF SALE AND RIGHT OF
ENTRY AND POSSESSION, all of Lessor's right, title and interest, whether now
owned or hereafter acquired, in or to the following property and rights listed
below (such right, title and interest in such property and rights hereinafter
collectively referred to as the "Property") to the extent of Lessor's estate,
right, title and interest therein, thereto or thereunder:

            (a)   All lots, pieces, tracts and parcels of land described in
      Exhibit A together with such additional parcels of real property as may be
      added to Exhibit A from time to time during the term hereof (the "Land");

            (b)   All Improvements and Appurtenant Rights;

            (c)   All Related Goods (including those described in Exhibit B and
      in each Exhibit B Supplement), Related Permits and Related Agreements; and


                                      J-1
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            (d)   All accessions and accretions to and replacements and
      substitutions for the foregoing.

SECTION 3. OBLIGATIONS SECURED

      3.01. Obligations Secured. Lessor makes this grant and assignment for the
purpose of securing the following obligations (hereinafter "Secured
Obligations"):

            (a)   Full and punctual payment, performance and observance by
      Lessor of the Lessor Obligations; and

            (b)   All modifications, extensions and renewals of any of the
      obligations secured hereby, however evidenced, including, without
      limitation: (i) modifications of the required payment, deferring or
      accelerating payment dates wholly or partly; or (ii) amendments,
      modifications, extensions or renewals of this Deed of Trust, the
      Participation Agreement or any of the other Operative Documents.

SECTION 4. REPRESENTATIONS, WARRANTIES, COVENANTS AND DUTIES OF THE PARTIES.

      4.01. Representations and Warranties. Lessor represents and warrants to
Agent as follows:

            (a)   Lessor is the legal and beneficial owner of the Property (or,
      in the case of after-acquired Property, at the time Lessor acquires rights
      in the Property, will be the legal and beneficial owner thereof).

            (b)   Lessor has not transferred to any other Person any of its
      right, title or interest in the Property, whether by way of Lien or
      otherwise.

            (c)   Lessor's chief executive office is located at 180 Interstate
      Parkway North, Atlanta, Georgia 30339.

      4.02. Covenants. Lessor hereby covenants to Agent as follows:

            (a)   Lessor shall promptly procure, execute and deliver to Agent
      all documents, instruments and agreements and perform all acts which are
      necessary or desirable, or which Agent may request, to establish,
      maintain, preserve, protect and perfect the Property, the Lien granted to
      Agent therein and the first priority of such Lien or to enable Agent to
      exercise and enforce its rights and remedies hereunder with respect to any
      Property.

            (b)   Lessor shall not sell, transfer or assign any of its right,
      title or interest in the Property to any Person (other than Agent),
      whether by way of Lien or otherwise.

            (c)   Without prompt written notice to Agent, Lessor shall not
      change Lessor's name or chief executive office.


                                      J-2
   259
      4.03. Damages; Insurance and Condemnation Proceeds.

            (a)   Lessor shall give Agent prompt written notice of the
      occurrence of any casualty affecting, or the institution of any
      proceedings for eminent domain or for the condemnation of, the Property or
      any portion thereof. Agent may participate in any such claims or
      proceedings, and Agent is hereby authorized, in its own name or in
      Lessor's name, to adjust any loss covered by insurance or any condemnation
      claim or cause of action, and to settle or compromise any claim or cause
      of action in connection therewith, and Lessor shall from time to time
      deliver to Agent any and all further assignments and other instruments
      required to permit such participation. The provisions regarding the
      adjustment of any loss covered by insurance or any condemnation claim or
      cause of action, and to settlement or compromise of any claim or cause of
      action in connection therewith provided in this Section 4.03(a) are
      subject to the adjustment, settlement and compromise provisions set forth
      in the Lease Agreement. In the event of any conflict, the adjustment,
      settlement and compromise provisions as provided in the Lease Agreement
      shall govern.

            (b)   The following rights, claims and amounts are hereby absolutely
      and irrevocably assigned to and shall be paid to Agent: (i) all awards of
      damages and all other compensation payable directly or indirectly by
      reason of a condemnation or proposed condemnation for public or private
      use affecting all or any part of, or any interest in, the Property; (ii)
      all other claims and awards for damages to or decrease in value of all or
      any part of, or any interest in, the Property; (iii) all proceeds of any
      insurance policies payable by reason of loss sustained to all or any part
      of the Property; and (iv) all interest which may accrue on any of the
      foregoing (collectively, "Loss Proceeds"). The provisions regarding Loss
      Proceeds provided in this Section 4.03(b) are subject to the insurance and
      condemnation provisions set forth in the Lease Agreement. In the event of
      any conflict, the insurance and condemnation provisions as provided in the
      Lease Agreement shall govern.

      4.04. Acceptance of Trust; Powers and Duties of Trustee. Trustee accepts
this trust when this Deed of Trust is recorded. From time to time upon written
request of Agent and presentation of this Deed of Trust, or a certified copy
thereof, for endorsement, and without affecting the personal liability of any
person for payment of any indebtedness or performance of any Secured Obligation,
Trustee may, without liability therefor and without notice: (a) reconvey all or
any part of the Property; (b) consent to the making of any map or plat thereof;
(c) join in granting any easement thereon; (d) join in any declaration of
covenants and restrictions; or (e) join in any extension agreement or any
agreement subordinating the lien or charge hereof. Except as may otherwise be
required by applicable law, Trustee or Agent may from time to time apply to any
court of competent jurisdiction for aid and direction in the execution of the
trusts hereunder and the enforcement of the rights and remedies available
hereunder, and Trustee or Agent may obtain orders or decrees directing or
confirming or approving acts in the execution of said trusts and the enforcement
of said remedies. Trustee has no obligation to notify any party of any pending
sale or any action or proceeding (including, without limitation, actions in
which Lessor, Agent or Trustee shall be a party) unless held or commenced and
maintained by Trustee under this Deed of Trust. Trustee shall not be obligated
to perform any act required of it 


                                      J-3
   260
hereunder unless the performance of the act is requested in writing and Trustee
is reasonably indemnified and held harmless against loss, cost, liability and
expense.

      4.05. Substitution of Trustee. From time to time, by a writing signed and
acknowledged by Agent and recorded in the Office of the Recorder of the County
in which the Property is situated, Agent may appoint another trustee to act in
the place and stead of Trustee or any successor. Such writing shall set forth
any information required by law. The recordation of such instrument of
substitution shall discharge Trustee herein named and shall appoint the new
trustee as the trustee hereunder with the same effect as if originally named
trustee herein. A writing recorded pursuant to the provisions of this paragraph
shall be conclusive proof of the proper substitution of such new trustee.

      4.06. Partial and Full Reconveyance. Agent may release, for such
consideration or none, as it may require, any portion of the Property without,
as to the remainder of the Property, in any way impairing or affecting the lien,
security interest and priority herein provided to the Agent as to any other lien
holder or secured party. Further, upon satisfaction in full of the Secured
Obligations, or upon Agent's written request, and upon surrender of this Deed of
Trust or certified copy thereof and any note, instrument or instruments setting
forth all obligations secured hereby to Trustee for cancellation, Trustee shall
reconvey, without warranty, the Property or that portion thereof then held
hereunder. The recitals of any matters or facts in any reconveyance executed
hereunder shall be conclusive proof of the truthfulness thereof. To the extent
permitted by law, the reconveyance may describe the grantee as "the person or
persons legally entitled thereto." Neither Agent nor Trustee shall have any duty
to determine the rights of persons claiming to be rightful grantees of any
reconveyance.

      4.07. Releases, Extensions, Modifications and Additional Security. Agent
may, from time to time, release any person or entity from liability for the
payment or performance of any Secured Obligation, take any action or make any
agreement extending the maturity or otherwise altering the terms or increasing
the amount of any Secured Obligation, or accept additional security or release
all or a portion of the Property and other security for the Secured Obligations.
None of the foregoing actions shall release or impair the priority of the lien
of this Deed of Trust upon the Property.

SECTION 5. DEFAULT; REMEDIES.

      5.01. Event of Default. The occurrence of any of the following events
shall be deemed an event of default ("Event of Default") hereunder:

            (a)   The occurrence of an Event of Default as defined in the Lease
      Agreement; or

            (b)   Lessor shall fail to observe, perform or discharge any of
      Lessor's Obligations, and (i) such failure shall remain uncured for thirty
      (30) days after written notice thereof shall have been given to Lessor by
      Agent, or (ii) if such failure is of such a nature that it cannot be cured
      within such thirty (30) day period, Lessor shall fail to commence to cure
      such failure within such thirty (30) day period or shall fail to
      diligently prosecute such curative action thereafter.


                                      J-4
   261
      5.02. Rights and Remedies. At any time after the occurrence and during the
continuance of an Event of Default, Agent and Trustee shall each have all of the
following rights and remedies:

            (a)   Appointment of a Receiver. To apply to any court of competent
      jurisdiction for, and obtain appointment of, a receiver for the Property.

            (b)   Specific Performance. To bring an action in any court of
      competent jurisdiction to obtain specific enforcement of any of the
      covenants or agreements of Lessor in this Deed of Trust or any of the
      other Operative Documents.

            (c)   Collection of Issues and Profits. To collect Issues and
      Profits.

            (d)   Protection of Property. To enter, take possession of, manage
      and operate all or any part of the Property or take any other actions
      which it reasonably determines are necessary to protect the Property and
      the rights and remedies of Agent under this Deed of Trust and the other
      Operative Documents, including (i) taking and possessing all of Lessor's
      books and records; (ii) entering into, enforcing, modifying, or canceling
      subleases on such terms and conditions as Agent may consider proper; (iii)
      obtaining and evicting tenants; (iv) fixing or modifying sublease rents;
      (v) collecting and receiving any payment of money owing to Lessee; (vi)
      completing any unfinished Improvements; and/or (vii) contracting for and
      making repairs and alterations.

            (e)   Uniform Commercial Code Remedies. To exercise any or all of
      the remedies granted to a secured party under the California Uniform
      Commercial Code.

            (f)   Judicial Foreclosure. To bring an action in any court of
      competent jurisdiction to foreclose the security interest in the Property
      granted to Agent by this Deed of Trust or any of the other Operative
      Documents.

            (g)   Power of Sale. To cause some or all of the Property, including
      any Personal Property Collateral, to be sold under a power of sale or
      otherwise disposed of in any combination and in any manner permitted by
      applicable Governmental Rules.

                  (i)   Sales of Personal Property. Agent may dispose of any
            Personal Property Collateral separately from the sale of Real
            Property Collateral, in any manner permitted by Division 9 of the
            California Uniform Commercial Code, including any public or private
            sale, or in any manner permitted by any other applicable
            Governmental Rule. Any proceeds of any such disposition shall not
            cure any Event of Default or reinstate any Lessor Obligation for
            purposes of Section 2924c of the California Civil Code. In
            connection with any such sale or other disposition, Lessor agrees
            that the following procedures constitute a commercially reasonable
            sale:

                        (A)   Agent shall mail written notice of the sale to
                  Lessor not later than thirty (30) days prior to such sale.


                                      J-5
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                        (B)   Once per week during the three weeks immediately
                  preceding such sale, Agent will publish notice of the sale in
                  a local daily newspaper of general circulation.

                        (C)   Upon receipt of any written request, Agent will
                  make the Property available to any bona fide prospective
                  purchaser for inspection during reasonable business hours.

                        (D)   Notwithstanding anything to the contrary herein,
                  Agent shall be under no obligation to consummate a sale if, in
                  its judgment, none of the offers received by it equals the
                  fair value of the Property offered for sale.

                        (E)   If Agent so requests, Lessor shall assemble all of
                  the Personal Property Collateral and make it available to
                  Agent at the site of the Land. Regardless of any provision of
                  this Deed of Trust or any other Operative Document, Agent
                  shall not be considered to have accepted any property other
                  than cash or immediately available funds in satisfaction of
                  any Lessor Obligation, unless Agent has given express written
                  notice of its election of that remedy in accordance with
                  California Uniform Commercial Code Section 9505.

            The foregoing procedures do not constitute the only procedures that
            may be commercially reasonable.

                  (ii)  Agent's Sales of Real Property or Mixed Collateral.
            Agent may choose to dispose of some or all of the Property which
            consists solely of Real Property Collateral in any manner then
            permitted by applicable Governmental Rules, including without
            limitation a nonjudicial trustee's sale pursuant to California Civil
            Code ss.ss. 2924 et seq. In its discretion, Agent may also or
            alternatively choose to dispose of some or all of the Property, in
            any combination consisting of both Real Property Collateral and
            Personal Property Collateral, together in one sale to be held in
            accordance with the law and procedures applicable to real property,
            as permitted by Section 9501(4) of the California Uniform Commercial
            Code. Lessor agrees that such a sale of Personal Property Collateral
            together with Real Property Collateral constitutes a commercially
            reasonable sale of the Personal Property Collateral. (For purposes
            of this power of sale, either a sale of Real Property Collateral
            alone, or a sale of both Real Property Collateral and Personal
            Property Collateral together in accordance with California Uniform
            Commercial Code Section 9501(4), will sometimes be referred to as an
            "Agent's Sale.")

                        (A)   Before any Agent's Sale, Agent shall give such
                  notice of default and election to sell as may then be required
                  by applicable Governmental Rules.


                                      J-6
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                        (B)   When all time periods then legally mandated have
                  expired, and after such notice of sale as may then be legally
                  required has been given, Agent shall sell the property being
                  sold at a public auction to be held at the time and place
                  specified in the notice of sale.

                        (C)   Agent shall have no obligation to make demand on
                  Lessor before any Agent's Sale.

                        (D)   From time to time in accordance with then
                  applicable law, Agent may postpone any Agent's Sale by public
                  announcement at the time and place noticed for that sale.

                        (E)   At any Agent's Sale, Agent shall sell to the
                  highest bidder at public auction for cash in lawful money of
                  the United States.

                        (F)   Agent shall execute and deliver to the
                  purchaser(s) a deed or deeds conveying the Property being sold
                  without any covenant or warranty whatsoever, express or
                  implied. The recitals in any such deed of any matters or
                  facts, including any facts bearing upon the regularity or
                  validity of any Agent's Sale, shall be conclusive proof of
                  their truthfulness. Any such deed shall be conclusive against
                  all Persons as to the facts recited in it.

            (h)   Foreclosure Sales.

                  (i)   Single or Multiple. If the Property consists of more
            than one lot, parcel or item of property, Agent may:

                        (A)   Designate the order in which the lots, parcels
                  and/or items shall be sold or disposed of or offered for sale
                  or disposition; and

                        (B)   Elect to dispose of the lots, parcels and/or items
                  through a single consolidated sale or disposition to be held
                  or made under the power of sale granted under this Deed of
                  Trust, or in connection with judicial proceedings, or by
                  virtue of a judgment and decree of foreclosure and sale; or
                  through two or more such sales or dispositions; or in any
                  other manner Agent may deem to be in its best interests (any
                  such sale or disposition, a "Foreclosure Sale;" any two or
                  more, "Foreclosure Sales").

            If Agent chooses to have more than one Foreclosure Sale, Agent at
            its option may cause the Foreclosure Sales to be held simultaneously
            or successively, on the same day, or on such different days and at
            such different times and in such order as it may deem to be in its
            best interests. No Foreclosure Sale shall terminate or affect the
            security interests granted to Agent in the Property by this Deed of
            Trust on any part of the Property which has not been sold, until all
            of the Lessor Obligations have been performed in full.


                                      J-7
   264
                  (ii)  Credit Bids. At any Foreclosure Sale, any Person,
            Participant or Agent may bid for and acquire the Property or any
            part of it to the extent permitted by then applicable Governmental
            Rules. Instead of paying cash for that property, Agent may settle
            for the purchase price by crediting the sales price of the Property
            against the Lessor Obligations in any order and proportions as Agent
            in its sole discretion may choose.

            (i)   Other Rights and Remedies. To exercise any other right, power
      or remedy permitted to it by any applicable Governmental Rule, either by
      suit in equity or by action at law, or both.

      5.03. Remedies Cumulative. The rights and remedies of Agent under this
Deed of Trust and the other Operative Documents are cumulative and may be
exercised singularly, successively, or together.

      5.04. No Cure or Waiver. The exercise by Agent of any of its other rights
and remedies under this Deed of Trust or any other Operative Document (including
the collection of Issues and Profits) shall not constitute a cure or waiver of
any Event of Default or nullify the effect of any notice of default or sale,
unless and until all Lessor Obligations are performed in full.

      5.05. Exercise of Rights and Remedies. The rights and remedies provided to
Agent under this Deed of Trust may be exercised by Agent itself, by a
court-appointed receiver or by any other Person appointed by any of the
foregoing to act on its behalf. All of the benefits afforded to Agent under this
Deed of Trust and the other Operative Documents shall accrue to the benefit of
the Participants to the extent provided in Subparagraph 2.02(c) of the
Participation Agreement.

SECTION 6. MISCELLANEOUS PROVISIONS

      6.01. Notices. Except as otherwise specified herein, all notices,
requests, demands, consents, instructions or other communications to or upon
Lessor or Agent under this Deed of Trust shall be given as provided in Paragraph
7.01 of the Participation Agreement.

      6.02. Waivers; Amendments. Any term, covenant, agreement or condition of
this Deed of Trust may be amended or waived only as provided in the
Participation Agreement. No failure or delay by Agent in exercising any right
hereunder shall operate as a waiver thereof or of any other right nor shall any
single or partial exercise of any such right preclude any other further exercise
thereof or of any other right. Unless otherwise specified in any such waiver or
consent, a waiver or consent given hereunder shall be effective only in the
specific instance and for the specific purpose for which given.

      6.03. Successors and Assigns. This Deed of Trust shall be binding upon and
inure to the benefit of the Lessor Parties and their permitted successors and
assigns; provided, however, that the Lessor Parties shall not sell, assign or
delegate their respective rights and obligations hereunder except as provided in
the Participation Agreement.

      6.04. No Third Party Rights. Nothing expressed in or to be implied from
this Deed of Trust is intended to give, or shall be construed to give, any
Person, other than the Lessor Parties 


                                      J-8
   265
and their permitted successors and assigns, any benefit or legal or equitable
right, remedy or claim under or by virtue of this Deed of Trust or under or by
virtue of any provision herein.

      6.05. Partial Invalidity. If at any time any provision of this Deed of
Trust is or becomes illegal, invalid or unenforceable in any respect under the
law or any jurisdiction, neither the legality, validity or enforceability of the
remaining provisions of this Deed of Trust nor the legality, validity or
enforceability of such provision under the law of any other jurisdiction shall
in any way be affected or impaired thereby.

      6.06. Governing Law. This Deed of Trust shall be governed by and construed
in accordance with the laws of the State of California without reference to
conflicts of law rules.

      6.07. Counterparts. This Deed of Trust may be executed in any number of
identical counterparts, any set of which signed by all the parties hereto shall
be deemed to constitute a complete, executed original for all purposes.

      6.08. Further Assurances. Lessor shall, upon demand by Agent or Trustee,
execute, acknowledge (if appropriate) and deliver any and all documents and
instruments and do or cause to be done all further acts reasonably necessary or
appropriate to effectuate the provisions hereof.

      6.09. Merger. No merger shall occur as a result of Agent's acquiring any
other estate in, or any other lien on, the Property unless Agent consents to a
merger in writing.

      6.10. Waiver of Marshalling Rights. Lessor, for itself and for all parties
claiming through or under Lessor, and for all parties who may acquire a lien on
or interest in the Property, hereby waives all rights to have the Property
and/or any other property which is now or later may be security for any Secured
Obligation marshalled upon any foreclosure of this Deed of Trust or on a
foreclosure of any other security for any of the Secured Obligations.

      6.11. Exhibits. Exhibit A is incorporated into this Deed of Trust by this
reference.

      6.12  Subordinate Deed of Trust. This Deed of Trust is junior and
subordinate to the Lease Agreement and the Purchase Agreement.

                  [Remainder of page intentionally left blank.]


                                      J-9
   266
      IN WITNESS WHEREOF, Lessor has caused this Deed of Trust to be executed as
of the day and year first above written.

                                       LEASE PLAN U.S.A., INC.,
                                       a Georgia  corporation



                                       By: _____________________________

                                           Name: _______________________

                                           Title: ______________________


                      (ALL SIGNATURES MUST BE ACKNOWLEDGED)


                                      J-10
   267
STATE OF CALIFORNIA         )
                            )
COUNTY OF________________   )

      On ___________ ___, 1997 before me, _______________________, a Notary
Public in and for the State of California, personally appeared
_______________________________, personally known to me (or proved to me on the
basis of satisfactory evidence) to be the person(s) whose name(s) is/are
subscribed to the within instrument and acknowledged to me that he/she/they
executed the same in his/her/their authorized capacity(ies), and that by
his/her/their signature(s) on the instrument the person(s), or the entity upon
behalf of which the person(s) acted, executed the instrument.

      WITNESS my hand and official seal.

      [SEAL]



                                            ____________________________________


                                      J-11
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                                    EXHIBIT A

                          LEGAL DESCRIPTION OF THE LAND

ALL THAT CERTAIN REAL PROPERTY LOCATED IN THE COUNTY OF SANTA CLARA, CALIFORNIA,
DESCRIBED AS FOLLOWS:





APN:  __________


                                      J-12
   269
RECORDING REQUESTED BY
AND WHEN RECORDED RETURN TO:

Thomas Y. Coleman, Esq.
Orrick, Herrington & Sutcliffe LLP
Old Federal Reserve Bank Building
400 Sansome Street
San Francisco, California  94111


- --------------------------------------------------------------------------------


                           CONSTRUCTION DEED OF TRUST

                          DATED AS OF NOVEMBER 12, 1997

                                       BY

                            LEASE PLAN U.S.A., INC.,

                              AS TRUSTOR ("LESSOR")

                                       TO

                         SANTA CLARA LAND TITLE COMPANY,

                                   AS TRUSTEE

                               FOR THE BENEFIT OF

                          ABN AMRO BANK N.V., AS AGENT,

                            AS BENEFICIARY ("AGENT")


                        RELATING TO PROPERTY SITUATED IN:

                         SANTA CLARA COUNTY, CALIFORNIA


                                      J-13
   270
                                    EXHIBIT K

                           LESSOR SECURITY AGREEMENT

      THIS LESSOR SECURITY AGREEMENT (this "Agreement" herein), dated as of
November 12, 1997, is executed by:

            (1)   LEASE PLAN U.S.A., INC., a Georgia corporation ("Lessor"),

                                   in favor of

            (2)   ABN AMRO BANK N.V., as agent for the Participants under the
      Participation Agreement referred to in Recital B below (in such capacity,
      "Agent").

                                    RECITALS

      A.    KLA-Tencor Corporation, a Delaware corporation ("Lessee"), has
requested Lessor and the financial institutions which are "Participants" under
the Participation Agreement referred to in Recital B below (such financial
institutions to be referred to collectively as the "Participants") to provide to
Lessee a certain lease facility. Pursuant to such facility:

            (1)   Lessor would (a) acquire certain property designated by Lessee
      (either through purchase or lease), (b) lease to Lessee such property and
      certain other property currently held by Lessor, (c) appoint Lessee as
      Lessor's agent to make certain improvements to a portion of such property,
      (d) make advances to finance such improvements and to pay certain related
      expenses, and (e) grant to Lessee the right to purchase such property; and

            (2)   The Participants would participate in such lease facility by
      (a) funding the purchase prices and other advances to be made by Lessor
      and (b) acquiring participation interests in the rental and certain other
      payments to be made by Lessee.

      B.    Pursuant to a Participation Agreement dated of even date herewith
(the "Participation Agreement") among Lessee, Lessor, the Participants and
Agent, Lessor and the Participants have agreed to provide such lease facility
upon the terms and subject to the conditions set forth therein, including,
without limitation, the execution and delivery of this Agreement.

                                    AGREEMENT

      NOW, THEREFORE, in consideration of the above Recitals and the mutual
covenants herein contained, the parties hereto hereby agree as follows:

SECTION 1. INTERPRETATION.

      1.01. Definitions. Unless otherwise indicated in this Agreement or any
other Operative Document, each term set forth in Schedule 1.01 to the
Participation Agreement, when used in this Agreement or any other Operative
Document, shall have the respective meaning given to


                                      K-1
   271
that term in such Schedule 1.01 or in the provision of this Agreement or other
document, instrument or agreement referenced in such Schedule 1.01. All terms
defined in the UCC shall have the respective meanings given to those terms in
the UCC.

      1.02. Rules of Construction. Unless otherwise indicated in this Agreement
or any other Operative Document, the rules of construction set forth in Schedule
1.02 to the Participation Agreement shall apply to this Agreement and the other
Operative Documents.

SECTION 2. GRANT OF SECURITY INTEREST.

      2.01. Grant. As security for the Lessor Obligations, Lessor hereby
irrevocably and unconditionally pledges and assigns to Agent, for the benefit of
the Participants and Agent, and grants to Agent, for the benefit of the
Participants and Agent, a security interest in all estate, right, title and
interest of Lessor, whether now owned or hereafter acquired, in and to the
following property (such estate, right, title and interest in such property
herein, collectively and severally, the "Lessor Collateral"): 

            (a)   Operative Documents. The Participation Agreement, the
      Construction Agency Agreement, the Purchase Agreement, the Lessee Security
      Documents and all other Operative Documents (other than the Lease
      Agreement); all exhibits, schedules and other attachments thereto; and all
      documents, instruments or agreements issued or executed in replacement
      thereof; each as amended, modified and supplemented from time to time and
      in effect at any given time;

            (b)   Collateral. All Collateral for the Lessee Obligations under
      the Operative Documents; and

            (c)   Proceeds. All proceeds of the foregoing (including, without
      limitation, whatever is receivable or received when Lessor Collateral or
      proceeds is sold, collected, exchanged, returned, substituted or otherwise
      disposed of, whether such disposition is voluntary or involuntary,
      including rights to payment and return premiums and insurance proceeds
      under insurance with respect to any Lessor Collateral, and all rights to
      payment with respect to any cause of action affecting or relating to the
      Lessor Collateral).

SECTION 3. REPRESENTATIONS, WARRANTIES AND COVENANTS OF LESSOR.

      3.01. Representations and Warranties. Lessor represents and warrants to
Agent and the Participants as follows:

            (a)   Lessor is the legal and beneficial owner of the Lessor
      Collateral (or, in the case of after-acquired Lessor Collateral, at the
      time Lessor acquires rights in the Lessor Collateral, will be the legal
      and beneficial owner thereof).

            (b)   Lessor has not transferred to any other Person any of its
      right, title or interest in the Lessor Collateral, whether by way of Lien
      or otherwise.


                                      K-2
   272
            (c)   Lessor's chief executive office is located at 180 Interstate
      Parkway North, Atlanta, Georgia 30339.

      3.02. Covenants. Lessor hereby covenants to Agent and the Participants as
follows:

            (a)   Lessor shall promptly procure, execute and deliver to Agent
      all documents, instruments and agreements and perform all acts which are
      necessary or desirable, or which Agent may request, to establish,
      maintain, preserve, protect and perfect the Lessor Collateral, the Lien
      granted to Agent therein and the first priority of such Lien or to enable
      Agent to exercise and enforce its rights and remedies hereunder with
      respect to any Lessor Collateral.

            (b)   Lessor shall not sell, transfer or assign any of its right,
      title or interest in the Lessor Collateral to any Person (other than
      Agent), whether by way of Lien or otherwise.

            (c)   Without prompt written notice to Agent, Lessor shall not
      change Lessor's name or chief executive office.

SECTION 4. RIGHTS AND REMEDIES OF AGENT.

      4.01. Authorized Action by Agent. Lessor hereby irrevocably appoints Agent
as its attorney-in-fact and agrees that Agent may perform (but Agent shall not
be obligated to and shall incur no liability to Lessor or any third party for
failure so to do) any act which Lessor is obligated by this Agreement to
perform, and to exercise such rights and powers as Lessor might exercise with
respect to the Lessor Collateral, including, without limitation, the right to
(a) collect by legal proceedings or otherwise and endorse, receive and receipt
for all dividends, interest, payments, proceeds and other sums and property now
or hereafter payable on or on account of the Lessor Collateral; (b) enter into
any extension, reorganization, deposit, merger, consolidation or other agreement
pertaining to, or deposit, surrender, accept, hold or apply other property in
exchange for the Lessor Collateral; (c) insure, process, preserve and enforce
the Lessor Collateral; (d) make any compromise or settlement, and take any
action it deems advisable, with respect to the Lessor Collateral; (e) pay any
Indebtedness of Lessor relating to the Lessor Collateral; and (f) execute UCC
financing statements. Lessor agrees that such care as Agent gives to the
safekeeping of its own property of like kind shall constitute reasonable care of
the Lessor Collateral when in Agent's possession; provided, however, that Agent
shall not be required to make any presentment, demand or protest, or give any
notice and need not take any action to preserve any rights against any prior
party or any other Person in connection with the Lessor Obligations or with
respect to the Lessor Collateral.

      4.02. Other Rights and Remedies Upon Default. In addition to all other
rights and remedies granted to Agent by this Agreement and the other Operative
Documents, the UCC and other applicable Governmental Rules, Agent may, if Lessor
fails to perform any of the Lessor Obligations, exercise any one or more of the
following rights and remedies: (a) collect, receive, appropriate or realize upon
the Lessor Collateral or otherwise foreclose or enforce Agent's security
interests in any or all Lessor Collateral in any manner permitted by applicable
Governmental Rules or in this Security Agreement; (b) notify Lessee to make any
or all 


                                      K-3
   273
payments to be made by Lessee under the Operative Documents to Agent; (c) sell
or otherwise dispose of any or all Lessor Collateral at one or more public or
private sales, whether or not such Lessor Collateral is present at the place of
sale, for cash or credit or future delivery, on such terms and in such manner as
Agent may determine; (d) require Lessor to assemble the Lessor Collateral and
make it available to Agent at a place to be designated by Agent; and (e) prior
to the disposition of the Lessor Collateral, store, process, repair or
recondition any Lessor Collateral consisting of goods, perform any obligations
and enforce any rights of Lessor under any Operative Documents or otherwise
prepare and preserve Lessor Collateral for disposition in any manner and to the
extent Agent deems appropriate. In any case where notice of any sale or
disposition of any Lessor Collateral is required, Lessor hereby agrees that
thirty (30) days notice of such sale or disposition is reasonable.

SECTION 5. MISCELLANEOUS.

      5.01. Notices. Except as otherwise specified herein, all notices,
requests, demands, consents, instructions or other communications to or upon
Lessor or Agent under this Agreement shall be given as provided in Paragraph
7.01 of the Participation Agreement.

      5.02. Waivers; Amendments. Any term, covenant, agreement or condition of
this Agreement may be amended or waived only as provided in the Participation
Agreement. No failure or delay by Agent in exercising any right hereunder shall
operate as a waiver thereof or of any other right nor shall any single or
partial exercise of any such right preclude any other further exercise thereof
or of any other right. Unless otherwise specified in any such waiver or consent,
a waiver or consent given hereunder shall be effective only in the specific
instance and for the specific purpose for which given.

      5.03. Successors and Assigns. This Agreement shall be binding upon and
inure to the benefit of the Lessor Parties and their permitted successors and
assigns; provided, however, that the Lessor Parties shall not sell, assign or
delegate their respective rights and obligations hereunder except as provided in
the Participation Agreement.

      5.04. No Third Party Rights. Nothing expressed in or to be implied from
this Agreement is intended to give, or shall be construed to give, any Person,
other than the Lessor Parties and their permitted successors and assigns, any
benefit or legal or equitable right, remedy or claim under or by virtue of this
Agreement or under or by virtue of any provision herein.

      5.05. Partial Invalidity. If at any time any provision of this Agreement
is or becomes illegal, invalid or unenforceable in any respect under the law or
any jurisdiction, neither the legality, validity or enforceability of the
remaining provisions of this Agreement nor the legality, validity or
enforceability of such provision under the law of any other jurisdiction shall
in any way be affected or impaired thereby.

      5.06. Governing Law. This Agreement shall be governed by and construed in
accordance with the laws of the State of California without reference to
conflicts of law rules.

      5.07. Counterparts. This Agreement may be executed in any number of
identical counterparts, any set of which signed by all the parties hereto shall
be deemed to constitute a complete, executed original for all purposes.


                                      K-4
   274
      IN WITNESS WHEREOF, Lessor has caused this Agreement to be executed as of
the day and year first above written.

LESSOR:                                LEASE PLAN U.S.A., INC.



                                       By: _____________________________

                                           Name: _______________________

                                           Title: ______________________


                                      K-5
   275
                                                                  EXECUTION COPY


================================================================================



                            LESSOR SECURITY AGREEMENT

                                       BY

                             LEASE PLAN U.S.A., INC.

                                   IN FAVOR OF

                               ABN AMRO BANK N.V.,

                                    AS AGENT

                                NOVEMBER 12, 1997


================================================================================


                                      K-6
   276
                                    EXHIBIT L

                              ASSIGNMENT AGREEMENT


      THIS  ASSIGNMENT AGREEMENT, dated as of the date set forth at the top of
Attachment 1 hereto, by and among:

                  (1) The party designated under item A of Attachment I hereto
         as the Assignor Participant ("Assignor Participant"); and

                  (2) Each party designated under item B of Attachment I hereto
         as an Assignee Participant (individually, an "Assignee Participant").


                                    RECITALS

      A.    Assignor Participant is one of the "Participants" in a Participation
Agreement dated as of November 12, 1997, among KLA-Tencor Corporation
("Lessee"), Lease Plan U.S.A., Inc. ("Lessor"), Assignor Participant and the
other institutions parties thereto as "Participants" (collectively, the
"Participants") and ABN AMRO Bank N.V., as agent for the Participants (in such
capacity, "Agent"). (Such Participation Agreement, as amended, supplemented or
otherwise modified in accordance with its terms from time to time to be referred
to herein as the "Participation Agreement").

      B.    Assignor Participant wishes to sell, and each Assignee Participant
wishes to purchase, all or a portion of Assignor Participant's rights under the
Participation Agreement pursuant to Subparagraph 7.05(b) of the Participation
Agreement.


                                    AGREEMENT

      Now, therefore, the parties hereto hereby agree as follows:

      1.    Definitions. Except as otherwise defined in this Assignment
Agreement, all capitalized terms used herein and defined in the Participation
Agreement have the respective meanings given to those terms in the Participation
Agreement.

      2.    Sale and Assignment. Subject to the terms and conditions of this
Assignment Agreement, Assignor Participant hereby agrees to sell, assign and
delegate to each Assignee Participant and each Assignee Participant hereby
agrees to purchase, accept and assume the rights, obligations and duties of a
Participant under the Participation Agreement and the other Operative Documents
equal to the Tranche A Percentage, Tranche B Percentage, Tranche C Percentage
and Proportionate Share set forth under the captions "Tranche Percentages and
Proportionate Shares Assigned" opposite such Assignee Participant's name on Part
A of Attachment I hereto. Such sale, assignment and delegation shall become
effective on the date 


                                      L-1
   277
designated in Part C of Attachment I hereto (the "Assignment Effective Date"),
which date shall be, unless Agent shall otherwise consent, at least five (5)
Business Days after the date following the date counterparts of this Assignment
Agreement are delivered to Agent in accordance with Paragraph 3 hereof.

      3.    Assignment Effective Notice. Upon (a) receipt by Agent of five (5)
counterparts of this Assignment Agreement (to each of which is attached a fully
completed Attachment 1), each of which has been executed by Assignor Participant
and each Assignee Participant (and, to the extent required by clause (i) of
Subparagraph 7.05(b) of the Participation Agreement, by Lessor, Lessee and
Agent) and (b) payment to Agent of the registration and processing fee specified
in clause (iii) of Subparagraph 7.05(b) of the Participation Agreement, Agent
will transmit to Lessor, Lessee, Assignor Participant and each Assignee
Participant an Assignment Effective Notice substantially in the form of
Attachment 2 hereto, fully completed (an "Assignment Effective Notice").

      4.    Assignment Effective Date. At or before 12:00 noon (local time of
Assignor Participant) on the Assignment Effective Date, each Assignee
Participant shall pay to Assignor Participant, in immediately available or same
day funds, an amount equal to the purchase price, as agreed between Assignor
Participant and such Assignee Participant (the "Assignment Purchase Price"), for
the respective Tranche A Percentage, Tranche B Percentage, Tranche C Percentage
and Proportionate Share purchased by such Assignee Participant hereunder.
Effective upon receipt by Assignor Participant of the Assignment Purchase Price
payable by each Assignee Participant, the sale, assignment and delegation to
such Assignee Participant of such Proportionate Share as described in Paragraph
2 hereof shall become effective.

      5.    Payments After the Assignment Effective Date. Assignor Participant
and each Assignee Participant hereby agree that Agent shall, and hereby
authorize and direct Agent to, allocate amounts payable under the Participation
Agreement and the other Operative Documents as follows:

            (a)   All payments applied to reduce the Outstanding Lease Amount
      after the Assignment Effective Date with respect to each Tranche A
      Percentage, Tranche B Percentage, Tranche C Percentage and Proportionate
      Share assigned to an Assignee Participant pursuant to this Assignment
      Agreement shall be payable to such Assignee Participant.

            (b)   All Base Rent, interest, fees and other amounts accrued after
      the Assignment Effective Date with respect to each Tranche A Percentage,
      Tranche B Percentage, Tranche C Percentage and Proportionate Share
      assigned to an Assignee Participant pursuant to this Assignment Agreement
      shall be payable to such Assignee Participant.

Assignor Participant and each Assignee Participant shall make any separate
arrangements between themselves which they deem appropriate with respect to
payments between them of amounts paid under the Operative Documents on account
of the Tranche A Percentage, Tranche B Percentage, Tranche C Percentage and
Proportionate Share assigned to such Assignee Participant, and neither Agent nor
Lessee shall have any responsibility to effect or carry out such separate
arrangements.


                                      L-2
   278
      6.    Delivery of Copies of Operative Documents. Concurrently with the
execution and delivery hereof, Assignor Participant will provide to each
Assignee Participant (if it is not already a party to the Participation
Agreement) conformed copies of all documents delivered to Assignor Participant
on or prior to the Closing Date in satisfaction of the conditions precedent set
forth in the Participation Agreement.

      7.    Further Assurances. Each of the parties to this Assignment Agreement
agrees that at any time and from time to time upon the written request of any
other party, it will execute and deliver such further documents and do such
further acts and things as such other party may reasonably request in order to
effect the purposes of this Assignment Agreement.

      8.    Further Representations, Warranties and Covenants. Assignor
Participant and each Assignee Participant further represent and warrant to and
covenant with each other, Lessor, Agent and the other Participants as follows:

            (a)   Other than the representation and warranty that it is the
      legal and beneficial owner of the interest being assigned hereby free and
      clear of any adverse claim, Assignor Participant makes no representation
      or warranty and assumes no responsibility with respect to any statements,
      warranties or representations made in or in connection with the
      Participation Agreement or the other Operative Documents or the execution,
      legality, validity, enforceability, genuineness, sufficiency or value of
      the Participation Agreement or the other Operative Documents furnished or
      the Collateral or any security interest therein.

            (b)   Assignor Participant makes no representation or warranty and
      assumes no responsibility with respect to the financial condition of
      Lessee or any of its obligations under the Participation Agreement or any
      other Operative Documents.

            (c)   Each Assignee Participant confirms that it has received a copy
      of the Participation Agreement and such other documents and information as
      it has deemed appropriate to make its own credit analysis and decision to
      enter into this Assignment Agreement.

            (d)   Each Assignee Participant will, independently and without
      reliance upon Lessor, Agent, Assignor Participant or any other Participant
      and based upon such documents and information as it shall deem appropriate
      at the time, continue to make its own credit decisions in taking or not
      taking action under the Participation Agreement and the other Operative
      Documents.

            (e)   Each Assignee Participant appoints and authorizes Agent to
      take such action as Agent on its behalf and to exercise such powers under
      the Participation Agreement and the other Operative Documents as Agent is
      authorized to exercise by the terms thereof, together with such powers as
      are reasonably incidental thereto, all in accordance with Section VI of
      the Participation Agreement.

            (f)   Each Assignee Participant (i) affirms that each of the
      representations and warranties set forth in Paragraph 4.03 of the
      Participation Agreement is true and correct with respect to such
      Participant and (ii) agrees that it will perform in accordance with 


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      their terms all of the obligations which by the terms of the Participation
      Agreement and the other Operative Documents are required to be performed
      by it as a Participant.

            (g)   Each Assignee Participant represents and warrants that, as of
      the date hereof, it would not have any basis for demanding any payment
      under Subparagraph 2.12(c) or Subparagraph 2.12(d) of the Participation
      Agreement or, to its knowledge, under Subparagraph 2.13(a) of the
      Participation Agreement.

            (h)   Part B of Attachment 1 hereto sets forth administrative
      information with respect to each Assignee Participant.

      9.    Effect of this Assignment Agreement. On and after the Assignment
Effective Date, (a) each Assignee Participant shall be a Participant with a
Tranche A Percentage, Tranche B Percentage, Tranche C Percentage and
Proportionate Share as set forth under the caption "Tranche Percentages and
Proportionate Share After Assignment" opposite such Assignee Participant's name
in Part A of Attachment 1 hereto and shall have the rights, duties and
obligations of such a Participant under the Participation Agreement and the
other Operative Documents and (b) Assignor Participant shall be a Participant
with a Tranche A Percentage, Tranche B Percentage, Tranche C Percentage and
Proportionate Share as set forth under the caption "Tranche Percentages and
Proportionate Share After Assignment" opposite Assignor Participant's name in
Part A of Attachment 1 hereto and shall have the rights, duties and obligations
of such a Participant under the Participation Agreement and the other Operative
Documents, or, if the Proportionate Share of Assignor Participant has been
reduced to zero, Assignor Participant shall cease to be a Participant and shall
have no further obligation to fund any portion of any Advance.

      10.   Miscellaneous. This Assignment Agreement shall be governed by, and
construed in accordance with, the laws of the State of California. Paragraph
headings in this Assignment Agreement are for convenience of reference only and
are not part of the substance hereof.


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      IN WITNESS WHEREOF, the parties hereto have caused this Assignment
Agreement to be executed by their respective duly authorized officers as of the
date set forth in Attachment 1 hereto.



                                       ______________________________, as
                                       Assignor Participant

                                       By: ________________________________
                                           Name: __________________________
                                           Title: _________________________

                                       ____________________________, as an
                                       Assignee Participant

                                       By: ________________________________
                                           Name: __________________________
                                           Title: _________________________

                                       ____________________________, as an
                                       Assignee Participant

                                       By: ________________________________
                                           Name: __________________________
                                           Title: _________________________

                                       ____________________________, as an
                                       Assignee Participant

                                       By: ________________________________
                                           Name: __________________________
                                           Title: _________________________


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CONSENTED TO AND ACKNOWLEDGED BY:

______________________________
as Lessee

By: ________________________________
    Name: __________________________
    Title: _________________________


______________________________,
as Agent

By: ________________________________
    Name: __________________________
    Title: _________________________


______________________________,
As Lessor

By: ________________________________
    Name: __________________________
    Title: _________________________


ACCEPTED FOR RECORDATION IN REGISTER:

______________________________,
As Agent

By: ________________________________
    Name: __________________________
    Title: _________________________


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                                  ATTACHMENT 1

                            TO ASSIGNMENT AGREEMENT

                                     PART A



                                                     Tranche Percentages and                         
                                                  Proportionate Shares Assigned                      
                             ------------------------------------------------------------------------
                               Tranche A          Tranche B           Tranche C         Proportionate
                              Percentage          Percentage          Percentage            Share    
                              ----------          ----------          ----------        -------------
                                                                                      
Assignor Participant:
_________                    __. _______%        __. _______%        __. _______%        __. _______%
_________                    __. _______%        __. _______%        __. _______%        __. _______%
_________                    __. _______%        __. _______%        __. _______%        __. _______%
Assignee Participants:
_________                    __. _______%        __. _______%        __. _______%        __. _______%
_________                    __. _______%        __. _______%        __. _______%        __. _______%
_________                    __. _______%        __. _______%        __. _______%        __. _______%
_________                    __. _______%        __. _______%        __. _______%        __. _______%





                                                     Tranche Percentages and
                                              Proportionate Shares After Assignment
                             -------------------------------------------------------------------------------
                              Tranche A            Tranche B             Tranche C            Proportionate
                              Percentage           Percentage           Percentage                Share
                              ----------           ----------           ----------            -------------
                                                                                  
Assignor Participant:
_________                    __. _______%          __. _______%        __. ________%           __. ________%
_________                    __. _______%          __. _______%        __. ________%           __. ________%
_________                    __. _______%          __. _______%        __. ________%           __. ________%
Assignee Participants:
_________                    __. _______%          __. _______%        __. ________%           __. ________%
_________                    __. _______%          __. _______%        __. ________%           __. ________%
_________                    __. _______%          __. _______%        __. ________%           __. ________%
_________                    __. _______%          __. _______%        __. ________%           __. ________%



                                     L(1)-1
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                                     PART B



     [Assignee Participant]
- --------------------------------

Applicable Participating Office:


___________________________
Address for notices:



Telephone No: __________________
Telecopier No: _________________
Wiring Instructions:



     [Assignee Participant]
- --------------------------------

Applicable Participating Office:



___________________________
Address for notices:



Telephone No: __________________
Telecopier No: _________________
Wiring Instructions:


                                     L(1)-2
   284
                  PART C

ASSIGNMENT EFFECTIVE DATE  ________, ____


                                     L(1)-3
   285
                                  ATTACHMENT 2

                             TO ASSIGNMENT AGREEMENT

                                     FORM OF

                           ASSIGNMENT EFFECTIVE NOTICE


      Reference is made to the Participation Agreement, dated as of November 12,
1997, among KLA-Tencor Corporation ("Lessee"), Lease Plan U.S.A., Inc.
("Lessor"), the financial institutions parties thereto as "Participants" (the
"Participants") and ABN AMRO Bank N.V., as agent for the Participants (in such
capacity, "Agent"). Agent hereby acknowledges receipt of five executed
counterparts of a completed Assignment Agreement, a copy of which is attached
hereto. [Note: Attach copy of Assignment Agreement.] Terms defined in such
Assignment Agreement are used herein as therein defined.

      1.    Pursuant to such Assignment Agreement, you are advised that the
Assignment Effective Date will be __________.

      2.    Pursuant to such Assignment Agreement, each Assignee Participant is
required to pay its Purchase Price to Assignor Participant at or before 12:00
Noon on the Assignment Effective Date in immediately available funds.

                                       Very truly yours,

                                       ABN AMRO Bank N.V.,
                                       as Agent

                                       By: _____________________________
                                           Name: _______________________
                                           Title: ______________________


                                     L(2)-1
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                                    EXHIBIT M

                         TRACT 3 GROUND LEASE AGREEMENT

                           FIRST AMENDED AND RESTATED
                             GROUND LEASE AGREEMENT


      THIS FIRST AMENDED AND RESTATED GROUND LEASE AGREEMENT (this "Ground
Lease" herein), dated as of November 12, 1997, is entered into by and between:

            (1)   KLA-TENCOR CORPORATION, a Delaware corporation ("Ground
      Lessor"); and

            (2)   LEASE PLAN U.S.A., INC., a Georgia corporation ("Ground
      Lessee").


                                    RECITALS

      A.    Ground Lessor has requested Ground Lessee and the financial
institutions which are "Participants" under the Participation Agreement referred
to in Recital B below (such financial institutions to be referred to
collectively as the "Participants") to provide to Ground Lessor a certain lease
facility. Pursuant to such facility:

            (1)   Ground Lessee would (a) acquire certain property designated by
      Ground Lessor (either through purchase or lease), (b) lease to Ground
      Lessor such property and certain other property currently held by Ground
      Lessee, (c) appoint Ground Lessor as Ground Lessee's agent to make certain
      improvements to a portion of such property, (d) make advances to finance
      such improvements and to pay certain related expenses, and (e) grant to
      Ground Lessor the right to purchase such property; and

            (2)   The Participants would participate in such lease facility by
      (a) funding the purchase prices and other advances to be made by Ground
      Lessee and (b) acquiring participation interests in the rental and certain
      other payments to be made by Ground Lessor.

      B.    Pursuant to a Participation Agreement dated of even date herewith
(the "Participation Agreement") among Ground Lessor, Ground Lessee, the
Participants and ABN AMRO Bank N.V., as agent for the Participants (in such
capacity, "Agent"), Ground Lessee and the Participants have agreed to provide
such lease facility upon the terms and subject to the conditions set forth
therein, including without limitation the execution and delivery of this Ground
Lease.

      C.    Ground Lessor is the owner of certain real property located in the
City of San Jose, County of Santa Clara, State of California, commonly know as
160 Rio Robles, San Jose, California, which real property (the "Land") is more
fully described in Exhibit A.


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   287
      D.    Ground Lessor, formerly known as KLA Instruments Corporation, a
Delaware corporation, and BNP Leasing Corporation, a Delaware corporation,
previously entered into that certain Ground Lease Agreement effective as of June
5, 1995, with respect to the Land (the "Original Lease").

      E.    BNP Leasing Corporation, a Delaware corporation, has assigned its
interest under the Original Lease to Ground Lessee by that certain Assignment of
Ground Lease, dated as of the date hereof.

      F.    Ground Lessor and Ground Lessee now desire to amend and restate the
Original Lease in its entirety, as more fully set forth herein.


                                    AGREEMENT

            NOW, THEREFORE, in consideration of the above Recitals and the
mutual covenants herein contained, the parties hereto hereby agree as follows:

SECTION 10. INTERPRETATION.

      10.01. Definitions. Unless otherwise indicated in this Ground Lease, each
term set forth in Schedule 1.01 to the Participation Agreement, when used in
this Ground Lease, shall have the respective meaning given to that term in such
Schedule 1.01 or in the provision of this Ground Lease or other document,
instrument or agreement referenced in such Schedule 1.01.

      10.02. Rules of Construction. Unless otherwise indicated in this Ground
Lease, the rules of construction set forth in Schedule 1.02 to the Participation
Agreement shall apply to this Ground Lease.

SECTION 11. BASIC PROVISIONS.

      11.01. Lease of the Property. Ground Lessor agrees to lease to Ground
Lessee and Ground Lessee agrees to lease from Ground Lessor the following
property, if any (the "Leased Property"), to the extent of Ground Lessor's
estate, right, title and interest therein, thereto or thereunder:

            (a)   All lots, pieces, tracts and parcels of the Land together with
      such additional parcels of real property as may be added to the Land from
      time to time during the term hereof;

            (b)   All Improvements now or hereafter located on the Land;

            (c)   All Appurtenant Rights belonging, relating or pertaining to
      any of the Land or Improvements;

            (d)   All Related Goods, Related Permits and Related Agreements
      related to any of the foregoing Land, Improvements or Appurtenant Rights;
      and


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            (e)   All accessions and accretions to and replacements and
      substitutions for the foregoing.

      11.02. Term. The term of this Ground Lease (herein called the "Term")
shall commence on and include the effective date hereof and end on November 1,
2031. However, subject to the prior approval of any lender or other beneficiary
of a Leasehold Mortgage (defined below) (a "Leasehold Mortgagee"), Ground Lessee
shall have the right to terminate this Ground Lease by giving notice to Ground
Lessor stating that Ground Lessee unequivocally elects to terminate effective as
of a date specified in such notice which may be any date more than thirty days
after the notice and after the expiration or termination of the Lease Agreement
pursuant to its terms. Further, Ground Lessor shall have an option (the "Ground
Lessor's Termination Option") to terminate this Ground Lease on and subject to
the following terms and conditions:

            (a)   To exercise the Ground Lessor's Termination Option, Ground
      Lessor must provide Ground Lessee with an unconditional notice thereof
      (the "Ground Lessor's Termination Notice") which specifies a date (the
      "Qualifying Termination Date"), which date shall coincide with Ground
      Lessor or an Assignee Purchaser's purchase of the Leased Property pursuant
      to Section 2 of the Purchase Agreement, as the effective date of the
      termination of this Ground Lease and which sets forth Ground Lessor's
      calculation of the Outstanding Lease Amount as of such date. Any notice
      specifying or purporting to establish an effective date of termination
      which is not a Qualifying Termination Date shall not be effective as a
      Ground Lessor's Termination Notice hereunder. Any Ground Lessor's
      Termination Notice will be irrevocable.

            (b)   After giving any Ground Lessor's Termination Notice, Ground
      Lessor must on or before the effective date of the termination specified
      therein, pay to Ground Lessee in good funds the Outstanding Lease Amount.
      Ground Lessor's payment of the Outstanding Lease Amount shall be a
      condition precedent to the effectiveness of any early termination of this
      Ground Lease by Ground Lessor. Time is of the essence as to such payment.

            (c)   At any time after the Expiration Date of the Lease Agreement,
      Ground Lessee may provide a notice to Ground Lessor (a "FOCB Notice")
      explaining that, unless Ground Lessor provides a Ground Lessor's
      Termination Notice within thirty days after the FOCB Notice is sent in
      accordance with the notice provisions hereof, the Ground Lessor's
      Termination Option will expire. Unless Ground Lessor does in fact provide
      an effective Ground Lessor's Termination Notice within thirty days after
      any such FOCB Notice is sent to Ground Lessor by Ground Lessee in
      accordance with the notice provisions hereof, the Ground Lessor's
      Termination Option will expire. Time is of the essence as to the giving of
      any Ground Lessor's Termination Notice required to prevent an expiration
      of the Ground Lessor's Termination Option; however, if during the thirty
      day period specified above in this subparagraph Ground Lessor is delayed
      in providing any Ground Lessor's Termination Notice because of any
      automatic stay or similar restraint imposed in any bankruptcy or
      insolvency proceedings wherein Ground Lessee is the debtor, then such
      thirty day period will be extended by a time equal to such delay.

            (d)   Notwithstanding the foregoing, if Ground Lessor loses its
     rights to acquire Ground Lessee's interest in the Leased Property under the
     Purchase Agreement before the effective date of any termination of this
     Ground Lease, and if Ground Lessor would not have lost such right but for
     Ground Lessor's failure to cure a breach by Ground Lessor of the Purchase


                                      M-3
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      Agreement within any applicable grace period provided therein, then Ground
      Lessor shall no longer have any right whatsoever to terminate this Ground
      Lease pursuant to this Paragraph 2.02, and any prior Ground Lessor's
      Termination Notice given by Ground Lessor shall become ineffective for
      purposes of this Ground Lease.

      11.03. Rent. Ground Lessee has paid to Ground Lessor the sum of Ten and
no/100 dollars ($10.00) as prepaid rent for the period beginning on the
effective date and ending on October 31, 2002. The receipt and sufficiency of
such prepaid rent is hereby acknowledged by Ground Lessor. On each anniversary
of the first Business Day of November, 2002 (the "Rent Commencement Date"),
Ground Lessee shall pay Ground Lessor an annual installment of rent in arrears
(herein called "Rent"), in currency that at the time of payment is legal tender
for public and private debts in the United States of America. Each such
installment of Rent shall equal the annual fair rental value of unimproved land
of equivalent size and location to the Land, without considering any value added
by the Improvements, as determined in accordance with Exhibit B (the "Fair
Rental Value").

      11.04. Receipt and Application of Insurance and Condemnation Proceeds. All
insurance and condemnation proceeds payable with respect to any damage to or
taking of the Leased Property shall be payable to and become the property of the
Ground Lessee; provided, however, Ground Lessor shall be entitled to receive
condemnation proceeds awarded for the value of Ground Lessor's remainder
interest in the Land exclusive of the Improvements. Ground Lessee is authorized
to take all action necessary on behalf of both Ground Lessee and Ground Lessor
to collect insurance and condemnation proceeds.

      11.05. No Lease Termination. Except as expressly provided herein, this
Ground Lease shall not terminate, nor shall Ground Lessor have any right to
terminate this Ground Lease nor shall the obligations of Ground Lessor under
this Ground Lease be excused, for any reason whatsoever, including without
limitation any of the following: (i) any damage to or the destruction of all or
any part of the Leased Property from whatever cause, (ii) the taking of the
Leased Property or any portion thereof by eminent domain or otherwise for any
reason, (iii) any default on the part of the Ground Lessee under this Ground
Lease or under any other agreement to which Ground Lessor and Ground Lessee are
parties, (iv) any other cause whether similar or dissimilar to the foregoing,
any existing or future law to the contrary notwithstanding. It is the intention
of the parties hereto that the obligations of Ground Lessor hereunder shall be
separate and independent of the covenants and agreements of Ground Lessee.
However, nothing in this Paragraph 2.05 shall be construed as a waiver by Ground
Lessor of any right Ground Lessor may have at law or in equity to recover
monetary damages for any default under this Ground Lease.

      11.06. Purchase Agreement and Lease Agreement. Nothing contained in this
Ground Lease shall limit, modify or otherwise affect any of Ground Lessor's or
Ground Lessee's respective rights and obligations under the Purchase Agreement
or Lease Agreement, which rights and obligations are intended to be separate,
independent and in addition to, and not in lieu of, the obligations established
by this Ground Lease; provided, however, that if Ground Lessor exercises the
Ground Lessor's Termination Option, Ground Lessee shall have no further
obligations under the Purchase Agreement or the Lease Agreement. In the event of
any inconsistency between the terms and provisions of the Purchase Agreement or
Lease Agreement and the terms and provisions of this Ground Lease, the terms and
provisions of the Purchase Agreement or Lease Agreement (as the case may be)
shall control.


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   290
      11.07. Use of Leased Property. Subject to the encumbrances and other
matters affecting the Leased Property that are set forth in Exhibit C attached
hereto and made a part hereof (the "Permitted Encumbrances") and the terms
hereof, Ground Lessee may use and occupy the Leased Property for any lawful
purpose. If a use of the Leased Property by Ground Lessee for any lawful purpose
or any new Improvements or removal or modifications of Improvements proposed by
Ground Lessee would violate any Permitted Encumbrance unless Ground Lessor, as
an owner of adjacent property or otherwise, gave its consent or approval thereto
or agreed to join in a modification of such Permitted Encumbrance, then Ground
Lessor shall give such consent or approval or join in such modification.
Further, Ground Lessor's obligation under the preceding sentence shall be
binding upon any successor or assign of Ground Lessor with respect to the
Permitted Encumbrances. In any event, Ground Lessee may at any time during the
Term remove the Improvements from the Leased Property without the consent of
Ground Lessor and without obligation to compensate Ground Lessor or construct
other Improvements on the Land.

      11.08. Assignment and Subletting. Ground Lessor's consent shall not be
required for any assignment or subletting by Ground Lessee.

      11.09. Estoppel Certificate. Ground Lessor shall from time to time, within
ten days after receipt of written request by Ground Lessee, deliver a statement
in writing certifying:

            (a)   that this Ground Lease is unmodified and in full force and
      effect (or if modified that this Ground Lease as so modified is in full
      force and effect);

            (b)   that to the knowledge of Ground Lessor, Ground Lessee has not
      previously assigned or hypothecated its rights or interests under this
      Ground Lease, except as is described in such statement with as much
      specificity as Ground Lessor is able to provide;

            (c)   the term of this Ground Lease and the Rent and any additional
      charges;

            (d)   that Ground Lessee is not in default under any provision of
      this Ground Lease (or if in default, the nature thereof in detail) and a
      statement as to any outstanding obligations on the part of Ground Lessor
      or Ground Lessee; and

            (e)   such other matters as are requested by Ground Lessee.


GROUND LESSOR'S FAILURE TO DELIVER SUCH STATEMENT WITHIN SUCH TIME SHALL BE
CONCLUSIVE UPON GROUND LESSEE (i) THAT THIS GROUND LEASE IS IN FULL FORCE AND
EFFECT, WITHOUT MODIFICATION EXCEPT AS MAY BE REPRESENTED BY GROUND LESSEE, (ii)
THAT THERE ARE NO UNCURED DEFAULTS IN GROUND LESSEE'S PERFORMANCE HEREUNDER.


                                      M-5
   291
      11.10. Leasehold Mortgages.

            (a)   By any mortgage, deed of trust, security agreement or
      assignment executed by Ground Lessee to secure an obligation to repay
      borrowed money or other voluntary obligations, which covers Ground
      Lessee's leasehold estate hereunder or any part thereof or any rents or
      other charges to be paid to Ground Lessee pursuant to any sublease (a
      "Leasehold Mortgage"), Ground Lessee may encumber Ground Lessee's
      leasehold estate in the Leased Property created by this Ground Lease, as
      well as Ground Lessee's rights and interests in buildings, fixtures,
      equipment and improvements situated thereon and rents, issues, profits,
      revenues and other income to be derived by Ground Lessee therefrom.
      However, so long as the Lease Agreement remains in effect, any Leasehold
      Mortgage will be permitted hereunder only if permitted pursuant to the
      Lease Agreement.

            (b)   Any Leasehold Mortgagee or other party, including any
      corporation formed by a Leasehold Mortgagee, may become the legal owner
      and holder of the leasehold estate created by this Ground Lease, and of
      the improvements, equipment, fixtures and other property assigned as
      additional security pursuant to a Leasehold Mortgage, by foreclosure of a
      Leasehold Mortgage or as a result of the assignment or conveyance in lieu
      of foreclosure. Further, any such Leasehold Mortgagee or other party may
      itself, after becoming the legal owner and holder of the leasehold estate
      created by this Ground Lease, or of any improvements, equipment, fixtures
      and other property assigned as additional security pursuant to a Leasehold
      Mortgage, convey or pledge the same without the consent of Ground Lessor.

            (c)   Ground Lessor shall serve notice of any default by Ground
      Lessee hereunder upon any Leasehold Mortgagee. No notice of a default by
      Ground Lessee shall be deemed effective until it is so served. Any
      Leasehold Mortgagee shall have the right to correct or cure any such
      default within the same period of time after receipt of such notice as is
      given to Ground Lessee under this Ground Lease to correct or cure
      defaults, plus an additional period of thirty days thereafter. Ground
      Lessor will accept performance by any Leasehold Mortgagee of any covenant,
      condition or agreement on Ground Lessee's part to be performed hereunder
      with the same force and effect as though performed by Ground Lessee.

            (d)   If this Ground Lease should terminate by reason of a
      disaffirmance or rejection of this Ground Lease by Ground Lessee or any
      receiver, liquidator or trustee for the property of Ground Lessee, or by
      any department of the city, state or federal government which had taken
      possession of the business or property of Ground Lessee by reason of the
      insolvency or alleged insolvency of Ground Lessee, then:

                  (i)   Ground Lessor shall give notice thereof to each
            Leasehold Mortgagee; and upon request of any Leasehold Mortgagee
            made within sixty days after Ground Lessor has given such notice,
            Ground Lessor shall enter into a new ground lease of the Leased
            Property with such Leasehold Mortgagee for the remainder of the
            Term, at the same Rent and on the same terms and conditions as
            contained in this Ground Lease.

                  (ii)  In connection with any such new ground lease, Ground
            Lessor shall also convey to the Leasehold Mortgagee by quitclaim
            deed any interest of Ground Lessor in and to the Improvements
            included in the Leased Property.


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                  (iii) The estate of the Leasehold Mortgagee, as lessee under
            the new lease, shall have priority equal to the estate of Ground
            Lessee hereunder. That is, there shall be no charge, lien or burden
            upon the Leased Property prior to or superior to the estate granted
            by such new lease which was not prior to or superior to the estate
            of Ground Lessee under this Ground Lease as of the date immediately
            preceding the termination of this Ground Lease. To the extent that
            the Lease Agreement and or the Purchase Agreement are in effect at
            the time of execution of such new ground lease, such new ground
            lease shall be made subject to the Lease Agreement and the Purchase
            Agreement.

                  (iv)  Notwithstanding the foregoing, if Ground Lessor shall
            receive requests to enter into a new ground lease from more than one
            Leasehold Mortgagee, Ground Lessor shall be required to enter into
            only one new ground lease, and the new ground lease shall be to the
            requesting Leasehold Mortgagee who holds the highest priority lien
            or interest in the Ground Lessee's leasehold estate in the Land. If
            the liens or security interests of two or more such requesting
            Leasehold Mortgagees which shared the highest priority just prior to
            the termination of this Ground Lease, the new ground lease shall
            name all such Leasehold Mortgagees as co-tenants thereunder.

            (e)   If the Ground Lessee has agreed with any Leasehold Mortgagee
      that such Leasehold Mortgagee's consent will be required to any
      modification or early termination of this Ground Lease by Ground Lessee,
      and if Ground Lessor has been notified of such agreement, such consent
      will be required.

            (f)   No Leasehold Mortgagee will assume any liability under this
      Ground Lease either by virtue of its Leasehold Mortgage or by any
      subsequent receipt or collection of rents or profits generated from the
      Leased Property, unless and until the Leasehold Mortgagee acquires Ground
      Lessee's leasehold estate in the Leased Property at foreclosure or by deed
      in lieu of foreclosure.

            (g)   Although the foregoing provisions concerning Leasehold
      Mortgages and Leasehold Mortgagees will be self operative, Ground Lessor
      agrees to include, in addition to the items specified in Paragraph 2.09,
      confirmation of the foregoing in any statement provided to a Leasehold
      Mortgagee or prospective Leasehold Mortgagee pursuant to Paragraph 2.09.

SECTION 12. OTHER REPRESENTATIONS, WARRANTIES AND COVENANTS OF LESSOR. Ground
Lessor represents, warrants and covenants as follows:

      12.01. Title. Ground Lessor holds good and marketable title to the Land,
free and clear of all liens and encumbrances, other than the Permitted
Encumbrances.

      12.02. No Default or Violation. The execution, delivery and performance by
Ground Lessor of this Ground Lease does not and will not constitute a breach or
default under any other material agreement or contract to which Ground Lessor is
a party or by which Ground Lessor is bound or which affects the Leased Property,
and does not violate or contravene any law, order, decree, rule or regulation to
which Ground Lessor is subject, and such execution, delivery and performance by
Ground Lessor will not result in the creation or imposition of (or the
obligation to create or impose) any lien, charge or encumbrance on, or security
interest in, Ground Lessor's property pursuant to the provisions of any of the
foregoing.


                                      M-7
   293
      12.03. No Suits. There are no judicial or administrative actions, suits,
proceedings or investigations pending or, to Ground Lessor's knowledge,
threatened that will adversely affect the Leased Property or the validity,
enforceability or priority of this Ground Lease, and Ground Lessor is not in
default with respect to any order, writ, injunction, decree or demand of any
court or other governmental or regulatory authority that could materially and
adversely affect the use, occupancy or operation of the Leased Property. No
condemnation or other like proceedings are pending or, to Ground Lessor's
knowledge, threatened against the Leased Property.

      12.04. Enforceability. The execution, delivery and performance of this
Ground Lease are duly authorized and do not require the consent or approval of
any governmental body or other regulatory authority that has not heretofore been
obtained and are not in contravention of or in conflict with any applicable laws
or any term or provision of Ground Lessor's articles of incorporation or bylaws.
This Ground Lease is a valid, binding and legally enforceable obligation of
Ground Lessor in accordance with its terms, except as such enforcement is
affected by bankruptcy, insolvency and similar laws affecting the rights of
creditors, generally, and equitable principles of general application.

      12.05. Insurance and Casualty. In the event any of the Leased Property is
destroyed or damaged by fire, explosion, windstorm, hail or by any other
casualty against which insurance shall have been required hereunder, (i) Ground
Lessee may make proof of loss, (ii) each insurance company concerned is hereby
authorized and directed to make payment for such loss directly to Ground Lessee
for application as required by Paragraph 2.04, and (iii) Ground Lessee's consent
must be obtained for any settlement, adjustment or compromise of any claims for
loss, damage or destruction under any policy or policies of insurance.

      12.06. Condemnation. All proceeds of condemnation awards or proceeds of
sale in lieu of condemnation with respect to the Leased Property and all
judgments, decrees and awards for injury or damage to the Leased Property shall
be paid to Ground Lessee and applied as provided in Paragraph 2.04 above. Ground
Lessee is hereby authorized, in the name of the Ground Lessor, to execute and
deliver valid acquittances for, and to appeal from, any such judgment, decree or
award concerning condemnation of any of the Leased Property. Ground Lessee shall
not be, in any event or circumstances, liable or responsible for failure to
collect, or to exercise diligence in the collection of, any such proceeds,
judgments, decrees or awards.

      12.07. Further Assurances. Ground Lessor shall, on request of Ground
Lessee, (i) promptly correct any defect, error or omission which may be
discovered in the contents of this Ground Lease or in any other instrument
executed in connection herewith or in the execution or acknowledgment thereof;
(ii) execute, acknowledge, deliver and record or file such further instruments
and do such further acts as may be necessary, desirable or proper to carry out
more effectively the purposes of this Ground Lease and to subject to this Ground
Lease any property intended by the terms hereof to be covered hereby including
specifically, but without limitation, any renewals, additions, substitutions,
replacements or appurtenances to the Leased Property; (iii) execute,
acknowledge, deliver, procure and record or file any document or instrument
deemed advisable by Ground Lessee to protect its rights in and to the Leased
Property against the rights or interests of third persons; and (iv) provide such
certificates, documents, reports, information, affidavits and other instruments
and do such further acts as may be necessary, desirable or proper in the
reasonable determination of Ground Lessee to enable Ground Lessee or 


                                      M-8
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any Leasehold Mortgagee to comply with the requirements or requests of any
agency or authority having jurisdiction over them.

SECTION 13. EVENTS OF DEFAULT.

      13.01. Definition of Event of Default. Each of the following events shall
be deemed to be an "Event of Default" by Ground Lessee under this Ground Lease:

            (a)   Ground Lessee shall fail to pay when due any installment of
      Rent due hereunder and such failure shall continue for sixty days after
      Ground Lessee receives written notice thereof.

            (b)   Ground Lessee shall fail to comply with any term, provision or
      covenant of this Ground Lease (other than as described in the other
      clauses of this Paragraph 4.01), and shall not cure such failure prior to
      sixty days after written notice thereof is sent to Ground Lessee if such
      failure is susceptible of cure within sixty (60) days, but if such failure
      cannot with reasonable diligence be cured within such sixty day period,
      and if Ground Lessee shall promptly have commenced to cure the same and
      shall thereafter prosecute the curing thereof with reasonable diligence,
      the period within which such failure may be cured shall be extended for
      such further period as shall be necessary for the curing thereof with
      reasonable diligence.

      13.02. Remedy. Upon occurrence of an Event of Default which is not cured
within any applicable period expressly permitted by Paragraph 4.01, Ground
Lessor's sole and exclusive remedy shall be to sue Ground Lessee for the
collection of any amount due under this Ground Lease and to enjoin the
continuation of the Event of Default. Ground Lessor may not terminate this
Ground Lease or Ground Lessee's right to possession under this Ground Lease
except as expressly provided herein. Any judgment which Ground Lessor may obtain
against Ground Lessee for amounts due under this Ground Lease may be collected
only through resort of a judgment lien against Ground Lessee's interest in the
Leased Property. Ground Lessee shall have no personal liability for the payment
amounts due under this or for the performance of any obligations of Ground
Lessee under this Ground Lease.

SECTION 14. QUIET ENJOYMENT. Neither Ground Lessor nor any third party lawfully
claiming any right or interest in the Leased Property shall during the Term
disturb Ground Lessee's peaceable and quiet enjoyment of the Leased Property;
however, such enjoyment shall be subject to the terms, provisions, covenants,
agreements and conditions of this Ground Lease and the Permitted Encumbrances,
to which this Ground Lease is subject and subordinate as hereinabove set forth.

SECTION 15. OPTION TO PURCHASE. Subject to the terms and conditions set forth in
Exhibit D, including the condition specified therein that Ground Lessor shall
have breached the Purchase Agreement and failed to cure such breach within any
time for cure expressly provided in the Purchase Agreement, Ground Lessee (and
any assignee of Ground Lessee's entire interest in the Leased Property, but not
any subtenant or assignee of a lesser interest) shall have the option to
purchase the Ground Lessor's interest in the Leased Property.


                                      M-9
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SECTION 16. MISCELLANEOUS.

      16.01. Notices. Each provision of this Ground Lease, or of any applicable
laws with reference to the sending, mailing or delivery of any notice or with
reference to the making of any payment by Ground Lessee to Ground Lessor, shall
be deemed to be complied with when and if the following steps are taken:

            (a)   All Rent required to be paid by Ground Lessee to Ground Lessor
      hereunder shall be paid to Ground Lessor in accordance with any reasonable
      written instruction provided from time to time by Ground Lessor to Ground
      Lessee, which may include payment by wire transfer.

            (b)   Except as otherwise specified herein, all notices, requests,
      demands, consents, instructions or other communications to or upon Ground
      Lessee or Ground Lessor under this Ground Lease shall be given to Ground
      Lessor and Ground Lessee as provided in Subparagraph 2.02(c) and Paragraph
      7.01 of the Participation Agreement.

      16.02. Severability. If any term or provision of this Ground Lease or the
application thereof shall to any extent be held by a court of competent
jurisdiction to be invalid and unenforceable, the remainder of this Ground
Lease, or the application of such term or provision other than to the extent to
which it is invalid or unenforceable, shall not be affected thereby.

      16.03. No Merger. There shall be no merger of this Ground Lease or of the
leasehold estate hereby created with the fee or any other estate in the Leased
Property or any part thereof by reason of the fact that the same person may
acquire or hold, directly or indirectly, this Ground Lease or the leasehold
estate hereby created or any interest in this Ground Lease or in such leasehold
estate as well as the fee or any other estate in the Leased Property or any
interest in such fee or other estate, unless all parties with an interest in the
Leased Property that would be adversely affected by any such merger specifically
agree in writing that such a merger shall occur.

      16.04. Entire Agreement. This Ground Lease, the agreements referred to
herein, and the instruments referred to therein supersede any prior negotiations
and agreements between the parties concerning the Leased Property and no
amendment or modification of this Ground Lease shall be binding or valid unless
expressed in a writing executed by both parties hereto.

      16.05. Binding Effect. All of the covenants, agreements, terms and
conditions to be observed and performed by the parties hereto shall be
applicable to and binding upon their respective successors and assigns.

      16.06. Governing Law. This Ground Lease shall be governed by and construed
in accordance with the laws of the State of California.

      16.07. Waiver of a Jury Trail. LESSOR AND LESSEE EACH HEREBY WAIVES ITS
RESPECTIVE RIGHTS TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR
ARISING OUT OF THIS GROUND LEASE OR ANY OTHER DOCUMENT OR DEALINGS BETWEEN THEM
RELATING TO THIS GROUND LEASE OR THE LEASED PROPERTY. The scope of this waiver
is intended to be all-encompassing of 


                                      M-10
   296
any and all disputes that may be filed in any court and that relate to the
subject matter of this transaction, including, without limitation, contract
claims, tort claims, breach of duty claims, and all other common law and
statutory claims. Ground Lessor and Ground Lessee each acknowledge that this
waiver is a material inducement to enter into a business relationship, that each
has already relied on the waiver in entering into this Ground Lease and the
other documents referred to herein and that each will continue to rely on the
waiver in their related future dealings. Ground Lessee and Ground Lessor each
further warrants and represents that it has reviewed this waiver with its legal
counsel, and that it knowingly and voluntarily waives its jury trial rights
following consultation with legal counsel. THIS WAIVER IS IRREVOCABLE, MEANING
THAT IT MAY NOT BE MODIFIED EITHER ORALLY OR IN WRITING, AND THE WAIVER SHALL
APPLY TO ANY SUBSEQUENT AMENDMENTS, RENEWALS, SUPPLEMENTS OR MODIFICATIONS TO
THIS GROUND LEASE OR TO ANY OTHER DOCUMENTS OR AGREEMENTS RELATING TO THIS
GROUND LEASE OR THE LEASED PROPERTY. In the event of litigation, this Ground
Lease may be filed as a written consent to a trial by the court.

      16.08. Memorandum of Lease. Ground Lessor and Ground Lessee shall execute
a memorandum of this Ground Lease in recordable form which shall be filed in the
real property records of Santa Clara County, California.

      16.09. Counterparts. This Agreement may be executed in any number of
identical counterparts, any set of which signed by all the parties hereto shall
be deemed to constitute a complete, executed original for all purposes.


                          [The signature page follows.]


                                      M-11
   297
      IN WITNESS WHEREOF, Ground Lessee and Ground Lessor have caused this
Ground Lease to be executed as of the day and year first above written.

GROUND LESSOR:                         KLA-TENCOR CORPORATION


                                       By:______________________________________
                                          Name:_________________________________
                                          Title:________________________________


GROUND LESSEE:                         LEASE PLAN U.S.A., INC.


                                       By:______________________________________
                                          Name:_________________________________
                                          Title:________________________________


                                      M-12
   298
                                    EXHIBIT A

                                      LAND


                                      M-13
   299
                                    EXHIBIT B

                       DETERMINATION OF FAIR RENTAL VALUE


      Each annual installment of Rent will equal the Fair Rental Value as of the
Rent Commencement Date, unless reduced to a lesser amount equal to the Fair
Rental Value on a subsequent date selected by Ground Lessee. By notice to Ground
Lessor, Ground Lessee may from time to time (but no more often than once in any
12 month period), designate a new date within sixty days of the date of such
notice as an alternative to the Rent Commencement Date for purposes of
determining Fair Rental Value, in which case installments of Rent due after such
alternative date shall equal the Fair Rental Value on such alternative date
unless and until another alternative date is later designated. However, in no
event will Rent ever be increased above the Fair Rental Value on the Rent
Commencement Date.

      If Ground Lessor and Ground Lessee have not agreed upon Fair Rental Value
as of the Rent Commencement Date within 180 days after the Rent Commencement
Date, or if they do not agree upon Fair Rental Value as of an alternative date
within thirty days from the date of a notice from Ground Lessee designating such
alternative date as described above, then Fair Rental Value will be determined
as follows (but, again, in no event shall Rent be adjusted above the Fair Rental
Value on the Rent Commencement Date):

            (a)   Ground Lessor and Ground Lessee shall each appoint a real
      estate appraiser who is familiar with rental values for properties in the
      vicinity of the Land. Each party will make the appointment no later than
      10 days after receipt of notice from the other party that the appraisal
      process described in this paragraph has been invoked. The agreement of the
      two appraisers as to Fair Rental Value will be binding upon Ground Lessor
      and Ground Lessee. If the two appraisers cannot agree upon the Fair Rental
      Value within 10 days following their appointment, they shall within
      another 10 days agree upon a third real estate appraiser. Immediately
      thereafter, each of the first two appraisers will submit his best estimate
      of the appropriate Fair Rental Value (together with a written report
      supporting such estimate) to the third appraiser and the third appraiser
      will choose between the two estimates. The estimate of Fair Rental Value
      chosen by the third appraiser as the closest to the prevailing monthly
      fair rental value will be binding upon Ground Lessor and Ground Lessee.
      Notification in writing of this estimate shall be made to Ground Lessor
      and Ground Lessee within 15 days following the selection of the third
      appraiser.

            (b)   If appraisers must be selected under the procedure set out
      above and either Ground Lessee or Ground Lessor fails to appoint an
      appraiser or fails to notify the other party of such appointment within 7
      days after receipt of notice that the prescribed time for appointing the
      appraisers has passed, then the other party's appraiser will determine the
      Fair Rental Value. All appraisers selected for the appraisal process set
      out in this paragraph will be disinterested, reputable, qualified real
      estate appraisers with the designation of MAI or equivalent and with at
      least 5 years experience in appraising properties comparable to the Land.


                                      M-14
   300
            (c)   If a third appraiser must be chosen under the procedure set
      out above, he or she will be chosen on the basis of objectivity and
      competence, not on the basis of his relationship with the other appraisers
      or the parties to this Ground Lease, and the first two appraisers will be
      so advised. Although the first two appraisers will be instructed to
      attempt in good faith to agree upon the third appraiser, if for any reason
      they cannot agree within the prescribed time, either Ground Lessor and
      Ground Lessee may require the first two appraisers to immediately submit
      its top choice for the third appraiser to the then highest ranking officer
      of the San Francisco Bar Association who will agree to help and who has no
      attorney/client or other significant relationship to either Ground Lessor
      or Ground Lessee. Such officer will have complete discretion to select the
      most objective and competent third appraiser from between the choice of
      each of the first two appraisers, and will do so within 20 days after such
      choices are submitted to him.

            (d)   Either Ground Lessor or Ground Lessee may notify the appraiser
      selected by the other party to demand the submission of an estimate of
      Fair Rental Value or a choice of a third appraiser as required under the
      procedure described above; and if the submission of such an estimate or
      choice is required but the other party's appraiser fails to comply with
      the demand within 15 days after receipt of such notice, then the Fair
      Rental Value or choice of the third appraiser, as the case may be,
      selected by the other appraiser (i.e., the notifying party's appraiser)
      will be binding upon Ground Lessor and Ground Lessee.

            (e)   Ground Lessor and Ground Lessee shall each bear the expense of
      the appraiser appointed by it, and the expense of the third appraiser and
      of any officer of the San Francisco Bar Association who participates in
      the appraisal process described above will be shared equally by Ground
      Lessor and Ground Lessee.

      Once determined in accordance with this Exhibit, the annual Rent shall
remain the same until Ground Lessee elects to change Rent to the Fair Rental
Value as of the date other than the Rent Commencement Date as provided above.


                                      M-15
   301
                                    EXHIBIT C

                             PERMITTED ENCUMBRANCES


                                      M-16
   302
                                    EXHIBIT D

                           CONTINGENT PURCHASE OPTION

      Subject to the terms of this Exhibit D, Ground Lessee shall have an option
(the "Option") to buy the Ground Lessor's interest in the Leased Property at any
time during the term of this Ground Lease after (but only after) any breach by
Ground Lessor under the Purchase Agreement, provided Ground Lessor does not cure
the breach within any time permitted for cure by the express provisions of the
Purchase Agreement, for a purchase price (the "Option Price") to Ground Lessor
equal to fair market value.

      For the purposes of this Exhibit, "fair market value" means (and all
appraisers and other persons involved in the determination of the Option Price
will be so advised) the price that would be agreed upon between a willing buyer,
but under no compulsion to buy, and a willing seller, but under no compulsion to
sell, for unimproved land comparable in size and location to the Land, exclusive
of any Improvements, at the time of Ground Lessee's exercise of the Option and
taking into consideration the condition of the Land and the encumbrances
affecting the title to the Land at the time of the exercise of the Option.

      If Ground Lessee exercises the Option, which Ground Lessee may do by
notifying Ground Lessor that Ground Lessee has elected to buy Ground Lessor's
interest in the Leased Property as provided herein, then:

            (a)   Upon Ground Lessee's tender of the Option Price to Ground
      Lessor, Ground Lessor will convey good and marketable title to the fee
      estate in the Leased Property to Ground Lessee by general warranty deed
      subject only to the Permitted Encumbrances and, to the extent still in
      force, the Lease Agreement and the Purchase Agreement.

            (b)   Ground Lessee's obligation to close the purchase shall be
      subject to the following terms and conditions, all of which are for the
      benefit of Ground Lessee: (1) Ground Lessee shall have been furnished with
      evidence satisfactory to Ground Lessee that Ground Lessor can convey title
      as required by the preceding subparagraph; (2) nothing shall have occurred
      or been discovered after Ground Lessee exercised the Option that could
      significantly and adversely affect title to the Leased Property or the
      Ground Lessee's use thereof, (3) all of the representations of Ground
      Lessor in this Ground Lease shall continue to be true as if made effective
      on the date of the closing, and with respect to any such representations
      which may be limited to the knowledge of Ground Lessor or any of Ground
      Lessor's representatives, would continue to be true on the date of the
      closing if all relevant facts and circumstances were known to Ground
      Lessor and such representatives, and (4) Ground Lessee shall have been
      tendered the deed and other documents which are described in this Exhibit
      D as documents to be delivered to Ground Lessee at the closing of Ground
      Lessee's purchase.

            (c)   Closing of the purchase will be scheduled on the first
      Business Day following thirty days after the Option Price is established
      in accordance with the terms and conditions of this Exhibit D, and prior
      to closing Ground Lessee's occupancy of the Leased Property shall continue
      to be subject to the terms and conditions of this Ground Lease, including
      the terms setting forth Ground Lessee's obligation to pay Rent. Closing


                                      M-17
   303
      shall take place at the offices of any title insurance company reasonably
      selected by Ground Lessee to insure title under the title insurance policy
      described below.

            (d)   Any transfer taxes or notices or registrations required by law
      in connection with the sale contemplated by this Exhibit D will be the
      responsibility of Ground Lessor.

            (e)   Ground Lessor will deliver a certificate of nonforeign status
      to Ground Lessee at closing as needed to comply with the provisions of the
      Foreign Investors Real Property Tax Act (FIRPTA) or any comparable
      federal, state or local law in effect at the time.

            (f)   Ground Lessor will also pay for and deliver to Ground Lessee
      at the closing an owner's title insurance policy in the full amount of the
      Option Price, issued by a title insurance company designated by Ground
      Lessee (or written confirmation from the title company that it is then
      prepared to issue such a policy), and subject only to standard printed
      exceptions which the title insurance company refuses to delete or modify
      in a manner acceptable to Ground Lessee and to Permitted Encumbrances.

            (g)   Ground Lessor shall also deliver at the closing all other
      documents or things reasonably required to be delivered to Ground Lessee
      or by the title insurance company to evidence Ground Lessor's ability to
      transfer the Leased Property to Ground Lessee.

      If Ground Lessor and Ground Lessee do not otherwise agree upon the amount
of the Option Price within 20 days after Ground Lessee exercises the Option, the
Option Price shall be determined in accordance with the following procedure:

                  (i)   Ground Lessor and Ground Lessee shall each appoint a
            real estate appraiser who is familiar with properties in the
            vicinity of the Land. Each party will make the appointment no later
            than 10 days after receipt of notice from the other party that the
            appraisal process described in this paragraph has been invoked. The
            agreement of the two appraisers as to the Option Price will be
            binding upon Ground Lessor and Ground Lessee. If the two appraisers
            cannot agree upon the Option Price within 10 days following their
            appointment, they shall within another 10 days agree upon a third
            real estate appraiser. Immediately thereafter, each of the first two
            appraisers will submit his best estimate of the appropriate Option
            Price (together with a written report supporting such estimate) to
            the third appraiser and the third appraiser will choose between the
            two estimates. The estimate of Option Price chosen by the third
            appraiser as the closest to the prevailing monthly fair market value
            will be binding upon Ground Lessor and Ground Lessee. Notification
            in writing of the Option Price shall be made to Ground Lessor and
            Ground Lessee within 15 days following the selection of the third
            appraiser.

                  (ii)  If appraisers must be selected under the procedure set
            out above and either Ground Lessee or Ground Lessor fails to appoint
            an appraiser or fails to notify the other party of such appointment
            within 7 days after receipt of notice that the prescribed time for
            appointing the appraisers has passed, then the other 


                                      M-18
   304
            party's appraiser will determine the Option Price. All of the
            appraisers selected for the appraisal process set out in this
            paragraph will be disinterested, reputable, qualified real estate
            appraisers with the designation of MAI or equivalent and with at
            least 5 years experience in appraising properties comparable to the
            Land.

                  (iii) If a third appraiser must be chosen under the procedure
            set out above, he will be chosen on the basis of objectivity and
            competence, not on the basis of his relationship with the other
            appraisers or the parties to this Ground Lease, and the first two
            appraisers will be so advised. Although the first two appraisers
            will be instructed to attempt in good faith to agree upon the third
            appraiser, if for any reason they cannot agree within the prescribed
            time, either Ground Lessor and Ground Lessee may require the first
            two appraisers to immediately submit its top choice for the third
            appraiser to the then highest ranking officer of the San Francisco
            Bar Association who will agree to help and who has no
            attorney/client or other significant relationship to either Ground
            Lessor or Ground Lessee. Such officer will have complete discretion
            to select the most objective and competent third appraiser from
            between the choice of each of the first two appraisers, and will do
            so within 10 days after such choices are submitted to him.

                  (iv)  Either Ground Lessor or Ground Lessee may notify the
            appraiser selected by the other party to demand the submission of an
            estimate of Option Price or a choice of third appraiser as required
            under the procedure described above; and if the submission of such
            an estimate or choice is required but the other party's appraiser
            fails to comply with the demand within 15 days after receipt of such
            notice, then the Option Price or choice of third appraiser, as the
            case may be, selected by the other appraiser (i.e., the notifying
            party's appraiser) will be binding upon Ground Lessor and Ground
            Lessee.

                  (v)   Ground Lessor and Ground Lessee shall each bear the
            expense of the appraiser appointed by it, and the expense of the
            third appraiser and of any officer of the San Francisco Bar
            Association who participates in the appraisal process described
            above will be shared equally by Ground Lessor and Ground Lessee.


                                      M-19
   305

                                                                                                          
SECTION 1         INTERPRETATION.................................................................................2

         1.01.    Definitions....................................................................................2

         1.02.    Rules of Construction..........................................................................2

SECTION 2.        BASIC PROVISIONS...............................................................................2

         2.01.    Lease of the Property..........................................................................2

         2.02.    Term...........................................................................................3

         2.03.    Rent...........................................................................................4

         2.04.    Receipt and Application of Insurance and Condemnation Proceeds.................................4

         2.05.    No Lease Termination...........................................................................4

         2.06.    Purchase Agreement and Lease Agreement.........................................................4

         2.07.    Use of Leased Property.........................................................................5

         2.08.    Assignment and Subletting......................................................................5

         2.09.    Estoppel Certificate...........................................................................5

         2.10.    Leasehold Mortgages............................................................................6

SECTION 3.        OTHER REPRESENTATIONS, WARRANTIES AND COVENANTS OF LESSOR......................................7

         3.01.    Title..........................................................................................7

         3.02.    No Default or Violation........................................................................7

         3.03.    No Suits.......................................................................................8

         3.04.    Enforceability.................................................................................8

         3.05.    Insurance and Casualty.........................................................................8

         3.06.    Condemnation...................................................................................8

         3.07.    Further Assurances.............................................................................8

SECTION 4.        EVENTS OF DEFAULT..............................................................................9

         4.01.    Definition of Event of Default.................................................................9

         4.02.    Remedy.........................................................................................9

         4.03.    Quiet Enjoyment................................................................................9

         4.04.    Option to Purchase............................................................................10

SECTION 5.        MISCELLANEOUS.................................................................................10

         5.01.    Notices.......................................................................................10

         5.02.    Severability..................................................................................10

         5.03.    No Merger.....................................................................................10

         5.04.    Entire Agreement..............................................................................10



                                      M-20
   306

                                                                                                          
         5.05.    Binding Effect................................................................................11

         5.06.    Governing Law.................................................................................11

         5.07.    Waiver of a Jury Trail........................................................................11

         5.08.    Memorandum of Lease...........................................................................11

         5.09.    Counterparts..................................................................................11


EXHIBIT A

EXHIBIT B

EXHIBIT C

EXHIBIT D


                                      M-21
   307
                                                                  EXECUTION COPY


================================================================================



                           FIRST AMENDED AND RESTATED
                             GROUND LEASE AGREEMENT

                                       BY

                            KLA-TENCOR, CORPORATION,

                                AS GROUND LESSEE

                                       AND

                            LEASE PLAN U.S.A., INC.,

                                AS GROUND LESSOR

                        EFFECTIVE AS OF NOVEMBER 12, 1997



================================================================================


                                      M-22
   308
                                                                  EXECUTION COPY


================================================================================



                             PARTICIPATION AGREEMENT



                                      AMONG



                             KLA-TENCOR CORPORATION



                                       AND



                             LEASE PLAN U.S.A., INC.



                                       AND



                          THE PARTICIPANTS NAMED HEREIN



                                       AND



                               ABN AMRO BANK N.V.,

                          AS AGENT FOR THE PARTICIPANTS



                                       AND

                           BANQUE NATIONALE DE PARIS,

                                   AS CO-AGENT



                                NOVEMBER 12, 1997



================================================================================


   309
SCHEDULES

I           Participants

II          Pricing Grid

1.01        Definitions

1.02        Rules of Construction

3.01        Conditions Precedent to Initial Acquisition Advances

3.02        Conditions Precedent to the Tract 4 Acquisition Advance

4.01(g)     Litigation

4.01(q)     Subsidiaries

4.01(s)     Individual Property Representations



EXHIBITS

A           Land

B           Lease Agreement

C           Purchase Agreement

D           Construction Agency Agreement

E           Acquisition Request

F           Improvement/Expense Advance Request

G(1)        Commitment Extension Request

G(2)        Lease Extension Request

H           Assignment of Construction Agreements

I           Assignment of Lease

J           Lessor Deed of Trust

K           Lessor Security Agreement

L           Assignment Agreement

M           Tract 3 Ground Lease Agreement


                                     -xxiv-
   310
                                TABLE OF CONTENTS




                                                                                                        PAGE
                                                                                                  


SECTION 1.  INTERPRETATION.................................................................................3

1.01.       Definitions....................................................................................3

1.02.       Rules of Construction..........................................................................3

SECTION 2.  LEASE FACILITIES...............................................................................3

2.01.       Acquisition, Lease, Amount Limitations, Etc....................................................3

2.02.       Participation Agreement........................................................................6

2.03.       Advance Requests...............................................................................7

2.04.       Fees...........................................................................................8

2.05.       Funding of Advances............................................................................9

2.06.       Sharing of Payments...........................................................................10

2.07.       Other Payment Terms...........................................................................12

2.08.       Commitment Reductions.........................................................................13

2.09.       Extensions....................................................................................14

2.10.       Nature of the Transactions....................................................................15

2.11.       Security......................................................................................16

2.12.       Change of Circumstances.......................................................................17

2.13.       Taxes on Payments.............................................................................20

2.14.       Funding Loss Indemnification..................................................................22

2.15.       Replacement of Participants...................................................................22

SECTION 3.  CONDITIONS PRECEDENT..........................................................................23

3.01.       Initial Acquisition Advances..................................................................23

3.02.       Tract 4 Acquisition Advance...................................................................23

3.03.       Improvement/Expense Advances..................................................................23

3.04.       Other Conditions Precedent....................................................................23

3.05.       Covenant to Deliver...........................................................................23

SECTION 4.  REPRESENTATIONS AND WARRANTIES................................................................24

4.01.       Lessee's Representations and Warranties.......................................................24

4.02.       Lessor's Representations and Warranties.......................................................29

4.03.       Participants' Representations and Warranties..................................................30

SECTION 5.  COVENANTS.....................................................................................31



                                      -i-
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                                TABLE OF CONTENTS

                                  (continued)




                                                                                                        PAGE
                                                                                                  


5.01.       Lessee's Affirmative Covenants................................................................31

5.02.       Lessee's Negative Covenants...................................................................34

5.03.       Lessee's Financial Covenants..................................................................40

5.04.       Lessor's Covenants............................................................................41

5.05.       Participants' Covenants.......................................................................41

SECTION 6.  LESSOR, AGENT AND THEIR RELATIONS WITH PARTICIPANTS...........................................42

6.01.       Appointment of Agent..........................................................................42

6.02.       Powers and Immunities.........................................................................42

6.03.       Reliance......................................................................................42

6.04.       Defaults......................................................................................43

6.05.       Indemnification...............................................................................43

6.06.       Non-Reliance..................................................................................43

6.07.       Resignation or Removal of Agent...............................................................44

6.08.       Authorization.................................................................................44

6.09.       Lessor and Agent in their Individual Capacities...............................................44

SECTION 7.  MISCELLANEOUS.................................................................................44

7.01.       Notices.......................................................................................44

7.02.       Expenses......................................................................................46

7.03.       Indemnification...............................................................................46

7.04.       Waivers; Amendments...........................................................................47

7.05.       Successors and Assigns........................................................................47

7.06.       Setoff........................................................................................51

7.07.       No Third Party Rights.........................................................................51

7.08.       Partial Invalidity............................................................................51

7.09.       JURY TRIAL....................................................................................52

7.10.       Counterparts..................................................................................52

7.11.       No Joint Venture, Etc.........................................................................52

7.12.       Usury Savings Clause..........................................................................52

7.13.       Confidentiality...............................................................................52



                                      -ii-
   312
                          CONSTRUCTION AGENCY AGREEMENT


           THIS CONSTRUCTION AGENCY AGREEMENT (this "Agreement" herein), dated
as of November 12, 1997 is entered into by and between:

                        (1) KLA-TENCOR CORPORATION, a Delaware corporation
                ("Lessee"); and

                        (2) LEASE PLAN U.S.A., INC., a Georgia corporation
                ("Lessor").


                                    RECITALS

           A. Lessee has requested Lessor and the financial institutions which
are "Participants" under the Participation Agreement referred to in Recital B
below (such financial institutions to be referred to collectively as the
"Participants") to provide to Lessee a certain lease facility. Pursuant to such
facility:

                     (1) Lessor would (a) acquire certain property designated by
           Lessee (either through purchase or lease), (b) lease to Lessee such
           property and certain other property currently held by Lessor, (c)
           appoint Lessee as Lessor's agent to make certain improvements to a
           portion of such property, (d) make advances to finance such
           improvements and to pay certain related expenses, and (e) grant to
           Lessee the right to purchase such property; and

                     (2) The Participants would participate in such lease
           facility by (a) funding the purchase prices and other advances to be
           made by Lessor and (b) acquiring participation interests in the
           rental and certain other payments to be made by Lessee.

           B. Pursuant to a Participation Agreement dated of even date herewith
(the "Participation Agreement") among Lessee, Lessor, the Participants and ABN
AMRO Bank N.V., as agent for the Participants (in such capacity, "Agent"),
Lessor and the Participants have agreed to provide such lease facility upon the
terms and subject to the conditions set forth therein, including without
limitation the execution and delivery of this Agreement setting forth the terms
of Lessee's construction obligations.


                                    AGREEMENT

           NOW, THEREFORE, in consideration of the above Recitals and the mutual
covenants herein contained, the parties hereto hereby agree as follows:
   313
SECTION 1. INTERPRETATION.

           1.01. Definitions. Unless otherwise indicated in this Agreement or
any other Operative Document, each term set forth in Schedule 1.01 to the
Participation Agreement, when used in this Agreement or any other Operative
Document, shall have the respective meaning given to that term in such Schedule
1.01 or in the provision of this Agreement or other document, instrument or
agreement referenced in such Schedule 1.01.

           1.02. Rules of Construction. Unless otherwise indicated in this
Agreement or any other Operative Document, the rules of construction set forth
in Schedule 1.02 to the Participation Agreement shall apply to this Agreement
and the other Operative Documents.


SECTION 2. APPOINTMENT; AUTHORITY.

           2.01. Appointment. Lessor hereby appoints Lessee and Lessee hereby
agrees to act as Lessor's agent for the construction of the New Improvements to
the Tract 1 Property, the Tract 3 Property, the Tract 4 Property and the Tract 5
Property.

           2.02. Scope of Authority. Lessee shall have the authority to perform
all acts expressly delegated to or undertaken by Lessee under this Agreement and
all other acts reasonably necessary to complete the construction of the New
Improvements in accordance with the Plans and Specifications, this Agreement,
the other Operative Documents, all applicable Governmental Rules and all
applicable Insurance Requirements; provided, however, that no Lessor Party shall
have any obligation to pay any fees, costs or expenses related to such
construction (except to the extent of Lessor's obligation to make, and the
Participants' obligations to fund, Advances pursuant to the Participation
Agreement) and Lessee shall have no authority to, and shall not, enter into any
agreement which would, directly or indirectly, require any Lessor Party to pay
any such fees, costs or expenses or otherwise impose upon any Lessor Party any
liability or obligation. Subject to the terms and conditions of this Agreement
and the other Operative Documents, Lessee shall have sole management and control
over the construction means, methods, sequences and procedures with respect to
the construction of the New Improvements.

           2.03. Delegation of Duties. Lessee may employ such architects,
engineers, contractors, consultants, agents, employees and other Persons as
Lessee determines are necessary or appropriate to construct the New Improvements
and perform its other obligations and duties hereunder and may delegate to such
Persons any or all of such obligations and duties; provided, however, that no
such employment or delegation shall limit or reduce in any way Lessee's
obligations and duties under this Agreement.


SECTION 3. LESSEE'S OBLIGATIONS AND DUTIES.

           3.01. Plans and Specifications. Lessee shall deliver to Lessor, for
approval by Lessor and Agent, the Plans and Specifications for all new
improvements it elects to make to each Tract of Property. Once any Plans and
Specifications for any Tract of Property are so delivered and

                                       2
   314

approved by Lessor and Agent, Lessee shall not agree to or permit any revision,
amendment, supplementation or other modification to such Plans and
Specifications without the written consent of Lessor if such revision,
amendment, supplementation or modification (either alone or together with all
prior revisions, amendments, supplementations and modifications to all Plans and
Specifications for all of the Tracts of Property) is reasonably likely to:

                     (a) Cause the Acquisition Prices plus all other costs and
           expenses of acquiring all of the Tracts of Property and constructing
           all of the New Improvements to all the Tracts of Property in
           accordance with this Agreement (including all Permitted Improvement
           Costs and Permitted Transaction Expenses paid or to be paid with
           Advances) to exceed the lesser of (i) the Total Commitment and (ii)
           the sum of the most recent Expiration Date Appraisals for all of the
           Tracts of Property (or, in the case of any Tract of Property for
           which Lessee does not deliver an Expiration Date Appraisal, the
           Closing Date Appraisal therefor) ;

                     (b) Make it difficult or impossible to Complete the
           construction of all the New Improvements to such Tract of Property in
           accordance with this Agreement on or prior to the Outside Completion
           Date; or

                     (c) Cause the Fair Market Value of such Tract of Property
           to be less than the most recent Expiration Date Appraisal for such
           Tract of Property (or, in the case of any Tract of Property for which
           Lessee does not deliver an Expiration Date Appraisal, the Closing
           Date Appraisal therefor) or otherwise decrease in any material
           amount.

Lessee shall notify Lessor promptly in writing of any revision, amendment,
supplementation or other modification to the Plans and Specifications.

           3.02. Construction Agreements. Lessee has entered or shall, on a
timely basis, enter into such agreements with architects, engineers,
contractors, consultants, materialmen, suppliers, agents, employees and other
Persons as are necessary or appropriate to construct the New Improvements and
perform Lessee's other obligations and duties hereunder in connection therewith
(together with the Plans and Specifications, the "Construction Agreements").
Each Construction Agreement shall expressly permit the assignment of Lessee's
rights thereunder to Lessor without the consent of the other party(ies) to such
agreement. Upon Lessor's request, Lessee shall deliver to Lessor copies of any
or all Construction Agreements.

           3.03. Permits, Approvals, Etc. Prior to the time they are required,
Lessee shall obtain from Governmental Authorities and other Persons all
licenses, approvals, authorizations, consents, permits, easements and
rights-of-way that are necessary for the construction of any New Improvements in
accordance with this Agreement. Upon Lessor's request, Lessee shall deliver to
Lessor copies of any or all such licenses, approvals, authorizations, consents,
permits, easements and rights-of-way.

           3.04. Material and Supplies. Lessee shall obtain all materials and
supplies necessary to construct the New Improvements. Lessee shall cause all
such materials and supplies (a) to be purchased in a manner that will result in
the ownership thereof vesting unconditionally in Lessor, 

                                       3
   315

free from all Liens (other than Liens that attach in favor of the materialmen or
subcontractors that supply and/or install such materials and supplies); (b) to
be stored at the applicable Tract of Land under adequate safeguards to minimize
the possibility of loss, theft, damage or commingling with other materials or
projects; and (c) to be covered by the insurance policies required under this
Agreement and the other Operative Documents. Upon Lessor's request, Lessee shall
deliver to Lessor copies of any contracts, bills of sale, statements, receipts,
vouchers or agreements for the materials and supplies used or to be used in the
construction of the New Improvements.

           3.05      Construction.

                     (a) Manner. Lessee shall construct the New Improvements
           (including all foundations and structural portions thereof; all
           plumbing, heating, air conditioning and electrical systems; and all
           water, sewer, electric, gas, telephone and drainage facilities) in a
           good and workmanlike manner, free from any material defect in design
           or construction, in accordance with the Plans and Specifications,
           this Agreement, the other Operative Documents, all applicable
           Governmental Rules and all applicable Insurance Requirements.

                     (b) Completion. Lessee shall Complete the construction of
           the New Improvements to all Tracts of Property on which New
           Improvements are to be constructed on or prior to the Outside
           Completion Date. "Completion" shall occur for the New Improvements to
           a Tract of Property when each of the following conditions has been
           satisfied:

                               (i) The New Improvements to such Tract of
                     Property have been completed in accordance with this
                     Agreement, are in first class working condition and are
                     ready for occupancy and use as a facility as described in
                     clause (ii) under the heading for the applicable Tract of
                     Property in Schedule 4.01(s) to the Participation
                     Agreement. This shall include, without limiting the
                     generality of the preceding sentence, evidence that (A) all
                     utilities required to adequately service such New
                     Improvements for their intended use are available and
                     "tapped on" and hooked up pursuant to adequate permits
                     (including any that may be required under applicable
                     Environmental Laws) and (B) access to such New Improvements
                     for pedestrians and motor vehicles from publicly dedicated
                     streets and public highways are available.

                               (ii) Lessee shall have furnished to Lessor each
                     of the following:

                                         (A) A certificate of Lessee in the form
                               of Exhibit A, duly executed by Lessee;

                                          (B) A certificate of an architect
                               acceptable to Lessor in the form of Exhibit B,
                               duly executed by such architect, together with
                               copies of each of the documents referred to
                               therein;

                                       4
   316
                                          (C) A date-down endorsement to or
                               reissued title insurance policies or binders
                               delivered by Lessee pursuant to Paragraph 3.02
                               and Schedule 3.02 of the Participation Agreement;

                                          (D) Copies of all mechanic's or
                               materialman's lien waivers and releases as
                               required by Lessor; and

                                          (E) Certificate of final occupancy
                               issued by the appropriate Governmental Authority.

        3.06. Insurance. Lessee (and its general contractor) shall maintain
policies of casualty and liability insurance as provided in Paragraph 3.03 of
the Lease Agreement.

        3.07. Fees, Costs and Expenses.

                     (a) Lessee's Responsibility. Except to the extent such
           fees, costs and expense are paid by Advances, Lessee shall pay all
           fees, costs and expenses of constructing the New Improvements from
           its own funds.

                     (b) Prompt Payment. Lessee shall pay promptly all fees,
           costs and expenses of architects, engineers, contractors,
           materialmen, suppliers, consultants, agents, employees and other
           Persons which provide services, materials or supplies in connection
           with the construction of the New Improvements and all other fees,
           costs and expenses related to such construction.

                     (c) No Lessee Fee. Lessee shall not be entitled to any fee
           for the performance of its obligations and duties hereunder or any
           other compensation in connection with this Agreement.

           3.08. Books and Records. Lessee shall maintain accurate books and
records, in reasonable detail, relating to the construction of the New
Improvements and shall permit Lessor to inspect the same and make copies
thereof, at Lessee's expense, upon reasonable notice to Lessee.

           3.09. Additional Obligations and Duties. In addition to the
obligations and duties set forth above in this Section 3, Lessee shall perform
all other acts reasonably necessary to achieve Completion of the construction of
the New Improvements in accordance with the Plans and Specifications, this
Agreement, the other Operative Documents, all applicable Governmental Rules and
all applicable Insurance Requirements.


SECTION 4. MISCELLANEOUS.

           4.01. Notices. Except as otherwise specified herein, all notices,
requests, demands, consents, instructions or other communications to or upon
Lessee or Lessor under this 

                                       5
   317

Agreement shall be given as provided in Subparagraph 2.02(c) and Paragraph 7.01
of the Participation Agreement.

           4.02. Waivers; Amendments. Any term, covenant, agreement or condition
of this Agreement may be amended or waived only as provided in the Participation
Agreement. No failure or delay by any Lessor Party in exercising any right
hereunder shall operate as a waiver thereof or of any other right nor shall any
single or partial exercise of any such right preclude any other further exercise
thereof or of any other right. Unless otherwise specified in any such waiver or
consent, a waiver or consent given hereunder shall be effective only in the
specific instance and for the specific purpose for which given.

           4.03. Successors and Assigns. This Agreement shall be binding upon
and inure to the benefit of the Lessor Parties and Lessee and their permitted
successors and assigns; provided, however, that the Lessor Parties and Lessee
shall not sell, assign or delegate their respective rights and obligations
hereunder except as provided in the Participation Agreement.

           4.04. No Third Party Rights. Nothing expressed in or to be implied
from this Agreement is intended to give, or shall be construed to give, any
Person, other than the Lessor Parties and Lessee and their permitted successors
and assigns, any benefit or legal or equitable right, remedy or claim under or
by virtue of this Agreement or under or by virtue of any provision herein.

           4.05. Partial Invalidity. If at any time any provision of this
Agreement is or becomes illegal, invalid or unenforceable in any respect under
the law or any jurisdiction, neither the legality, validity or enforceability of
the remaining provisions of this Agreement nor the legality, validity or
enforceability of such provision under the law of any other jurisdiction shall
in any way be affected or impaired thereby.

           4.06. Governing Law. This Agreement shall be governed by and 
construed in accordance with the laws of the State of California without
reference to conflicts of law rules.

           4.07. Counterparts. This Agreement may be executed in any number of
identical counterparts, any set of which signed by all the parties hereto shall
be deemed to constitute a complete, executed original for all purposes.

           4.08.     Nature of Lessee's Obligations.

                     (a) Independent Obligation. The obligation of Lessee to
           construct the New Improvements pursuant to this Agreement and the
           other Operative Documents and to perform the other Lessee Obligations
           are absolute, unconditional and irrevocable obligations which are
           separate and independent of the obligations of the Lessor Parties
           under this Agreement and the other Operative Documents and all other
           events and circumstances, including the events and circumstances set
           forth in Subparagraph 4.08(c).

                     (b) No Termination or Abatement. This Agreement and the
           other Operative Documents and Lessee's obligation to construct the
           New Improvements and to pay and 

                                       6
   318

           perform all other Lessee Obligations shall continue in full
           force and effect without abatement notwithstanding the
           occurrence or existence of any event or circumstance, including
           any event or circumstance set forth in Subparagraph 4.08(c).

                     (c) Full Payment and Performance. Lessee shall perform all
           of its obligations under this Agreement and the other Operative
           Documents in the manner and at the times required by the terms of
           this Agreement and the other Operative Documents without setoff,
           deduction or reduction of any kind and shall perform all other Lessee
           Obligations as and when required, without regard to any event or
           circumstances whatsoever, including (i) the condition of the Property
           (including any Improvements to the Property made prior to the
           Commencement Date or during the Term); (ii) title to the Property
           (including possession of the Property by any Person or the existence
           of any Lien or any other right, title or interest in or to any of the
           Property in favor of any Person); (iii) the value, habitability,
           useability, design, operation or fitness for use of the Property;
           (iv) the availability or adequacy of utilities and other services to
           the Property; (v) any latent, hidden or patent defect in the
           Property; (vi) the zoning or status of the Property or any other
           restrictions on the use of the Property; (g) the economics of the
           Property; (vii) any Casualty or Condemnation; (viii) the compliance
           of the Property with any applicable Governmental Rule or Insurance
           Requirement; (ix) any failure by any Lessor Party to perform any of
           its obligations under this Agreement or any other Operative Document;
           or (x) the exercise by any Lessor Party of any of its remedies under
           this Agreement or any other Operative Document; provided, however,
           that (A) Lessor shall have no obligation to continue constructing the
           New Improvements at any time the Lessor Parties are refusing to make
           any Advance in violation of the Participation Agreement and (B) this
           Paragraph 4.08 shall not abrogate any right which Lessee may have to
           recover damages from any Lessor Party for any material breach by such
           Lessor Party of its obligations under this Agreement or any other
           Operative Document to the extent permitted hereunder or thereunder.

                          [The signature page follows.]

                                       7
   319

           IN WITNESS WHEREOF, Lessee and Lessor have caused this Agreement to
be executed as of the day and year first above written.

LESSEE:                                   KLA-TENCOR CORPORATION


                                          By: _________________________________
                                                 Name:_________________________
                                                 Title:________________________


LESSOR:                                   LEASE PLAN U.S.A., INC.


                                          By: _________________________________
                                                 Name:_________________________
                                                 Title:________________________

                                       8
   320

                                    EXHIBIT A

                         LESSEE'S COMPLETION CERTIFICATE

                             ________________, 1997

Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
  as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY 10019
Attn:  Linda Boardman

           1.        Reference is made to the following:

                     (a) The Participation Agreement, dated as of November 12,
           1997 (the "Participation Agreement"), among KLA-Tencor Corporation
           ("Lessee"), Lease Plan U.S.A., Inc. ("Lessor"), the financial
           institutions listed in Schedule I to the Participation Agreement (the
           "Participants") and ABN AMRO Bank N.V., as agent for the Participants
           (in such capacity, "Agent"); and

                     (b) The Construction Agency Agreement, dated as of November
           12, 1997 (the "Construction Agency Agreement"), between Lessee and
           Lessor.

Unless otherwise indicated, all terms defined in the Participation Agreement
have the same respective meanings when used herein.

           2. Lessee hereby certifies to Lessor, for the benefit of all of the
Lessor Parties, as follows:

                     (a) Lessee has completed all of the New Improvements to the
           Tract [__] Property in accordance with the Plans and Specifications,
           the Construction Agency Agreement, the other Operative Documents, all
           applicable Governmental Rules and all applicable Insurance
           Requirements and the New Improvements now are ready for use and
           occupancy as a facility described in clause (ii) under the heading
           "Tract [__] Property" in Schedule 4.01(s) to the Participation
           Agreement.

                     (b) All amounts payable to third parties for the
           construction of such New Improvements have been paid in full (other
           than amounts which Lessee is contesting in accordance with the Lease
           Agreement).

                     (c) No changes or modifications that have had an adverse
           effect on the value, use or useful life of the Tract [__] Property
           were made to the Plans and Specifications for the New Improvements to
           such Property after the date the Plans and Specifications for such
           Property were approved by Lessor, Agent and the Participants pursuant
           to Subparagraph 2.01(c) of the Participation Agreement.

                                      A-1
   321

                     (d) The representations and warranties relating to the
           Tract [__] Property set forth in Subparagraph 4.01(s) of the
           Participation Agreement and Schedule 4.01(s) to the Participation
           Agreement and the other representations and warranties of Lessee set
           forth in the Operative Documents are true and correct in all material
           respects on the date hereof (except for representations and
           warranties expressly made as of a specified date, which shall be true
           as of such date).

                     (e) No Default has occurred and is continuing.

                     (f) All of the Operative Documents are in full force and
effect.

           IN WITNESS WHEREOF, Lessee has executed this Lessee's Completion
Certificate on the date set forth above.

                                           KLA-TENCOR CORPORATION

                                           By:_________________________________
                                                  Name:________________________
                                                  Title:_______________________


                                      A-2
   322

                                    EXHIBIT B

                       ARCHITECT'S COMPLETION CERTIFICATE

                             ________________, 1997

Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
  as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY 10019
Attn:  Linda Boardman


           1.        Reference is made to the following:

                     (a) The [____________] Agreement, dated as of [____] (the
           "Architect's Agreement"), between KLA-Tencor Corporation ("Lessee")
           and [__________] ("Architect"); and

                     (b) The plans and specifications dated as of [_______]
           prepared by Architect for certain improvements to the property
           located at [_______________] (the "Plans and Specifications").

           2. The undersigned hereby certifies to you as follows:

                     (a) The improvements contemplated by the Plans and
           Specifications (the "Improvements") have been completed substantially
           in accordance with such Plans and Specifications, a final certificate
           of occupancy has been issued by the appropriate governmental agency,
           and the Improvements are ready for use and occupancy.

                     (b) To the best of [my][our] knowledge, the Improvements as
           so completed comply with all applicable laws, rule, regulations and
           ordinances pertaining to the construction and occupancy thereof,
           including applicable building and zoning laws, rule, regulations and
           ordinances, and the Americans with Disabilities Act of 1990, 42
           U.S.C. Section 1210 et seq.

                     (c) No changes or modifications were made to the Plans and
           Specifications after the date thereof that have had an adverse effect
           on the value, use or useful life of the Property.

                     (d) Attached hereto are true and complete copies of an "as
           built" or "record" set of the plans and specifications for the
           Improvements, and an ALTA survey of the property "as built" showing
           all paving, driveways, fences and exterior improvements.



                                      B-1
   323

           IN WITNESS WHEREOF, the undersigned has executed this Architect's
Completion Certificate on the date set forth above.

                                              [Name of Architectural Firm]

                                              By:______________________________
                                                     Name:_____________________
                                                     Title:____________________

                                      B-2
   324
                                                                  EXECUTION COPY
================================================================================


                          CONSTRUCTION AGENCY AGREEMENT


                                     BETWEEN


                             KLA-TENCOR CORPORATION


                                       AND


                             LEASE PLAN U.S.A., INC.





                                NOVEMBER 12, 1997


================================================================================
   325


                                TABLE OF CONTENTS

                                                                        PAGE
                                                                    
SECTION 1.  INTERPRETATION................................................2

1.01.    Definitions......................................................2

1.02.    Rules of Construction............................................2

SECTION 2.  APPOINTMENT; AUTHORITY........................................2

2.01.    Appointment......................................................2

2.02.    Scope of Authority...............................................2

2.03.    Delegation of Duties.............................................2

SECTION 3.  LESSEE'S OBLIGATIONS AND DUTIES...............................2

3.01.    Plans and Specifications.........................................2

3.02.    Construction Agreements..........................................3

3.03.    Permits, Approvals, Etc..........................................3

3.04.    Material and Supplies............................................3

3.05     Construction.....................................................4

3.06.    Insurance........................................................5

3.07.    Fees, Costs and Expenses.........................................5

3.08.    Books and Records................................................5

3.09.    Additional Obligations and Duties................................5

SECTION 4.  MISCELLANEOUS.................................................5

4.01.    Notices..........................................................5

4.02.    Waivers; Amendments..............................................6

4.03.    Successors and Assigns...........................................6

4.04.    No Third Party Rights............................................6

4.05.    Partial Invalidity...............................................6

4.06.    Governing Law....................................................6

4.07.    Counterparts.....................................................6

4.08.    Nature of Lessee's Obligations...................................6


                                       -i-

   326



                                TABLE OF CONTENTS
                                                                     PAGE
EXHIBITS
- ---------
                                                              
           A         Lessee's Completion Certificate (3.05(c))
           B         Architect's Completion Certificate (3.05(c)


                                      -ii-
   327
                                             
                           CONSTRUCTION DEED OF TRUST

        THIS CONSTRUCTION DEED OF TRUST dated as of November 12, 1997 (this
"Deed of Trust"), is made by LEASE PLAN U.S.A., INC., a Georgia corporation, as
trustor ("Lessor"), with an address at 135 South LaSalle Street, Chicago, IL
60603, to SANTA CLARA LAND TITLE COMPANY, as trustee ("Trustee"), in favor of
ABN AMRO BANK N.V., with an address at 1325 Avenue of the Americas, 9th Floor,
New York, NY 10019, in its capacity as Agent, as beneficiary (in such capacity,
"Agent"), under the Participation Agreement, dated of even date herewith (as
amended, supplemented or otherwise modified from time to time, the
"Participation Agreement"), among KLA-Tencor Corporation, a Delaware corporation
("Lessee"), Lessor, Agent, and the financial institutions from time to time
parties to the Participation Agreement (the "Participants").

SECTION 1.     INTERPRETATION.

        1.01. Definitions. Unless otherwise indicated in this Deed of Trust or
any other Operative Document, each term set forth in Schedule 1.01 to the
Participation Agreement, when used in this Deed of Trust or any other Operative
Document, shall have the respective meaning given to that term in such Schedule
1.01 or in the provision of this Deed of Trust or other document, instrument or
agreement referenced in such Schedule 1.01. All terms defined in the UCC shall
have the respective meanings given to those terms in the UCC.

        1.02. Rules of Construction. Unless otherwise indicated in this Deed of
Trust or any other Operative Document, the rules of construction set forth in
Schedule 1.02 to the Participation Agreement shall apply to this Deed of Trust
and the other Operative Documents.

SECTION 2.     GRANT IN TRUST

        2.01. Property. To secure payment of the Secured Obligations (as defined
below), Lessor does hereby GRANT, CONVEY, SELL, TRANSFER, ASSIGN AND SET OVER
UNTO TRUSTEE, IN TRUST FOR THE BENEFIT OF AGENT, WITH POWER OF SALE AND RIGHT OF
ENTRY AND POSSESSION, all of Lessor's right, title and interest, whether now
owned or hereafter acquired, in or to the following property and rights listed
below (such right, title and interest in such property and rights hereinafter
collectively referred to as the "Property") to the extent of Lessor's estate,
right, title and interest therein, thereto or thereunder:

               (a) All lots, pieces, tracts and parcels of land described in
        Exhibit A together with such additional parcels of real property as may
        be added to Exhibit A from time to time during the term hereof (the
        "Land");

               (b)    All Improvements and Appurtenant Rights;

               (c) All Related Goods (including those described in Exhibit B and
        in each Exhibit B Supplement), Related Permits and Related Agreements;
        and

               (d) All accessions and accretions to and replacements and
        substitutions for the foregoing.

   328

SECTION 3.     OBLIGATIONS SECURED

        3.01. Obligations Secured. Lessor makes this grant and assignment for
the purpose of securing the following obligations (hereinafter "Secured
Obligations"):

                (a) Full and punctual payment, performance and observance by
        Lessor of the Lessor Obligations; and

                (b) All modifications, extensions and renewals of any of the
        obligations secured hereby, however evidenced, including, without
        limitation: (i) modifications of the required payment, deferring or
        accelerating payment dates wholly or partly; or (ii) amendments,
        modifications, extensions or renewals of this Deed of Trust, the
        Participation Agreement or any of the other Operative Documents.

SECTION 4.     REPRESENTATIONS, WARRANTIES, COVENANTS AND DUTIES OF THE PARTIES.

        4.01.  Representations and Warranties. Lessor represents and warrants to
Agent as follows:

               (a) Lessor is the legal and beneficial owner of the Property (or,
        in the case of after-acquired Property, at the time Lessor acquires
        rights in the Property, will be the legal and beneficial owner thereof).

               (b) Lessor has not transferred to any other Person any of its
        right, title or interest in the Property, whether by way of Lien or
        otherwise.

               (c) Lessor's chief executive office is located at 180 Interstate
        Parkway North, Atlanta, Georgia 30339.

        4.02.  Covenants.  Lessor hereby covenants to Agent as follows:

               (a) Lessor shall promptly procure, execute and deliver to Agent
        all documents, instruments and agreements and perform all acts which are
        necessary or desirable, or which Agent may request, to establish,
        maintain, preserve, protect and perfect the Property, the Lien granted
        to Agent therein and the first priority of such Lien or to enable Agent
        to exercise and enforce its rights and remedies hereunder with respect
        to any Property.

               (b) Lessor shall not sell, transfer or assign any of its right,
        title or interest in the Property to any Person (other than Agent),
        whether by way of Lien or otherwise.

               (c) Without prompt written notice to Agent, Lessor shall not
        change Lessor's name or chief executive office.



                                       2
   329

        4.03.  Damages; Insurance and Condemnation Proceeds.

               (a) Lessor shall give Agent prompt written notice of the
        occurrence of any casualty affecting, or the institution of any
        proceedings for eminent domain or for the condemnation of, the Property
        or any portion thereof. Agent may participate in any such claims or
        proceedings, and Agent is hereby authorized, in its own name or in
        Lessor's name, to adjust any loss covered by insurance or any
        condemnation claim or cause of action, and to settle or compromise any
        claim or cause of action in connection therewith, and Lessor shall from
        time to time deliver to Agent any and all further assignments and other
        instruments required to permit such participation. The provisions
        regarding the adjustment of any loss covered by insurance or any
        condemnation claim or cause of action, and to settlement or compromise
        of any claim or cause of action in connection therewith provided in this
        Section 4.03(a) are subject to the adjustment, settlement and compromise
        provisions set forth in the Lease Agreement. In the event of any
        conflict, the adjustment, settlement and compromise provisions as
        provided in the Lease Agreement shall govern.

               (b) The following rights, claims and amounts are hereby
        absolutely and irrevocably assigned to and shall be paid to Agent: (i)
        all awards of damages and all other compensation payable directly or
        indirectly by reason of a condemnation or proposed condemnation for
        public or private use affecting all or any part of, or any interest in,
        the Property; (ii) all other claims and awards for damages to or
        decrease in value of all or any part of, or any interest in, the
        Property; (iii) all proceeds of any insurance policies payable by reason
        of loss sustained to all or any part of the Property; and (iv) all
        interest which may accrue on any of the foregoing (collectively, "Loss
        Proceeds"). The provisions regarding Loss Proceeds provided in this
        Section 4.03(b) are subject to the insurance and condemnation provisions
        set forth in the Lease Agreement. In the event of any conflict, the
        insurance and condemnation provisions as provided in the Lease Agreement
        shall govern.

        4.04. Acceptance of Trust; Powers and Duties of Trustee. Trustee accepts
this trust when this Deed of Trust is recorded. From time to time upon written
request of Agent and presentation of this Deed of Trust, or a certified copy
thereof, for endorsement, and without affecting the personal liability of any
person for payment of any indebtedness or performance of any Secured Obligation,
Trustee may, without liability therefor and without notice: (a) reconvey all or
any part of the Property; (b) consent to the making of any map or plat thereof;
(c) join in granting any easement thereon; (d) join in any declaration of
covenants and restrictions; or (e) join in any extension agreement or any
agreement subordinating the lien or charge hereof. Except as may otherwise be
required by applicable law, Trustee or Agent may from time to time apply to any
court of competent jurisdiction for aid and direction in the execution of the
trusts hereunder and the enforcement of the rights and remedies available
hereunder, and Trustee or Agent may obtain orders or decrees directing or
confirming or approving acts in the execution of said trusts and the enforcement
of said remedies. Trustee has no obligation to notify any party of any pending
sale or any action or proceeding (including, without limitation, actions in
which Lessor, Agent or Trustee shall be a party) unless held or commenced and
maintained by Trustee under this Deed of Trust. Trustee shall not be obligated
to perform any act required of it 



                                       3
   330

hereunder unless the performance of the act is requested in writing and Trustee
is reasonably indemnified and held harmless against loss, cost, liability and
expense.

        4.05. Substitution of Trustee. From time to time, by a writing signed
and acknowledged by Agent and recorded in the Office of the Recorder of the
County in which the Property is situated, Agent may appoint another trustee to
act in the place and stead of Trustee or any successor. Such writing shall set
forth any information required by law. The recordation of such instrument of
substitution shall discharge Trustee herein named and shall appoint the new
trustee as the trustee hereunder with the same effect as if originally named
trustee herein. A writing recorded pursuant to the provisions of this paragraph
shall be conclusive proof of the proper substitution of such new trustee.

        4.06. Partial and Full Reconveyance. Agent may release, for such
consideration or none, as it may require, any portion of the Property without,
as to the remainder of the Property, in any way impairing or affecting the lien,
security interest and priority herein provided to the Agent as to any other lien
holder or secured party. Further, upon satisfaction in full of the Secured
Obligations, or upon Agent's written request, and upon surrender of this Deed of
Trust or certified copy thereof and any note, instrument or instruments setting
forth all obligations secured hereby to Trustee for cancellation, Trustee shall
reconvey, without warranty, the Property or that portion thereof then held
hereunder. The recitals of any matters or facts in any reconveyance executed
hereunder shall be conclusive proof of the truthfulness thereof. To the extent
permitted by law, the reconveyance may describe the grantee as "the person or
persons legally entitled thereto." Neither Agent nor Trustee shall have any duty
to determine the rights of persons claiming to be rightful grantees of any
reconveyance.

        4.07. Releases, Extensions, Modifications and Additional Security. Agent
may, from time to time, release any person or entity from liability for the
payment or performance of any Secured Obligation, take any action or make any
agreement extending the maturity or otherwise altering the terms or increasing
the amount of any Secured Obligation, or accept additional security or release
all or a portion of the Property and other security for the Secured Obligations.
None of the foregoing actions shall release or impair the priority of the lien
of this Deed of Trust upon the Property.

SECTION 5.     DEFAULT; REMEDIES.

        5.01. Event of Default. The occurrence of any of the following events
shall be deemed an event of default ("Event of Default") hereunder:

               (a)    The occurrence of an Event of Default as defined in the
        Lease Agreement; or

               (b) Lessor shall fail to observe, perform or discharge any of
        Lessor's Obligations, and (i) such failure shall remain uncured for
        thirty (30) days after written notice thereof shall have been given to
        Lessor by Agent, or (ii) if such failure is of such a nature that it
        cannot be cured within such thirty (30) day period, Lessor shall fail to
        commence to cure such failure within such thirty (30) day period or
        shall fail to diligently prosecute such curative action thereafter.



                                       4
   331

        5.02. Rights and Remedies. At any time after the occurrence and during
the continuance of an Event of Default, Agent and Trustee shall each have all of
the following rights and remedies:

               (a) Appointment of a Receiver. To apply to any court of competent
        jurisdiction for, and obtain appointment of, a receiver for the
        Property.

               (b) Specific Performance. To bring an action in any court of
        competent jurisdiction to obtain specific enforcement of any of the
        covenants or agreements of Lessor in this Deed of Trust or any of the
        other Operative Documents.

               (c) Collection of Issues and Profits. To collect Issues and
Profits.

               (d) Protection of Property. To enter, take possession of, manage
        and operate all or any part of the Property or take any other actions
        which it reasonably determines are necessary to protect the Property and
        the rights and remedies of Agent under this Deed of Trust and the other
        Operative Documents, including (i) taking and possessing all of Lessor's
        books and records; (ii) entering into, enforcing, modifying, or
        canceling subleases on such terms and conditions as Agent may consider
        proper; (iii) obtaining and evicting tenants; (iv) fixing or modifying
        sublease rents; (v) collecting and receiving any payment of money owing
        to Lessee; (vi) completing any unfinished Improvements; and/or (vii)
        contracting for and making repairs and alterations.

               (e) Uniform Commercial Code Remedies. To exercise any or all of
        the remedies granted to a secured party under the California Uniform
        Commercial Code.

               (f) Judicial Foreclosure. To bring an action in any court of
        competent jurisdiction to foreclose the security interest in the
        Property granted to Agent by this Deed of Trust or any of the other
        Operative Documents.

               (g) Power of Sale. To cause some or all of the Property,
        including any Personal Property Collateral, to be sold under a power of
        sale or otherwise disposed of in any combination and in any manner
        permitted by applicable Governmental Rules.

                      (i) Sales of Personal Property. Agent may dispose of any
               Personal Property Collateral separately from the sale of Real
               Property Collateral, in any manner permitted by Division 9 of the
               California Uniform Commercial Code, including any public or
               private sale, or in any manner permitted by any other applicable
               Governmental Rule. Any proceeds of any such disposition shall not
               cure any Event of Default or reinstate any Lessor Obligation for
               purposes of Section 2924c of the California Civil Code. In
               connection with any such sale or other disposition, Lessor agrees
               that the following procedures constitute a commercially
               reasonable sale:

                             (A) Agent shall mail written notice of the sale to
                      Lessor not later than thirty (30) days prior to such sale.



                                       5
   332

                             (B) Once per week during the three weeks
                      immediately preceding such sale, Agent will publish notice
                      of the sale in a local daily newspaper of general
                      circulation.

                             (C) Upon receipt of any written request, Agent will
                      make the Property available to any bona fide prospective
                      purchaser for inspection during reasonable business hours.

                             (D) Notwithstanding anything to the contrary
                      herein, Agent shall be under no obligation to consummate a
                      sale if, in its judgment, none of the offers received by
                      it equals the fair value of the Property offered for sale.

                             (E) If Agent so requests, Lessor shall assemble all
                      of the Personal Property Collateral and make it available
                      to Agent at the site of the Land. Regardless of any
                      provision of this Deed of Trust or any other Operative
                      Document, Agent shall not be considered to have accepted
                      any property other than cash or immediately available
                      funds in satisfaction of any Lessor Obligation, unless
                      Agent has given express written notice of its election of
                      that remedy in accordance with California Uniform
                      Commercial Code Section 9505.

               The foregoing procedures do not constitute the only procedures
               that may be commercially reasonable.

                      (ii) Agent's Sales of Real Property or Mixed Collateral.
               Agent may choose to dispose of some or all of the Property which
               consists solely of Real Property Collateral in any manner then
               permitted by applicable Governmental Rules, including without
               limitation a nonjudicial trustee's sale pursuant to California
               Civil Code ss.ss. 2924 et seq. In its discretion, Agent may also
               or alternatively choose to dispose of some or all of the
               Property, in any combination consisting of both Real Property
               Collateral and Personal Property Collateral, together in one sale
               to be held in accordance with the law and procedures applicable
               to real property, as permitted by Section 9501(4) of the
               California Uniform Commercial Code. Lessor agrees that such a
               sale of Personal Property Collateral together with Real Property
               Collateral constitutes a commercially reasonable sale of the
               Personal Property Collateral. (For purposes of this power of
               sale, either a sale of Real Property Collateral alone, or a sale
               of both Real Property Collateral and Personal Property Collateral
               together in accordance with California Uniform Commercial Code
               Section 9501(4), will sometimes be referred to as an "Agent's
               Sale.")

                             (A) Before any Agent's Sale, Agent shall give such
                      notice of default and election to sell as may then be
                      required by applicable Governmental Rules.

                                       6
   333

                             (B) When all time periods then legally mandated
                      have expired, and after such notice of sale as may then be
                      legally required has been given, Agent shall sell the
                      property being sold at a public auction to be held at the
                      time and place specified in the notice of sale.

                             (C) Agent shall have no obligation to make demand
                      on Lessor before any Agent's Sale.

                             (D) From time to time in accordance with then
                      applicable law, Agent may postpone any Agent's Sale by
                      public announcement at the time and place noticed for that
                      sale.

                             (E) At any Agent's Sale, Agent shall sell to the
                      highest bidder at public auction for cash in lawful money
                      of the United States.

                             (F) Agent shall execute and deliver to the
                      purchaser(s) a deed or deeds conveying the Property being
                      sold without any covenant or warranty whatsoever, express
                      or implied. The recitals in any such deed of any matters
                      or facts, including any facts bearing upon the regularity
                      or validity of any Agent's Sale, shall be conclusive proof
                      of their truthfulness. Any such deed shall be conclusive
                      against all Persons as to the facts recited in it.

               (h)    Foreclosure Sales.

                      (i) Single or Multiple. If the Property consists of more
               than one lot, parcel or item of property, Agent may:

                             (A) Designate the order in which the lots, parcels
                      and/or items shall be sold or disposed of or offered for
                      sale or disposition; and

                             (B) Elect to dispose of the lots, parcels and/or
                      items through a single consolidated sale or disposition to
                      be held or made under the power of sale granted under this
                      Deed of Trust, or in connection with judicial proceedings,
                      or by virtue of a judgment and decree of foreclosure and
                      sale; or through two or more such sales or dispositions;
                      or in any other manner Agent may deem to be in its best
                      interests (any such sale or disposition, a "Foreclosure
                      Sale;" any two or more, "Foreclosure Sales").

               If Agent chooses to have more than one Foreclosure Sale, Agent at
               its option may cause the Foreclosure Sales to be held
               simultaneously or successively, on the same day, or on such
               different days and at such different times and in such order as
               it may deem to be in its best interests. No Foreclosure Sale
               shall terminate or affect the security interests granted to Agent
               in the Property by this Deed of Trust on any part of the Property
               which has not been sold, until all of the Lessor Obligations have
               been performed in full.

                                       7
   334

                      (ii) Credit Bids. At any Foreclosure Sale, any Person,
               Participant or Agent may bid for and acquire the Property or any
               part of it to the extent permitted by then applicable
               Governmental Rules. Instead of paying cash for that property,
               Agent may settle for the purchase price by crediting the sales
               price of the Property against the Lessor Obligations in any order
               and proportions as Agent in its sole discretion may choose.

               (i) Other Rights and Remedies. To exercise any other right, power
        or remedy permitted to it by any applicable Governmental Rule, either by
        suit in equity or by action at law, or both.

        5.03. Remedies Cumulative. The rights and remedies of Agent under this
Deed of Trust and the other Operative Documents are cumulative and may be
exercised singularly, successively, or together.

        5.04. No Cure or Waiver. The exercise by Agent of any of its other
rights and remedies under this Deed of Trust or any other Operative Document
(including the collection of Issues and Profits) shall not constitute a cure or
waiver of any Event of Default or nullify the effect of any notice of default or
sale, unless and until all Lessor Obligations are performed in full.

        5.05. Exercise of Rights and Remedies. The rights and remedies provided
to Agent under this Deed of Trust may be exercised by Agent itself, by a
court-appointed receiver or by any other Person appointed by any of the
foregoing to act on its behalf. All of the benefits afforded to Agent under this
Deed of Trust and the other Operative Documents shall accrue to the benefit of
the Participants to the extent provided in Subparagraph 2.02(c) of the
Participation Agreement.

SECTION 6.     MISCELLANEOUS PROVISIONS

        6.01. Notices. Except as otherwise specified herein, all notices,
requests, demands, consents, instructions or other communications to or upon
Lessor or Agent under this Deed of Trust shall be given as provided in Paragraph
7.01 of the Participation Agreement.

        6.02. Waivers; Amendments. Any term, covenant, agreement or condition of
this Deed of Trust may be amended or waived only as provided in the
Participation Agreement. No failure or delay by Agent in exercising any right
hereunder shall operate as a waiver thereof or of any other right nor shall any
single or partial exercise of any such right preclude any other further exercise
thereof or of any other right. Unless otherwise specified in any such waiver or
consent, a waiver or consent given hereunder shall be effective only in the
specific instance and for the specific purpose for which given.

        6.03. Successors and Assigns. This Deed of Trust shall be binding upon
and inure to the benefit of the Lessor Parties and their permitted successors
and assigns; provided, however, that the Lessor Parties shall not sell, assign
or delegate their respective rights and obligations hereunder except as provided
in the Participation Agreement.

        6.04. No Third Party Rights. Nothing expressed in or to be implied from
this Deed of Trust is intended to give, or shall be construed to give, any


                                       8
   335

Person, other than the Lessor Parties and their permitted successors and
assigns, any benefit or legal or equitable right, remedy or claim under or by
virtue of this Deed of Trust or under or by virtue of any provision herein.

        6.05. Partial Invalidity. If at any time any provision of this Deed of
Trust is or becomes illegal, invalid or unenforceable in any respect under the
law or any jurisdiction, neither the legality, validity or enforceability of the
remaining provisions of this Deed of Trust nor the legality, validity or
enforceability of such provision under the law of any other jurisdiction shall
in any way be affected or impaired thereby.

        6.06. Governing Law. This Deed of Trust shall be governed by and
construed in accordance with the laws of the State of California without
reference to conflicts of law rules.

        6.07. Counterparts. This Deed of Trust may be executed in any number of
identical counterparts, any set of which signed by all the parties hereto shall
be deemed to constitute a complete, executed original for all purposes.

        6.08. Further Assurances. Lessor shall, upon demand by Agent or Trustee,
execute, acknowledge (if appropriate) and deliver any and all documents and
instruments and do or cause to be done all further acts reasonably necessary or
appropriate to effectuate the provisions hereof.

        6.09. Merger. No merger shall occur as a result of Agent's acquiring any
other estate in, or any other lien on, the Property unless Agent consents to a
merger in writing.

        6.10. Waiver of Marshalling Rights. Lessor, for itself and for all
parties claiming through or under Lessor, and for all parties who may acquire a
lien on or interest in the Property, hereby waives all rights to have the
Property and/or any other property which is now or later may be security for any
Secured Obligation marshalled upon any foreclosure of this Deed of Trust or on a
foreclosure of any other security for any of the Secured Obligations.

        6.11. Exhibits. Exhibit A is incorporated into this Deed of Trust by
this reference.

        6.12 Subordinate Deed of Trust. This Deed of Trust is junior and
subordinate to the Lease Agreement and the Purchase Agreement.

                  [Remainder of page intentionally left blank.]



                                       9
   336

        IN WITNESS WHEREOF, Lessor has caused this Deed of Trust to be executed
as of the day and year first above written.

                                             LEASE PLAN U.S.A., INC.,
                                             a Georgia  corporation


                                             By: _____________________________
                                                 Name: _______________________
                                                 Title: ______________________


                      (ALL SIGNATURES MUST BE ACKNOWLEDGED)


                                       10
   337

STATE OF CALIFORNIA                 )
                                    )
COUNTY OF________________           )

               On ___________ ___, 1997 before me, _______________________, a
Notary Public in and for the State of California, personally appeared
_______________________________, personally known to me (or proved to me on the
basis of satisfactory evidence) to be the person(s) whose name(s) is/are
subscribed to the within instrument and acknowledged to me that he/she/they
executed the same in his/her/their authorized capacity(ies), and that by
his/her/their signature(s) on the instrument the person(s), or the entity upon
behalf of which the person(s) acted, executed the instrument.

               WITNESS my hand and official seal.

               [SEAL]







   338



                                    EXHIBIT A
                          LEGAL DESCRIPTION OF THE LAND


ALL THAT CERTAIN REAL PROPERTY LOCATED IN THE COUNTY OF SANTA CLARA, CALIFORNIA,
DESCRIBED AS FOLLOWS:
















APN:  __________



                                      A-1
   339

RECORDING REQUESTED BY
AND WHEN RECORDED RETURN TO:



Thomas Y. Coleman, Esq.
Orrick, Herrington & Sutcliffe LLP
Old Federal Reserve Bank Building
400 Sansome Street
San Francisco, California  94111

- --------------------------------------------------------------------------------




                           CONSTRUCTION DEED OF TRUST
                          DATED AS OF NOVEMBER 12, 1997
                                       BY
                            LEASE PLAN U.S.A., INC.,
                              AS TRUSTOR ("LESSOR")
                                       TO
                         SANTA CLARA LAND TITLE COMPANY,
                                   AS TRUSTEE
                               FOR THE BENEFIT OF
                          ABN AMRO BANK N.V., AS AGENT,
                            AS BENEFICIARY ("AGENT")




                        RELATING TO PROPERTY SITUATED IN:
                         SANTA CLARA COUNTY, CALIFORNIA


   340


RECORDING REQUESTED BY
AND WHEN RECORDED, RETURN TO:

Orrick, Herrington & Sutcliffe
Old Federal Reserve Bank Building
400 Sansome Street
San Francisco, CA  94111
Attn:  James W. Miller, Esq.

- -------------------------------------------------------------------------------

                  FIRST AMENDMENT TO CONSTRUCTION DEED OF TRUST

        THIS FIRST AMENDMENT TO CONSTRUCTION DEED OF TRUST (this "Amendment"),
dated as of November 14, 1997, is entered into by and between LEASE PLAN U.S.A.,
INC., a Georgia corporation, as trustor ("Lessor") with an address at 135 South
LaSalle Street, Chicago, IL 60603, and ABN AMRO BANK N.V., with an address at
101 California Street, Suite 4550, San Francisco, CA 94111-5812, in its capacity
as Agent, as beneficiary (in such capacity, "Agent"), under the Participation
Agreement, dated as of November 12, 1997 (as amended, supplemented or otherwise
modified from time to time, the "Participation Agreement"), among KLA-Tencor
Corporation, a Delaware corporation ("Lessee"), Lessor, Agent, and the financial
institutions from time to time parties to the Participation Agreement (the
"Participants").

                                    RECITALS

        A. Lessor and Agent are parties to a certain Construction Deed of Trust
dated as of November 12, 1997, and recorded on November 12, 1997, in the
Official Records of Santa Clara County, California, as Document No. 13935261
(the "Lessor Deed of Trust").

        B. Pursuant to the terms of the Participation Agreement, Lessor has
acquired that certain real property described on Exhibit A attached hereto (the
"Tract 4 Land") and made a part hereof.

        C. Lessor and Agent now desire to amend the Lessor Deed of Trust to add
the Tract 4 Land to the property under the Lessor Deed of Trust.

                                    AGREEMENT

        NOW, THEREFORE, in consideration of the above recitals and for other
good and valuable consideration, the receipt and adequacy of which are hereby
acknowledged, Lessor and Agent hereby agree as follows:

        1. DEFINITIONS, INTERPRETATION. All capitalized terms defined above and
elsewhere in this Amendment shall be used herein as so defined. Unless otherwise
defined herein, all other capitalized terms used herein shall have the
respective meanings given to those terms in Schedule 1.01 to the Participation
Agreement. The rules of construction set forth in Schedule 




                                     
   341

1.02 to the Participation Agreement shall, to the extent not inconsistent with
the terms of this Amendment, apply to this Amendment and are hereby incorporated
by reference.

        2. AMENDMENT TO LESSOR DEED OF TRUST. The Lessor Deed of Trust is hereby
amended by adding to Exhibit A thereto the property description set forth in
Exhibit A to this Amendment. Without limiting the effect of such addition,
Lessor and Agent specifically acknowledge and agree that, on and after the date
hereof, (a) the lien of the Lessor Deed of Trust includes all of Lessor's right,
title and interest in and to the Tract 4 Land and (b) the terms "Land" and
"Property" as defined in the Lessor Deed of Trust include the Tract 4 Land.

        3. EFFECT OF THIS AMENDMENT. On and after the date of this Amendment,
each reference in the Lessor Deed of Trust and the other Operative Documents to
the Lessor Deed of Trust shall mean the Lessor Deed of Trust as amended hereby.
Except as specifically amended above, (a) the Lessor Deed of Trust and the other
Operative Documents shall remain in full force and effect and are hereby
ratified and affirmed and (b) the execution, delivery and effectiveness of this
Amendment shall not, except as expressly provided herein, operate as a waiver of
any right, power, or remedy of Lessor, the Participants or Agent, nor constitute
a waiver of any provision of the Lessor Deed of Trust or any other Operative
Document. 

        4. MISCELLANEOUS.

                (a) Counterparts. This Amendment may be executed in any number
        of counterparts, each of which shall be deemed an original, but all of
        which taken together shall constitute one and the same instrument. The
        signature page and acknowledgment of any counterpart may be removed
        therefrom and attached to any other counterpart to evidence execution
        thereof by all of the parties hereto without affecting the validity
        thereof.

                (b) Headings. Headings in this Amendment are for convenience of
        reference only and are not part of the substance hereof. 

                (c) Governing Law. This Amendment shall be governed by and
        construed in accordance with the laws of the State of California without
        reference to conflicts of law rules.


                          [The signature page follows.]



                                       2
   342

               IN WITNESS WHEREOF, Lessor and Agent have caused this Amendment
to be executed as of the day and year first above written.



AGENT:                               ABN AMRO BANK N.V.



                                     By:
                                        ---------------------------------------
                                        Name:
                                             ----------------------------------
                                        Title:
                                              ---------------------------------


                                     By:
                                        ---------------------------------------
                                        Name:
                                             ----------------------------------
                                        Title:
                                              ---------------------------------



LESSOR:                              LEASE PLAN U.S.A., INC.



                                     By:
                                        ---------------------------------------
                                        Name:
                                             ----------------------------------
                                        Title:
                                              ---------------------------------


                                       3
   343

 STATE OF                       )
         -----------------------)
                                )
 COUNTY OF                      )
          ----------------------


        On _____________, 1997 before me, _______________________, a Notary
Public in and for the State of California, personally appeared
_______________________________, personally known to me (or proved to me on the
basis of satisfactory evidence) to be the person(s) whose name(s) is/are
subscribed to the within instrument and acknowledged to me that he/she/they
executed the same in his/her/their authorized capacity(ies), and that by
his/her/their signature(s) on the instrument the person(s), or the entity upon
behalf of which the person(s) acted, executed the instrument.

        WITNESS my hand and official seal.

        [SEAL]

                             --------------------------------------------------



   344



 STATE OF                       )
         -----------------------)
                                )
 COUNTY OF                      )
          ----------------------


        On _____________, 1997 before me, _______________________, a Notary
Public in and for the State of California, personally appeared
_______________________________, personally known to me (or proved to me on the
basis of satisfactory evidence) to be the person(s) whose name(s) is/are
subscribed to the within instrument and acknowledged to me that he/she/they
executed the same in his/her/their authorized capacity(ies), and that by
his/her/their signature(s) on the instrument the person(s), or the entity upon
behalf of which the person(s) acted, executed the instrument.

        WITNESS my hand and official seal.

        [SEAL]

                                  --------------------------------------------



   345



 STATE OF                       )
         -----------------------)
                                )
 COUNTY OF                      )
          ----------------------

        On _____________, 1997 before me, _______________________, a Notary
Public in and for the State of California, personally appeared
_______________________________, personally known to me (or proved to me on the
basis of satisfactory evidence) to be the person(s) whose name(s) is/are
subscribed to the within instrument and acknowledged to me that he/she/they
executed the same in his/her/their authorized capacity(ies), and that by
his/her/their signature(s) on the instrument the person(s), or the entity upon
behalf of which the person(s) acted, executed the instrument.

       WITNESS my hand and official seal.

        [SEAL]

                                 ---------------------------------------------





   346


                                    EXHIBIT A

                                  TRACT 4 LAND

        THAT CERTAIN REAL PROPERTY SITUATED IN THE COUNTY OF SANTA CLARA, STATE
OF CALIFORNIA, AND DESCRIBED AS FOLLOWS:







                                      A-1
   347
                            ASSIGNMENT OF CONSTRUCTION AGREEMENTS


        THIS ASSIGNMENT OF CONSTRUCTION AGREEMENTS (this "Agreement" herein),
dated as of November 12, 1997, is executed by

               (1)    KLA-TENCOR CORPORATION, a Delaware corporation ("Lessee"),

                                   in favor of

               (2) LEASE PLAN U.S.A., INC., a Georgia corporation ("Lessor").

                                           RECITALS

        A. Lessee has requested Lessor and the financial institutions which are
"Participants" under the Participation Agreement referred to in Recital B below
(such financial institutions to be referred to collectively as the
"Participants") to provide to Lessee a certain lease facility. Pursuant to such
facility: --------- ------------

                (1) Lessor would (a) acquire certain property designated by
        Lessee (either through purchase or lease), (b) lease to Lessee such
        property and certain other property currently held by Lessor, (c)
        appoint Lessee as Lessor's agent to make certain improvements to a
        portion of such property, (d) make advances to finance such improvements
        and to pay certain related expenses, and (e) grant to Lessee the right
        to purchase such property; and

                (2) The Participants would participate in such lease facility by
        (a) funding the purchase price and other advances to be made by Lessor
        and (b) acquiring participation interests in the rental and certain
        other payments to be made by Lessee.

        B. Pursuant to a Participation Agreement dated of even date herewith
(the "Participation Agreement") among Lessee, Lessor, the Participants and ABN
AMRO Bank N.V., as agent for the Participants (in such capacity, "Agent"),
Lessor and the Participants have agreed to provide such lease facility upon the
terms and subject to the conditions set forth therein, including, without
limitation, the execution and delivery of this Agreement.

                                    AGREEMENT

        NOW, THEREFORE, in consideration of the above Recitals and the mutual
covenants herein contained, the parties hereto hereby agree as follows:

SECTION 1. INTERPRETATION.

        1.01. Definitions. Unless otherwise indicated in this Agreement or any
other Operative Document, each term set forth in Schedule 1.01 to the
Participation Agreement, when used in this Agreement or any other Operative
Document, shall have the respective meaning given to that term in such Schedule
1.01 or in the provision of this Agreement or other document, instrument or
agreement referenced in such Schedule 1.01.



                                      
   348

        1.02. Rules of Construction. Unless otherwise indicated in this
Agreement or any other Operative Document, the rules of construction set forth
in Schedule 1.02 to the Participation Agreement shall apply to this Agreement
and the other Operative Documents. 

SECTION 2. ASSIGNMENT.

        2.01. Assignment. Lessee hereby assigns to Lessor all of Lessee's right,
title and interest in, to and under all existing and future agreements and
contracts between Lessee and any other Person (collectively, the "Construction
Agreements") relating to the construction of any and all New Improvements on any
portion of the Land described in Exhibit A to the Lease Agreement, including,
without limitation, the agreements and contracts described in Exhibit A and all
future Construction Agreements which may be entered into by Lessee. Upon
execution of any new Construction Agreement, Lessee shall promptly notify Lessor
of such Construction Agreement. Upon Lessor's request, Lessee shall provide
Lessor with copies of the Construction Agreements.

        2.02. Absolute Assignment. This Agreement constitutes a present and
absolute assignment to Lessor; provided, however, that Lessor may not enforce
the terms of the Construction Agreements except during continuance of an Event
of Default. Upon the occurrence of any Event of Default, Lessor may, in its sole
discretion, give notice to any of the contractors referred to in the
Construction Agreements or any other party to the Construction Agreements
(collectively, the "Contractors") of its intent to enforce the rights of Lessee
under the Construction Agreements and may initiate or participate in any legal
proceedings respecting the enforcement of said rights. Lessee acknowledges that,
by accepting this assignment, Lessor does not assume any of Lessee's obligations
under the Construction Agreements.

        2.03. Contractor's Consent. In connection with the execution and
delivery to Lessor of this Agreement, Lessee shall obtain and deliver to Lessor
consents from each Contractor under each Construction Agreement in the form
attached hereto as Exhibit B (a "Contractor's Consent to Assignment"). Lessee
shall obtain and provide to Lessor a Contractor's Consent to Assignment for any
new Construction Agreements entered into by Lessee after the date hereof.

SECTION 3. REPRESENTATIONS, WARRANTIES AND COVENANTS OF LESSEE.

        3.01. Representations and Warranties. Lessee represents and warrants to
Lessor that (a) all Construction Agreements entered into by Lessee are in full
force and effect and are enforceable and no default, or event which would
constitute a default after notice or the passage of time, or both, exists with
respect to said Construction Agreements; (b) all copies of the Construction
Agreements delivered to Lessor are complete and correct; and (c) Lessee has not
assigned any of its rights under the Construction
Agreements.

        3.02. Covenants. Lessee agrees (a) to pay and perform all obligations of
Lessee under the Construction Agreements; (b) to enforce the payment and
performance of all obligations of any other Person under the Construction
Agreements; (c) not to revise, amend or modify the existing Construction
Agreements if such revision, amendment or modification (either alone or together
with all prior revisions, amendments or modifications to such Construction
Agreements) 




                                       2
   349

would result in Lessee's failure to comply with the provisions of
Section 3.01 of the Construction Agency Agreement nor to enter into any future
Construction Agreements without Lessor's prior written approval which shall not
be unreasonably withheld, except as otherwise may be permitted by the Operative
Documents; and (d) not to further assign, for security or any other purposes,
its rights under the Construction Agreements without Lessor's prior written
approval.

SECTION 4. MISCELLANEOUS.

        4.01. Notices. Except as otherwise specified herein, all notices,
requests, demands, consents, instructions or other communications to or upon
Lessee or Lessor under this Agreement shall be given as provided in Subparagraph
2.02(c) and Paragraph 7.01 of the Participation Agreement. 

        4.02. Waivers; Amendments. Any term, covenant, agreement or condition of
this Agreement may be amended or waived only as provided in the Participation
Agreement. No failure or delay by any Lessor Party in exercising any right
hereunder shall operate as a waiver thereof or of any other right nor shall any
single or partial exercise of any such right preclude any other further exercise
thereof or of any other right. Unless otherwise specified in any such waiver or
consent, a waiver or consent given hereunder shall be effective only in the
specific instance and for the specific purpose for which given.

        4.03. Successors and Assigns. This Agreement shall be binding upon and
inure to the benefit of the Lessor Parties and Lessee and their permitted
successors and assigns; provided, however, that the Lessor Parties and Lessee
shall not sell, assign or delegate their respective rights and obligations
hereunder except as provided in the Participation Agreement.


        4.04. No Third Party Rights. Nothing expressed in or to be implied from
this Agreement is intended to give, or shall be construed to give, any Person,
other than the Lessor Parties and Lessee and their permitted successors and
assigns, any benefit or legal or equitable right, remedy or claim under or by
virtue of this Agreement or under or by virtue of any provision herein.

        4.05. Partial Invalidity. If at any time any provision of this Agreement
is or becomes illegal, invalid or unenforceable in any respect under the law or
any jurisdiction, neither the legality, validity or enforceability of the
remaining provisions of this Agreement nor the legality, validity or
enforceability of such provision under the law of any other jurisdiction shall
in any way be affected or impaired thereby. 

        4.06. Governing Law. This Agreement shall be governed by and construed
in accordance with the laws of the State of California without reference to
conflicts of law rules. 

                          [The signature page follows.]



                                       3
   350

        IN WITNESS WHEREOF, Lessee has caused this Agreement to be executed as
of the day and year first above written.

LESSEE:                                 KLA-TENCOR CORPORATION


                                        By: __________________________________
                                            Name: ____________________________
                                            Title: ___________________________




                                       4
   351
                                    EXHIBIT A
                             CONSTRUCTION AGREEMENTS

                                      NONE




                                      A-1

   352



                                    EXHIBIT B
                       CONTRACTOR'S CONSENT TO ASSIGNMENT

        1. Reference is made to (a) the property located at [___________] (the
"Property") and (b) the agreement[s] described in Attachment 1 hereto between
KLA-Tencor Corporation ("Lessee") and the undersigned ("Contractor"). 

        2. Lessee has notified Contractor that, pursuant to an Assignment of
Construction Agreements dated as of November 12, 1997 between Lessee and Lease
Plan U.S.A., Inc. ("Lessor") (the "Assignment"), Lessee has assigned to Lessor
the agreement[s] described in Attachment 1 hereto and all future agreements and
contracts between Lessee and Contractor relating to the construction,
maintenance or repair of any improvements to the Property (collectively, the
"Construction Agreements"). 

        3. Contractor hereby consents to the Assignment and agrees as follows
for the benefit of Lessor:

               (a) Except with the prior written approval of Lessor, Contractor
        shall not perform any construction work pursuant to any change in the
        plans and specifications as set forth or attached to the Construction
        Agreements where such change would affect the structural integrity,
        quality of building material or equipment or overall efficiency of
        operating systems or utility systems of the improvements. The liens of
        Lessor's security interests shall have priority over any claim of lien
        of Contractor arising out of or in any way connected with any
        construction work performed by Contractor on the Property.

               (b) If requested by Lessor in the exercise of Lessor's rights
        under the Assignment, Contractor shall continue to perform its
        obligations under the Construction Agreements in accordance with the
        terms thereof. Contractor acknowledges that Lessor may have no means of
        discovering when or if Contractor claims a default under the
        Construction Agreements and agrees that it will give Lessor prior
        written notice of any default claimed by Contractor under the
        Construction Agreements. Said notice shall set forth a description of
        the default and a request to Lessor to cure the same within thirty (30)
        days. Said notice shall be deemed served upon delivery or, if mailed,
        upon the first to occur of receipt or the expiration of seventy-two (72)
        hours after deposit in United States Postal Service certified mail,
        postage prepaid and addressed to the address of Lessor appearing below.
        No termination of the Construction Agreements by Contractor shall be
        binding upon Lessor unless Lessor has received such notice and has
        failed to cure the described default within said thirty (30) days.
        Contractor further acknowledges that, unless and until Lessor elects to
        exercise its rights under the Assignment and requests Contractor's
        performance under the Construction Agreements in writing, Lessor neither
        undertakes nor assumes any obligations or liability under the
        Construction Agreements.

        (c) Contractor shall hold in trust all money disbursed to or otherwise
received by Contractor from or on account of Lessee in connection with the
construction of the improvements and shall use such money solely for the payment
of costs incurred in the 



                                      B-1
   353

construction of the improvements, including Contractor's fees, and for no other
purpose, until all bills, claims and demands for such costs have been paid in
full.

        IN WITNESS WHEREOF, Contractor has executed this Consent on this
___________ day of __________, ____.


                                     [                                    ]
                                      ------------------------------------

                                     By:
                                        -----------------------------------
                                         Name: 
                                               ----------------------------
                                         Title: 
                                               ----------------------------


                                     Contractor's Address:

                                     [                                    ]
                                      ------------------------------------
                                     [                                    ]
                                      ------------------------------------
                                     [                                    ]
                                      ------------------------------------
                                     [                                    ]
                                      ------------------------------------

                                     Lessor's Address:
                                     ----------------

                                     Lease Plan U.S.A., Inc.
                                     c/o ABN AMRO Bank N.V.
                                     135 So. LaSalle Street
                                     Suite 711
                                     Chicago, IL  60603
                                     Attn:  David M. Shipley






                                      B-2
   354

                                                                 EXECUTION COPY

================================================================================









                      ASSIGNMENT OF CONSTRUCTION AGREEMENTS


                                       BY



                             KLA-TENCOR CORPORATION



                                   IN FAVOR OF



                             LEASE PLAN U.S.A., INC.





                                NOVEMBER 12, 1997









================================================================================
   355

                            LESSOR SECURITY AGREEMENT

        THIS LESSOR SECURITY AGREEMENT (this "Agreement" herein), dated as of
November 12, 1997, is executed by:

               (1)    LEASE PLAN U.S.A., INC., a Georgia corporation ("Lessor"),

                                   in favor of

               (2) ABN AMRO BANK N.V., as agent for the Participants under the
        Participation Agreement referred to in Recital B below (in such
        capacity, "Agent").

                                    RECITALS

        A. KLA-Tencor Corporation, a Delaware corporation ("Lessee"), has
requested Lessor and the financial institutions which are "Participants" under
the Participation Agreement referred to in Recital B below (such financial
institutions to be referred to collectively as the "Participants") to provide to
Lessee a certain lease facility. Pursuant to such facility:

               (1) Lessor would (a) acquire certain property designated by
        Lessee (either through purchase or lease), (b) lease to Lessee such
        property and certain other property currently held by Lessor, (c)
        appoint Lessee as Lessor's agent to make certain improvements to a
        portion of such property, (d) make advances to finance such improvements
        and to pay certain related expenses, and (e) grant to Lessee the right
        to purchase such property; and

               (2) The Participants would participate in such lease facility by
        (a) funding the purchase prices and other advances to be made by Lessor
        and (b) acquiring participation interests in the rental and certain
        other payments to be made by Lessee.

        B. Pursuant to a Participation Agreement dated of even date herewith
(the "Participation Agreement") among Lessee, Lessor, the Participants and
Agent, Lessor and the Participants have agreed to provide such lease facility
upon the terms and subject to the conditions set forth therein, including,
without limitation, the execution and delivery of this Agreement.

                                    AGREEMENT

        NOW, THEREFORE, in consideration of the above Recitals and the mutual
covenants herein contained, the parties hereto hereby agree as follows:

SECTION 1.        INTERPRETATION.

        1.01. Definitions. Unless otherwise indicated in this Agreement or any
other Operative Document, each term set forth in Schedule 1.01 to the
Participation Agreement, when used in this Agreement or any other Operative
Document, shall have the respective meaning given to that term in such Schedule
1.01 or in the provision of this Agreement or other document, 



   356

instrument or agreement referenced in such Schedule 1.01. All terms defined in
the UCC shall have the respective meanings given to those terms in the UCC.

        1.02. Rules of Construction. Unless otherwise indicated in this
Agreement or any other Operative Document, the rules of construction set forth
in Schedule 1.02 to the Participation Agreement shall apply to this Agreement
and the other Operative Documents.

SECTION 2.        GRANT OF SECURITY INTEREST.

        2.01. Grant. As security for the Lessor Obligations, Lessor hereby
irrevocably and unconditionally pledges and assigns to Agent, for the benefit of
the Participants and Agent, and grants to Agent, for the benefit of the
Participants and Agent, a security interest in all estate, right, title and
interest of Lessor, whether now owned or hereafter acquired, in and to the
following property (such estate, right, title and interest in such property
herein, collectively and severally, the "Lessor Collateral"):

               (a) Operative Documents. The Participation Agreement, the
        Construction Agency Agreement, the Purchase Agreement, the Lessee
        Security Documents and all other Operative Documents (other than the
        Lease Agreement); all exhibits, schedules and other attachments thereto;
        and all documents, instruments or agreements issued or executed in
        replacement thereof; each as amended, modified and supplemented from
        time to time and in effect at any given time;

               (b) Collateral.  All Collateral for the Lessee Obligations 
        under the Operative Documents; and

               (c) Proceeds. All proceeds of the foregoing (including, without
        limitation, whatever is receivable or received when Lessor Collateral or
        proceeds is sold, collected, exchanged, returned, substituted or
        otherwise disposed of, whether such disposition is voluntary or
        involuntary, including rights to payment and return premiums and
        insurance proceeds under insurance with respect to any Lessor
        Collateral, and all rights to payment with respect to any cause of
        action affecting or relating to the Lessor Collateral).

SECTION 3.        REPRESENTATIONS, WARRANTIES AND COVENANTS OF LESSOR.

        3.01. Representations and Warranties. Lessor represents and warrants to
Agent and the Participants as follows:

               (a) Lessor is the legal and beneficial owner of the Lessor
        Collateral (or, in the case of after-acquired Lessor Collateral, at the
        time Lessor acquires rights in the Lessor Collateral, will be the legal
        and beneficial owner thereof).

               (b) Lessor has not transferred to any other Person any of its
        right, title or interest in the Lessor Collateral, whether by way of
        Lien or otherwise.

               (c) Lessor's chief executive office is located at 180 Interstate
        Parkway North, Atlanta, Georgia 30339.





                                       2
   357

        3.02.  Covenants.  Lessor hereby covenants to Agent and the 
Participants as follows:

               (a) Lessor shall promptly procure, execute and deliver to Agent
        all documents, instruments and agreements and perform all acts which are
        necessary or desirable, or which Agent may request, to establish,
        maintain, preserve, protect and perfect the Lessor Collateral, the Lien
        granted to Agent therein and the first priority of such Lien or to
        enable Agent to exercise and enforce its rights and remedies hereunder
        with respect to any Lessor Collateral.

               (b) Lessor shall not sell, transfer or assign any of its right,
        title or interest in the Lessor Collateral to any Person (other than
        Agent), whether by way of Lien or otherwise.

               (c) Without prompt written notice to Agent, Lessor shall not
        change Lessor's name or chief executive office.

SECTION 4.        RIGHTS AND REMEDIES OF AGENT.

        4.01. Authorized Action by Agent. Lessor hereby irrevocably appoints
Agent as its attorney-in-fact and agrees that Agent may perform (but Agent shall
not be obligated to and shall incur no liability to Lessor or any third party
for failure so to do) any act which Lessor is obligated by this Agreement to
perform, and to exercise such rights and powers as Lessor might exercise with
respect to the Lessor Collateral, including, without limitation, the right to
(a) collect by legal proceedings or otherwise and endorse, receive and receipt
for all dividends, interest, payments, proceeds and other sums and property now
or hereafter payable on or on account of the Lessor Collateral; (b) enter into
any extension, reorganization, deposit, merger, consolidation or other agreement
pertaining to, or deposit, surrender, accept, hold or apply other property in
exchange for the Lessor Collateral; (c) insure, process, preserve and enforce
the Lessor Collateral; (d) make any compromise or settlement, and take any
action it deems advisable, with respect to the Lessor Collateral; (e) pay any
Indebtedness of Lessor relating to the Lessor Collateral; and (f) execute UCC
financing statements. Lessor agrees that such care as Agent gives to the
safekeeping of its own property of like kind shall constitute reasonable care of
the Lessor Collateral when in Agent's possession; provided, however, that Agent
shall not be required to make any presentment, demand or protest, or give any
notice and need not take any action to preserve any rights against any prior
party or any other Person in connection with the Lessor Obligations or with
respect to the Lessor Collateral.

        4.02. Other Rights and Remedies Upon Default. In addition to all other
rights and remedies granted to Agent by this Agreement and the other Operative
Documents, the UCC and other applicable Governmental Rules, Agent may, if Lessor
fails to perform any of the Lessor Obligations, exercise any one or more of the
following rights and remedies: (a) collect, receive, appropriate or realize upon
the Lessor Collateral or otherwise foreclose or enforce Agent's security
interests in any or all Lessor Collateral in any manner permitted by applicable
Governmental Rules or in this Security Agreement; (b) notify Lessee to make any
or all payments to be made by Lessee under the Operative Documents to Agent; (c)
sell or otherwise dispose of any or all Lessor Collateral at one or more public
or private sales, whether or not such Lessor Collateral is present at the place
of sale, for cash or credit or future delivery, on such 




                                       3
   358

terms and in such manner as Agent may determine; (d) require Lessor to assemble
the Lessor Collateral and make it available to Agent at a place to be designated
by Agent; and (e) prior to the disposition of the Lessor Collateral, store,
process, repair or recondition any Lessor Collateral consisting of goods,
perform any obligations and enforce any rights of Lessor under any Operative
Documents or otherwise prepare and preserve Lessor Collateral for disposition in
any manner and to the extent Agent deems appropriate. In any case where notice
of any sale or disposition of any Lessor Collateral is required, Lessor hereby
agrees that thirty (30) days notice of such sale or disposition is reasonable.

SECTION 5.        MISCELLANEOUS.

        5.01. Notices. Except as otherwise specified herein, all notices,
requests, demands, consents, instructions or other communications to or upon
Lessor or Agent under this Agreement shall be given as provided in Paragraph
7.01 of the Participation Agreement.

        5.02. Waivers; Amendments. Any term, covenant, agreement or condition of
this Agreement may be amended or waived only as provided in the Participation
Agreement. No failure or delay by Agent in exercising any right hereunder shall
operate as a waiver thereof or of any other right nor shall any single or
partial exercise of any such right preclude any other further exercise thereof
or of any other right. Unless otherwise specified in any such waiver or consent,
a waiver or consent given hereunder shall be effective only in the specific
instance and for the specific purpose for which given.

        5.03. Successors and Assigns. This Agreement shall be binding upon and
inure to the benefit of the Lessor Parties and their permitted successors and
assigns; provided, however, that the Lessor Parties shall not sell, assign or
delegate their respective rights and obligations hereunder except as provided in
the Participation Agreement.

        5.04. No Third Party Rights. Nothing expressed in or to be implied from
this Agreement is intended to give, or shall be construed to give, any Person,
other than the Lessor Parties and their permitted successors and assigns, any
benefit or legal or equitable right, remedy or claim under or by virtue of this
Agreement or under or by virtue of any provision herein.

        5.05. Partial Invalidity. If at any time any provision of this Agreement
is or becomes illegal, invalid or unenforceable in any respect under the law or
any jurisdiction, neither the legality, validity or enforceability of the
remaining provisions of this Agreement nor the legality, validity or
enforceability of such provision under the law of any other jurisdiction shall
in any way be affected or impaired thereby.

        5.06. Governing Law. This Agreement shall be governed by and construed
in accordance with the laws of the State of California without reference to
conflicts of law rules.

        5.07. Counterparts. This Agreement may be executed in any number of
identical counterparts, any set of which signed by all the parties hereto shall
be deemed to constitute a complete, executed original for all purposes.

                          [The signature page follows.]




                                       4
   359



        IN WITNESS WHEREOF, Lessor has caused this Agreement to be executed as
of the day and year first above written.

LESSOR:                                   LEASE PLAN U.S.A., INC.



                                          By: ___________________________
                                          Name: _________________________
                                          Title: ________________________






                                       5
   360

                                                                  EXECUTION COPY


===============================================================================




                            LESSOR SECURITY AGREEMENT

                                       BY

                             LEASE PLAN U.S.A., INC.

                                   IN FAVOR OF

                               ABN AMRO BANK N.V.,

                                    AS AGENT

                                NOVEMBER 12, 1997




===============================================================================
   361
                                      PURCHASE AGREEMENT



        THIS PURCHASE AGREEMENT (this "Agreement" herein), dated as of November
12, 1997, is entered into by and between:

        (1)    KLA-TENCOR CORPORATION, a Delaware corporation ("Lessee"); and

        (2) LEASE PLAN U.S.A., INC., a Georgia corporation ("Lessor").



                                    RECITALS

        A. Lessee has requested Lessor and the financial institutions which are
"Participants" under the Participation Agreement referred to in Recital B below
(such financial institutions to be referred to collectively as the
"Participants") to provide to Lessee a certain lease facility. Pursuant to such
facility:

                (1) Lessor would (a) acquire certain property designated by
        Lessee (either through purchase or lease), (b) lease to Lessee such
        property and certain other property currently held by Lessor, (c)
        appoint Lessee as Lessor's agent to make certain improvements to a
        portion of such property, (d) make advances to finance such improvements
        and to pay certain related expenses, and (e) grant to Lessee the right
        to purchase such property; and

                (2) The Participants would participate in such lease facility by
        (a) funding the purchase prices and other advances to be made by Lessor
        and (b) acquiring participation interests in the rental and certain
        other payments to be made by Lessee.

        B. Pursuant to a Participation Agreement dated of even date herewith
(the "Participation Agreement") among Lessee, Lessor, the Participants and ABN
AMRO Bank N.V., as agent for the Participants (in such capacity, "Agent"),
Lessor and the Participants have agreed to provide such lease facility upon the
terms and subject to the conditions set forth therein, including without
limitation the execution and delivery of this Agreement setting forth the terms
for the purchase of the Property by Lessee  from Lessor.



                                    AGREEMENT

        NOW, THEREFORE, in consideration of the above Recitals and the mutual
covenants herein contained, the parties hereto hereby agree as follows:




   362


SECTION 1. INTERPRETATION.

        1.01. Definitions. Unless otherwise indicated in this Agreement or any
other Operative Document, each term set forth in Schedule 1.01 to the
Participation Agreement, when used in this Agreement or any other Operative
Document, shall have the respective meaning given to that term in such Schedule
1.01 or in the provision of this Agreement or other document, instrument or
agreement referenced in such Schedule 1.01.

        1.02. Rules of Construction. Unless otherwise indicated in this
Agreement or any other Operative Document, the rules of construction set forth
in Schedule 1.02 to the Participation Agreement shall apply to this Agreement
and the other Operative Documents.



SECTION 2. OPTIONAL PURCHASE BY LESSEE DURING THE TERM.

        2.01. Term Purchase Option. Subject to the terms and conditions of this
Agreement and the other Operative Documents (including those set forth below in
this Paragraph 2.01), Lessee may, at its option on any Business Day prior to the
Scheduled Expiration Date of the Lease Agreement, terminate the Lease Agreement
and purchase all of the Property (the "Term Purchase Option").

                (a) Notice of Term Purchase Option Exercise. Lessee shall notify
        Lessor of Lessee's exercise of the Term Purchase Option by delivering to
        Lessor an irrevocable written notice in the form of Exhibit A(1),
        appropriately completed (the "Notice of Term Purchase Option Exercise"),
        which states that Lessee is exercising its right to terminate the Lease
        Agreement prior to the Scheduled Expiration Date thereof pursuant to
        Paragraph 4.01 of the Lease Agreement and purchase all of the Property
        pursuant to this Paragraph 2.01 and specifies the Business Day on which
        such termination and purchase are to occur (which date, after the
        delivery of such notice, shall be the Expiration Date). Lessee shall
        give the Notice of Term Purchase Option Exercise to Lessor at least one
        (1) month prior to the Business Day on which such termination and
        purchase are to occur. The Notice of Term Purchase Option Exercise shall
        be delivered as required by Subparagraph 2.02(c) and Paragraph 7.01 of
        the Participation Agreement; provided, however, that Lessee shall
        promptly deliver the original of any Notice of Term Purchase Option
        Exercise initially delivered by facsimile.

               (b) Term Purchase Option Purchase Price. Lessee shall pay to
        Lessor on the Expiration Date, as the purchase price for the Property,
        an amount equal to the Outstanding Lease Amount on such date.

               (c) Effect of Certain Events. Lessee may exercise the Term
        Purchase Option as provided in this Paragraph 2.01, notwithstanding (i)
        the prior election by Lessee to exercise the Partial Purchase Option
        pursuant to Paragraph 2.02, the Marketing Option pursuant to Paragraph
        3.01 and Paragraph 3.02 or the Expiration Date Purchase Option pursuant
        to Paragraph 3.01 and Paragraph 3.03, provided that Lessor completes the
        purchase of the Property pursuant to the Term Purchase Option and this
        Agreement prior to the Scheduled Expiration Date and Lessor has not
        previously entered into an 



                                       2
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        agreement with a Designated Purchaser or an Assignee Purchaser to sell
        the Property or (ii) the occurrence of any Event of Default or the
        exercise by the Lessor Parties of any of their rights or remedies under
        the Operative Documents following the occurrence of such Event of
        Default, provided that such exercise by Lessee of the Term Purchase
        Option after the occurrence of any Event of Default shall not require
        the Lessor Parties to cease exercising such rights and remedies unless
        and until Lessee completes the purchase of the Property pursuant to the
        Term Purchase Option and this Agreement.

        2.02. Partial Purchase Option. Subject to the terms and conditions of
this Agreement and the other Operative Documents (including those set forth
below in this Paragraph 2.02), Lessee may, at its option on any Business Day
prior to the Scheduled Expiration Date of the Lease Agreement, without
terminating the Lease Agreement, purchase one or more Tracts (but less than all)
of the Property (the "Partial Purchase Option").

               (a) Notice of Partial Purchase Option Exercise. Lessee shall
        notify Lessor of Lessee's exercise of the Partial Purchase Option by
        delivering to Lessor an irrevocable written notice in the form of
        Exhibit A(2), appropriately completed (the "Notice of Partial Purchase
        Option Exercise"), which states that Lessee is exercising its right to
        purchase one or more (but less than all) Tracts of the Property prior to
        the Scheduled Expiration Date pursuant to this Paragraph 2.02 and
        specifies (i) the Tract(s) so to be purchased and (ii) the Business Day
        on which such purchase is to occur (a "Partial Purchase Date"). Lessee
        shall give each Notice of Partial Purchase Option Exercise to Lessor at
        least one (1) month prior to the Partial Purchase Date on which a
        purchase is to occur. Each Notice of Partial Purchase Option Exercise
        shall be delivered as required by Subparagraph 2.02(c) and Paragraph
        7.01 of the Participation Agreement; provided, however, that Lessee
        shall promptly deliver the original of any Notice of Partial Purchase
        Option Exercise initially delivered by facsimile.

                (b) Partial Purchase Option Purchase Price. Lessee shall pay to
        Lessor on each Partial Purchase Date, as the purchase price for each
        Tract of Property to be purchased on such date, an amount equal to the
        portion of the Outstanding Lease Amount on such date attributable to
        such Tract of Property.

               (c) Conditions to Exercise of Partial Purchase Option. The
        purchase by Lessee on any Partial Purchase Date of any Tract of Property
        pursuant to this Paragraph 2.02 is subject to receipt by Lessor, on or
        prior to such Partial Purchase Date, of new Expiration Date Appraisals
        for all Tracts of Property that are to remain subject to the Lease
        Agreement after such Partial Purchase Date, which appraisals (i) each
        shall be dated a recent date prior to such Partial Purchase Date and
        (ii) together shall assess the aggregate Fair Market Value of all such
        remaining Tracts of Property at not less than the Outstanding Lease
        Amount that will remain after application of all amounts to be applied
        thereto on such Partial Purchase Date.



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SECTION 3. OBLIGATIONS OF LESSEE ON THE EXPIRATION DATE.

        3.01. Alternative. Unless Lessee has exercised the Term Purchase Option,
on the Expiration Date of the Lease Agreement, Lessee shall either:

                (a) Marketing Option. Cause another Person to complete the
        purchase of the Property pursuant to Paragraph 3.02 (the "Marketing
        Option"); or

                (b) Expiration Date Purchase Option. Purchase the Property
        itself pursuant to Paragraph 3.03 (the "Expiration Date Purchase
        Option").

Lessee shall elect either the Marketing Option or the Expiration Date Purchase
Option by delivering to Lessor, not more than nine (9) months nor less than six
(6) months prior to the Scheduled Expiration Date for the Lease Agreement,
either (i) a written notice in the form of Exhibit B, appropriately completed
(the "Notice of Marketing Option Exercise"), or (ii) a written notice in the
form of Exhibit C, appropriately completed (the "Notice of Expiration Date
Purchase Option Exercise"); provided, however, that (A) Lessee shall be deemed
to have elected the Expiration Date Purchase Option if it fails to deliver
either notice as required by this sentence; (B) Lessee's election of the
Expiration Date Purchase Option (whether expressly by a notice so delivered or
implicitly by the failure to deliver any notice) shall be irrevocable; and (C)
Lessee may not elect the Marketing Option if (1) the Expiration Date has been
accelerated to an earlier Termination Date following a Marketing Option Event of
Default under the Lease Agreement or (2) the conditions set forth in Paragraph
3.04 of the Participation Agreement are not satisfied on the date Lessee
delivers its election notice or on the Expiration Date of the Lease Agreement
(unless, in each case, the only event or condition causing such conditions not
to be so satisfied is the occurrence of a Non-Marketing Option Event of Default
under the Lease Agreement). The Notice of Marketing Option Exercise or the
Notice of Expiration Date Purchase Option Exercise shall be delivered as
required by Subparagraph 2.02(c) and Paragraph 7.01 of the Participation
Agreement; provided, however, that Lessee shall promptly deliver to Lessor the
original of any such notice initially delivered by facsimile.

        3.02. Marketing Option.

               (a) General. If Lessee elects to exercise the Marketing Option by
        delivering to Lessor a Notice of Marketing Option Exercise pursuant to
        Paragraph 3.01, Lessee shall (i) locate a purchaser which satisfies the
        requirements set forth in this Paragraph 3.02, (ii) arrange for such
        purchaser to purchase the Property on the Expiration Date for a purchase
        price which is not less than the lesser of (A) the sum of the total
        Tranche B Proportionate Share and the total Tranche C Proportionate
        Share of the Outstanding Lease Amount and (B) the Fair Market Value of
        the Property and (iii) otherwise comply, or cause compliance with, the
        requirements of this Paragraph 3.02 and the other applicable provisions
        of this Agreement.

                (b) Lessee's Marketing Obligations.

                        (i) Initial Marketing Period. During the period
                beginning on the date Lessee delivers the Notice of Marketing
                Option Exercise and ending on the date which is four (4) months
                prior to the Expiration Date of the Lease Agreement (the





                                       4
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                "Initial Marketing Period"), Lessee shall use reasonable efforts
                to solicit Conforming Bids from potential purchasers of the
                Property. On or prior to the last day of the Initial Marketing
                Period, Lessee shall deliver to Lessor any Conforming Bid
                selected by Lessee (the "Initial Bid"). If the purchase price
                specified in the Initial Bid is equal to or greater than the sum
                of the total Tranche B Proportionate Share and the total Tranche
                C Proportionate Share of the Outstanding Lease Amount, Lessor
                shall accept such bid and Lessee shall have no further
                obligations to solicit additional bids.

                        (ii) Secondary Marketing Period. If Lessee does not
                submit an Initial Bid or if the purchase price specified in the
                Initial Bid is less than the sum of the total Tranche B
                Proportionate Share and the total Tranche C Proportionate Share
                of the Outstanding Lease Amount, Lessor may reject such bid and
                Lessee shall, during the period which begins on the day
                following the Initial Marketing Period and ends on the date two
                (2) months prior to the Expiration Date of the Lease Agreement
                (the "Secondary Marketing Period"):

                                (A) Use its best efforts to solicit additional
                        Conforming Bids, including the engagement of experienced
                        and knowledgeable brokers;

                                (B) Furnish to each Lessor Party copies of all
                        bids and otherwise provide each Lessor Party with such
                        information relating to the marketing of the Property as
                        such Person may reasonably request in writing;

                                (C) Agree to provide to all potential purchasers
                        all customary seller's indemnities (including
                        environmental indemnities), representations and
                        warranties regarding the Property (including the title
                        to, except for Lessor Liens, and condition of the
                        Property);

                                (D) Furnish to each Lessor Party copies of
                        environmental reports, architect's certificates,
                        licenses, permits and other evidence reasonably
                        requested by such Person to establish that no Default
                        has occurred and is continuing under the Lease
                        Agreement;

                                (E) Permit any Lessor Party or potential
                        purchaser to inspect the Property and the maintenance
                        records for the Property upon reasonable prior written
                        notice and during normal business hours and provide to
                        each such Person all information regarding the Property
                        reasonably requested by such Person in writing;

                                (F) Take all other commercially reasonable steps
                        to secure the best price for the Property; and

                                (G) Submit to Lessor on or prior to the last day
                        of the Secondary Marketing Period any Conforming Bid
                        selected by Lessee with a purchase price which is equal
                        to or greater than the sum of the total Tranche B
                        Proportionate Share and the total Tranche C
                        Proportionate


                                       5
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                        Share of the Outstanding Lease Amount or, if no such
                        Conforming Bid was received by Lessee, the highest
                        Conforming Bid received by Lessee during the Secondary
                        Marketing Period.

                During the Secondary Marketing Period, any Lessor Party shall
        have the right to submit one or more bids or solicit bids from other
        Persons.

                (c) Conforming Bids. Each bid must meet each of the following
        requirements (each such bid to be referred to herein as a "Conforming
        Bid"):

                        (i) The bid may be submitted by any Person other than
                (A) a Person which is an Affiliate of Lessee or (B) a Person
                which has an agreement (whether express or implied) with Lessee
                or any of its Affiliates to sell, lease or otherwise make
                available to Lessee or any of its Affiliates any portion of the
                Property;

                        (ii) The bidder must agree in writing to purchase the
                Property on the Expiration Date of the Lease Agreement for a
                purchase price to be paid in cash which is not less than the
                lesser of (A) the sum of the total Tranche B Proportionate Share
                and the total Tranche C Proportionate Share of the Outstanding
                Lease Amount on such date and (B) the Fair Market Value of the
                Property on such date;

                        (iii) The bidder must agree to purchase the Property "as
                is" without any representations, warranties or indemnities,
                except for (A) any representations, warranties or indemnities
                provided by Lessor and Lessee pursuant to Subparagraph 4.01(b)
                and (B) any representations, warranties or indemnities provided
                by Lessee pursuant to clause (ii)(C) of Subparagraph 3.02(b);
                and

                        (iv) The bidder must agree to be bound by the other
                terms and conditions of this Agreement applicable to bidders.

                (d) Lessor's Obligation to Accept Bids. If, at any time on or
        prior to the last day of the Secondary Marketing Period, Lessee submits
        to Lessor a Conforming Bid under this Paragraph 3.02 with a purchase
        price which is equal to or greater than the sum of the total Tranche B
        Proportionate Share and the total Tranche C Proportionate Share of the
        Outstanding Lease Amount, Lessor shall accept such bid. If Lessee
        submits to Lessor a Conforming Bid under this Paragraph 3.02 with a
        purchase price which is less than the sum of the total Tranche B
        Proportionate Share and the total Tranche C Proportionate Share of the
        Outstanding Lease Amount, Lessor shall not accept such bid unless so
        directed by Required Participants. If Lessee fails to submit a bid to
        Lessor on or prior to the last day of the Secondary Marketing Period
        which Lessor is so required to accept, Lessor shall retain the Property
        after the Expiration Date of the Lease Agreement; provided, however,
        that Lessee's payment obligations on such Expiration Date shall be
        limited to the amounts payable pursuant to clause (iii) of Subparagraph
        4.06(a) if (i) Lessor retains the Property after Lessee submits a
        Conforming Bid on or prior to the last day of the Secondary Marketing
        Period in accordance with clause (ii) of Subparagraph 3.02(b) and (ii)
        the Marketing Option has not terminated prior to such Expiration Date




                                       6
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        pursuant to Subparagraph 3.02(f). Lessor shall notify Lessee of Lessor's
        election to retain the Property by delivering to Lessee, at least ten
        (10) days prior to the Expiration Date of the Lease Agreement, a written
        notice of such election.

                (e) Purchase Price. If Lessor accepts any bid by any Person,
        such Person (the "Designated Purchaser") shall pay to Lessor on the
        Expiration Date of the Lease Agreement, as the purchase price for the
        Property, the amount set forth in such bid as the purchase price.

                (f) Termination of the Marketing Option. Lessee's right to
        exercise the Marketing Option shall immediately terminate and Lessee
        shall purchase the Property on the Expiration Date of the Lease
        Agreement pursuant to Paragraph 3.03 if (i) Lessee fails to comply with
        any of its obligations under this Paragraph 3.02; (ii) a Marketing
        Option Event of Default under the Lease Agreement occurs after Lessee
        delivers the Notice of Marketing Option Exercise; (iii) the conditions
        precedent set forth in Paragraph 3.04 of the Participation Agreement are
        not satisfied on the Expiration Date of the Lease Agreement (unless the
        only event or condition causing such conditions not to be so satisfied
        is the occurrence of a Non-Marketing Option Event of Default under the
        Lease Agreement); or (iv) the Designated Purchaser fails to consummate
        the purchase of the Property on the Expiration Date of the Lease
        Agreement in accordance with its accepted bid and this Agreement,
        without regard to the reason for such failure (except as otherwise
        provided in the following proviso); provided, however, that, if the
        Designated Purchaser fails to consummate the purchase of the Property on
        the Expiration Date solely due to Lessor's failure to remove Lessor
        Liens or deliver the required deed and bill of sale or other documents
        required to be delivered by Lessor hereunder, Lessee's right to exercise
        the Marketing Option shall not terminate, Lessee shall not be required
        to purchase the Property on the Expiration Date and Lessee's payment
        obligations on the Expiration Date shall be limited to the amounts set
        forth in clause (ii) of Subparagraph 4.06(a).

                (g) Residual Value Guaranty Amount and Indemnity Amount. Unless
        Lessee's right to exercise the Marketing Option has terminated and
        Lessee is required to purchase the Property on the Expiration Date of
        the Lease Agreement pursuant to Paragraph 3.03, Lessee shall pay to
        Lessor on such Expiration Date the following:

                        (i) An amount equal to the total Tranche A Proportionate
                Share of the Outstanding Lease Amount under on such date (the
                "Residual Value Guaranty Amount"); and

                        (ii) An amount equal to the decrease, if any, between
                the Commencement Date and the Expiration Date of the Lease
                Agreement in the Fair Market Value of the Property caused by (A)
                any representation or warranty of Lessee or any of its
                Affiliates regarding the Property set forth in any of the
                Operative Documents proving to be false or inaccurate when made,
                (B) the existence of, or the failure of Lessee to pay any
                Governmental Charge, Indebtedness or other obligation which
                might give rise to, any Liens in the Property (other than
                Permitted Property Liens), (C) the failure of Lessee to complete
                any New Improvements or any Modifications or (D) any other
                failure of



                                       7
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                Lessee to comply with any of its obligations regarding the
                Property set forth in any of the Operative Documents (the
                "Indemnity Amount");

        Provided, however, that (A) Lessee shall not be obligated to pay any
Residual Value Guaranty Amount or Indemnity Amount if the purchase price paid to
Lessor equals or exceeds the Outstanding Lease Amount on such date and (B) the
sum of any Residual Value Guaranty Amount and Indemnity Amount payable to Lessor
on the Expiration Date of the Lease Agreement shall not exceed the deficiency,
if any, between such Outstanding Lease Amount and such purchase price.

                (h) Determination of Fair Market Value and Indemnity Amount. If
        the purchase price specified in the Initial Bid is less than the sum of
        the total Tranche B Proportionate Share and the total Tranche C
        Proportionate Share of the Outstanding Lease Amount, Lessor may, on or
        prior to the last day of the Secondary Marketing Period (if Lessee has
        not previously delivered to Lessor a Conforming Bid with a purchase
        price equal to or greater than the sum of the total Tranche B
        Proportionate Share and the total Tranche C Proportionate Share of the
        Outstanding Lease Amount), deliver to Lessee a written notice of
        Lessor's determination of the current Fair Market Value of the Property
        and the Indemnity Amount. To determine such amounts, Lessor shall obtain
        Appraisals of the Property which set forth:

                        (i) A current Appraisal of the Fair Market Value of the
                Property in its then existing condition (the "Current
                Appraisal"); and

                        (ii) An Appraisal of the Fair Market Value of the
                Property which assumes that (A) all representations and
                warranties regarding the Property made by Lessee or any of its
                Affiliates in any of the Operative Documents were true and
                correct when made; (B) Lessee has maintained the Property in
                compliance with all applicable Governmental Rules, Insurance
                Requirements and the Operative Documents; (C) Lessee has
                completed all Modifications and any other New Improvements in a
                good and workmanlike manner and otherwise as required by the
                Operative Documents; (D) Lessee has repaired the Property as
                required by the Operative Documents following any Casualty; (E)
                Lessee has restored the Property as required by the Operative
                Documents following any Condemnation; (F) Lessee has paid all
                Governmental Charges, Indebtedness and other obligations which,
                if unpaid, might give rise to a Lien (other than a Lessor Lien)
                on the Property; (G) Lessee has removed all Liens on the
                Property except for Permitted Property Liens and Lessor Liens;
                and (H) Lessee has performed all of its other obligations as
                required by the Operative Documents (the "Assumed Appraisal").

        In the absence of manifest error, (A) the Current Appraisal shall
        constitute the current Fair Market Value of the Property and (B) the
        difference between the Current Appraisal and the Assumed Appraisal shall
        constitute the Indemnity Amount if the Current Appraisal is less than
        the Assumed Appraisal.



                                       8
   369

                (i) Lessee not an Agent. Lessee shall not be an agent for any of
        the Lessor Parties in arranging for a purchaser of the Property. No
        Lessor Party shall be bound by any acts of Lessee.

                (j) Excess Proceeds. If, on the Expiration Date of the Lease
        Agreement, after the application by Lessor of all amounts received by
        Lessor on such date to the Outstanding Lease Amount, all unpaid Rent
        accrued through or due and payable on or prior to such date and all
        other amounts, if any, due and payable by Lessee under the Operative
        Documents on or prior to such date, any excess amount remains, Lessor
        shall pay such excess amount to Lessee.

                (k) Creditworthiness of Designated Purchaser. Lessee assumes all
        responsibility for determining the creditworthiness of any potential
        purchaser on any bid submitted by Lessee to Lessor hereunder. If, after
        any purchase by a Designated Purchaser hereunder, the purchase price
        paid by such Designated Purchaser is recovered from any Lessor Party,
        Lessee shall reimburse such Lessor Party for such recovery unless such
        recovery is due solely to a material misrepresentation or covenant
        breach by such Lessor Party.

                (l) Exercise of Marketing Option After Non-Marketing Option
        Event of Default. If Lessor notifies Lessee pursuant to Subparagraph
        5.03(a) or Subparagraph 5.04(a) of the Lease Agreement that Lessor is
        terminating the Lease Agreement on a Termination Date which is prior to
        the Scheduled Expiration Date of the Lease Agreement and the only basis
        for such early termination is the occurrence of a Non-Marketing Option
        Event of Default, Lessee may, subject to Paragraph 3.01, elect to
        exercise the Marketing Option if, not later than ten (10) Business Days
        after it receives from Lessor such notice of early termination, it (i)
        delivers to Lessor a Notice of Marketing Option Exercise, (ii) delivers
        to Agent (A) a Cash Collateral Agreement in form and substance
        reasonably satisfactory to Lessor and Agent and (B) Cash Collateral in
        an amount not less than 105% of the total Tranche A Proportionate Share
        of the Outstanding Lease Amount, and (iii) delivers to Lessor an opinion
        in form and substance reasonably satisfactory to Lessor regarding the
        Cash Collateral Agreement and Lessor's security interest in such Cash
        Collateral and (iv) takes such other actions as may be necessary to
        grant to Agent first priority perfected security interests in such Cash
        Collateral in accordance with the Cash Collateral Agreement. Upon the
        delivery by Lessee to Lessor of a Notice of Marketing Option Exercise
        and satisfaction of the Cash Collateral requirements set forth in the
        preceding sentence of this Subparagraph 3.02(l), the Expiration Date of
        the Lease Agreement shall, if the conditions to the exercise of the
        Marketing Option set forth in Paragraph 3.01 are satisfied, be extended
        to the first Business Day that is six (6) months after the date of
        receipt by Lessor of such Notice of Marketing Option Exercise, provided,
        however, that in no event shall the Expiration Date of the Lease
        Agreement be extended beyond the Scheduled Expiration Date. Any exercise
        by Lessee of the Marketing Option pursuant to this Subparagraph 3.02(l)
        shall be subject to the terms and conditions otherwise set forth in this
        Agreement.

                (m) Lessor's Obligation to Sell. If Lessor retains the Property
        after the Expiration Date for any reason under the Operative Documents
        without a judicial or non-



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        judicial foreclosure sale or a deed-in-lieu of foreclosure from Lessee,
        Lessor thereafter shall use commercially reasonable efforts to sell the
        Property in a reasonable time to one or more unrelated third parties for
        the Fair Market Value of the Property; provided, however that Lessor
        shall have no obligation to sell the Property at a time, or in a manner,
        that would adversely affect the Lessor Parties' ability to be paid in
        full the Outstanding Lease Amount, all other amounts payable to the
        Lessor Parties under the Operative Documents (including reasonable costs
        of maintaining, managing and selling the Property) and carrying costs
        for the Outstanding Lease Amount and such other amounts accruing at the
        Base Rate. Following such sale, Lessor shall pay to Lessee any amounts
        received by Lessor in excess of the amounts referred to in the proviso
        to the preceding sentence.

3.03. Expiration Date Purchase Option.

               (a) General. If (i) Lessee elects to exercise the Expiration Date
        Purchase Option by delivering to Lessor a Notice of Expiration Date
        Purchase Option Exercise pursuant to Paragraph 3.01; (ii) Lessee elects
        to exercise the Marketing Option by delivering to Lessor a Notice of
        Marketing Option Exercise pursuant to Paragraph 3.01 but the Marketing
        Option terminates pursuant to Subparagraph 3.02(f); or (iii) Lessee
        fails to deliver to Lessor either notice as required by Paragraph 3.01;
        Lessee shall purchase the Property on the Expiration Date of the Lease
        Agreement and otherwise comply, or cause compliance with, the
        requirements of this Paragraph 3.03 and the other applicable provisions
        of this Agreement.

                (b) Purchase Price. Lessee shall pay to Lessor on the Expiration
        Date of the Lease Agreement, as the purchase price for the Property, an
        amount equal to the Outstanding Lease Amount under on such date.


SECTION 4. TERMS OF ALL PURCHASES.

        4.01. Representations and Warranties of Parties.

                (a) Representations and Warranties of Certain Purchasers. Each
        Designated Purchaser shall represent and warrant to Lessor on the
        Expiration Date of the Lease Agreement (or, in the case of a purchase of
        a portion of the Property pursuant to the Partial Purchase Option, on
        the applicable Partial Purchase Date) as follows:

                        (i) Such Person is a legal entity duly organized,
                validly existing and in good standing under the laws of its
                state of organization or an individual with legal capacity to
                purchase the Property (or, in the case of a purchase of a
                portion of the Property pursuant to the Partial Purchase Option,
                the portion to be purchased).

                      (ii) The execution, delivery and performance by such
               Person of each document, instrument and agreement executed, or to
               be executed, by such Person in connection with its purchase of
               the Property (or, in the case of a purchase of a 



                                       10
   371

                portion of the Property pursuant to the Partial Purchase Option,
                the portion to be purchased) (the "Purchase Documents") and the
                consummation of the transactions contemplated thereby (A) are
                within the power of such Person and (B) have been duly
                authorized by all necessary actions on the part of such Person.

                        (iii) Each Purchase Document executed, or to be
                executed, by such Person has been, or will be, duly executed and
                delivered by such Person and constitutes, or will constitute, a
                legal, valid and binding obligation of such Person, enforceable
                against such Person in accordance with its terms, except as
                limited by bankruptcy, insolvency or other laws of general
                application relating to or affecting the enforcement of
                creditors' rights generally and general principles of equity.

                      (iv) Such Person has not (A) made a general assignment for
               the benefit of creditors, (B) filed any voluntary petition in
               bankruptcy or suffered the filing of any involuntary petition by
               such Person's creditors, (C) suffered the appointment of a
               receiver to take possession of all, or substantially all, of such
               Person 's assets, (D) suffered the attachment or other judicial
               seizure of all, or substantially all, of such Person 's assets,
               (E) admitted in writing its inability to pay its debts as they
               come due, or (F) made an offer of settlement, extension or
               composition to its creditors generally.

                        (v) Such Person is not a "party in interest" within the
                meaning of Section 3(14) of the ERISA, with respect to any
                investor in or beneficiary of Lessor.

                (b) Representations and Warranties of Lessor and Lessee. Each of
        Lessor and Lessee shall represent and warrant to each purchaser of the
        Property, whether Lessee, an Assignee Purchaser or a Designated
        Purchaser (a "Purchaser"), on the Expiration Date of the Lease Agreement
        as follows:

                        (i) Such Person is a corporation duly organized, validly
                existing and in good standing under the laws of its state of
                incorporation.

                        (ii) The execution, delivery and performance by such
                Person of each Purchase Document executed, or to be executed, by
                such Person and the consummation of the transactions
                contemplated thereby (A) are within the power of such Person and
                (B) have been duly authorized by all necessary actions on the
                part of such Person.

                        (iii) Each Purchase Document executed, or to be
                executed, by such Person has been, or will be, duly executed and
                delivered by such Person and constitutes, or will constitute, a
                legal, valid and binding obligation of such Person, enforceable
                against such Person in accordance with its terms, except as
                limited by bankruptcy, insolvency or other laws of general
                application relating to or affecting the enforcement of
                creditors' rights generally and general principles of equity.

                        (iv) Such Person has not (A) made a general assignment
                for the benefit of creditors, (B) filed any voluntary petition
                in bankruptcy or suffered the filing of 



                                       11
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                any involuntary petition by such Person's creditors, (C)
                suffered the appointment of a receiver to take possession of
                all, or substantially all, of such Person's assets, (D) suffered
                the attachment or other judicial seizure of all, or
                substantially all, of such Person's assets, (E) admitted in
                writing its inability to pay its debts as they come due, or (F)
                made an offer of settlement, extension or composition to its
                creditors generally.

        In addition to the foregoing, (A) Lessee shall represent and warrant to
        the Designated Purchaser (or Lessor if Lessor is to retain the Property)
        on the Expiration Date of the Lease Agreement that no Liens are attached
        to the Property, except for Permitted Property Liens, and (B) Lessor
        shall represent and warrant to Purchaser on the Expiration Date of the
        Lease Agreement (or, in the case of a purchase of a portion of the
        Property pursuant to the Partial Purchase Option, on the applicable
        Partial Purchase Date) that no Lessor Liens are attached to the Property
        (or, in the case of a purchase of a portion of the Property pursuant to
        the Partial Purchase Option, the portion to be purchased). Except for
        the foregoing representations and warranties to be made by Lessor on the
        Expiration Date of the Lease Agreement (or, in the case of a purchase of
        a portion of the Property pursuant to the Partial Purchase Option, on
        the applicable Partial Purchase Date), no Lessor Party shall make any
        representation or warranty regarding the Property or the sale of the
        Property. Lessee shall make such additional representations and
        warranties as it may be required to make pursuant to clause (ii) of
        Subparagraph 3.02(b).

                (c) Survival of Representations and Warranties. The
        representations and warranties of Purchaser, Lessor and Lessee shall
        survive for a period of twelve (12) months after the Expiration Date of
        the Lease Agreement (or, in the case of a purchase of a portion of the
        Property pursuant to the Partial Purchase Option, after the applicable
        Partial Purchase Date). Any claim which any such party may have at any
        time against any other such party for a breach of any such
        representation or warranty, whether known or unknown, which is not
        asserted by written notice within such twelve (12) month period shall
        not be valid or effective, and the party shall have no liability with
        respect thereto.

        4.02. "As Is" Purchase. All purchases of the Property hereunder shall be
"as is, with all faults" and without any representations, warranties or
indemnities except for any representations, warranties or indemnities provided
by Lessee pursuant to clause (ii)(C) of Subparagraph 3.02(b) or by Lessor or
Lessee pursuant to Subparagraph 4.01(b). Each Purchaser shall specifically
acknowledge and agree that Lessor is selling and such Purchaser is purchasing
the Property on an "as is, with all faults" basis and that such Purchaser is not
relying on any representations or warranties of any kind whatsoever, express or
implied, from any Lessor Party, its agents, or brokers as to any matters
concerning the Property (except for any representations and warranties provided
by Lessor pursuant to Subparagraph 4.01(b)), including (a) the condition of the
Property (including any Improvements to the Property made prior to the
Commencement Date or during the Term of the Lease Agreement); (b) title to the
Property (including possession of the Property by any Person or the existence of
any Lien or any other right, title or interest in or to any of the Property in
favor of any Person); (c) the value, habitability, usability, design, operation
or fitness for use of the Property; (d) the availability or adequacy of
utilities and other services to the Property; (e) any latent, hidden or patent
defect in the Property; (f) the zoning or 



                                       12
   373

status of the Property or any other restrictions on the use of the Property; (g)
the economics of the Property; (h) any Casualty or Condemnation; or (i) the
compliance of the Property with any applicable Governmental Rule or Insurance
Requirement.

        4.03. Release. Without limiting the foregoing, each Purchaser shall, on
behalf of itself and its successors and assigns, waive its right to recover
from, and forever release and discharge, Lessor and the other Indemnitees from
any and all demands, claims, legal or administrative proceedings, losses,
liabilities, damages, penalties, fines, liens, judgments, costs or expenses
whatsoever (including attorneys' fees and costs), whether direct or indirect,
known or unknown, foreseen or unforeseen, that may arise on account of or in any
way be connected with the physical condition of the Property or any Governmental
Rule applicable thereto, including any Environment Law. Each Purchaser shall
expressly waive the benefits of Section 1542 of the California Civil Code, which
provides that, "a general release does not extend to claims which the creditor
does not know or expect to exist in his favor at the time of executing the
release, which if known to him must have materially affected the settlement with
the debtor."

        4.04. Permits, Approvals, Etc. Lessee shall obtain all permits, licenses
and approvals from and make all filings with Governmental Authorities and other
Persons, comply and cause compliance with all applicable Governmental Rules and
take all other actions required for the marketing, purchase and sale of the
Property.

        4.05 Costs. Lessee shall pay directly, without deduction from the
purchase price or any other amount payable to Lessor hereunder, all costs and
expenses of Lessee and Lessor associated with the marketing and sale of the
Property, including brokers' fees and commissions; title insurance premiums;
survey charges; utility, tax and other prorations; fees and expenses of
environmental consultants and attorneys; appraisal costs; escrow fees; recording
fees; documentary, transfer and other taxes; and all other fees, costs and
expenses which might otherwise be deducted from the purchase price or any other
amount payable to the Lessor Parties hereunder.

        4.06. Lessee's Expiration Date and Partial Purchase Date Payment
Obligations.

                (a) Expiration Date. On the Expiration Date of the Lease
        Agreement, Lessee shall pay to Lessor the following:


                        (i) Purchase by Lessee. If the Property is to be
                purchased by Lessee or an Assignee Purchaser on such date, (i)
                the purchase price payable by Lessee, (ii) all unpaid Rent
                accrued through or due and payable on or prior to such date and
                (iii) all other amounts, if any, due and payable by Lessee under
                the Operative Documents on or prior to such date;

                        (ii) Purchase by a Designated Purchaser. If the Property
                is to be purchased by a Designated Purchaser on such date, (i)
                the Residual Value Guaranty Amount (subject to the provisos set
                forth at the end of Subparagraph 3.02(g)), (ii) the Indemnity
                Amount (subject to the provisos set forth at the end of
                Subparagraph 3.02(g)), (iii) all unpaid Rent accrued through or
                due and payable



                                       13
   374

                on or prior to such date and (iv) all other amounts, if any, due
                and payable by Lessee under the Operative Documents on or prior
                to such date; or

                        (iii) Retention by Lessor. If the Property is to be
                retained by Lessor on such date pursuant to Subparagraph
                3.02(d), (i) the Residual Value Guaranty Amount, (ii) the
                Indemnity Amount, (iii) all unpaid Rent accrued through or due
                and payable on or prior to such date and (iv) all other amounts,
                if any, due and payable by Lessee under the Operative Documents
                on or prior to such date.

                (b) Partial Purchase Date. On any Partial Purchase Date, Lessee
        shall pay to Lessor (i) the purchase price for the Tracts of Property to
        be purchased on such date, (ii) all unpaid Rent attributable to such
        Tracts of Property accrued through or due and payable on or prior to
        such date and (iii) all other amounts attributable to such Tracts of
        Property , if any, due and payable by Lessee under the Operative
        Documents on or prior to such date.

        4.07. Lessor Liens. Lessor shall remove all Lessor Liens from the
Property before the Expiration Date of the Lease Agreement (or, in the case of a
purchase of a portion of the Property pursuant to the Partial Purchase Option,
from the portion to be purchased before the applicable Partial Purchase Date).

        4.08. Transfer Documents.

                (a) Expiration Date.

                        (i) Lessor. Subject to receipt by Lessor on the
                Expiration Date of the Lease Agreement of the full amount of the
                following, without any setoff, deduction or reduction of any
                kind:

                                (A) In the case of a transfer to Lessee or an
                        Assignee Purchaser, all amounts payable by Lessee
                        pursuant to clause (i) of Subparagraph 4.06(a); or

                                (B) In the case of a transfer to a Designated
                        Purchaser, (1) the purchase price payable by the
                        Designated Purchaser and (2) all amounts payable by
                        Lessee pursuant to clause (ii) of Subparagraph 4.06(a);

                Lessor shall transfer its interest in the Property to Purchaser
                on the Expiration Date of the Lease Agreement (unless Lessor is
                to retain the Property) by executing and delivering to Purchaser
                a Deed in substantially the form of Exhibit D-1, an
                Acknowledgment of Disclaimer of Representations and Warranties
                in substantially the form of Exhibit D-2, a Bill of Sale in
                substantially the form of Exhibit E and such other documents,
                instruments and agreements as such Person may reasonably
                request.

                        (ii) Lessee. On the Expiration Date of the Lease
                Agreement, unless Lessee is to purchase the Property, Lessee
                shall transfer its interest in the Property to the Designated
                Purchaser or the Assignee Purchaser (or Lessor if Lessor is to




                                       14
   375

                retain the Property pursuant to Paragraph 3.02(d)) by executing
                and delivering to such Person a Deed in substantially the form
                of Exhibit F, a Bill of Sale in substantially the form of
                Exhibit G and such other documents, instruments and agreements
                as such Person may reasonably request.

               (b) Partial Purchase Date. Subject to receipt by Lessor on any
        Partial Purchase Date of all amounts payable by Lessee pursuant to
        Subparagraph 4.06(b), without any setoff, deduction or reduction of any
        kind, Lessor shall transfer its interest in the Tracts of Property to be
        purchased on such date to Lessee by executing and delivering to Lessee a
        Deed in substantially the form of Exhibit D, a Bill of Sale in
        substantially the form of Exhibit E and such other documents,
        instruments and agreements as Lessee may reasonably request

        4.09. Casualty and Condemnation Proceeds. If, on the Expiration Date of
the Lease Agreement, any Casualty and Condemnation Proceeds are held by Lessor
in a Repair and Restoration Account or otherwise, Lessor shall (a) if Lessee is
to purchase the Property on the Expiration Date of the Lease Agreement and
Lessee shall so direct, apply such proceeds to the purchase price to be paid by
Lessee or (b) in all other cases, release such proceeds to Lessee; provided,
however, that Lessor shall not have any obligation so to apply or release such
proceeds unless Lessee and/or any Designated Purchaser has complied with all of
the terms and conditions of this Agreement.

        4.10. Payments. Purchaser and Lessee shall make all payments in lawful
money of the United States and in same day or immediately available funds not
later than 11:00 a.m. on the date due.

        4.11. Environmental Reports. Lessee shall obtain and deliver to Lessor,
not later than twenty (20) days prior to the Expiration Date of the Lease
Agreement (or, in the case of a purchase of a portion of the Property pursuant
to the Partial Purchase Option, prior to the applicable Partial Purchase Date),
environmental reports with respect to the Property (or, in the case of a
purchase of a portion of the Property pursuant to the Partial Purchase Option,
with respect to the applicable portion thereof) prepared by environmental
consultants acceptable to Lessor.

        4.12. Further Assurances. Lessee shall, and shall cause any Designated
Purchaser to, execute and deliver such documents, instruments and agreements and
take such other actions as Lessor may reasonably request to effect the purposes
of this Agreement and comply with the terms hereof. Similarly, Lessor shall
execute and deliver such documents, instruments and agreements and take such
other actions as Lessee or a Designated Purchaser may reasonably request to
effect the purposes of this Agreement and comply with the terms hereof.



SECTION 5. MISCELLANEOUS.

        5.01. Notices. Except as otherwise specified herein, all notices,
requests, demands, consents, instructions or other communications to or upon
Lessee or Lessor under this 



                                       15
   376

Agreement shall be given as provided in Subparagraph 2.02(c) and Paragraph 7.01
of the Participation Agreement.

        5.02. Waivers, Amendments. Any term, covenant, agreement or condition of
this Agreement may be amended or waived only as provided in the Participation
Agreement. No failure or delay by any Lessor Party in exercising any right
hereunder shall operate as a waiver thereof or of any other right nor shall any
single or partial exercise of any such right preclude any other further exercise
thereof or of any other right. Unless otherwise specified in any such waiver or
consent, a waiver or consent given hereunder shall be effective only in the
specific instance and for the specific purpose for which given.

        5.03. Successors and Assigns.

                (a) General. This Agreement shall be binding upon and inure to
        the benefit of the Lessor Parties and Lessee and their permitted
        successors and assigns; provided, however, that the Lessor Parties and
        Lessee shall not sell, assign or delegate their respective rights and
        obligations hereunder except as provided in the Participation Agreement
        and in Subparagraph 5.03(b).

               (b) Assignment by Lessee of Purchase Rights. Lessee may assign to
        a third party (an "Assignee Purchaser") its right to purchase the
        Property pursuant to the Partial Purchase Option, the Term Purchase
        Option or the Expiration Date Purchase Option; provided, however, that
        (i) such an assignment shall not relieve Lessee of its obligations to
        consummate or cause the consummation of any such purchase in accordance
        with the terms of this Agreement and (ii) Lessee assumes all
        responsibility for determining the creditworthiness of any such Assignee
        Purchaser. If, after any purchase by an Assignee Purchaser hereunder,
        the purchase price paid by such Assignee Purchaser is recovered from any
        Lessor Party, Lessee shall reimburse such Lessor Party for such recovery
        unless such recovery is due solely to a material misrepresentation or
        covenant breach by such Lessor Party.

        5.04. No Third Party Rights. Nothing expressed in or to be implied from
this Agreement is intended to give, or shall be construed to give, any Person,
other than the Lessor Parties and Lessee and their permitted successors and
assigns, any benefit or legal or equitable right, remedy or claim under or by
virtue of this Agreement or under or by virtue of any provision herein.

        5.05. Partial Invalidity. If at any time any provision of this Agreement
is or becomes illegal, invalid or unenforceable in any respect under the law or
any jurisdiction, neither the legality, validity or enforceability of the
remaining provisions of this Agreement nor the legality, validity or
enforceability of such provision under the law of any other jurisdiction shall
in any way be affected or impaired thereby.

        5.06. Governing Law. This Agreement shall be governed by and construed
in accordance with the laws of the State of California without reference to
conflicts of law rules.





                                       16
   377

        5.07. Counterparts. This Agreement may be executed in any number of
identical counterparts, any set of which signed by all the parties hereto shall
be deemed to constitute a complete, executed original for all purposes.

        5.08. Nature of Lessee's Obligations.

                (a) Independent Obligation. The obligation of Lessee to pay the
        amounts payable by Lessee under this Agreement and the other Operative
        Documents and to perform the other Lessee Obligation are absolute,
        unconditional and irrevocable obligations which are separate and
        independent of the obligations of the Lessor Parties under this
        Agreement and the other Operative Documents and all other events and
        circumstances, including the events and circumstances set forth in
        Subparagraph 5.08(c).

                (b) No Termination or Abatement. This Agreement and the other
        Operative Documents and Lessee's obligation to pay all amounts hereunder
        and to pay and perform all other Lessee Obligations shall continue in
        full force and effect without abatement notwithstanding the occurrence
        or existence of any event or circumstance, including any event or
        circumstance set forth in Subparagraph 5.08(c).

               (c) Full Payment and Performance. Lessee shall make all payments
        under this Agreement and the other Operative Documents in the full
        amounts and at the times required by the terms of this Agreement and the
        other Operative Documents without setoff, deduction or reduction of any
        kind and shall perform all other Lessee Obligations as and when
        required, without regard to any event or circumstances whatsoever,
        including (i) the condition of the Property (including any Improvements
        to the Property made prior to the Commencement Date or during the Term
        of the Lease Agreement); (ii) title to the Property (including
        possession of the Property by any Person or the existence of any Lien or
        any other right, title or interest in or to any of the Property in favor
        of any Person); (iii) the value, habitability, usability, design,
        operation or fitness for use of the Property; (iv) the availability or
        adequacy of utilities and other services to the Property; (v) any
        latent, hidden or patent defect in the Property; (vi) the zoning or
        status of the Property or any other restrictions on the use of the
        Property; (g) the economics of the Property; (vii) any Casualty or
        Condemnation; (viii) the compliance of the Property with any applicable
        Governmental Rule or Insurance Requirement; (ix) any failure by any
        Lessor Party to perform any of its obligations under this Agreement or
        any other Operative Document; or (x) the exercise by any Lessor Party of
        any of its remedies under this Agreement or any other Operative
        Document; provided, however, that (A) Lessee shall have no obligation to
        purchase the Property on the Expiration Date if Lessor fails to remove
        Lessor Liens or deliver the required deed and bill of sale or other
        documents required to be delivered by Lessor hereunder and (B) this
        Paragraph 5.08 shall not abrogate any right which Lessee may have to
        recover damages from any Lessor Party for any material breach by such
        Lessor Party of its obligations under this Agreement or any other
        Operative Document to the extent permitted hereunder or thereunder.

                          [The signature page follows.]



                                       17
   378

        IN WITNESS WHEREOF, Lessee and Lessor have caused this Agreement to be
executed as of the day and year first above written.



LESSEE:                                     KLA-TENCOR CORPORATION

                                            By:
                                               --------------------------------
                                               Name:
                                                    ----------------------------
                                               Title:
                                                     ---------------------------


LESSOR:                                     LEASE PLAN U.S.A., INC.

                                            By:
                                               --------------------------------
                                               Name:
                                                    ----------------------------
                                               Title:
                                                     ---------------------------


                                       18
   379

                                  EXHIBIT A(1)

                     NOTICE OF TERM PURCHASE OPTION EXERCISE

                                     [Date]

Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
  as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY  10019
Attn:  Linda Boardman

        1. Reference is made to the following:

                (a) The Participation Agreement, dated as of November 12, 1997
        (the "Participation Agreement"), among KLA-Tencor Corporation
        ("Lessee"), Lease Plan U.S.A., Inc. ("Lessor"), the financial
        institutions listed in Schedule I to the Participation Agreement (the
        "Participants") and ABN AMRO Bank N.V., as agent for the Participants
        (in such capacity, "Agent");

                (b) The Lease Agreement, dated as of November 12, 1997 (the
        "Lease Agreement"), between Lessee and Lessor; and

                (c) The Purchase Agreement, dated as of November 12, 1997 (the
        "Purchase Agreement"), between Lessee and Lessor.

Unless otherwise indicated, all terms defined in the Participation Agreement
have the same respective meanings when used herein.

        2. Pursuant to Subparagraph 4.01(a) of the Lease Agreement and Paragraph
2.01 of the Purchase Agreement, Lessee hereby irrevocably notifies Lessor that
Lessee is exercising its right to terminate the Lease Agreement prior to the
Scheduled Expiration Date of the Lease Agreement and purchase the Property on
[_________, ____] (which date is a Business Day and which date, after the
delivery of this notice, shall be the Expiration Date of the Lease Agreement).

        IN WITNESS WHEREOF, Lessee has executed this Notice of Term Purchase
Option Exercise on the date set forth above.




                                            KLA-TENCOR CORPORATION



                                            By:
                                               --------------------------------
                                               Name:
                                                    ----------------------------
                                               Title:
                                                     ---------------------------



                                     A(1)-1



   380



                                  EXHIBIT A(2)

                   NOTICE OF PARTIAL PURCHASE OPTION EXERCISE

                                     [Date]

Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
  as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY  10019
Attn:  Linda Boardman

        1.     Reference is made to the following:

                (a) The Participation Agreement, dated as of November 12, 1997
        (the "Participation Agreement"), among KLA-Tencor Corporation
        ("Lessee"), Lease Plan U.S.A., Inc. ("Lessor"), the financial
        institutions listed in Schedule I to the Participation Agreement (the
        "Participants") and ABN AMRO Bank N.V., as agent for the Participants
        (in such capacity, "Agent"); and

                (b) The Purchase Agreement, dated as of November 12, 1997 (the
        "Purchase Agreement"), between Lessee and Lessor.

Unless otherwise indicated, all terms defined in the Participation Agreement
have the same respective meanings when used herein.

        2. Pursuant to Paragraph 2.02 of the Purchase Agreement, Lessee hereby
irrevocably notifies Lessor that Lessee is exercising its right to purchase a
portion of the Property as follows: 

                (a) The Tract[s] of Property to be purchased is [are]
        ________________; and

                (b) The date on which such purchase is to occur is [_________,
        ____] (which date is a Business Day).

        3. Lessee hereby certifies to Lessor, Agent and the Participants that,
on the date of this notice:

                (a) The representations and warranties of Lessee set forth in
        Paragraph 4.01 of the Participation Agreement and in the other Operative
        Documents are true and correct in all material respects as if made on
        such date (except for representations and warranties expressly made as
        of a specified date, which shall be true as of such date);
        
                (b) No Default has occurred and is continuing; and

                (c) All of the Operative Documents are in full force and effect.

        IN WITNESS WHEREOF, Lessee has executed this Notice of Partial Purchase
Option Exercise on the date set forth above.




                                            KLA-TENCOR CORPORATION


                                            By:
                                               --------------------------------
                                               Name:
                                                    ----------------------------
                                               Title:
                                                     ---------------------------


                                     A(2)-1



   381



                                    EXHIBIT B

                       NOTICE OF MARKETING OPTION EXERCISE

                                     [Date]

Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
  as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY  10019
Attn:  Linda Boardman

        1.     Reference is made to the following:

                (a) The Participation Agreement, dated as of November 12, 1997
        (the "Participation Agreement"), among KLA-Tencor Corporation
        ("Lessee"), Lease Plan U.S.A., Inc. ("Lessor"), the financial
        institutions listed in Schedule I to the Participation Agreement (the
        "Participants") and ABN AMRO Bank N.V., as agent for the Participants
        (in such capacity, "Agent"); and

                (b) The Purchase Agreement, dated as of November 12, 1997 (the
        "Purchase Agreement"), between Lessee and Lessor.

Unless otherwise indicated, all terms defined in the Participation Agreement
have the same respective meanings when used herein.

        2. Pursuant to Paragraph 3.01 of the Purchase Agreement, Lessee hereby
notifies Lessor that Lessee is electing to exercise the Marketing Option on the
Scheduled Expiration Date of the Lease Agreement of [_____, ____].

        3. Lessee hereby certifies to Lessor, Agent and the Participants that,
on the date of this notice:

                (a) The representations and warranties of Lessee set forth in
        Paragraph 4.01 of the Participation Agreement and in the other Operative
        Documents are true and correct in all material respects as if made on
        such date (except for representations and warranties expressly made as
        of a specified date, which shall be true as of such date);

                (b) No Default (other than a Non-Marketing Option Event of
        Default under the Lease Agreement) has occurred and is continuing; and

                (c) All of the Operative Documents are in full force and effect.

                                       B-1



   382



        IN WITNESS WHEREOF, Lessee has executed this Notice of Marketing Option
Exercise on the date set forth above.




                                            KLA-TENCOR CORPORATION


                                            By:
                                               --------------------------------
                                               Name:
                                                    ----------------------------
                                               Title:
                                                     ---------------------------


                                       B-2



   383



                                    EXHIBIT C

               NOTICE OF EXPIRATION DATE PURCHASE OPTION EXERCISE

                                     [Date]

Lease Plan U.S.A., Inc.
ABN AMRO Bank N.V.
  as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY  10019
Attn:  Linda Boardman

        1. Reference is made to the following:

                (a) The Participation Agreement, dated as of November 12, 1997
        (the "Participation Agreement"), among KLA-Tencor Corporation
        ("Lessee"), Lease Plan U.S.A., Inc. ("Lessor"), the financial
        institutions listed in Schedule I to the Participation Agreement (the
        "Participants") and ABN AMRO Bank N.V., as agent for the Participants
        (in such capacity, "Agent"); and

                (b) The Purchase Agreement, dated as of November 12, 1997 (the
        "Purchase Agreement"), between Lessee and Lessor.

Unless otherwise indicated, all terms defined in the Participation Agreement
have the same respective meanings when used herein.

        2. Pursuant to Paragraph 3.01 of the Purchase Agreement, Lessee hereby
notifies Lessor that Lessee is electing to exercise the Expiration Date Purchase
Option on the Scheduled Expiration Date of the Lease Agreement of [_____, ____].

        IN WITNESS WHEREOF, Lessee has executed this Notice of Expiration Date
Purchase Option Exercise on the date set forth above.




                                            KLA-TENCOR CORPORATION


                                            By:
                                               --------------------------------
                                               Name:
                                                    ----------------------------
                                               Title:
                                                     ---------------------------



                                       C-1


   384



                                  EXHIBIT D(1)

RECORDING REQUESTED BY
WHEN RECORDED RETURN TO
AND MAIL TAX STATEMENTS TO:
[Purchser]

- ------------------------
- ------------------------
- ------------------------

Documentary Transfer Tax is not of public record and is shown on a separate
sheet attached to this deed.

- -------------------------------------------------------------------------------


                                 QUITCLAIM DEED

          FOR VALUABLE CONSIDERATION, the receipt of which is hereby
acknowledged, LEASE PLAN U.S.A., INC., a Georgia corporation ("Grantor"), hereby
releases, remises and forever quitclaims to [PURCHASER], a _____________
("Grantee"), the real property located in the City of San Jose, County of Santa
Clara, State of California, described on EXHIBIT A attached hereto and made a
part hereof (the "Property").

                           Executed as of _____, 19__.



                                            LEASE PLAN U.S.A., INC.,
                                            a Georgia corporation

                                            By:
                                               ------------------------------

                                            Its:
                                                -----------------------------



                                     D(1)-1



   385



                                    EXHIBIT A

                                LEGAL DESCRIPTION

















Assessor's Parcel No.:
                      -----------------------




                                     D(1)-2



   386




State of 
         ------------------------
County of
         ------------------------
On ___________________ before me, _________________________,
               Date                       Name, Title of Officer
personally appeared 
                    ------------------------------------------------------,
                                  Name(s) of signer(s)

( personally known to me -OR- ( proved to me on the basis of satisfactory

                                evidence to be the person(s) whose name(s)
                                is/are subscribed to the within instrument and
                                acknowledged to me that he/she/they executed the
                                same in his/her/their authorized capacity(ies),
                                and that by his/her/their signature(s) on the
                                instrument the person(s) or the entity upon
                                behalf of which the person(s) acted, executed
                                the instrument.

                                WITNESS my hand and official seal.


                                ------------------------------------






                                     D(1)-3



   387



                              ______________, 19__



Santa Clara County Recorder

           Re:   Request That Statement of Documentary
                 Transfer Tax Not be Recorded

Dear Sir:

           Request is hereby made in accordance with Section 11932 of the
Revenue and Taxation Code that this statement of tax due not be recorded with
the attached deed but be affixed to the deed after recordation and before return
as directed on the deed.

           The attached deed names LEASE PLAN U.S.A., an Georgia corporation, as
grantor, and [PURCHASER], a _________________, as grantee.

           The property being transferred and described in the attached deed is
located in the City of San Jose and County of Santa Clara, State of California.

           The amount of Documentary Transfer Tax due on the attached deed is
$__________, computed on full value of the property conveyed.

                                            LEASE PLAN U.S.A.,
                                            a Georgia corporation

                                            By: 
                                               -------------------------------
                                            Its: 
                                                ------------------------------




                                     D(1)-4



   388



                                  EXHIBIT D(2)

ACKNOWLEDGMENT AND DISCLAIMER OF REPRESENTATIONS AND WARRANTIES

        THIS ACKNOWLEDGMENT OF DISCLAIMER OF REPRESENTATIONS AND WARRANTIES
(this "Certificate") is made as of ___________, 1997 by [PURCHASER], a
_____________ ("Grantee").

        Contemporaneously with execution of this Certificate, LEASE PLAN U.S.A.,
INC., a Georgia corporation ("Lease Plan U.S.A."), is executing and delivering
to Grantee a Quitclaim Deed and a Bill of Sale (the foregoing documents and any
other documents to be executed and delivered to Grantee in connection therewith
are herein called the "Conveyancing Documents" and any of the properties, rights
or other matters assigned, transferred or conveyed pursuant thereto are herein
collectively called the " Property") pursuant to the terms of a Purchase
Agreement dated as of November 12, 1997 by and between Lease Plan U.S.A. and
KLA-Tencor Corporation, a Delaware corporation("KLA-Tencor").

        Notwithstanding any provision contained in the Conveyancing Documents to
the contrary, Grantee acknowledges that Lease Plan U.S.A. is selling and Grantee
is purchasing the Property on an "as is, with all faults" basis and that Grantee
is not relying on any representations or warranties of any kind whatsoever,
express or implied, from Lease Plan U.S.A., its agents, or brokers as to any
matters concerning the Property including (a) the condition of the Property
(including any improvements to the Property); (b) title to the Property
(including possession of the Property by any individual or entity or the
existence of any lien or any other right, title or interest in or to any of the
Property in favor of any person, but excluding any Lessor Liens as defined in
that certain Participation Agreement dated as of November 12, 1997 among
KLA-Tencor, Lease Plan U.S.A., the Participants and ABN AMRO Bank N.V., as agent
for the Participants (in such capacity, "Agent")); (c) the value, habitability,
usability, design, operation or fitness for use of the Property; (d) the
availability or adequacy of utilities and other services to the Property; (e)
any latent, hidden or patent defect in the Property; (f) the zoning or status of
the Property or any other restrictions on the use of the Property; (g) the
economics of the Property; (h) any damage to, destruction or, or decrease in the
value of all or any portion of the Property or any condemnation or other taking
or sale of all or any portion of the Property, by or on account of any actual or
threatened eminent domain proceeding or other taking of action by any
governmental authority or other person have the power of eminent domain; or (i)
the compliance of the Property with any applicable law, rule, regulation,
ordinance, order, code, judgment or similar form of decision of any governmental
authority or any terms, conditions or requirements imposed by any policies of
insurance relating to the Property.

                                 [See next page]


                                     D(2)-1



   389
        The provisions of this Certificate shall be binding on Grantee, its
successors and assigns and any other party claiming through Grantee. Grantee
hereby acknowledges that Lease Plan U.S.A. is entitled to rely and is relying on
this Certificate.

        EXECUTED as of ____________, 1997.

                                                   [PURCHASER],
                                                   a 
                                                     -----------------

                                                   -------------------

                                                   -------------------




                                     D(2)-2




   390
                                    EXHIBIT E

                                  BILL OF SALE

               FOR GOOD AND VALUABLE CONSIDERATION, the receipt of which is
hereby acknowledged, LEASE PLAN U.S.A., Inc., a Georgia corporation ("Seller")
does hereby sell, transfer and convey to [PURCHASER], a
_________________________ ("Purchaser"): 1) the Related Goods (as defined in
that certain Participation Agreement dated as of November 12, 1997 (the
"Participation Agreement") among KLA-Tencor Corporation ("KLA-Tencor"), Seller,
the Participants and ABN AMRO Bank N.V., as agent for the Participants (in such
capacity, "Agent")) in connection with that certain real property commonly known
as _______________, San Jose, California, including, without limitation, the
personal property itemized on SCHEDULE 1 attached hereto and incorporated herein
by this reference (the "Property"), and 2) all Appurtenant Rights, Related
Permits and Related Agreements as those terms are defined in the Participation
Agreement.

          Seller is selling and Purchaser is purchasing the Property on an "as
is, with all faults" basis and Purchaser is not relying on any representations
or warranties of any kind whatsoever, express or implied, from Seller, its
agents, or brokers as to any matters concerning the Property including (a) the
condition of the Property; (b) title to the Property (including possession of
the Property by any individual or entity or the existence of any lien or any
other right, title or interest in or to any of the Property in favor of any
person but excluding any Lessor Liens as defined in the Participation
Agreement); (c) the value, habitability, usability, design, operation or fitness
for use of the Property; or (d) any latent, hidden or patent defect in the
Property.

Dated:         ________, 19__               SELLER:

                                            LEASE PLAN U.S.A., INC.
                                            a Georgia corporation

                                            By: 
                                                -------------------------------
                                            Its: 
                                                -------------------------------

                                            PURCHASER:

                                            [PURCHASER]
                                            a 
                                              ---------------------------------
                                            By: 
                                                -------------------------------
                                            Its: 
                                                -------------------------------


                                       E-1

   391

                                   SCHEDULE 1

                                    PROPERTY



                                       E-2



   392






                                    EXHIBIT F


RECORDING REQUESTED BY
WHEN RECORDED RETURN TO
AND MAIL TAX STATEMENTS TO:

- -------------------------

- -------------------------
Attention: 
          ---------------

Documentary Transfer Tax is not of public record and is shown on a separate
sheet attached to this deed.

- -------------------------------------------------------------------------------


                                 QUITCLAIM DEED

          FOR VALUABLE CONSIDERATION, the receipt of which is hereby
acknowledged, KLA-TENCOR CORPORATION, a Delaware corporation ("Grantor"), hereby
releases, remises and forever quitclaims to [PURCHASER] ("Grantee"), the real
property located in the City of San Jose, County of Santa Clara, State of
California, described on EXHIBIT A attached hereto and made a part hereof (the
"Property").

          Executed as of __________, 19__.



                                            KLA-TENCOR CORPORATION,
                                            a Delaware corporation

                                            By: 
                                               --------------------------------
                                            Its:
                                                -------------------------------




                                       F-1



   393






                                    EXHIBIT A

                                LEGAL DESCRIPTION











Assessor's Parcel No.:  
                       ------------------------







                                       F-2



   394







State of 
         ------------------------
County of 
          -----------------------

On ___________________ before me, _________________________,
         Date                       Name, Title of Officer
personally appeared                                        ,
                   ----------------------------------------
                             Name(s) of signer(s)

( personally known to me -OR- ( proved to me on the basis of satisfactory
                                evidence to be the person(s) whose name(s)
                                is/are subscribed to the within instrument and
                                acknowledged to me that he/she/they executed the
                                same in his/her/their authorized capacity(ies),
                                and that by his/her/their signature(s) on the
                                instrument the person(s) or the entity upon
                                behalf of which the person(s) acted, executed
                                the instrument.



                               WITNESS my hand and official seal.




                               -------------------------------------






                                       F-3



   395





                                       _________ , 1997



Santa Clara County Recorder

           Re:   Request That Statement of Documentary
                 Transfer Tax Not be Recorded

Dear Sir:

           Request is hereby made in accordance with Section 11932 of the
Revenue and Taxation Code that this statement of tax due not be recorded with
the attached deed but be affixed to the deed after recordation and before return
as directed on the deed.

           The attached deed names KLA-TENCOR CORPORATION, a Delaware
corporation, as grantor, and [PURCHASER], as grantee.

           The property being transferred and described in the attached deed is
located in the City of San Jose and County of Santa Clara, State of California.

           The amount of Documentary Transfer Tax due on the attached deed is
$__________, computed on full value of the property conveyed.

                                            KLA-TENCOR CORPORATION,
                                            a Delaware corporation

                                            By: 
                                                --------------------
                                            Its:
                                                --------------------





                                       F-4



   396






                                    EXHIBIT G

                                  BILL OF SALE

        For good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged, KLA-Tencor Corporation, a Delaware corporation
("Seller"), does hereby sell, transfer, and convey unto [PURCHASER] ("Buyer"):
1) without warranty, the Related Goods (as defined in that certain Participation
Agreement dated as of November 12, 1997 (the "Participation Agreement") among
Lease Plan U.S.A., Inc., Seller, the Participants and ABN AMRO Bank N.V., as
agent for the Participants (in such capacity, "Agent")) in connection with that
certain real property commonly known as _______________, San Jose, California,
including, without limitation, the personal property itemized on SCHEDULE 1
attached hereto and incorporated herein by this reference (the "Property"), and
2) all Appurtenant Rights, Related Permits and Related Agreements as those terms
are defined in the Participation Agreement.

        DATED this ____ day of __________, 19__.

                             SELLER:        KLA-Tencor Corporation,
                                            a Delaware corporation



                                            By:
                                               ---------------------------
                                            Its:
                                                --------------------------



                                       G-1



   397



                                   SCHEDULE 1

                                    PROPERTY





                                      G-2
   398



                                                                EXECUTION COPY

================================================================================









                               PURCHASE AGREEMENT


                                     BETWEEN



                             KLA-TENCOR CORPORATION



                                       AND

                             LEASE PLAN U.S.A., INC.



                                NOVEMBER 12, 1997












================================================================================











   399



                                TABLE OF CONTENTS



                                                                                          Page

                                                                                     
SECTION 1.        INTERPRETATION............................................................2

1.01.             Definitions...............................................................2

1.02.             Rules of Construction.....................................................2

SECTION 2.        OPTIONAL PURCHASE BY LESSEE DURING THE TERM...............................2

2.01.             Term Purchase Option......................................................2

2.02.             Partial Purchase Option...................................................3

SECTION 3.        OBLIGATIONS OF LESSEE ON THE EXPIRATION DATE..............................4

3.01.             Alternative...............................................................4

3.02.             Marketing Option..........................................................4

3.03.             Expiration Date Purchase Option..........................................10

SECTION 4.        TERMS OF ALL PURCHASES...................................................10

4.01.             Representations and Warranties of Parties................................10

4.02.             As Is Purchase...........................................................12

4.03.             Release..................................................................13

4.04.             Permits, Approvals, Etc..................................................13

4.05.             Costs....................................................................13

4.06.             Lessee's Expiration Date and Partial Purchase Date Payment
                  Obligations..............................................................13

4.07.             Lessor Liens.............................................................14

4.08.             Transfer Documents.......................................................14

4.09.             Casualty and Condemnation Proceeds.......................................15

4.10.             Payments.................................................................15

4.11.             Environmental Reports....................................................15

4.12.             Further Assurances.......................................................15

SECTION 5.        MISCELLANEOUS............................................................15

5.01.             Notices..................................................................16

5.02.             Waivers, Amendments......................................................16

5.03.             Successors and Assigns...................................................16

5.04.             No Third Party Rights....................................................16

5.05.             Partial Invalidity.......................................................16

5.06.             Governing Law............................................................16


                                        i
   400



                                                                                          Page
                                                                                     
5.07.             Counterparts.............................................................17

5.08.             Nature of Lessee's Obligations...........................................17




EXHIBITS

        A(1)   Notice of Term Purchase Option Exercise (2.02) 
        A(2)   Notice of Partial Purchase Option Exercise (2.02) 
        B      Notice of Marketing Option Exercise (3.01) 
        C      Notice of Expiration Date Purchase Option Exercise (2.02) 
        D(1)   Deed (Lessor) (4.08(a)) 
        D(2)   Acknowledgment of Disclaimer of Representations and Warranties 
               (4.08(a)) 
        E      Bill of Sale (Lessor) (4.08(a)) 
        F      Deed (Lessee) ((4.08(b)) 
        G      Bill of Sale (Lessee) 4.08(b))




                                       ii
   401

              ASSIGNMENT OF LEASE AGREEMENT AND PURCHASE AGREEMENT

         THIS ASSIGNMENT OF LEASE AGREEMENT AND PURCHASE AGREEMENT (this
"Assignment" herein), dated as of November 12, 1997, is executed by:

                  (1) LEASE PLAN U.S.A., INC., a Georgia corporation ("Lessor")

                                   in favor of

                  (2) ABN AMRO BANK N.V., as agent for the Participants under
         the Participation Agreement referred to in Recital B below (in such
         capacity, "Agent").

                                    RECITALS

         A. KLA-Tencor Corporation, a Delaware corporation ("Lessee"), has
requested Lessor and the financial institutions which are "Participants" under
the Participation Agreement referred to in Recital B below (such financial
institutions to be referred to collectively as the "Participants") to provide to
Lessee a certain lease facility. Pursuant to such facility:

                  (1) Lessor would (a) acquire certain property designated by
         Lessee (either through purchase or lease), (b) lease to Lessee such
         property and certain other property currently held by Lessor, (c)
         appoint Lessee as Lessor's agent to make certain improvements to a
         portion of such property, (d) make advances to finance such
         improvements and to pay certain related expenses, and (e) grant to
         Lessee the right to purchase such property; and

                  (2) The Participants would participate in such lease facility
         by (a) funding the purchase prices and other advances to be made by
         Lessor and (b) acquiring participation interests in the rental and
         certain other payments to be made by Lessee.

         B. Pursuant to a Participation Agreement dated of even date herewith
(the "Participation Agreement") among Lessee, Lessor, the Participants and
Agent, Lessor and the Participants have agreed to provide such lease facility
upon the terms and subject to the conditions set forth therein, including,
without limitation, the execution and delivery of (1) the Lease Agreement dated
as of November 12, 1997 between Lessee and Lessor (the "Lease Agreement"),
pursuant to which Lessee has leased from Lessor the lots, pieces, tracts and
parcels of land described in Exhibit A (the "Land") and the other property
described in the Lease Agreement (the "Property"), (2) the Purchase Agreement
dated as of November 12, 1997 between Lessee and Lessor (the "Purchase
Agreement"), pursuant to which Lessee may purchase the Property from Lessor
under certain circumstances, and (3) this Assignment.

                                    AGREEMENT

         NOW, THEREFORE, in consideration of the above Recitals and the mutual
covenants herein contained, the parties hereto hereby agree as follows:



   402

SECTION 1. INTERPRETATION.

         1.01. Definitions. Unless otherwise indicated in this Assignment or any
other Operative Document, each term set forth in Schedule 1.01 to the
Participation Agreement, when used in this Assignment or any other Operative
Document, shall have the respective meaning given to that term in such Schedule
1.01 or in the provision of this Assignment or other document, instrument or
agreement referenced in such Schedule 1.01.

         1.02. Rules of Construction. Unless otherwise indicated in this
Assignment or any other Operative Document, the rules of construction set forth
in Schedule 1.02 to the Participation Agreement shall apply to this Assignment
and the other Operative Documents.

SECTION 2. ASSIGNMENT.

         2.01. Assignment. As security for the Lessor Obligations, Lessor hereby
irrevocably and unconditionally grants, conveys, transfers and assigns to Agent,
for the benefit of the Participants and Agent, all estate, right, title and
interest of Lessor, whether now owned or hereafter acquired, in the Lease
Agreement and the Purchase Agreement, including all claims and rights to the
payment of money at any time arising in connection with any repudiation,
rejection or breach of either agreement by Lessee or a trustee or receiver of
Lessee in any bankruptcy, insolvency or similar proceeding.

         2.02. Receipt of Rents, Etc. Lessor hereby irrevocably designates Agent
(or its designee) to receive all Rents and other payments to be made by Lessee
under the Lease Agreement and the Purchase Agreement. Lessor shall direct (and
hereby directs) Lessee to deliver to Agent (or its designee), at its address set
forth in the Participation Agreement or at such other address or to such other
Person as Agent shall designate, all such payments, and no delivery thereof by
Lessee shall be of any force or effect unless made to Agent (or its designee),
as herein provided. Lessor and Agent agree that Lessee, in making such payments
to Agent pursuant to the directions contained in this Assignment and in reliance
on such directions shall be deemed to have satisfied its obligation for such
payments under the Lease Agreement.

         2.03. Irrevocability; Supplemental Instruments. Lessor agrees that (a)
this Assignment is irrevocable, (b) Lessor will not take any action under the
Lease Agreement or the Purchase Agreement or otherwise which is inconsistent
with this Assignment, (c) any action, assignment, designation or direction
inconsistent herewith shall be void and (d) Lessor will from time to time
execute and deliver all instruments of further assurance and do such further
acts as may be reasonably necessary or proper to carry out more effectively the
purpose of this Assignment.

         2.04. Validity. Lessor represents, warrants, covenants and agrees that
(a) Lessor has not assigned or executed any assignment of, and will not assign
or execute any assignment of, Lessor's estate, right, title or interest in the
Lease Agreement or the Purchase Agreement to anyone other than Agent, (b) any
such assignment is void, and (c) Lessor has not taken any action that impairs
the rights of Agent hereunder.


                                       2
   403


         2.05. Lessor Remains Liable. The assignment made hereby is made for the
purpose of securing the Lessor Obligations only and does not (a) impair or
diminish in any way the obligations of Lessor under the Lease Agreement or the
Purchase Agreement or (b) obligate Agent (or its designee) or any Participant to
perform any of the obligations of Lessor under the Lease Agreement or the
Purchase Agreement. This Assignment shall not operate to cause Agent (or its
designee) to be regarded as a mortgagee in possession.

         2.06. Effect of Amendments. If the Lease Agreement or the Purchase
Agreement shall be amended, it shall continue to be subject to the provisions
hereof without the necessity of any further act by any of the parties hereto.

         2.07. Absolute Assignment. Lessor has, subject to and in accordance
with the terms and conditions of this Assignment, assigned and transferred unto
Agent all of Lessor's right, title and interest in and to all Rents and other
amounts now or hereafter payable by Lessee under the Lease Agreement and the
Purchase Agreement, it being intended to establish an absolute transfer and
assignment, subject to and in accordance with the terms and conditions of this
Assignment, of all such Rents and other amounts to Agent and not merely to grant
a security interest therein. Subject to the Lease Agreement, Agent (or its
designee) may, in Lessor's name and stead, operate the Property and rent, lease
or let all or any portion of the Property to any party or parties at such rental
and upon such terms as Agent (or its designee) shall, in its discretion,
determine.

         2.08. Receivers. If, notwithstanding the terms of this Assignment, a
petition or order for sequestration of rents, or the appointment of a receiver
or some similar judicial action or order is deemed required under applicable
California law to allow Agent to continue to collect the Rents and other amounts
payable by Lessee under the Lease Agreement or the Purchase Agreement, then it
is agreed by Lessor that any proof of claim or similar document filed by Agent
in connection with the breach or rejection of the Lease Agreement or the
Purchase Agreement by Lessee thereunder or the trustee of any lessee under any
federal or state bankruptcy, insolvency or other similar law shall, for the
purpose of perfecting Agent's rights, be deemed to constitute action required
under such California law. Upon the occurrence and during the continuance of an
Event of Default, Lessor hereby consents to the appointment of a receiver for
Lessor's interest in the Property without regard to the solvency of Lessor or to
the collateral that may be available for the satisfaction of the Lessor
Obligations.

SECTION 3. MISCELLANEOUS.

         3.01. Notices. Except as otherwise specified herein, all notices,
requests, demands, consents, instructions or other communications to or upon
Lessor or Agent under this Assignment shall be given as provided in Paragraph
7.01 of the Participation Agreement.

         3.02. Waivers; Amendments. Any term, covenant, agreement or condition
of this Assignment may be amended or waived only as provided in the
Participation Agreement. No failure or delay by Agent in exercising any right
hereunder shall operate as a waiver thereof or of any other right nor shall any
single or partial exercise of any such right preclude any other further exercise
thereof or of any other right. Unless otherwise specified in any such waiver or
consent, 


                                       3
   404

a waiver or consent given hereunder shall be effective only in the
specific instance and for the specific purpose for which given.

         3.03. Successors and Assigns. This Assignment shall be binding upon and
inure to the benefit of the Lessor Parties and their permitted successors and
assigns; provided, however, that the Lessor Parties shall not sell, assign or
delegate their respective rights and obligations hereunder except as provided in
the Participation Agreement.

         3.04. No Third Party Rights. Nothing expressed in or to be implied from
this Assignment is intended to give, or shall be construed to give, any Person,
other than the Lessor Parties and their permitted successors and assigns, any
benefit or legal or equitable right, remedy or claim under or by virtue of this
Assignment or under or by virtue of any provision herein.

         3.05. Partial Invalidity. If at any time any provision of this
Assignment is or becomes illegal, invalid or unenforceable in any respect under
the law or any jurisdiction, neither the legality, validity or enforceability of
the remaining provisions of this Assignment nor the legality, validity or
enforceability of such provision under the law of any other jurisdiction shall
in any way be affected or impaired thereby.

         3.06. Governing Law. This Assignment shall be governed by and construed
in accordance with the laws of the State of California without reference to
conflicts of law rules.

         3.07. Counterparts. This Assignment may be executed in any number of
identical counterparts, any set of which signed by all the parties hereto shall
be deemed to constitute a complete, executed original for all purposes.

                          [The signature page follows.]


                                       4
   405



                  IN WITNESS WHEREOF, Lessor has caused this Assignment to be
executed as of the day and year first above written.

LESSOR:                         LEASE PLAN U.S.A., INC.


                                         By: _____________________________
                                             Name: _______________________
                                             Title: ______________________


                                       5

   406



STATE OF CALIFORNIA                 )
                                    )        ss
COUNTY OF __________________        )

                  On _____________, 1997, before me, ___________________ a
Notary Public in and for the State of California, personally appeared ,
personally known to me (or proved to me on the basis of satisfactory evidence)
to be the person(s) whose name(s) is/are subscribed to the within instrument and
acknowledged to me that he/she/they executed the same in his/her/their
authorized capacity(ies), and that by his/her/their signature(s) on the
instrument the person(s) or the entity on behalf of which the person(s) acted,
executed the instrument.

                  Witness my hand and official seal.




[SEAL]

    __________________________







   407



                                    EXHIBIT A

                                      LAND



                                      A-1





   408




                                    EXHIBIT B

                               LESSEE'S CONSENT TO
              ASSIGNMENT OF LEASE AGREEMENT AND PURCHASE AGREEMENT

                                November 12, 1997

Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
135 So. LaSalle Street, Suite 711
Chicago, IL  60603

ABN AMRO Bank N.V.,
  as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY 10019

         1. Reference is made to the following:

                  (a) The Participation Agreement, dated as of November 12, 1997
         (the "Participation Agreement"), among KLA-Tencor Corporation
         ("Lessee"), Lease Plan U.S.A., Inc. ("Lessor"), the financial
         institutions listed in Schedule I to the Participation Agreement (the
         "Participants") and ABN AMRO Bank N.V., as agent for the Participants
         (in such capacity, "Agent");

                  (b) The Lease Agreement, dated as of November 12, 1997 (the
         "Lease Agreement"), between Lessee and Lessor;

                  (c) The Purchase Agreement, dated as of November 12, 1997 (the
         "Purchase Agreement"), between Lessee and Lessor; and

                  (d) The Assignment of Lease Agreement and Purchase Agreement,
         dated as of November 12, 1997 (the "Assignment of Lease"), executed by
         Lessor in favor of Agent.

Unless otherwise indicated, all terms defined in the Participation Agreement
have the same respective meanings when used herein.

         2. Consent. Lessee hereby consents to the Assignment of Lease.

         3. Payments. Lessee agrees to pay and deliver to Agent (or its
designee) all Rents and other amounts payable by Lessee under the Lease
Agreement and the Purchase Agreement in accordance with the terms thereof.
Lessee will not, for any reason whatsoever, seek to recover from Agent (or its
designee) any moneys paid to Agent (or its designee) by virtue of the Assignment
of Lease.




                                      B-1
   409

         4. Lessee's Other Agreements. Lessee hereby further agrees with Lessor
and Agent as follows:

                  (a) Lessee agrees (i) to deliver to Agent (or its designee)
         and Lessor, at their addresses set forth in the Participation Agreement
         or at such other addresses as Agent or Lessor, as the case may be, may
         designate, duplicate originals or copies of all notices, undertakings,
         demands, statements, documents and other communications which Lessee is
         required or permitted to deliver pursuant to the Lease Agreement, the
         Purchase Agreement or the Assignment of Lease; (ii) that any notice
         delivered or declaration made to Lessee by Agent (or its designee)
         pursuant to the Lease Agreement or the Purchase Agreement shall be
         effective as a notice given or declaration made to Lessee by Lessor;
         (iii) that Agent (or its designee) shall not by reason of the
         Assignment of Lease be subject to any liability or obligation under the
         Lease Agreement or the Purchase Agreement except as set forth in the
         Assignment of Lease; and (iv) that any waiver, consent or approval by
         Lessor under the Lease Agreement or the Purchase Agreement shall not be
         valid unless approved in writing by Agent (or its designee).

                  (b) Lessee agrees to remain obligated under the Lease
         Agreement and the Purchase Agreement in accordance with their
         respective terms, and to take no action to terminate (other than in
         accordance with the terms thereof), annul, rescind or avoid the Lease
         Agreement, the Purchase Agreement or this Consent or to abate, reduce,
         offset, suspend or defer or make any counterclaim or raise any defense
         (other than the defense of payment to Agent (or its designee)) with
         respect to the Rents or other amounts payable thereunder or to cease
         paying such amounts to Agent (or its designee) as provided herein.

                  (c) Lessee hereby agrees that upon the occurrence of any Event
         of Default, Agent (or its designee) shall have the right to deliver a
         notice of default under the Lease Agreement, which shall be effective
         for all purposes under the Lease Agreement as if sent by Lessor.

                  (d) Lessee shall notify Agent (or its designee) at its address
         specified in the Participation Agreement, or such other address as
         Agent may designate, of any default by Lessor under the Lease Agreement
         and agrees that no such default shall entitle Lessee to terminate
         (other than in accordance with the terms of the Lease Agreement),
         annul, rescind or avoid the Lease Agreement or reduce or abate the
         Rents or other amounts payable thereunder.

         5. Amendment or Termination; Agent's Designation. Lessee agrees that it
will not, unilaterally or by agreement, subordinate, amend, supplement, modify,
extend (except in accordance with the express terms thereof), discharge, waive
or terminate (other than in accordance with the terms thereof) the Lease
Agreement, the Purchase Agreement or this Consent without Agent's prior written
consent, and that any attempted subordination, amendment, supplement,
modification, extension, discharge, waiver or termination in violation of this
Section 5 without such consent shall be null and void. In the event that the
Lease Agreement or the Purchase Agreement shall be amended or supplemented as
herein permitted, 


                                      B-2


   410

the Lease Agreement or the Purchase Agreement, as so amended or supplemented,
shall continue to be subject to the provisions of the Assignment of Lease and
this Consent without the necessity of any further act by any of the parties
thereto or hereto.

         6. Continuing Obligations of Lessor and Lessee. Neither the execution
and delivery of the Assignment of Lease, nor any action or inaction on the part
of Agent shall impair or diminish any obligations of Lessor or Lessee under the
Lease Agreement or the Purchase Agreement, and shall not impose on Agent (or its
designee) any such obligations, nor shall it impose on Agent (or its designee) a
duty to produce Rents or cause Agent to be a mortgagee or pledgee in possession
for any purpose. Except as specifically set forth in this Consent, none of the
terms of the Assignment of Lease shall impose upon Lessee any greater
obligations than those set forth in the Lease Agreement, the Purchase Agreement
and the other Operative Documents.

         7. Partial Invalidity. If at any time any provision of this Consent is
or becomes illegal, invalid or unenforceable in any respect under the law of any
jurisdiction, neither the legality, validity or enforceability of the remaining
provisions of this Consent nor the legality, validity or enforceability of such
provision under the law of any other jurisdiction shall in any way be affected
or impaired thereby.

         8. Governing Law. This Consent shall be governed by and construed in
accordance with the laws of the State of California without reference to
conflicts of law rules.

                            [SIGNATURE PAGE FOLLOWS]





                                      B-3

   411





         IN WITNESS WHEREOF, Lessee has executed this Consent on the date set
forth above.

         LESSEE:                         KLA-TENCOR CORPORATION


                                         By: _______________________________
                                             Name: _________________________
                                             Title: ________________________



                                      B-4


   412



         RECORDING REQUESTED BY AND
WHEN RECORDED RETURN TO:

Thomas Y. Coleman, Esq.
Orrick, Herrington & Sutcliffe LLP
Old Federal Reserve Bank Building
400 Sansome Street
San Francisco, California 94111

================================================================================





                          ASSIGNMENT OF LEASE AGREEMENT
                             AND PURCHASE AGREEMENT


                                       BY


                             LEASE PLAN U.S.A., INC.


                                   IN FAVOR OF


                               ABN AMRO BANK N.V.,
                          AS AGENT FOR THE PARTICIPANTS


                                NOVEMBER 12, 1997






================================================================================

   413
              ASSIGNMENT OF LEASE AGREEMENT AND PURCHASE AGREEMENT

        THIS ASSIGNMENT OF LEASE AGREEMENT AND PURCHASE AGREEMENT (this
"Assignment" herein), dated as of November 12, 1997, is executed by:

        (1) LEASE PLAN U.S.A., INC., a Georgia corporation ("Lessor")

                                         in favor of

        (2) ABN AMRO BANK N.V., as agent for the Participants under the
Participation Agreement referred to in Recital B below (in such capacity,
"Agent").

                                    RECITALS

        A. KLA-Tencor Corporation, a Delaware corporation ("Lessee"), has
requested Lessor and the financial institutions which are "Participants" under
the Participation Agreement referred to in Recital B below (such financial
institutions to be referred to collectively as the "Participants") to provide to
Lessee a certain lease facility. Pursuant to such facility:

        (1) Lessor would (a) acquire certain property designated by Lessee
(either through purchase or lease), (b) lease to Lessee such property and
certain other property currently held by Lessor, (c) appoint Lessee as Lessor's
agent to make certain improvements to a portion of such property, (d) make
advances to finance such improvements and to pay certain related expenses, and
(e) grant to Lessee the right to purchase such property; and

        (2) The Participants would participate in such lease facility by (a)
funding the purchase prices and other advances to be made by Lessor and (b)
acquiring participation interests in the rental and certain other payments to be
made by Lessee.

        B. Pursuant to a Participation Agreement dated of even date herewith
(the "Participation Agreement") among Lessee, Lessor, the Participants and
Agent, Lessor and the Participants have agreed to provide such lease facility
upon the terms and subject to the conditions set forth therein, including,
without limitation, the execution and delivery of (1) the Lease Agreement dated
as of November 12, 1997 between Lessee and Lessor (the "Lease Agreement"),
pursuant to which Lessee has leased from Lessor the lots, pieces, tracts and
parcels of land described in Exhibit A (the "Land") and the other property
described in the Lease Agreement (the "Property"), (2) the Purchase Agreement
dated as of November 12, 1997 between Lessee and Lessor (the "Purchase
Agreement"), pursuant to which Lessee may purchase the Property from Lessor
under certain circumstances, and (3) this Assignment.

                                    AGREEMENT

        NOW, THEREFORE, in consideration of the above Recitals and the mutual
covenants herein contained, the parties hereto hereby agree as follows:

   414

SECTION 1. INTERPRETATION.

        1.01. Definitions. Unless otherwise indicated in this Assignment or any
other Operative Document, each term set forth in Schedule 1.01 to the
Participation Agreement, when used in this Assignment or any other Operative
Document, shall have the respective meaning given to that term in such Schedule
1.01 or in the provision of this Assignment or other document, instrument or
agreement referenced in such Schedule 1.01.

        1.02. Rules of Construction. Unless otherwise indicated in this
Assignment or any other Operative Document, the rules of construction set forth
in Schedule 1.02 to the Participation Agreement shall apply to this Assignment
and the other Operative Documents.

SECTION 2. ASSIGNMENT.

     2.01. Assignment. As security for the Lessor Obligations, Lessor hereby
irrevocably and unconditionally grants, conveys, transfers and assigns to Agent,
for the benefit of the Participants and Agent, all estate, right, title and
interest of Lessor, whether now owned or hereafter acquired, in the Lease
Agreement and the Purchase Agreement, including all claims and rights to the
payment of money at any time arising in connection with any repudiation,
rejection or breach of either agreement by Lessee or a trustee or receiver of
Lessee in any bankruptcy, insolvency or similar proceeding.

     2.02. Receipt of Rents, Etc. Lessor hereby irrevocably designates Agent (or
its designee) to receive all Rents and other payments to be made by Lessee under
the Lease Agreement and the Purchase Agreement. Lessor shall direct (and hereby
directs) Lessee to deliver to Agent (or its designee), at its address set forth
in the Participation Agreement or at such other address or to such other Person
as Agent shall designate, all such payments, and no delivery thereof by Lessee
shall be of any force or effect unless made to Agent (or its designee), as
herein provided. Lessor and Agent agree that Lessee, in making such payments to
Agent pursuant to the directions contained in this Assignment and in reliance on
such directions shall be deemed to have satisfied its obligation for such
payments under the Lease Agreement.

     2.03. Irrevocability; Supplemental Instruments. Lessor agrees that (a) this
Assignment is irrevocable, (b) Lessor will not take any action under the Lease
Agreement or the Purchase Agreement or otherwise which is inconsistent with this
Assignment, (c) any action, assignment, designation or direction inconsistent
herewith shall be void and (d) Lessor will from time to time execute and deliver
all instruments of further assurance and do such further acts as may be
reasonably necessary or proper to carry out more effectively the purpose of this
Assignment.

        2.04. Validity. Lessor represents, warrants, covenants and agrees that
(a) Lessor has not assigned or executed any assignment of, and will not assign
or execute any assignment of, Lessor's estate, right, title or interest in the
Lease Agreement or the Purchase Agreement to anyone other than Agent, (b) any
such assignment is void, and (c) Lessor has not taken any action that impairs
the rights of Agent hereunder.

        2.05. Lessor Remains Liable. The assignment made hereby is made for the
purpose of securing the Lessor Obligations only and does not (a) impair or
diminish in any way the 



                                       2
   415

obligations of Lessor under the Lease Agreement or the Purchase Agreement or (b)
obligate Agent (or its designee) or any Participant to perform any of the
obligations of Lessor under the Lease Agreement or the Purchase Agreement. This
Assignment shall not operate to cause Agent (or its designee) to be regarded as
a mortgagee in possession.

        2.06. Effect of Amendments. If the Lease Agreement or the Purchase
Agreement shall be amended, it shall continue to be subject to the provisions
hereof without the necessity of any further act by any of the parties hereto.

     2.07. Absolute Assignment. Lessor has, subject to and in accordance with
the terms and conditions of this Assignment, assigned and transferred unto Agent
all of Lessor's right, title and interest in and to all Rents and other amounts
now or hereafter payable by Lessee under the Lease Agreement and the Purchase
Agreement, it being intended to establish an absolute transfer and assignment,
subject to and in accordance with the terms and conditions of this Assignment,
of all such Rents and other amounts to Agent and not merely to grant a security
interest therein. Subject to the Lease Agreement, Agent (or its designee) may,
in Lessor's name and stead, operate the Property and rent, lease or let all or
any portion of the Property to any party or parties at such rental and upon such
terms as Agent (or its designee) shall, in its discretion, determine.

     2.08. Receivers. If, notwithstanding the terms of this Assignment, a
petition or order for sequestration of rents, or the appointment of a receiver
or some similar judicial action or order is deemed required under applicable
California law to allow Agent to continue to collect the Rents and other amounts
payable by Lessee under the Lease Agreement or the Purchase Agreement, then it
is agreed by Lessor that any proof of claim or similar document filed by Agent
in connection with the breach or rejection of the Lease Agreement or the
Purchase Agreement by Lessee thereunder or the trustee of any lessee under any
federal or state bankruptcy, insolvency or other similar law shall, for the
purpose of perfecting Agent's rights, be deemed to constitute action required
under such California law. Upon the occurrence and during the continuance of an
Event of Default, Lessor hereby consents to the appointment of a receiver for
Lessor's interest in the Property without regard to the solvency of Lessor or to
the collateral that may be available for the satisfaction of the Lessor
Obligations.

SECTION 3. MISCELLANEOUS.

        3.01. Notices. Except as otherwise specified herein, all notices,
requests, demands, consents, instructions or other communications to or upon
Lessor or Agent under this Assignment shall be given as provided in Paragraph
7.01 of the Participation Agreement.

        3.02. Waivers; Amendments. Any term, covenant, agreement or condition of
this Assignment may be amended or waived only as provided in the Participation
Agreement. No failure or delay by Agent in exercising any right hereunder shall
operate as a waiver thereof or of any other right nor shall any single or
partial exercise of any such right preclude any other further exercise thereof
or of any other right. Unless otherwise specified in any such waiver or consent,
a waiver or consent given hereunder shall be effective only in the specific
instance and for the specific purpose for which given.

                                       3
   416

        3.03. Successors and Assigns. This Assignment shall be binding upon and
inure to the benefit of the Lessor Parties and their permitted successors and
assigns; provided, however, that the Lessor Parties shall not sell, assign or
delegate their respective rights and obligations hereunder except as provided in
the Participation Agreement.

        3.04. No Third Party Rights. Nothing expressed in or to be implied from
this Assignment is intended to give, or shall be construed to give, any Person,
other than the Lessor Parties and their permitted successors and assigns, any
benefit or legal or equitable right, remedy or claim under or by virtue of this
Assignment or under or by virtue of any provision herein.

        3.05. Partial Invalidity. If at any time any provision of this
Assignment is or becomes illegal, invalid or unenforceable in any respect under
the law or any jurisdiction, neither the legality, validity or enforceability of
the remaining provisions of this Assignment nor the legality, validity or
enforceability of such provision under the law of any other jurisdiction shall
in any way be affected or impaired thereby.

        3.06. Governing Law. This Assignment shall be governed by and construed
in accordance with the laws of the State of California without reference to
conflicts of law rules.

        3.07. Counterparts. This Assignment may be executed in any number of
identical counterparts, any set of which signed by all the parties hereto shall
be deemed to constitute a complete, executed original for all purposes.

                          [The signature page follows.]


                                       4
   417

               IN WITNESS WHEREOF, Lessor has caused this Assignment to be
executed as of the day and year first above written.

LESSOR:                                LEASE PLAN U.S.A., INC.


                                       By: _____________________________
                                              Name: _______________________
                                              Title: ________________________


                                       5
   418

STATE OF CALIFORNIA_________________)
                                    )ss
COUNTY OF __________________________)

        On _____________, 1997, before me, ___________________ a Notary Public
in and for the State of California, personally appeared __________, personally
known to me (or proved to me on the basis of satisfactory evidence) to be the
person(s) whose name(s) is/are subscribed to the within instrument and
acknowledged to me that he/she/they executed the same in his/her/their
authorized capacity(ies), and that by his/her/their signature(s) on the
instrument the person(s) or the entity on behalf of which the person(s) acted,
executed the instrument.

               Witness my hand and official seal.




[SEAL]

      -------------------------------

   419
                                    EXHIBIT A

                                      LAND


                                      A-1
   420

                                    EXHIBIT B

                               LESSEE'S CONSENT TO
              ASSIGNMENT OF LEASE AGREEMENT AND PURCHASE AGREEMENT

                                November 12, 1997

Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
135 So. LaSalle Street, Suite 711
Chicago, IL  60603

ABN AMRO Bank N.V.,
  as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY  10019

        1.     Reference is made to the following:

                (a) The Participation Agreement, dated as of November 12, 1997
(the "Participation Agreement"), among KLA-Tencor Corporation ("Lessee"), Lease
Plan U.S.A., Inc. ("Lessor"), the financial institutions listed in Schedule I to
the Participation Agreement (the "Participants") and ABN AMRO Bank N.V., as
agent for the Participants (in such capacity, "Agent");

                (b) The Lease Agreement, dated as of November 12, 1997 (the
"Lease Agreement"), between Lessee and Lessor; 

                (c) The Purchase Agreement, dated as of November 12, 1997 (the
"Purchase Agreement"), between Lessee and Lessor; and
                                               
                (d) The Assignment of Lease Agreement and Purchase Agreement,
dated as of November 12, 1997 (the "Assignment of Lease"), executed by Lessor in
favor of Agent.

Unless otherwise indicated, all terms defined in the Participation Agreement
have the same respective meanings when used herein.

        2. Consent. Lessee hereby consents to the Assignment of Lease.

        3. Payments. Lessee agrees to pay and deliver to Agent (or its designee)
all Rents and other amounts payable by Lessee under the Lease Agreement and the
Purchase Agreement in accordance with the terms thereof. Lessee will not, for
any reason whatsoever, seek to recover from Agent (or its designee) any moneys
paid to Agent (or its designee) by virtue of the Assignment of Lease.

                                      B-1
   421

        4. Lessee's Other Agreements. Lessee hereby further agrees with Lessor
and Agent as follows:

               (a) Lessee agrees (i) to deliver to Agent (or its designee) and
        Lessor, at their addresses set forth in the Participation Agreement or
        at such other addresses as Agent or Lessor, as the case may be, may
        designate, duplicate originals or copies of all notices, undertakings,
        demands, statements, documents and other communications which Lessee is
        required or permitted to deliver pursuant to the Lease Agreement, the
        Purchase Agreement or the Assignment of Lease; (ii) that any notice
        delivered or declaration made to Lessee by Agent (or its designee)
        pursuant to the Lease Agreement or the Purchase Agreement shall be
        effective as a notice given or declaration made to Lessee by Lessor;
        (iii) that Agent (or its designee) shall not by reason of the Assignment
        of Lease be subject to any liability or obligation under the Lease
        Agreement or the Purchase Agreement except as set forth in the
        Assignment of Lease; and (iv) that any waiver, consent or approval by
        Lessor under the Lease Agreement or the Purchase Agreement shall not be
        valid unless approved in writing by Agent (or its designee).

               (b) Lessee agrees to remain obligated under the Lease Agreement
        and the Purchase Agreement in accordance with their respective terms,
        and to take no action to terminate (other than in accordance with the
        terms thereof), annul, rescind or avoid the Lease Agreement, the
        Purchase Agreement or this Consent or to abate, reduce, offset, suspend
        or defer or make any counterclaim or raise any defense (other than the
        defense of payment to Agent (or its designee)) with respect to the Rents
        or other amounts payable thereunder or to cease paying such amounts to
        Agent (or its designee) as provided herein.

                (c) Lessee hereby agrees that upon the occurrence of any Event
        of Default, Agent (or its designee) shall have the right to deliver a
        notice of default under the Lease Agreement, which shall be effective
        for all purposes under the Lease Agreement as if sent by Lessor.

                (d) Lessee shall notify Agent (or its designee) at its address
        specified in the Participation Agreement, or such other address as Agent
        may designate, of any default by Lessor under the Lease Agreement and
        agrees that no such default shall entitle Lessee to terminate (other
        than in accordance with the terms of the Lease Agreement), annul,
        rescind or avoid the Lease Agreement or reduce or abate the Rents or
        other amounts payable thereunder.

        5. Amendment or Termination; Agent's Designation. Lessee agrees that it
will not, unilaterally or by agreement, subordinate, amend, supplement, modify,
extend (except in accordance with the express terms thereof), discharge, waive
or terminate (other than in accordance with the terms thereof) the Lease
Agreement, the Purchase Agreement or this Consent without Agent's prior written
consent, and that any attempted subordination, amendment, supplement,
modification, extension, discharge, waiver or termination in violation of this
Section 5 without such consent shall be null and void. In the event that the
Lease Agreement or the Purchase Agreement shall be amended or supplemented as
herein permitted, the Lease Agreement or the Purchase Agreement, as so amended
or supplemented, shall continue

                                      B-2
   422

to be subject to the provisions of the Assignment of Lease and this Consent
without the necessity of any further act by any of the parties thereto or
hereto.

        6. Continuing Obligations of Lessor and Lessee. Neither the execution
and delivery of the Assignment of Lease, nor any action or inaction on the part
of Agent shall impair or diminish any obligations of Lessor or Lessee under the
Lease Agreement or the Purchase Agreement, and shall not impose on Agent (or its
designee) any such obligations, nor shall it impose on Agent (or its designee) a
duty to produce Rents or cause Agent to be a mortgagee or pledgee in possession
for any purpose. Except as specifically set forth in this Consent, none of the
terms of the Assignment of Lease shall impose upon Lessee any greater
obligations than those set forth in the Lease Agreement, the Purchase Agreement
and the other Operative Documents.

        7. Partial Invalidity. If at any time any provision of this Consent is
or becomes illegal, invalid or unenforceable in any respect under the law of any
jurisdiction, neither the legality, validity or enforceability of the remaining
provisions of this Consent nor the legality, validity or enforceability of such
provision under the law of any other jurisdiction shall in any way be affected
or impaired thereby.

        8. Governing Law. This Consent shall be governed by and construed in
accordance with the laws of the State of California without reference to
conflicts of law rules.

                            [SIGNATURE PAGE FOLLOWS]




                                      B-3
   423

        IN WITNESS WHEREOF, Lessee has executed this Consent on the date set
forth above.

        LESSEE:                       KLA-TENCOR CORPORATION


                                      By: _____________________________
                                             Name: _______________________
                                             Title: ________________________


                                      B-4
   424


RECORDING REQUESTED BY AND
WHEN RECORDED RETURN TO:

Thomas Y. Coleman, Esq.
Orrick, Herrington & Sutcliffe LLP
Old Federal Reserve Bank Building
400 Sansome Street
San Francisco, California 94111


================================================================================

                          ASSIGNMENT OF LEASE AGREEMENT
                             AND PURCHASE AGREEMENT


                                       BY


                             LEASE PLAN U.S.A., INC.


                                   IN FAVOR OF


                               ABN AMRO BANK N.V.,
                          AS AGENT FOR THE PARTICIPANTS


                                NOVEMBER 12, 1997

================================================================================
   425
RECORDING REQUESTED BY
AND WHEN RECORDED, RETURN TO:

Orrick, Herrington & Sutcliffe
Old Federal Reserve Bank Building
400 Sansome Street
San Francisco, CA  94111
Attn:  James W. Miller, Esq.

- -------------------------------------------------------------------------------

                FIRST AMENDMENT TO ASSIGNMENT OF LEASE AGREEMENT
                             AND PURCHASE AGREEMENT

           THIS FIRST AMENDMENT TO ASSIGNMENT OF LEASE AGREEMENT AND PURCHASE
AGREEMENT (this "Amendment"), dated as of November 14, 1997, is entered into by
and between:

                        (1) LEASE PLAN U.S.A., INC., a Georgia corporation
                ("Lessor"); and

                        (2) ABN AMRO BANK N.V., as agent for the Participants
                under the Participation Agreement referred to in Recital A below
                (in such capacity, "Agent").

                                    RECITALS

           A. KLA-Tencor Corporation, a Delaware corporation ("Lessee"), Lessor,
each of the financial institutions listed in Schedule I to the Participation
Agreement (referred to below) (collectively, the "Participants"), and Agent, are
parties to a Participation Agreement dated as of November 12, 1997 (the
"Participation Agreement").

           B. Lessee and Lessor are parties to that certain Lease Agreement
dated as of November 12, 1997 and that certain Purchase Agreement dated as of
November 12, 1997.

           C. As security for the Lessor Obligations, Lessor has assigned all of
its estate, right, title and interest in the Lease Agreement and the Purchase
Agreement to Agent pursuant to that certain Assignment of Lease Agreement and
Purchase Agreement dated November 12, 1997, and recorded on November 12, 1997,
in the Official Records of Santa Clara County, California, as Document No.
13935262 (the "Assignment of Lease").

           D. Pursuant to the terms of the Participation Agreement, Lessee has
requested that Lessor acquire that certain real property described in Exhibit A
attached hereto (the "Tract 4 Land") and made a part hereof, and all
Improvements thereon.

           E. Lessee and Lessor have amended the Lease Agreement to add the
Tract 4 Land to the property under the Lease Agreement as provided in that
certain First Amendment to Lease Agreement, Construction Deed of Trust with
Assignment of Rents, Security Agreement and Fixture Filing dated as of November
12, 1997, to be recorded in the Official Records of Santa Clara County,
California prior to this Amendment.

   426
                                    AGREEMENT

           NOW, THEREFORE, in consideration of the above recitals and for other
good and valuable consideration, the receipt and adequacy of which are hereby
acknowledged, Lessor and Agent hereby agree as follows:

        1. DEFINITIONS, INTERPRETATION. All capitalized terms defined above and
elsewhere in this Amendment shall be used herein as so defined. Unless otherwise
defined herein, all other capitalized terms used herein shall have the
respective meanings given to those terms in Schedule 1.01 to the Participation
Agreement. The rules of construction set forth in Schedule 1.02 to the
Participation Agreement shall, to the extent not inconsistent with the terms of
this Amendment, apply to this Amendment and are hereby incorporated by
reference.

        2. AMENDMENT TO ASSIGNMENT OF LEASE. The Assignment of Lease is hereby
amended by adding to Exhibit A thereto the property description set forth in
Exhibit A to this Amendment. Without limiting the effect of such addition,
Lessor and Agent specifically acknowledge and agree that, on and after the date
hereof, (i) the terms "Land" and "Property" as defined in the Assignment of
Lease include the Tract 4 Land, and (ii) the terms "Lease Agreement" and
"Purchase Agreement" as used herein shall mean those documents as amended to
include the Tract 4 Land.

        3. EFFECT OF THIS AMENDMENT. On and after the date of this Amendment,
each reference in the Assignment of Lease and the other Operative Documents to
the Assignment of Lease shall mean the Assignment of Lease as amended hereby.
Except as specifically amended above, (a) the Assignment of Lease and the other
Operative Documents shall remain in full force and effect and are hereby
ratified and affirmed and (b) the execution, delivery and effectiveness of this
Amendment shall not, except as expressly provided herein, operate as a waiver of
any right, power, or remedy of Lessor, the Participants or Agent, nor constitute
a waiver of any provision of the Assignment of Lease or any other Operative
Document. 

        4. MISCELLANEOUS.

                     (a) Counterparts. This Amendment may be executed in any
           number of counterparts, each of which shall be deemed an original,
           but all of which taken together shall constitute one and the same
           instrument. The signature page and acknowledgment of any counterpart
           may be removed therefrom and attached to any other counterpart to
           evidence execution thereof by all of the parties hereto without
           affecting the validity thereof.

                     (b) Headings. Headings in this Amendment are for
           convenience of reference only and are not part of the substance
           hereof.

                     (c) Governing Law. This Amendment shall be governed by and
           construed in accordance with the laws of the State of California
           without reference to conflicts of law rules.

                                       2
   427

           IN WITNESS WHEREOF, Lessor and Agent have caused this Amendment to be
executed as of the day and year first above written.

LESSOR:                                   LEASE PLAN U.S.A., INC.



                                           By:_________________________________

                                                Name:__________________________

                                                Title:_________________________



AGENT:                                     ABN AMRO BANK N.V.



                                           By:_________________________________

                                                Name:__________________________

                                                Title:_________________________



                                           By:_________________________________

                                                Name:__________________________

                                                Title:_________________________



ACKNOWLEDGED AND AGREED:



LESSEE:                                    KLA-TENCOR CORPORATION



                                           By:_________________________________

                                                Name:__________________________

                                                Title:_________________________



                                       3
   428

 STATE OF                                                     )
          ____________________________________________________)
                                                              )
 COUNTY OF ___________________________________________________)


        On _____________, 1997 before me, _______________________, a Notary
Public in and for the State of California, personally appeared
_______________________________, personally known to me (or proved to me on the
basis of satisfactory evidence) to be the person(s) whose name(s) is/are
subscribed to the within instrument and acknowledged to me that he/she/they
executed the same in his/her/their authorized capacity(ies), and that by
his/her/their signature(s) on the instrument the person(s), or the entity upon
behalf of which the person(s) acted, executed the instrument.

                     WITNESS my hand and official seal.

                     [SEAL]

                                  --------------------------------------------

   429



 STATE OF                                                     )
          ____________________________________________________)
                                                              )
 COUNTY OF ___________________________________________________)


        On _____________, 1997 before me, _______________________, a Notary
Public in and for the State of California, personally appeared
_______________________________, personally known to me (or proved to me on the
basis of satisfactory evidence) to be the person(s) whose name(s) is/are
subscribed to the within instrument and acknowledged to me that he/she/they
executed the same in his/her/their authorized capacity(ies), and that by
his/her/their signature(s) on the instrument the person(s), or the entity upon
behalf of which the person(s) acted, executed the instrument.

                     WITNESS my hand and official seal.

                     [SEAL]

                                    ------------------------------------------

   430
 STATE OF                                                     )
          ____________________________________________________)
                                                              )
 COUNTY OF ___________________________________________________)


        On _____________, 1997 before me, _______________________, a Notary
Public in and for the State of California, personally appeared
_______________________________, personally known to me (or proved to me on the
basis of satisfactory evidence) to be the person(s) whose name(s) is/are
subscribed to the within instrument and acknowledged to me that he/she/they
executed the same in his/her/their authorized capacity(ies), and that by
his/her/their signature(s) on the instrument the person(s), or the entity upon
behalf of which the person(s) acted, executed the instrument.

                     WITNESS my hand and official seal.

                     [SEAL]

                                     -----------------------------------------


   431
                                    EXHIBIT A

                                  TRACT 4 LAND

        THAT CERTAIN REAL PROPERTY SITUATED IN THE COUNTY OF SANTA CLARA, STATE
OF CALIFORNIA, AND DESCRIBED AS FOLLOWS:



                                      A-1
   432

                               LESSEE'S CONSENT TO
              ASSIGNMENT OF LEASE AGREEMENT AND PURCHASE AGREEMENT

                                November 12, 1997

Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
135 So. LaSalle Street, Suite 711
Chicago, IL  60603

ABN AMRO Bank N.V.,
  as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY  10019

        1.     Reference is made to the following:

               (a) The Participation Agreement, dated as of November 12, 1997
        (the "Participation Agreement"), among KLA-Tencor Corporation
        ("Lessee"), Lease Plan U.S.A., Inc. ("Lessor"), the financial
        institutions listed in Schedule I to the Participation Agreement (the
        "Participants") and ABN AMRO Bank N.V., as agent for the Participants
        (in such capacity, "Agent");

               (b) The Lease Agreement, dated as of November 12, 1997 (the
        "Lease Agreement"), between Lessee and Lessor;

               (c) The Purchase Agreement, dated as of November 12, 1997 (the
        "Purchase Agreement"), between Lessee and Lessor; and

               (d) The Assignment of Lease Agreement and Purchase Agreement,
        dated as of November 12, 1997 (the "Assignment of Lease"), executed by
        Lessor in favor of Agent.

Unless otherwise indicated, all terms defined in the Participation Agreement
have the same respective meanings when used herein.

        2. Consent. Lessee hereby consents to the Assignment of Lease.

        3. Payments. Lessee agrees to pay and deliver to Agent (or its designee)
all Rents and other amounts payable by Lessee under the Lease Agreement and the
Purchase Agreement in accordance with the terms thereof. Lessee will not, for
any reason whatsoever, seek to recover from Agent (or its designee) any moneys
paid to Agent (or its designee) by virtue of the Assignment of Lease.

        4. Lessee's Other Agreements. Lessee hereby further agrees with Lessor
and Agent as follows:


   433

               (a) Lessee agrees (i) to deliver to Agent (or its designee) and
        Lessor, at their addresses set forth in the Participation Agreement or
        at such other addresses as Agent or Lessor, as the case may be, may
        designate, duplicate originals or copies of all notices, undertakings,
        demands, statements, documents and other communications which Lessee is
        required or permitted to deliver pursuant to the Lease Agreement, the
        Purchase Agreement or the Assignment of Lease; (ii) that any notice
        delivered or declaration made to Lessee by Agent (or its designee)
        pursuant to the Lease Agreement or the Purchase Agreement shall be
        effective as a notice given or declaration made to Lessee by Lessor;
        (iii) that Agent (or its designee) shall not by reason of the Assignment
        of Lease be subject to any liability or obligation under the Lease
        Agreement or the Purchase Agreement except as set forth in the
        Assignment of Lease; and (iv) that any waiver, consent or approval by
        Lessor under the Lease Agreement or the Purchase Agreement shall not be
        valid unless approved in writing by Agent (or its designee).

               (b) Lessee agrees to remain obligated under the Lease Agreement
        and the Purchase Agreement in accordance with their respective terms,
        and to take no action to terminate (other than in accordance with the
        terms thereof), annul, rescind or avoid the Lease Agreement, the
        Purchase Agreement or this Consent or to abate, reduce, offset, suspend
        or defer or make any counterclaim or raise any defense (other than the
        defense of payment to Agent (or its designee)) with respect to the Rents
        or other amounts payable thereunder or to cease paying such amounts to
        Agent (or its designee) as provided herein.

               (c) Lessee hereby agrees that upon the occurrence of any Event of
        Default, Agent (or its designee) shall have the right to deliver a
        notice of default under the Lease Agreement, which shall be effective
        for all purposes under the Lease Agreement as if sent by Lessor.

               (d) Lessee shall notify Agent (or its designee) at its address
        specified in the Participation Agreement, or such other address as Agent
        may designate, of any default by Lessor under the Lease Agreement and
        agrees that no such default shall entitle Lessee to terminate (other
        than in accordance with the terms of the Lease Agreement), annul,
        rescind or avoid the Lease Agreement or reduce or abate the Rents or
        other amounts payable thereunder.

        5. Amendment or Termination; Agent's Designation. Lessee agrees that it
will not, unilaterally or by agreement, subordinate, amend, supplement, modify,
extend (except in accordance with the express terms thereof), discharge, waive
or terminate (other than in accordance with the terms thereof) the Lease
Agreement, the Purchase Agreement or this Consent without Agent's prior written
consent, and that any attempted subordination, amendment, supplement,
modification, extension, discharge, waiver or termination in violation of this
Section 5 without such consent shall be null and void. In the event that the
Lease Agreement or the Purchase Agreement shall be amended or supplemented as
herein permitted, the Lease Agreement or the Purchase Agreement, as so amended
or supplemented, shall continue to be subject to the provisions of the
Assignment of Lease and this Consent without the necessity of any further act by
any of the parties thereto or hereto.


                                       2
   434

        6. Continuing Obligations of Lessor and Lessee. Neither the execution
and delivery of the Assignment of Lease, nor any action or inaction on the part
of Agent shall impair or diminish any obligations of Lessor or Lessee under the
Lease Agreement or the Purchase Agreement, and shall not impose on Agent (or its
designee) any such obligations, nor shall it impose on Agent (or its designee) a
duty to produce Rents or cause Agent to be a mortgagee or pledgee in possession
for any purpose. Except as specifically set forth in this Consent, none of the
terms of the Assignment of Lease shall impose upon Lessee any greater
obligations than those set forth in the Lease Agreement, the Purchase Agreement
and the other Operative Documents.

        7. Partial Invalidity. If at any time any provision of this Consent is
or becomes illegal, invalid or unenforceable in any respect under the law of any
jurisdiction, neither the legality, validity or enforceability of the remaining
provisions of this Consent nor the legality, validity or enforceability of such
provision under the law of any other jurisdiction shall in any way be affected
or impaired thereby.

        8. Governing Law. This Consent shall be governed by and construed in
accordance with the laws of the State of California without reference to
conflicts of law rules.



        IN WITNESS WHEREOF, Lessee has executed this Consent on the date set
forth above.

        LESSEE:                             KLA-TENCOR CORPORATION


                                            By:
                                               --------------------------------
                                               Name:
                                                    ---------------------------
                                               Title: 
                                                     --------------------------

   435
RECORDING REQUESTED BY
WHEN RECORDED RETURN TO:

Orrick, Herrington & Sutcliffe LLP
400 Sansome Street
San Francisco, California  94111
Attn:  Thomas Y. Coleman, Esq.

DOCUMENTARY TRANSFER TAX:

[The undersigned declare that the documentary transfer tax is $0.00 as Agreement
is a contract for the sale of real property.]

- --------------------------------------------------------------------------------

                        MEMORANDUM OF PURCHASE AGREEMENT

        By this Memorandum of Purchase Agreement, made November 12, 1997,
concurrently with that certain Purchase Agreement (the "Purchase Agreement")
dated as of November 12, 1997, by and between the parties hereto and covering
the property described in Exhibit A attached hereto and made a part hereof (the
"Property"), KLA-TENCOR CORPORATION, a Delaware corporation ("Lessee"), and
LEASE PLAN U.S.A., INC., a Georgia corporation ("Lessor") agree as follows:

        Lessor grants to Lessee the right to purchase the Property upon the
terms and subject to the conditions set forth in the Purchase Agreement.

        This instrument is a memorandum of the Purchase Agreement and is subject
to all of the terms, covenants and conditions provided in the unrecorded
Purchase Agreement and in no way modifies the provisions of the Purchase
Agreement. If the terms of this instrument are inconsistent with the terms of
the Purchase Agreement, the terms of the Purchase Agreement shall prevail. This
instrument may be executed in counterparts, each of which shall be deemed an
original, but all of which taken together shall constitute one and the same
instrument.

LESSEE:                              KLA-TENCOR CORPORATION


                                     By:
                                        ---------------------------------------
                                        Name: 
                                             ----------------------------------
                                        Title:
                                              ---------------------------------



LESSOR:                              LEASE PLAN U.S.A., INC.


                                     By:
                                        ---------------------------------------
                                        Name: 
                                             ----------------------------------
                                        Title:
                                              ---------------------------------


   436



                                    EXHIBIT A
                                    PROPERTY




                                       A-1
   437





STATE OF CALIFORNIA                 )
                                    )       ss
COUNTY OF                           )
          --------------------------)

        On _____________, 1997, before me, ___________________ a Notary Public
in and for the State of California, personally appeared _____________,
personally known to me (or proved to me on the basis of satisfactory evidence)
to be the person(s) whose name(s) is/are subscribed to the within instrument and
acknowledged to me that he/she/they executed the same in his/her/their
authorized capacity(ies), and that by his/her/their signature(s) on the
instrument the person(s) or the entity on behalf of which the person(s) acted,
executed the instrument.

               Witness my hand and official seal.




[SEAL]


                                                 ------------------------------
   438



STATE OF CALIFORNIA                 )
                                    )       ss
COUNTY OF                           )
         ---------------------------)

        On _____________, 1997, before me, ___________________ a Notary Public
in and for the State of California, personally appeared ______________,
personally known to me (or proved to me on the basis of satisfactory evidence)
to be the person(s) whose name(s) is/are subscribed to the within instrument and
acknowledged to me that he/she/they executed the same in his/her/their
authorized capacity(ies), and that by his/her/their signature(s) on the
instrument the person(s) or the entity on behalf of which the person(s) acted,
executed the instrument.

               Witness my hand and official seal.




[SEAL]


                                      -----------------------------------------


   439
                                LEASE AGREEMENT,
              CONSTRUCTION DEED OF TRUST WITH ASSIGNMENT OF RENTS,
                      SECURITY AGREEMENT AND FIXTURE FILING


        THIS LEASE AGREEMENT, CONSTRUCTION DEED OF TRUST WITH ASSIGNMENT OF
RENTS, SECURITY AGREEMENT AND FIXTURE FILING (this "Agreement" herein), dated as
of November 12, 1997 is entered into by and between:

                (1) KLA-TENCOR CORPORATION, a Delaware corporation ("Lessee");
        and

                (2) LEASE PLAN U.S.A., INC., a Georgia corporation, as lessor
        under this Agreement and as trustee under the deed of trust contained
        herein ("Lessor").

                                    RECITALS

        A. Lessee has requested Lessor and the financial institutions which are
"Participants" under the Participation Agreement referred to in Recital B below
(such financial institutions to be referred to collectively as the
"Participants") to provide to Lessee a certain lease facility. Pursuant to such
facility:

        (1) Lessor would (a) acquire certain property designated by Lessee
(either through purchase or lease), (b) lease to Lessee such property and
certain other property currently held by Lessor, (c) appoint Lessee as Lessor's
agent to make certain improvements to a portion of such property, (d) make
advances to finance such improvements and to pay certain related expenses, and
(e) grant to Lessee the right to purchase such property; and

        (2) The Participants would participate in such lease facility by (a)
funding the purchase prices and other advances to be made by Lessor and (b)
acquiring participation interests in the rental and certain other payments to be
made by Lessee.

        B. Pursuant to a Participation Agreement dated of even date herewith
(the "Participation Agreement") among Lessee, Lessor, the Participants and ABN
AMRO Bank N.V., as agent for the Participants (in such capacity, "Agent"),
Lessor and the Participants have agreed to provide such lease facility upon the
terms and subject to the conditions set forth therein, including without
limitation the execution and delivery of this Agreement setting forth the terms
of the lease by Lessor to Lessee of the property.


                                   AGREEMENT

        NOW, THEREFORE, in consideration of the above Recitals and the mutual
covenants herein contained, the parties hereto hereby agree as follows:


   440
SECTION 1.            INTERPRETATION.

        1.01. Definitions. Unless otherwise indicated in this Agreement or any
other Operative Document, each term set forth in Schedule 1.01 to the
Participation Agreement, when used in this Agreement or any other Operative
Document, shall have the respective meaning given to that term in such Schedule
1.01 or in the provision of this Agreement or other document, instrument or
agreement referenced in such Schedule 1.01.

        1.02. Rules of Construction. Unless otherwise indicated in this
Agreement or any other Operative Document, the rules of construction set forth
in Schedule 1.02 to the Participation Agreement shall apply to this Agreement
and the other Operative Documents. 

SECTION 2. BASIC PROVISIONS.

        2.01. Lease of the Property. Subject to the acquisition thereof by
Lessor pursuant to the Participation Agreement and applicable Acquisition
Agreements either as of the date hereof or during the term hereof, Lessor agrees
to lease to Lessee and Lessee agrees to lease from Lessor the following property
(the "Property") to the extent of Lessor's estate, right, title and interest
therein, thereto or thereunder:

                (a) All lots, pieces, tracts and parcels of land described in
        Exhibit A together with such additional parcels of real property as may
        be added to Exhibit A from time to time during the term hereof (the
        "Land");

                (b) All Improvements located on the Land;

                (c) All Appurtenant Rights belonging, relating or pertaining to
        any of the Land or Improvements;

                (d) All Related Goods (including those described in Exhibit B
        and in each Exhibit B Supplement), Related Permits and Related
        Agreements related to any of the foregoing Land, Improvements or
        Appurtenant Rights; and

                (e) All accessions and accretions to and replacements and
        substitutions for the foregoing.

(Lessee understands that Lessor's only interest in the Tract 3 Land is through
the Tract 3 Ground Lease Agreement and is a leasehold interest only.)

        2.02.         Term.

                (a) Original Term. The original term of this Agreement shall
        commence on the Closing Date (the "Commencement Date") and shall end on
        the first Business Day of 

                                       2
   441

        November, 2002 (such date as it may be extended pursuant to Subparagraph
        2.02(b) to be referred to as the "Scheduled Expiration Date").

                (b) Extensions. Lessee may request Lessor to extend the
        Scheduled Expiration Date in effect for an additional period of two (2)
        years, as provided in Subparagraph 2.09(b) of the Participation
        Agreement. If Lessor and each Participant consents to such a request in
        accordance with such provision, the definition of "Scheduled Expiration
        Date" set forth in Subparagraph 2.02(a) shall be deemed extended to the
        date which is the first business day of November, 2004. Lessee
        acknowledges that neither Lessor nor any Participant has any obligation
        or commitment (either express or implied) to extend, or consent to the
        extension of, the Scheduled Expiration Date at any time.

        2.03.         Rent.

               (a)    Base Rent.

                      (i) Lessee shall pay to Lessor as base rent hereunder
               ("Base Rent") for each Rental Period for each Portion of the
               Outstanding Lease Amount an amount equal to the product of (A)
               the Rental Rate for such Rental Period and Portion, times (B) the
               amount of such Portion on the first day of such Rental Period,
               times (C) a fraction, the numerator of which is the number of
               days in such Rental Period and the denominator of which is 360.
               If the Rental Rate shall change during any Rental Period, the
               Rental Rate for such Rental Period shall be the weighted average
               of the Rental Rates in effect from time to time during such
               Rental Period.

                      (ii) Lessee may select the number and amounts of the
               Portions into which the Outstanding Lease Amount is to be divided
               and the Rental Period for each such Portion by (y) setting forth
               in each Acquisition Advance Request delivered by Lessee pursuant
               to Subparagraph 2.03(a) of the Participation Agreement the
               Portions into which Advances initially are to be divided and the
               initial Rental Periods therefor and (z) delivering to Lessor at
               least three (3) Business Days prior to the last day of each
               Rental Period for a Portion an irrevocable written notice in the
               form of Exhibit C, appropriately completed (a "Notice of Rental
               Period Selection"), subject to the following:

                             (A) Each Portion shall be in the amount of
                      $5,000,000 or an integral multiple of $100,000 in excess
                      thereof; provided, however, that (1) during the Commitment
                      Period, all Improvement/Expense Advances made after the
                      Closing Date shall be combined as a single Portion (which
                      may be less than $5,000,000), (2) the total number of
                      Portions outstanding at any time shall not exceed four
                      (4), and (3) the Outstanding Lease Amount shall consist of
                      a single Portion in the amount of the Outstanding Lease
                      Amount if the Outstanding Lease Amount is less than
                      $5,000,000).

                             (B) The initial and each subsequent Rental Period
                      selected by Lessee for each Portion shall be one (1), two
                      (2), three (3), six (6) or 


                                       3
   442

                twelve (12) months; provided, however, that (1) the initial
                Rental Period for any Portion that is originated on an
                Acquisition Date that is not the first Business Day of a
                calendar month shall begin on such Acquisition Date and shall
                end on the first Business Day of the first calendar month
                immediately following the month in which such origination
                occurs, (2) every other Rental Period shall begin and end on the
                first Business Day of a calendar month, (3) during the
                Commitment Period, the Rental Period for the Portion consisting
                of all Improvement/Expense Advances made after the Closing Date
                shall be one (1) month, (4) no Rental Period shall end after the
                Scheduled Expiration Date, (5) no Rental Period shall be longer
                than one (1) month if a Default has occurred and is continuing
                on the date three (3) Business Days prior to the first day of
                such Rental Period and (6) each Rental Period after the initial
                Rental Period for any Portion for which Lessee fails to make a
                selection by delivering a Notice of Rental Period Selection in
                accordance with this clause (ii) shall be one (1) month.

        Lessee shall deliver each Notice of Rental Period Selection by
        first-class mail or facsimile as required by Subparagraph 2.02(a) and
        Paragraph 7.01 of the Participation Agreement; provided, however, that
        Lessee shall promptly deliver the original of any Notice of Rental
        Period Selection initially delivered by facsimile.

                (iii) The rental rate for each Rental Period for a Portion
        ("Rental Rate") shall be the LIBOR Rental Rate for such Rental Period
        and Portion, except as follows:

                        (A) The Rental Rates for the Rental Periods that begin
                on the Closing Date and on the Tract 4 Acquisition Date and end
                on December 1, 1997 shall be a rate agreed upon by Lessee and
                Lessor; or

                        (B) If any other Rental Period is less than seven (7)
                days, the Rental Rate for such Rental Period shall be the
                Alternate Rental Rate; or

                        (C) If the LIBOR Rental Rate is unavailable for any
                Rental Period pursuant to Subparagraph 2.12(a) or Subparagraph
                2.12(b) of the Participation Agreement, the Rental Rate for such
                Rental Period shall be the Alternate Rental Rate.

                (iv) Lessee shall pay Base Rent in arrears (A) for each Portion,
        on the last day of each Rental Period therefor and, in the case of any
        Rental Period which exceeds three (3) months, each day occurring every
        three (3) months after the first day of such Rental Period
        (individually, a "Scheduled Rent Payment Date") and (B) for all
        Portions, on the Expiration Date.

                (b) Supplemental Rent. Lessee shall pay as supplemental rent
        hereunder ("Supplemental Rent") all amounts (other than Base Rent, the
        purchase price payable by 


                                       4
   443

        Lessee for any purchase of the Property by Lessee pursuant to the
        Purchase Agreement and the Residual Value Guaranty Amount payable under
        the Purchase Agreement) payable by Lessee under this Agreement and the
        other Operative Documents. Lessee shall pay all Supplemental Rent
        amounts on the dates specified in this Agreement and the other Operative
        Documents for the payment of such amounts or, if no date is specified
        for the payment of any such amount, upon the demand of Lessor or any
        other Person to whom such amount is payable.

        2.04. Use. Lessee may use the Property for office, research and
development, warehouse and manufacturing purposes, and for any other purpose
which is in compliance with applicable zoning laws and ordinances for the
Property.

        2.05. "As Is" Lease. Lessee has conducted, or will conduct from time to
time with regard to property that may be added hereto after the date hereof, all
due diligence which it deems appropriate regarding the Property and agrees that
no Lessor Party has any obligation to conduct any such due diligence. Lessee is
leasing the Property "as is, with all faults" without any representation,
warranty, indemnity or undertaking by any Lessor Party regarding any aspect of
the Property, including (a) the condition of the Property (including any
Improvements to the Property made prior to the Commencement Date or during the
Term); (b) title to the Property (including possession of the Property by any
Person or the existence of any Lien or any other right, title or interest in or
to any of the Property in favor of any Person); (c) the value, habitability,
usability, design, operation or fitness for use of the Property; (d) the
availability or adequacy of utilities and other services to the Property; (e)
any latent, hidden or patent defect in the Property; (f) the zoning or status of
the Property or any other restrictions on the use of the Property; (g) the
economics of the Property; (h) any Casualty or Condemnation; or (i) the
compliance of the Property with any applicable Governmental Rule or Insurance
Requirement; provided, however, that Lessor shall be obligated to remove Lessor
Liens to the extent required in Subparagraph 5.04(b) of the Participation
Agreement. Without limiting the generality of the foregoing, Lessee specifically
waives any covenant of quiet enjoyment except as otherwise provided in
Subparagraph 5.04(b) of the Participation Agreement.

        2.06. Nature of Transaction. As more fully provided in Paragraph 2.10 of
the Participation Agreement, Lessee and the Lessor Parties intend that the
transaction evidenced by this Agreement and the other Operative Documents
constitute an operating lease in accordance with FASB 13 for accounting purposes
and a loan secured by the Property for all other purposes, including federal,
state and local income tax purposes and commercial, real estate and bankruptcy
law purposes.

        2.07. Security, Etc. In order to secure the Lessee Obligations and
otherwise to assure the Lessor Parties the benefits hereof in the event that the
transaction evidenced by this Agreement and the other Operative Documents is,
pursuant to the intent of Lessee and the Lessor Parties, treated as a loan for
certain purposes, Lessee hereby makes the following grants and agrees as
follows:

                (a) Real Property Security. As security for the Lessee
        Obligations, Lessee hereby irrevocably and unconditionally grants,
        conveys, transfers and assigns to Lessor, in trust for the benefit of
        the Lessor Parties, with power of sale and right of entry and


                                       5
   444
        possession, all estate, right, title and interest of Lessee in the
        following property, whether now owned or leased or hereafter acquired,
        (collectively, the "Real Property Collateral"):

                        (i) The Land;

                        (ii) All Improvements located on the Land;

                        (iii) All Appurtenant Rights belonging, relating or
                pertaining to any of the foregoing Land or Improvements;

                        (iv) All Subleases of and all Issues and Profits
                accruing from any of the foregoing Land, Improvements or
                Appurtenant Rights to the extent that such Subleases and Issues
                and Profits constitute real property;

                        (v) All Related Goods, Related Permits and Related
                Agreements related to any of the foregoing Land, Improvements or
                Appurtenant Rights to the extent that such Related Goods,
                Related Agreements and Related Permits constitute real property;

                        (vi) All other Property to the extent that such property
                constitutes real property; and

                        (vii) All proceeds of the foregoing, including Casualty
                and Condemnation Proceeds.

        (b) Personal Property Security. As security for the Lessee Obligations,
Lessee hereby irrevocably and unconditionally assigns and grants to Lessor, for
the benefit of the Lessor Parties, a security interest in all estate, right,
title and interest of Lessee in the following property, whether now owned or
leased or hereafter acquired, (collectively, the "Personal Property
Collateral"):

                (i) All Subleases of and all Issues and Profits accruing from
        any of the Land, Improvements or Appurtenant Rights to the extent that
        such Subleases and Issues and Profits constitute personal property;

                (ii) All Related Goods, Related Permits and Related Agreements
        related to any of the Land, Improvements or Appurtenant Rights to the
        extent that such Related Goods, Related Agreements and Related Permits
        constitute personal property;

                (iii) All Cash Collateral and all other deposit accounts,
        instruments, investment property and monies held by any Lessor Party in
        connection with this Agreement or any other Operative Document
        (including any Repair and Restoration Account);

                (iv) All other Property to the extent such Property constitutes
        personal property; and

                                       6
   445

                (v) All proceeds of the foregoing, including Casualty and
        Condemnation Proceeds.

        This Agreement constitutes a fixture filing for purposes of the
California Commercial Code with respect to the Related Goods which are or are to
become fixtures on the Land or Improvements.

        (c) Absolute Assignment of Subleases, Issues, and Profits. Lessee hereby
irrevocably assigns to Lessor, for the benefit of the Lessor Parties, all of
Lessee's estate, right, title and interest in, to and under the Subleases and
the Issues and Profits, whether now owned or hereafter acquired. This is a
present and absolute assignment, not an assignment for security purposes only,
and Lessor's right to the Subleases and Issues and Profits is not contingent
upon, and may be exercised without possession of, the Property.

                      (i) If no Event of Default has occurred and is continuing,
               Lessee shall have a revocable license to collect and retain the
               Issues and Profits as they become due. Upon the occurrence and
               during the continuance of an Event of Default, such license shall
               automatically terminate, and Lessor may collect and apply the
               Issues and Profits pursuant to Subparagraph 5.02(d) without
               further notice to Lessee or any other party and without taking
               possession of the Property. All Issues and Profits thereafter
               collected by Lessee shall be held by lessee as trustee in a
               constructive trust for the benefit of Lessor. Lessee hereby
               irrevocably authorizes and directs the sublessees under the
               Subleases, without any need on their part to inquire as to
               whether an Event of Default has actually occurred or is then
               existing, to rely upon and comply with any notice or demand by
               Lessor for the payment to Lessor of any rental or other sums
               which may become due under the Subleases or for the performance
               of any of the sublessees' undertakings under the Subleases.
               Collection of any Issues and Profits by Lessor shall not cure or
               waive any default or notice of default hereunder or invalidate
               any acts done pursuant to such notice.

                      (ii) The foregoing irrevocable assignment shall not cause
               any Lessor Party to be (A) a mortgagee in possession; (B)
               responsible or liable for (1) the control, care, management or
               repair of the Property or for performing any of Lessee's
               obligations or duties under the Subleases, (2) any waste
               committed on the Property by the sublessees under any of the
               Subleases or by any other Persons, (3) any dangerous or defective
               condition of the Property, or (4) any negligence in the
               management, upkeep, repair or control of the Property resulting
               in loss or injury or death to any sublessee, licensee, employee,
               invitee or other Person; or (C) responsible for or impose upon
               any Lessor Party any duty to produce rents or profits. No Lessor
               Party, in the absence of gross negligence or willful disregard on
               its part, shall be liable to Lessee as a consequence of (y) the
               exercise or failure to exercise any of the rights, remedies or
               powers granted to Lessor hereunder or (z) the failure or refusal
               of Lessor to perform or discharge any obligation, duty or
               liability of Lessee arising under the Subleases.


                                       7
   446
SECTION 3. OTHER LESSEE AND LESSOR RIGHTS AND OBLIGATIONS.

        3.01.  Maintenance, Repair, Etc.

               (a) General. Lessee shall not permit any waste of the Property,
        except for ordinary wear and tear, and shall, at its sole cost and
        expense, maintain the Property in good working order, mechanical
        condition and repair and make all necessary repairs thereto, of every
        kind and nature whatsoever, whether interior or exterior, ordinary or
        extraordinary, structural or nonstructural or foreseen or unforeseen, in
        each case as required by all applicable Governmental Rules and Insurance
        Requirements and on a basis consistent with the operation and
        maintenance of commercial properties comparable in type and location to
        the Property and in compliance with prudent industry practice.

                (b) New Improvements. Lessee shall make or cause to be made all
        of the New Improvements authorized and required by the Construction
        Agency Agreement in accordance with the Construction Agency Agreement.

                (c) Other Modifications. Lessee, at its sole cost and expense,
        may from time to time make alterations, renovations, improvements and
        additions to the Property and substitutions and replacements therefor
        (collectively, "Modifications") in addition to the New Improvements;
        provided that:

                        (i) No Modification impairs the value, utility or useful
                life of the Property or any part thereof from that which existed
                immediately prior to such Modification;

                        (ii) All Modifications are made expeditiously and, in
                all cases unless Lessee currently is exercising either the Term
                Purchase Option or the Expiration Date Purchase Option,
                completed not later than six (6) months prior to the Scheduled
                Expiration Date;

                        (iii) All Modifications are made in a good and
                workmanlike manner and in compliance with all applicable
                Governmental Rules and Insurance Requirements;

                        (iv) Subject to Paragraph 3.12 relating to permitted
                contests, Lessee pays all costs and expenses and discharges (or
                cause to be insured or bonded over) any Liens arising in
                connection with any Modification not later than the earlier of
                (A) sixty (60) days after the same shall be filed (or otherwise
                becomes effective) and (B) unless Lessee currently is exercising
                either the Term Purchase Option or the Expiration Date Purchase
                Option, six (6) months prior to the Scheduled Expiration Date;

                        (v) At least one (1) month prior to the commencement of
                (A) any Modifications which are anticipated to cost $2,500,000
                or more in the aggregate, or (B) any Modifications which cause
                the total of all Modifications undertaken during the previous
                twelve-month period to exceed an aggregate cost of 

                                       8
   447

                $5,000,000, Lessee shall deliver to Lessor, with sufficient
                copies for Agent and each Participant, a brief written
                description of such Modifications; and

                        (vi) All Modifications otherwise comply with this
                Agreement and the other Operative Documents.

                (d) Abandonment. Lessee shall not abandon the Property or any
        material portion thereof for any period in excess of thirty (30)
        consecutive days during the term hereof, except as a part of any New
        Improvements or Modifications as permitted herein or in the other
        Operative Documents.

        3.02. Risk of Loss. Lessee assumes all risks of loss arising from any
Casualty or Condemnation which arises or occurs prior to the Expiration Date or
while Lessee is in possession of the Property and all liability for all personal
injuries and deaths and damages to property suffered by any Person or property
on or in connection with the Property which arises or occurs prior to the
Expiration Date or while Lessee is in possession of the Property, except in each
case to the extent any such loss or liability is primarily caused by the gross
negligence or willful misconduct of a Lessor Party. Lessee hereby waives the
provisions of California Civil Code Sections 1932(1), 1932(2) and 1933(4), and
any and all other applicable existing or future Governmental Rules permitting
the termination of this Agreement as a result of any Casualty or Condemnation,
and Lessor shall in no event be answerable or accountable for any risk of loss
of or decrease in the enjoyment and beneficial use of the Property as a result
of any such event.

        3.03. Insurance.

                (a) Coverage. Lessee, at its sole cost and expense, shall carry
        and maintain the following insurance coverage:

                        (i) At all times during the Term, commercial liability
                insurance covering claims for injuries or death sustained by
                persons or damage to property while on the Property, and
                workers' compensation insurance;

                        (ii) At all times during the Term, property insurance
                covering loss or damage by fire, flood and other risks in an
                amount not less than the then current replacement cost of the
                Improvements on the Property;

                        (iii) During the construction of any Improvements,
                builders' risk insurance covering fire, flood and other normal
                insured risks; and

                        (iv) At all times during the Term as appropriate, such
                other insurance of the types customarily carried by a reasonably
                prudent Person owning or operating properties similar to the
                Property in the same geographic area as the Property;

        Provided, however, that this Subparagraph 3.03(a) (A) shall not be
        construed to require Lessee to carry or maintain earthquake insurance
        and (B) shall not require Lessee to carry or maintain flood insurance in
        an amount in excess of the amount required by any Governmental Rule
        applicable to Lessee or any Lessor Party. Except as otherwise


                                       9
   448

        specifically required above, such insurance shall be in amounts, in a
        form and with deductibles customarily carried by a reasonably prudent
        Person owning or operating properties similar to the Property in the
        same geographic area as the Property.

               (b) Carriers. Any insurance carried and maintained by Lessee
        pursuant to this Paragraph 3.03 shall be underwritten by an insurance
        company which (i) has, at the time such insurance is placed and at the
        time of each renewal thereof, a general policyholder rating of "A" and a
        financial rating of at least 9 from A.M. Best and Company or any
        successor thereto (or if there is none, an organization having a similar
        national reputation) or (ii) is otherwise approved by Lessor and
        Required Participants; provided, however, that Lessee may, if no Event
        of Default has occurred and is continuing, self-insure.

                (c) Terms. Each insurance policy maintained by Lessee pursuant
        to this Paragraph 3.03 shall provide as follows, whether through
        endorsements or otherwise:

                        (i) Lessor and Agent shall be named as additional
                insureds, in the case of each policy of liability and property
                insurance, and additional loss payees, in the case of each
                policy of property insurance.

                        (ii) In respect of the interests of Lessor in the
                policy, the insurance shall not be invalidated by any action or
                by inaction of Lessee or by any Person having temporary
                possession of the Property while under contract with Lessee to
                perform maintenance, repair, alteration or similar work on the
                Property, and shall insure the interests of Lessor regardless of
                any breach or violation of any warranty, declaration or
                condition contained in the insurance policy by Lessee, Lessor or
                any other additional insured (other than by such additional
                insured, as to such additional insured); provided, however, that
                the foregoing shall not be deemed to (A) cause such insurance
                policies to cover matters otherwise excluded from coverage by
                the terms of such policies or (B) require any insurance to
                remain in force notwithstanding non-payment of premiums except
                as provided in clause (iii) below.

                        (iii) If the insurance policy is cancelled for any
                reason whatsoever, or substantial change is made in the coverage
                that affects the interests of Lessor, or if the insurance
                coverage is allowed to lapse for non-payment of premium, such
                cancellation, change or lapse shall not be effective as to
                Lessor for thirty (30) days after receipt by Lessor of written
                notice from the insurers of such cancellation, change or lapse.

                        (iv) No Lessor Party shall have any obligation or
                liability for premiums, commissions, assessments, or calls in
                connection with the insurance.

                        (v) The insurer shall waive any rights of set-off or
                counterclaim or any other deduction, whether by attachment or
                otherwise, that it may have against any Lessor Party.

                                       10
   449
                        (vi) The insurance shall be primary without right of
                contribution from any other insurance that may be carried by any
                Lessor Party with respect to its interest in the Property.

                        (vii) The insurer shall waive any right of subrogation
                against any Lessor Party.

                        (viii) All provisions of the insurance, except the
                limits of liability, shall operate in the same manner as if
                there were a separate policy covering each insured party.

                        (ix) The insurance shall not be invalidated should
                Lessee or any Lessor Party waive, in writing, prior to a loss,
                any or all rights of recovery against any Person for losses
                covered by such policy, nor shall the insurance in favor of any
                Lessor Party or Lessee, as the case may be, or their respective
                rights under and interests in said policies be invalidated or
                reduced by any act or omission or negligence of any Lessee Party
                or Lessor, as the case may be, or any other Person having any
                interest in the Property.

                        (x) If the insurer has not received written notice from
                Lessor that an Event of Default has occurred and is continuing,
                (A) all insurance proceeds in respect of any loss or occurrence
                with a value of less than fifteen million Dollars ($15,000,000)
                shall be paid to and adjusted solely by Lessee and (B) all other
                insurance proceeds shall be paid to Lessor and adjusted jointly
                by Lessor and Lessee. From and after the date on which the
                insurer receives written notice from Lessor that an Event of
                Default has occurred and is continuing (and unless and until
                such insurer receives written notice from Lessor that all Events
                of Default have been cured), all losses shall be adjusted solely
                by, and all insurance proceeds shall be paid solely to, Lessor.

                        (xi) Each policy shall contain a standard form mortgage
                endorsement in favor of Lessor.

        (d) Evidence of Insurance. Lessee, at its sole cost and expense, shall
furnish to Lessor from time to time upon the request of Lessor such certificates
or other documents as Lessor may reasonably request to evidence Lessee's
compliance with the insurance requirements set forth in this Paragraph 3.03.

        (e) Release of Lessor Parties. Lessee hereby waives, releases and
discharges each Lessor Party and its directors, officers, employees, agents and
advisors from all claims whatsoever arising out of any loss, claim, expense or
damage to or destruction covered or coverable by insurance required under this
Paragraph 3.03 to the extent the policies for such insurance permit such waiver,
notwithstanding that such loss, claim, expense or damage may have been caused by
any such Person, and, as among Lessee and such Persons, Lessee agrees to look to
the insurance coverage only in the event of such loss.


                                       11
   450


3.04. Casualty and Condemnation.

        (a) Notice. Lessee shall give Lessor prompt written notice of the
occurrence of any Casualty affecting, or the institution of any proceedings for
the Condemnation of, the Property or any portion thereof.

        (b) Repair or Purchase Option. After the occurrence of any Casualty or
Condemnation affecting the Property or any portion thereof, Lessee shall either
(i) repair and restore the Property as required by Subparagraph 3.04(c) or (ii)
exercise the Term Purchase Option and purchase the Property pursuant to the
Purchase Agreement; provided, however, that Lessee may not elect to repair and
restore the Property if such casualty or condemnation is a Major Casualty or
Major Condemnation or if an Event of Default has occurred and is continuing,
unless Lessor and the Required Participants shall consent in writing. Not later
than one (1) month after the occurrence of any Casualty or Condemnation, Lessee
shall deliver to Lessor a written notice indicating whether it elects to repair
and restore or purchase the Property

        (c) Repair and Restoration. If Lessee elects to repair and restore the
Property following any Casualty or Condemnation, Lessee shall diligently proceed
to repair and restore the Property to the condition in which it existed
immediately prior to such Casualty or Condemnation and shall use reasonable
efforts to complete all such repairs and restoration as soon as reasonably
practicable, but not later than six (6) months prior to the Scheduled Expiration
Date unless Lessee currently is exercising either the Term Purchase Option or
the Expiration Date Purchase Option,. Lessee shall use its own funds to make
such repairs and restoration, except to the extent any Casualty and Condemnation
Proceeds are available and are released to Lessee for such purpose pursuant to
Subparagraph 3.04(f). Lessee's exercise of the repair and restoration option
shall, if Lessor or Required Participants direct, be subject to satisfaction of
the following conditions within one (1) month after the occurrence of the
Casualty or Condemnation:

                (i) Deposit in a deposit account acceptable to and controlled by
        Lessor (a "Repair and Restoration Account") of funds (including any
        Casualty and Condemnation Proceeds which are available and are released
        to Lessee pursuant to Subparagraph 3.04(f)) in the amount which Lessor
        determines is needed to complete and fully pay all costs of the repair
        or restoration (including taxes, financing charges, insurance and rent
        during the repair period);

                (ii) The establishment of an arrangement for lien releases and
        disbursement of funds acceptable to Lessor and in a manner and upon such
        terms and conditions as would be required by a prudent interim
        construction lender; and

                (iii) The delivery to Lessor of the following, each in form and
        substance acceptable to Lessor;

                        (A) Evidence that the Property can, in Lessor's
                reasonable judgment, with diligent restoration or repair, be
                returned to a condition at least equal to the condition thereof
                that existed prior to the Casualty or 

                                       12
   451

                partial Condemnation causing the loss or damage within the
                earlier to occur of (A) six (6) months after the occurrence of
                the Casualty or Condemnation and (B) unless Lessee currently is
                exercising either the Term Purchase Option or the Expiration
                Date Purchase Option, six (6) months prior to the Scheduled
                Expiration Date;

                        (B) Evidence that all necessary governmental approvals
                can be timely obtained to allow the rebuilding and reoccupancy
                of the Property;

                        (C) Copies of all plans and specifications for the work;

                        (D) Copies of all contracts for the work, signed by a
                contractor reasonably acceptable to Lessor;

                        (E) A cost breakdown for the work;

                        (F) A payment and performance bond for the work or other
                security satisfactory to Lender;

                        (G) Evidence that, upon completion of the work, the
                size, capacity and total value of the Property will be at least
                as great as it was before the Casualty or Condemnation occurred;
                and

                        (H) Evidence of satisfaction of any additional
                conditions that Lessor or Required Participants may reasonably
                establish to protect their rights under this Agreement and the
                other Operative Documents.

        All plans and specifications for the work must be reasonably acceptable
        to Lessor, except that Lessor's approval shall not be required if the
        restoration work is based on the same plans and specifications as were
        originally used to construct the Property. To the extent that the funds
        in a Repair and Restoration Account include both Casualty and
        Condemnation Proceeds and other funds deposited by Lessee, the other
        funds deposited by Lessee shall be used first. Lessee acknowledges that
        the specific conditions described above are reasonable.

        (d) Prosecution of Claims for Casualty and Condemnation Proceeds. Lessee
shall proceed promptly and diligently to prosecute in good faith the settlement
or compromise of any and all claims for Casualty and Condemnation Proceeds;
provided, however, that any settlement or compromise of any such claim shall,
except as otherwise provided in clause (x) of Subparagraph 3.03(c), be subject
to the written consent of Lessor and Required Participants, which consents shall
not be unreasonably withheld. Lessor may participate in any proceedings relating
to such claims, and, after the occurrence and during the continuance of any
Event of Default, Lessor is hereby authorized, in its own name or in Lessee's
name, to adjust any loss covered by insurance or any Casualty or Condemnation
claim or cause of action, and to settle or compromise any claim or cause of
action in connection therewith, and Lessee shall from time to time deliver to
Lessor any and all further assignments and other instruments required to permit
such participation.

                                       13
   452

        (e) Assignment of Casualty and Condemnation Proceeds. Lessee hereby
absolutely and irrevocably assigns to Lessor all Casualty and Condemnation
Proceeds and all claims relating thereto. Except as otherwise provided in clause
(x) of Subparagraph 3.03(c), Lessee agrees that all Casualty and Condemnation
Proceeds are to be paid to Lessor and Lessee hereby authorizes and directs any
insurer, Governmental Authority or other Person responsible for paying any
Casualty and Condemnation Proceeds to make payment thereof directly to Lessor
alone, and not to Lessor and Lessee jointly. If Lessee receives any Casualty and
Condemnation Proceeds payable to Lessor hereunder, Lessee shall promptly pay
over such Casualty and Condemnation Proceeds to Lessor. Lessee hereby covenants
that until such Casualty and Condemnation Proceeds are so paid over to Lessor,
Lessee shall hold such Casualty and Condemnation Proceeds in trust for the
benefit of Lessor and shall not commingle such Casualty and Condemnation
Proceeds with any other funds or assets of Lessee or any other Person. Except as
otherwise provided in clause (x) of Subparagraph 3.03(c), Lessor may commence,
appear in, defend or prosecute any assigned right, claim or action, and may
adjust, compromise, settle and collect all rights, claims and actions assigned
to Lessor, but shall not be responsible for any failure to collect any such
right, claim or action, regardless of the cause of the failure.

        (f) Use of Casualty and Condemnation Proceeds.

                (i) If (A) no Event of Default has occurred and is continuing,
        (B) Lessee exercises the repair and restoration option pursuant to
        Subparagraphs 3.04(b) and 3.04(c) and (C) Lessee complies with any
        conditions imposed pursuant to Subparagraph 3.04(c); then Lessor shall
        release any Casualty and Condemnation Proceeds to Lessee for repair or
        restoration of the Property, but may condition such release and use of
        the Casualty and Condemnation Proceeds upon deposit of the Casualty and
        Condemnation Proceeds in a Repair and Restoration Account. Lessor shall
        have the option, upon the completion of such restoration of the
        Property, to apply any surplus Casualty and Condemnation Proceeds
        remaining after the completion of such restoration to the payment of
        Rent and/or the reduction of the Outstanding Lease Amount,
        notwithstanding that such amounts are not then due and payable or that
        such amounts are otherwise adequately secured.

                (ii) If (A) an Event of Default has occurred and is continuing,
        (B) Lessee fails to or is unable to comply with any conditions imposed
        pursuant to Subparagraph 3.04(c) or (C) Lessee elects to exercise the
        Term Purchase Option and purchase the Property pursuant to the Purchase
        Agreement; then, at the absolute discretion of Lessor and the Required
        Participants, regardless of any impairment of security or lack of
        impairment of security, but subject to applicable Governmental Rules
        governing use of Casualty and Condemnation Proceeds, if any, Lessor may
        (1) apply all or any of the Casualty and Condemnation Proceeds it
        receives to the expenses of Lessor Parties in obtaining such proceeds;
        (2) apply the balance to the payment of Rent and/or the reduction of the
        Outstanding Lease Amount, notwithstanding that such amounts are not then
        due and payable or that such amounts are otherwise adequately secured
        and/or (3) release all or any part

                                       14
   453

        of such proceeds to Lessee upon any conditions Lessor and the Required
        Participants may elect.

                (iii) Lessor shall apply any Casualty and Condemnation Proceeds
        which are to be used to reduce the Outstanding Lease Amount only on the
        last day of a Rental Period unless a Default has occurred and is
        continuing.

                (iv) Application of all or any portion of the Casualty and
        Condemnation Proceeds, or the release thereof to Lessee, shall not cure
        or waive any Default or notice of default or invalidate any acts done
        pursuant to such notice.

        3.05. Taxes. Subject to Paragraph 3.12 relating to permitted contests,
Lessee shall promptly pay when due all Indemnified Taxes imposed on or payable
by Lessee or any Lessor Party in connection with the Property, this Agreement or
any of the other Operative Documents, or any of the transactions contemplated
hereby or thereby. As promptly as possible after any Indemnified Taxes are
payable by Lessee, Lessee shall send to Lessor for the account of the applicable
Lessor Party a certified copy of an original official receipt received by Lessee
showing payment thereof. If Lessee fails to pay any such Indemnified Taxes when
due to the appropriate taxing authority or fails to remit to Lessor the required
receipts or other required documentary evidence, Lessee shall indemnify the
Lessor Parties for any incremental taxes, interest or penalties that may become
payable by the Lessor Parties as a result of any such failure. The obligations
of Lessee under this Paragraph 3.05 shall survive the payment and performance of
the Lessee Obligations and the termination of this Agreement.

        3.06. Environmental Matters.

               (a) Lessee's Covenants. Lessee shall not cause or permit
        Hazardous Materials to be used, generated, manufactured, stored,
        treated, disposed of, transported or present on or released or
        discharged from the Property in any manner that is reasonably likely to
        have a Material Adverse Effect. Lessee may use Hazardous Materials in
        connection with the operation of its business (or the business of
        permitted subtenants) so long as such use is consistent with the
        preceding sentence. Lessee shall immediately notify Lessor in writing of
        (i) the discovery of any Hazardous Materials on, under or about the
        Property; (ii) any knowledge by Lessee that the Property does not comply
        with any Environmental Laws; (iii) any claims against Lessee or the
        Property relating to Hazardous Materials or pursuant to Environmental
        Laws; and (iv) the discovery of any occurrence or condition on any real
        property adjoining or in the vicinity of the Property that could cause
        the Property or any part thereof to be designated as "border zone
        property" under the provisions of California Health and Safety Code
        Sections 25220 et seq. or any regulation adopted in accordance
        therewith. In response to the presence of any Hazardous Materials on,
        under or about the Property, Lessee shall immediately take, at Lessee's
        sole expense, all remedial action required by any Environmental Laws or
        any judgment, consent decree, settlement or compromise in respect to any
        claim based thereon.

                                       15
   454

                (b) Inspection By Lessor. Upon reasonable prior notice to
        Lessee, Lessor, its employees and agents, may from time to time (whether
        before or after the commencement of a nonjudicial or judicial
        foreclosure proceeding), enter and inspect the Property for the purpose
        of determining the existence, location, nature and magnitude of any past
        or present release or threatened release of any Hazardous Materials
        into, onto, beneath or from the Property.

               (c) Indemnity. Without in any way limiting any other indemnity
        contained in this Agreement or any other Operative Document, Lessee
        agrees to defend, indemnify and hold harmless the Lessor Parties and the
        other Indemnitees from and against any claim, loss, damage, cost,
        expense or liability directly or indirectly arising out of (i) the use,
        generation, manufacture, storage, treatment, release, threatened
        release, discharge, disposal, transportation or presence of any
        Hazardous Materials which are found in, on, under or about the Property
        or (ii) the breach of any covenant, representation or warranty of Lessee
        relating to Hazardous Materials or Environmental Laws contained in this
        Agreement or any Operative Document. This indemnity shall include (A)
        the costs, whether foreseeable or unforeseeable, of any investigation,
        repair, cleanup or detoxification of the Property which is required by
        any Governmental Authority or is otherwise necessary to render the
        Property in compliance with all Environmental Laws; (B) all other direct
        or indirect consequential damages (including any third party claims,
        claims by any Governmental Authority, or any fines or penalties against
        the Indemnitees; and (C) all court costs and attorneys' fees (including
        expert witness fees and the cost of any consultants) paid or incurred by
        the Indemnitees. Lessee shall pay immediately upon Lessor's demand any
        amounts owing under this indemnity. Lessee shall use legal counsel
        reasonably acceptable to Lessor in any action or proceeding arising
        under this indemnity. The obligations of Lessee under this Subparagraph
        3.06(c) shall survive the payment and performance of the Lessee
        Obligations and the termination of this Agreement.

               (d) Legal Effect of Section. Lessee and Lessor agree that (i)
        this Paragraph 3.06 and clause (i) of Subparagraph 4.01(s) of the
        Participation Agreement are intended as Lessor's written request for
        information (and Lessee's response) concerning the environmental
        condition of the real property security as required by California Code
        of Civil Procedure Section 726.5 and (ii) each representation and
        warranty and covenant herein and therein (together with any indemnity
        applicable to a breach of any such representation and warranty) with
        respect to the environmental condition of the Property is intended by
        Lessor and Lessee to be an "environmental provision" for purposes of
        California Code of Civil Procedure Section 736.

        3.07.         Liens, Easements, Etc.

                (a) Lessee's Covenants. Subject to Paragraph 3.12 relating to
        permitted contests, Lessee shall not create, incur, assume or permit to
        exist any Lien or easement on or with respect to any of the Property of
        any character, whether now owned or hereafter acquired, except for the
        following ("Permitted Property Liens"):

                        (i) Liens in favor of a Lessor Party securing the Lessee
                Obligations;

                                       16
   455

                        (ii) Liens and easements in existence on the
                Commencement Date to the extent reflected in the title insurance
                policies delivered to Agent pursuant to Paragraphs 3.01 and 3.02
                of and Schedules 3.01 and 3.02 to the Participation Agreement
                and approved by Lessor;

                        (iii) Liens and easements approved by Lessor and
                reflected in the title insurance policy or policies or binders
                to be delivered in connection with any Land added hereto after
                the date hereof;

                        (iv) Liens for taxes or other Governmental Charges not
                at the time delinquent or thereafter payable without penalty;

                        (v) Liens of carriers, warehousemen, mechanics,
                materialmen and vendors and other similar Liens imposed by law
                incurred in the ordinary course of business for sums not
                overdue; and

                        (vi) Lessor Liens.

                Subject to Paragraph 3.12 relating to permitted contests, Lessee
        shall promptly (A) pay all Indebtedness of Lessee and other obligations
        prior to the time the non-payment thereof would give rise to a Lien on
        the Property and (B) discharge, at its sole cost and expense, any Lien
        on the Property which is not a Permitted Property Lien.

                (b) No Consents. Nothing contained in this Agreement shall be
        construed as constituting the consent or request of any Lessor Party,
        express or implied, to or for the performance by any contractor,
        mechanic, laborer, materialman, supplier or vendor of any labor or
        services or for the furnishing of any materials for any construction,
        alteration, addition, repair or demolition of or to the Property or any
        part thereof. NOTICE IS HEREBY GIVEN THAT NO LESSOR PARTY IS OR SHALL BE
        LIABLE FOR ANY LABOR, SERVICES OR MATERIALS FURNISHED OR TO BE FURNISHED
        TO LESSEE, OR TO ANYONE HOLDING THE PROPERTY OR ANY PART THEREOF THROUGH
        OR UNDER LESSEE, AND THAT NO MECHANIC'S OR OTHER LIENS FOR ANY SUCH
        LABOR, SERVICES OR MATERIALS SHALL ATTACH TO OR AFFECT THE INTEREST OF
        ANY LESSOR PARTY IN AND TO THE PROPERTY.

        3.08. Subletting. Lessee may, in the ordinary course of business,
sublease the Property or any portion thereof to any Person, provided, that (a)
Lessee remains directly and primarily liable for performing its obligations
under this Agreement and all other Lessee Obligations; (b) each sublease is
subject to and subordinated to this Agreement; (c) each sublease has a term
which expires on or prior to the Scheduled Expiration Date (or, if longer,
includes a provision that the sublease terminates on the Expiration Date if such
Expiration Date occurs prior to the Scheduled Expiration Date unless Lessee
purchases the Property on the Expiration Date pursuant to the Purchase
Agreement); (d) each sublease prohibits the sublessee from engaging in any
activities on the Property other than those permitted by Paragraph 2.04; and (e)
no sublease has a Material Adverse Effect. Any sublease which does not satisfy
each of the requirements of the immediately preceding sentence shall be null and
void as to the Lessor Parties and their

                                       17
   456

successor and assigns. Except for such permitted subleases, Lessee shall not
assign any of its rights or interests under this Agreement to any other Person.

        3.09. Utility Charges. Lessee shall pay all charges for electricity,
power, gas, oil, water, telephone, sanitary sewer service and all other
utilities and services to, on or in connection with the Property during the
Term.

        3.10. Removal of Property. Lessee shall not remove any Improvements from
the Land or any other Property from the Land or Improvements, except that,
during the Term, Lessee may remove any Modification or any trade fixture,
machinery, equipment, inventory or other personal property if such Modification
or property (a) was not financed by an Advance, (b) is not required by any
applicable Governmental Rule or Insurance Requirement and (c) is readily
removable without impairing the value, utility or remaining useful life of the
Property.

        3.11. Compliance with Governmental Rules and Insurance Requirements.
Lessee, at its sole cost and expense, shall, unless its failure is not
reasonably likely to have a Material Adverse Effect, (a) comply, and cause its
agents, sublessees, assignees, employees, invitees, licensees, contractors and
tenants, and the Property to comply, with all Governmental Rules and Insurance
Requirements relating to the Property (including the construction, use,
operation, maintenance, repair and restoration thereof, whether or not
compliance therewith shall require structural or extraordinary changes in the
Improvements or interfere with the use and enjoyment of the Property), and (b)
procure, maintain and comply with all licenses, permits, orders, approvals,
consents and other authorizations required for the construction, use,
maintenance and operation of the Property and for the use, operation,
maintenance, repair and restoration of the Improvements.

        3.12. Permitted Contests. Lessee, at its sole cost and expense, may
contest any alleged Lien or easement on any of the Property or any alleged
Governmental Charge, Indebtedness or other obligation which is payable by Lessee
hereunder to Persons other than the Lessor Parties or which, if unpaid, would
give rise to a Lien on any of the Property, provided that (a) each such contest
is diligently pursued in good faith by appropriate proceedings; (b) the
commencement and continuation of such proceedings suspends the enforcement of
such Lien or easement or the collection of such Governmental Charge,
Indebtedness or obligation; (c) Lessee has established adequate reserves for the
discharge of such Lien or easement or the payment of such Governmental Charge,
Indebtedness or obligation in accordance with GAAP and, if the failure to
discharge such Lien or easement or the failure to pay such Governmental Charge,
Indebtedness or obligation might result in any civil liability for any Lessor
Party, Lessee has provided to such Lessor Party a bond or other security
satisfactory to such Lessor Party; (d) the failure to discharge such Lien or
easement or the failure to pay such Governmental Charge, Indebtedness or
obligation could not result in any criminal liability for any Lessor Party; (e)
the failure to discharge such Lien or easement or the failure to pay such
Governmental Charge, Indebtedness or obligation is not otherwise reasonably
likely to have a Material Adverse Effect; and (f) unless Lessee currently is
exercising either the Term Purchase Option or the Expiration Date Purchase
Option, any such contest is completed and such Lien or easement is discharged
(either pursuant to such proceedings or otherwise) or such Governmental Charge,
Indebtedness or obligation is declared invalid, paid or otherwise satisfied not
later than six (6) months prior to the Scheduled Expiration Date.

                                       18
   457

        3.13. Lessor Obligations; Right to Perform Lessee Obligations. No Lessor
Party shall have any obligation to (a) maintain, repair or make any improvements
to the Property, (b) maintain any insurance on the Property, (c) perform any
other obligation of Lessee under this Agreement or any other Lessee Obligation,
(d) make any expenditure on account of the Property (except to make Advances as
required by the Participation Agreement) or (e) take any other action in
connection with the Property, this Agreement or any other Operative Document,
except as expressly provided herein or in another Operative Document; provided
however, that Lessor may, in its sole discretion and without any obligation to
do so, perform any Lessee Obligation not performed by Lessee when required.
Lessor may enter the Property or exercise any other right of Lessee under this
Agreement or any other Operative Document to the extent Lessor determines in
good faith that such entry or exercise is reasonably necessary for Lessor to
perform any such Lessee Obligation not performed by Lessee when required. Lessee
shall reimburse Lessor and the other Lessor Parties, within five (5) Business
Days after demand, for all fees, costs and expenses incurred by them in
performing any such obligation or curing any Default.

        3.14. Inspection Rights. During the Term, Lessee shall permit any Person
designated by Lessor, upon reasonable notice and during normal business hours,
to visit and inspect any of the Property.

SECTION 4.  EXPIRATION DATE.

        4.01. Termination by Lessee Prior to Scheduled Expiration Date. Subject
to the terms and conditions of the Purchase Agreement, Lessee may, at any time
prior to the Scheduled Expiration Date, terminate this Agreement and purchase
the Property pursuant to Section 2 of the Purchase Agreement. Lessee shall
notify Lessor of Lessee's election so to terminate this Agreement and purchase
the Property by delivering to Agent a Notice of Term Purchase Option Exercise
pursuant to and in accordance with the provisions of Paragraph 2.01 of the
Purchase Agreement.

        4.02. Surrender of Property. Unless Lessee purchases the Property on the
Expiration Date pursuant to the Purchase Agreement, Lessee shall vacate and
surrender the Property to Lessor on the Expiration Date in its then-current
condition, subject to compliance by Lessee on or prior to such date of its
obligations under this Agreement and the other Operative Documents (including
the completion of the New Improvements and all Modifications, the completion of
all permitted contests and the removal of all Liens which are not Permitted
Property Liens of the types described in clauses (i), (ii), (iii), (iv) and (vi)
of Subparagraph 3.07(a)).

        4.03. Holding Over. If Lessee does not purchase the Property on the
Expiration Date pursuant to the Purchase Agreement but continues in possession
of any portion of the Property after the Expiration Date, Lessee shall pay rent
for each day it so continues in possession, payable upon demand of Lessor, at a
per annum rate equal to the Alternate Rental Rate plus two percent (2.0%) and
shall pay and perform all of its other Lessee Obligations under this Agreement
and the other Operative Documents in the same manner as though the Term had not
ended; provided, however, that this Paragraph 4.03 shall not be interpreted to
permit such holding over or to limit any right or remedy of Lessor for such
holding over.


                                       19
   458
SECTION 5.    DEFAULT.

        5.01. Events of Default. The occurrence or existence of any one or more
of the following shall constitute an "Event of Default" hereunder:

               (a) Non-Payment. Lessee shall (i) fail to pay on the Expiration
        Date any amount payable by Lessee under this Agreement or any other
        Operative Document on or prior to such date, (ii) fail to pay within
        five (5) business days after any Scheduled Rent Payment Date any Base
        Rent payable on such Scheduled Rent Payment Date (other than the Base
        Rent payable on the Expiration Date) or (iii) fail to pay within thirty
        (30) days after the same becomes due, any Supplemental Rent or other
        amount required under the terms of this Agreement or any other Operative
        Document (other than any such amount payable on the Expiration Date or
        Base Rent); or

                (b) Specific Defaults. Lessee or any of its Subsidiaries shall
        fail to observe or perform any covenant, obligation, condition or
        agreement set forth in Subparagraph 3.01(d) hereof or in Paragraph 5.02
        or Paragraph 5.03 of the Participation Agreement; or

               (c) Other Defaults. Lessee or any of its Subsidiaries shall fail
        to observe or perform any other covenant, obligation, condition or
        agreement contained in this Agreement or any other Operative Document
        and such failure shall continue for a period of thirty (30) days after
        written notice thereof from Lessor; provided, however, that, if such
        failure cannot reasonably be cured within such thirty (30) day period,
        such failure shall not constitute an Event of Default hereunder if
        Lessee (i) promptly commences to cure such failure within such thirty
        (30) day period, (ii) thereafter diligently pursues such cure to
        completion, and (iii) completes such cure not later than the earlier of
        (A) the Expiration Date, if Lessee is exercising the Marketing Option,
        and (B) one hundred and twenty days (120) days after Lessor's notice of
        such failure; or

                (d) Representations and Warranties. Any representation,
        warranty, certificate, information or other statement (financial or
        otherwise) made or furnished by or on behalf of Lessee or any of its
        Subsidiaries to any Lessor Party in or in connection with this Agreement
        or any other Operative Document, or as an inducement to any Lessor Party
        to enter into this Agreement or any other Operative Document, shall be
        false, incorrect, incomplete or misleading in any material respect when
        made or furnished; or

               (e) Cross-Default. (i) Lessee or any of its Subsidiaries shall
        fail to make any payment when due on account of any Indebtedness of such
        Person (other than the Lessee Obligations and trade payables) and such
        failure shall continue beyond any period of grace provided with respect
        thereto, if the amount of such Indebtedness exceeds $40,000,000 or the
        effect of such failure is to cause, or permit the holder or holders
        thereof to cause, Indebtedness of Lessee and its Subsidiaries (other
        than the Lessee Obligations) in an aggregate amount exceeding
        $40,000,000 to become due or (ii) Lessee or any of its Subsidiaries
        shall otherwise fail to observe or perform any agreement, term or
        condition contained in any agreement or instrument relating to any
        Indebtedness of such Person (other than the Lessee Obligations and trade
        payables), or any other event shall occur or condition shall exist, if
        the effect of such failure, event or condition is to 

                                       20
   459

        cause, or permit the holder or holders thereof to cause, Indebtedness of
        Lessee and its Subsidiaries (other than the Lessee Obligations) in an
        aggregate amount exceeding $40,000,000 to become due (and/or to be
        secured by cash collateral); or

               (f) Insolvency, Voluntary Proceedings. Lessee or any of its
        Material Subsidiaries shall (i) apply for or consent to the appointment
        of a receiver, trustee, liquidator or custodian of itself or of all or a
        substantial part of its property, (ii) be unable, or admit in writing
        its inability, to pay its debts generally as they mature, (iii) make a
        general assignment for the benefit of its or any of its creditors, (iv)
        be dissolved or liquidated in full or in part, (v) become insolvent (as
        such term may be defined or interpreted under any applicable statute),
        (vi) commence a voluntary case or other proceeding seeking liquidation,
        reorganization or other relief with respect to itself or its debts under
        any bankruptcy, insolvency or other similar law now or hereafter in
        effect or consent to any such relief or to the appointment of or taking
        possession of its property by any official in an involuntary case or
        other proceeding commenced against it, or (vi) take any action for the
        purpose of effecting any of the foregoing; or

               (g) Involuntary Proceedings. Proceedings for the appointment of a
        receiver, trustee, liquidator or custodian of Lessee or any of its
        Material Subsidiaries or of all or a substantial part of the property
        thereof, or an involuntary case or other proceedings seeking
        liquidation, reorganization or other relief with respect to Lessee or
        any of its Material Subsidiaries or the debts thereof under any
        bankruptcy, insolvency or other similar law now or hereafter in effect
        shall be commenced and an order for relief entered or such proceeding
        shall not be dismissed or discharged within thirty (30) days of
        commencement; or

               (h) Judgments. (i) One or more judgments, orders, decrees or
        arbitration awards requiring Lessee and/or its Subsidiaries to pay an
        aggregate amount of $40,000,000 or more (exclusive of amounts covered by
        insurance issued by an insurer not an Affiliate of Lessee and otherwise
        satisfying the requirements set forth in Subparagraph 3.03(b)) shall be
        rendered against Lessee and/or any of its Subsidiaries in connection
        with any single or related series of transactions, incidents or
        circumstances and the same shall not be satisfied, vacated or stayed for
        a period of thirty (30) consecutive days after issue or levy; (ii) any
        judgment, writ, assessment, warrant of attachment, tax lien or execution
        or similar process shall be issued or levied against a substantial part
        of the property of Lessee or any of its Subsidiaries and the same shall
        not be released, stayed, vacated or otherwise dismissed within thirty
        (30) days after issue or levy; or (iii) any other judgments, orders,
        decrees, arbitration awards, writs, assessments, warrants of attachment,
        tax liens or executions or similar processes which, alone or in the
        aggregate, are reasonably likely to have a Material Adverse Effect are
        rendered, issued or levied; or

                (i) Operative Documents. Any Operative Document or any material
        term thereof shall cease to be, or be asserted by Lessee or any of its
        Subsidiaries not to be, a legal, valid and binding obligation of Lessee
        or any of its Subsidiaries enforceable in accordance with its terms; or

                                       21
   460

                (j) ERISA. Any Reportable Event which constitutes grounds for
        the termination of any Employee Benefit Plan by the PBGC or for the
        appointment of a trustee by the PBGC to administer any Employee Benefit
        Plan shall occur, or any Employee Benefit Plan shall be terminated
        within the meaning of Title IV of ERISA or a trustee shall be appointed
        by the PBGC to administer any Employee Benefit Plan; or

                (k) Major Casualty or Condemnation. Any Major Casualty or Major
        Condemnation affecting the Property shall occur; or

               (l) Change of Control. Any Change of Control shall occur;

Provided, however, that any such Event of Default (except any Event of Default
under Subparagraph 5.01(f) or Subparagraph 5.01(g)) shall be deemed cured and
shall cease to be an Event of Default hereunder if, prior to the time any Lessor
Party begins to exercise any of its rights and remedies for an Event of Default
under the Operative Documents, Lessee delivers to Lessor:

               (A) In the case of any Event of Default occurring under
        Subparagraph 5.01(e), written evidence that the Persons owing the
        applicable Indebtedness have made the required payment in the case of a
        failure to pay and, in all cases (including failure to pay), all holders
        of such Indebtedness have waived (without the payment by the Persons
        owing such Indebtedness of any waiver fee, penalty or other similar
        payment or the provision by such Persons of additional collateral) such
        holders' rights to cause such Indebtedness to become due (and/or to be
        secured by cash collateral); and

                (B) In the case of all other Events of Default (except Events of
        Default under Subparagraph 5.01(f) or Subparagraph 5.01(g)), written
        evidence that such Events of Default have been cured.

        5.02. General Remedies. In all cases, upon the occurrence or existence
of any Event of Default and at any time thereafter unless such Event of Default
is waived, Lessor may, with the consent of the Required Participants, or shall,
upon instructions from the Required Participants, exercise any one or more of
the following rights and remedies (except that the remedy set forth in the first
sentence of Subparagraph 5.02(a) shall be automatic):

               (a) Termination of Commitments. If such Event of Default is an
        Event of Default of the type described in Subparagraph 5.01(f) or
        Subparagraph 5.01(g) affecting Lessee, immediately and without notice
        the obligation of Lessor to make Advances and the obligations of the
        Participants to fund Advances shall automatically terminate. If such
        Event of Default is any other Event of Default, Lessor may by written
        notice to Lessee, terminate the obligation of Lessor to make Advances
        and the obligations of the Participants to fund Advances.

                (b) Appointment of a Receiver. Lessor may apply to any court of
        competent jurisdiction for, and obtain appointment of, a receiver for
        the Property.

                                       22
   461

                (c) Specific Performance. Lessor may bring an action in any
        court of competent jurisdiction to obtain specific enforcement of any of
        the covenants or agreements of Lessee in this Agreement or any of the
        other Operative Documents.

                (d) Collection of Issues and Profits. Lessor may collect Issues
        and Profits as provided in Subparagraph 2.07(c) and apply the proceeds
        to pay Lessee Obligations.

               (e) Protection of Property. Lessor may enter, take possession of,
        manage and operate all or any part of the Property or take any other
        actions which it reasonably determines are necessary to protect the
        Property and the rights and remedies of the Lessor Parties under this
        Agreement and the other Operative Documents, including (i) taking and
        possessing all of Lessee's books and records relating to the Property;
        (ii) entering into, enforcing, modifying, or canceling subleases on such
        terms and conditions as Lessor may consider proper; (iii) obtaining and
        evicting tenants; (iv) fixing or modifying sublease rents; (v)
        collecting and receiving any payment of money owing to Lessee; (vi)
        completing any unfinished Improvements; and/or (vii) contracting for and
        making repairs and alterations.

                (f) Other Rights and Remedies. In addition to the specific
        rights and remedies set forth above in this Paragraph 5.02 and in
        Paragraph 5.03 and Paragraph 5.04, Lessor may exercise any other right,
        power or remedy permitted to it by any applicable Governmental Rule,
        either by suit in equity or by action at law, or both.

        5.03. Lease Remedies. If the transaction evidenced by this Agreement and
the other Operative Documents is treated as a lease, upon the occurrence or
existence of any Event of Default and at any time thereafter unless such Event
of Default is waived, Lessor may, with the consent of the Required Participants,
or shall, upon instructions from the Required Participants, exercise any one or
more of the following rights and remedies in addition to those rights and
remedies set forth in Paragraph 5.02:

               (a) Termination of Lease. Lessor may, by written notice to
        Lessee, terminate this Agreement on a Termination Date which is prior to
        the Scheduled Expiration Date, subject to Subparagraph 3.02(1) of the
        Purchase Agreement. Such Termination Date shall be the last day of a
        Rental Period unless Required Participants shall otherwise direct. On
        such Termination Date (which shall then be the Expiration Date), Lessee
        shall pay all unpaid Base Rent accrued through such date, all
        Supplemental Rent due and payable on or prior to such date and all other
        amounts payable by Lessee on the Expiration Date pursuant to this
        Agreement and the other Operative Documents. Lessee also shall pay to
        Lessor, in addition to all accrued Base Rent, the worth at the time of
        such payment of the amount by which the unpaid Base Rent through the
        Scheduled Expiration Date exceeds the amount of such rental loss for the
        same period that Lessee proves could reasonably be avoided.

                (b) Continuation of Lease. Lessor may exercise the rights and
        remedies provided by California Civil Code Section 1951.4, including the
        right to continue this Agreement in effect after Lessee's breach and
        abandonment and recover Rent as it becomes due. Acts of maintenance or
        preservation, efforts to relet the Property, the 

                                       23
   462

        appointment of a receiver upon Lessor's initiative to protect its
        interest under this Agreement or withholding consent to or terminating a
        sublease shall not of themselves constitute a termination of Lessee's
        right to possession.

                (c) Removal and Storage of Property. Lessor may enter the
        Property and remove therefrom all Persons and property, store such
        property in a public warehouse or elsewhere at the cost of and for the
        account of Lessee and sell such property and apply the proceeds
        therefrom pursuant to applicable California law.

        5.04. Loan Remedies. If the transaction evidenced by this Agreement and
the other Operative Documents is treated as a loan, upon the occurrence or
existence of any Event of Default and at any time thereafter unless such Event
of Default is waived, Lessor may, with the consent of the Required Participants,
or shall, upon instructions from the Required Participants, exercise any one or
more of the following rights and remedies in addition to those rights and
remedies set forth in Paragraph 5.02:

                (a) Acceleration of Lessee Obligations. Lessor may, by written
        notice to Lessee, terminate this Agreement on a Termination Date which
        is prior to the Scheduled Expiration Date, subject to Subparagraph
        3.02(1) of the Purchase Agreement, and declare all unpaid Lessee
        Obligations due and payable on such Termination Date. Such Termination
        Date shall be the last day of a Rental Period unless Required
        Participants shall otherwise direct. On such Termination Date (which
        shall then be the Expiration Date), Lessee shall pay all unpaid Base
        Rent accrued through such date, all Supplemental Rent due and payable on
        or prior to such date and all other amounts payable by Lessee on the
        Expiration Date pursuant to this Agreement and the other Operative
        Documents.

                (b) Uniform Commercial Code Remedies. Lessor may exercise any or
        all of the remedies granted to a secured party under the California
        Uniform Commercial Code.

                (c) Judicial Foreclosure. Lessor may bring an action in any
        court of competent jurisdiction to foreclose the security interest in
        the Property granted to Lessor by this Agreement or any of the other
        Operative Documents.

                (d) Power of Sale. Lessor may cause some or all of the Property,
        including any Personal Property Collateral, to be sold under a power of
        sale or otherwise disposed of in any combination and in any manner
        permitted by applicable Governmental Rules.

                      (i) Sales of Personal Property. Lessor may dispose of any
               Personal Property Collateral separately from the sale of Real
               Property Collateral, in any manner permitted by Division 9 of the
               California Uniform Commercial Code, including any public or
               private sale, or in any manner permitted by any other applicable
               Governmental Rule. Any proceeds of any such disposition shall not
               cure any Event of Default or reinstate any Lessee Obligation for
               purposes of Section 2924c of the California Civil Code. In
               connection with any such sale or other disposition, Lessee agrees
               that the following procedures constitute a commercially
               reasonable sale:

                                       24
   463

                                (A) Lessor shall mail written notice of the sale
                        to Lessee not later than thirty (30) days prior to such
                        sale.

                                (B) Once per week during the three (3) weeks
                        immediately preceding such sale, Lessor will publish
                        notice of the sale in a local daily newspaper of general
                        circulation.

                                (C) Upon receipt of any written request, Lessor
                        will make the Property available to any bona fide
                        prospective purchaser for inspection during reasonable
                        business hours.

                                (D) Notwithstanding, Lessor shall be under no
                        obligation to consummate a sale if, in its judgment,
                        none of the offers received by it equals the fair value
                        of the Property offered for sale.

                                (E) If Lessor so requests, Lessee shall assemble
                        all of the Personal Property Collateral and make it
                        available to Lessor at the site of the Land. Regardless
                        of any provision of this Agreement or any other
                        Operative Document, Lessor shall not be considered to
                        have accepted any property other than cash or
                        immediately available funds in satisfaction of any
                        Lessee Obligation, unless Lessor has given express
                        written notice of its election of that remedy in
                        accordance with California Uniform Commercial Code
                        Section 9505.

               The foregoing procedures do not constitute the only procedures
               that may be commercially reasonable.

                      (ii) Lessor's Sales of Real Property or Mixed Collateral.
               Lessor may choose to dispose of some or all of the Property which
               consists solely of Real Property Collateral in any manner then
               permitted by applicable Governmental Rules, including without
               limitation a nonjudicial trustee's sale pursuant to California
               Civil Code ss.ss. 2924 et seq. In its discretion, Lessor may also
               or alternatively choose to dispose of some or all of the
               Property, in any combination consisting of both Real Property
               Collateral and Personal Property Collateral, together in one sale
               to be held in accordance with the law and procedures applicable
               to real property, as permitted by Section 9501(4) of the
               California Uniform Commercial Code. Lessee agrees that such a
               sale of Personal Property Collateral together with Real Property
               Collateral constitutes a commercially reasonable sale of the
               Personal Property Collateral. (For purposes of this power of
               sale, either a sale of Real Property Collateral alone, or a sale
               of both Real Property Collateral and Personal Property Collateral
               together in accordance with California Uniform Commercial Code
               Section 9501(4), will sometimes be referred to as a "Lessor's
               Sale.")

                        (A) Before any Lessor's Sale, Lessor shall give such
                notice of default and election to sell as may then be required
                by applicable Governmental Rules.

                                       25
   464

                        (B) When all time periods then legally mandated have
                expired, and after such notice of sale as may then be legally
                required has been given, Lessor shall sell the property being
                sold at a public auction to be held at the time and place
                specified in the notice of sale.

                        (C) Neither Lessor nor Agent shall have any obligation
                to make demand on Lessee before any Lessor's Sale.

                        (D) From time to time in accordance with then applicable
                law, Lessor may postpone any Lessor's Sale by public
                announcement at the time and place noticed for that sale.

                        (E) At any Lessor's Sale, Lessor shall sell to the
                highest bidder at public auction for cash in lawful money of the
                United States.

                        (F) Lessor shall execute and deliver to the purchaser(s)
                a deed or deeds conveying the Property being sold without any
                covenant or warranty whatsoever, express or implied. The
                recitals in any such deed of any matters or facts, including any
                facts bearing upon the regularity or validity of any Lessor's
                Sale, shall be conclusive proof of their truthfulness. Any such
                deed shall be conclusive against all Persons as to the facts
                recited in it.

                (e) Foreclosure Sales.

                        (i) Single or Multiple. If the Property consists of more
                than one lot, parcel or item of property, Lessor may:

                                (A) Designate the order in which the lots,
                        parcels and/or items shall be sold or disposed of or
                        offered for sale or disposition; and

                                (B) Elect to dispose of the lots, parcels and/or
                        items through a single consolidated sale or disposition
                        to be held or made under the power of sale granted in
                        Subparagraph 5.04(d), or in connection with judicial
                        proceedings, or by virtue of a judgment and decree of
                        foreclosure and sale; or through two or more such sales
                        or dispositions; or in any other manner Lessor may deem
                        to be in its best interests (any such sale or
                        disposition, a "Foreclosure Sale;" any two or more, "
                        Foreclosure Sales").

               If Lessor chooses to have more than one Foreclosure Sale, Lessor
               at its option may cause the Foreclosure Sales to be held
               simultaneously or successively, on the same day, or on such
               different days and at such different times and in such order as
               it may deem to be in its best interests. No Foreclosure Sale
               shall terminate or affect the security interests granted to
               Lessor in the Property by this Agreement on any part of the
               Property which has not been sold, until all of the Lessee
               Obligations have been paid in full.

                                       26
   465

                (ii) Credit Bids. At any Foreclosure Sale, any Person, including
        any Lessor Party, may bid for and acquire the Property or any part of it
        to the extent permitted by then applicable Governmental Rules. Instead
        of paying cash for that property, Lessor may settle for the purchase
        price by crediting the sales price of the Property against the Lessee
        Obligations in any order and proportions as Lessor in its sole
        discretion may choose.

        5.05. Remedies Cumulative. The rights and remedies of Lessor under this
Agreement and the other Operative Documents are cumulative and may be exercised
singularly, successively, or together.

        5.06. No Cure or Waiver. Neither the performance by Lessor of any of
Lessee's obligations pursuant to Paragraph 3.13 nor the exercise by Lessor of
any of its other rights and remedies under this Agreement or any other Operative
Document (including the collection of Issues and Profits and the application
thereof to the Lessee Obligations) shall constitute a cure or waiver of any
Default or nullify the effect of any notice of default or sale, unless and until
all Lessee Obligations are paid in full.

        5.07. Exercise of Rights and Remedies. The rights and remedies provided
to Lessor under this Agreement may be exercised by Lessor itself, by Agent
pursuant to Subparagraph 2.02(c) of the Participation Agreement, by a
court-appointed receiver or by any other Person appointed by any of the
foregoing to act on its behalf. All of the benefits afforded to Lessor under
this Agreement and the other Operative Documents shall accrue to the benefit of
Agent to the extent provided in Subparagraph 2.02(c) of the Participation
Agreement.


SECTION 6.    MISCELLANEOUS.

        6.01. Notices. Except as otherwise specified herein, all notices,
requests, demands, consents, instructions or other communications to or upon
Lessee or Lessor under this Agreement shall be given as provided in Subparagraph
2.02(c) and Paragraph 7.01 of the Participation Agreement.

        6.02. Waivers; Amendments. Any term, covenant, agreement or condition of
this Agreement may be amended or waived only as provided in the Participation
Agreement. No failure or delay by any Lessor Party in exercising any right
hereunder shall operate as a waiver thereof or of any other right nor shall any
single or partial exercise of any such right preclude any other further exercise
thereof or of any other right. Unless otherwise specified in any such waiver or
consent, a waiver or consent given hereunder shall be effective only in the
specific instance and for the specific purpose for which given.

        6.03. Successors and Assigns. This Agreement shall be binding upon and
inure to the benefit of the Lessor Parties and Lessee and their permitted
successors and assigns; provided, however, that the Lessor Parties and Lessee
shall not sell, assign or delegate their respective rights and obligations
hereunder except as provided in the Participation Agreement.

                                       27
   466

        6.04. No Third Party Rights. Nothing expressed in or to be implied from
this Agreement is intended to give, or shall be construed to give, any Person,
other than the Lessor Parties and Lessee and their permitted successors and
assigns, any benefit or legal or equitable right, remedy or claim under or by
virtue of this Agreement or under or by virtue of any provision herein.

        6.05. Partial Invalidity. If at any time any provision of this Agreement
is or becomes illegal, invalid or unenforceable in any respect under the law or
any jurisdiction, neither the legality, validity or enforceability of the
remaining provisions of this Agreement nor the legality, validity or
enforceability of such provision under the law of any other jurisdiction shall
in any way be affected or impaired thereby.

        6.06. Governing Law. This Agreement shall be governed by and construed
in accordance with the laws of the State of California without reference to
conflicts of law rules.

        6.07. Counterparts. This Agreement may be executed in any number of
identical counterparts, any set of which signed by all the parties hereto shall
be deemed to constitute a complete, executed original for all purposes.

        6.08. Nature of Lessee's Obligations.

        (a) Independent Obligation. The obligation of Lessee to pay the amounts
payable by Lessee under this Agreement and the other Operative Documents and to
perform the other Lessee Obligation are absolute, unconditional and irrevocable
obligations which are separate and independent of the obligations of the Lessor
Parties under this Agreement and the other Operative Documents and all other
events and circumstances, including the events and circumstances set forth in
Subparagraph 6.08(c).

        (b) No Termination or Abatement. This Agreement and the other Operative
Documents and Lessee's obligation to pay Rent and to pay and perform all other
Lessee Obligations shall continue in full force and effect without abatement
notwithstanding the occurrence or existence of any event or circumstance,
including any event or circumstance set forth in Subparagraph 6.08(c).

       (c) Full Payment and Performance. Lessee shall make all payments under
this Agreement and the other Operative Documents in the full amounts and at the
times required by the terms of this Agreement and the other Operative Documents
without setoff, deduction or reduction of any kind and shall perform all other
Lessee Obligations as and when required, without regard to any event or
circumstances whatsoever, including (i) the condition of the Property (including
any Improvements to the Property made prior to the Commencement Date or during
the Term); (ii) title to the Property (including possession of the Property by
any Person or the existence of any Lien or any other right, title or interest in
or to any of the Property in favor of any Person); (iii) the value,
habitability, usability, design, operation or fitness for use of the Property;
(iv) the availability or adequacy of utilities and other services to the
Property; (v) any latent, hidden or patent defect in the Property; (vi) the
zoning or status of the Property or any other restrictions on the use of the
Property; (g) the economics of the Property; (vii) any Casualty or Condemnation;
(viii) the compliance of the Property with any applicable Governmental Rule 

                                       28
   467

or Insurance Requirement; (ix) any failure by any Lessor Party to perform any of
its obligations under this Agreement or any other Operative Document; or (x) the
exercise by any Lessor Party of any of its remedies under this Agreement or any
other Operative Document; provided however, that this Paragraph 6.08 shall not
abrogate any right which Lessee may have to recover damages from any Lessor
Party for any material breach by such Lessor Party of its obligations under this
Agreement or any other Operative Document to the extent permitted hereunder or
thereunder.


                         [The signature page follows.]


                                       29
   468

        IN WITNESS WHEREOF, Lessee and Lessor have caused this Agreement to be
executed as of the day and year first above written.

LESSEE:                                            KLA-TENCOR CORPORATION

                                                   By:_________________________
                                                       Name:___________________
                                                       Title:__________________

LESSOR:                                            LEASE PLAN U.S.A., INC.

                                                   By:_________________________
                                                       Name:___________________
                                                       Title:__________________


                                       30
   469

STATE OF CALIFORNIA ________________)
                                    )ss
COUNTY OF __________________________)


        On _____________, 1997, before me, ___________________ a Notary Public
in and for the State of California, personally appeared ______________,
personally known to me (or proved to me on the basis of satisfactory evidence)
to be the person(s) whose name(s) is/are subscribed to the within instrument and
acknowledged to me that he/she/they executed the same in his/her/their
authorized capacity(ies), and that by his/her/their signature(s) on the
instrument the person(s) or the entity on behalf of which the person(s) acted,
executed the instrument.


               Witness my hand and official seal.




[SEAL]

        ....................................

   470



STATE OF CALIFORNIA ________________)
                                    )ss
COUNTY OF __________________________)


        On _____________, 1997, before me, ___________________ a Notary Public
in and for the State of California, personally appeared ____________, personally
known to me (or proved to me on the basis of satisfactory evidence) to be the
person(s) whose name(s) is/are subscribed to the within instrument and
acknowledged to me that he/she/they executed the same in his/her/their
authorized capacity(ies), and that by his/her/their signature(s) on the
instrument the person(s) or the entity on behalf of which the person(s) acted,
executed the instrument.

               Witness my hand and official seal.




[SEAL]

        ....................................

   471
                                    EXHIBIT A

                                      LAND


                                      A-1
   472
                                   EXHIBIT B

                                 RELATED GOODS



               The personal property, among other goods, conveyed by BNP Leasing
Corporation to Lease Plan U.S.A., Inc. by Bill of Sale, Assignment of Contract
Rights and Intangible Assets dated as of November 12, 1997 with respect to Tract
2 and Tract 3.




                                       B-1
   473
                                  EXHIBIT B(1)

                   SUPPLEMENT TO EXHIBIT B TO LEASE AGREEMENT


                                     [Date]


Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
      as Agent
Capital Markets-Syndication Group
1325 Avenue of the Americas, 9th Floor
New York, NY 10019
Attn: Linda Boardman


        1. Reference is made to that certain Lease Agreement, dated as of
November 12, 1997 (the "Lease Agreement"), between KLA-Tencor Corporation
("Lessee") and Lease Plan U.S.A., Inc. ("Lessor").

        2. Lessee hereby agrees that the description of "Related Goods" set
forth in Exhibit B to the Lease Agreement shall be supplemented by adding
thereto the Related Goods described in Attachment 1 hereto. Lessee hereby
accepts all such Related Goods and agrees that such Related Goods constitute
part of the Property subject to the Lease Agreement.

        IN WITNESS WHEREOF, Lessee has executed this Supplement to Exhibit B on
the date set forth above.

LESSEE:                                            KLA-TENCOR CORPORATION
                                                   By:_________________________
                                                       Name:___________________
                                                       Title:__________________






                                     B(1)-1
   474
                                  ATTACHMENT 1
                                       TO
                             SUPPLEMENT TO EXHIBIT B



                                   B(1)(1)-1
   475
                                    EXHIBIT C

                       NOTICE OF RENTAL PERIOD SELECTION


                                     [Date]

Lease Plan U.S.A., Inc.
c/o ABN AMRO Bank N.V.
      as Agent
Capital Markets-Syndications Group
1325 Avenue of the Americas, 9th Floor
New York, NY  10019
Attn:  Linda Boardman

        1. Reference is made to that certain Participation Agreement, dated as
of November 12,1997 (the "Participation Agreement"), among KLA-Tencor
Corporation ("Lessee"), Lease Plan U.S.A., Inc. ("Lessor"), the financial
institutions listed in Schedule I to the Participation Agreement (the
"Participants") and ABN AMRO Bank N.V., as agent for the Participants (in such
capacity, "Agent"). Unless otherwise indicated, all terms defined in the
Participation Agreement have the same respective meanings when used herein.

        2.     [Insert one of the following as appropriate]

               [Pursuant to Subparagraph 2.03(a) of the Lease Agreement, Lessee
hereby irrevocably selects a new Rental Period for a Portion of the Outstanding
Lease Amount as follows:

        (a) The Portion for which a new Rental Period is to be selected is the
Portion in the amount of $__________ with a current Rental Period which began on
________, ____ and ends on __________, ____; and

        (b) The next Rental Period for such Portion shall be __________
month[s].]

               [Pursuant to Subparagraph 2.03(a) of the Lease Agreement, Lessee
hereby irrevocably elects to divide a Portion of the Outstanding Lease Amount
into further Portions as follows:

        (a) The Portion which is to be divided is the Portion in the amount of
$__________ with a current Rental Period which began on ________, ____ and ends
on __________, ____; and

        (b) On the last day of the current Rental Period for such Portion, such
Portion is to be divided into the following Portions with the following initial
Rental Periods:

                                      C-1
   476




                      ___Portion___                       __Rental Period__
                      -------------                       ------------------
                                                      
                      $___________                        _______ month[s]
                      $___________                        _______ month[s]
                      $___________                        _______ month[s]
                      $___________                        _______ month[s]]


               [Pursuant to Subparagraph 2.03(a) of the Lease Agreement, Lessee
hereby irrevocably elects to combine into a single Portion certain Portions of
the Outstanding Lease Amount as follows:

                (a) The Portions which are to be combined are the Portions in
        the amounts of $__________, $_________ and $_______, each with a current
        Rental Period which ends on __________, ____; and

                (b) The initial Rental Period for such newly created Portion
        shall be __________ month[s].]

        3. Lessee hereby certifies to the Lessor Parties that, on the date of
this Acquisition Request and after giving effect to the use of the requested
Acquisition Advance[s] as described above:

                (a) The representations and warranties of Lessee set forth in
        Paragraph 4.01 of the Participation Agreement and in the other Operative
        Documents are true and correct in all material respects as if made on
        such date (except for representations and warranties expressly made as
        of a specified date, which shall be true as of such date);

                (b) No Default has occurred and is continuing; and

                (c) All of the Operative Documents are in full force and effect.

        IN WITNESS WHEREOF, Lessee has executed this Acquisition Request on the
date set forth above.

                                            KLA-TENCOR CORPORATION

                                      By: _____________________________
                                             Name: _______________________
                                             Title: ________________________




                                            C-2


   477
Recording requested by and                                       EXECUTION COPY 
when recorded return to:

Thomas Y. Coleman, Esq.
Orrick, Herrington & Sutcliffe
Old Federal Reserve Bank Building
400 Sansome Street
San Francisco, California  94111

================================================================================



                                LEASE AGREEMENT,

              CONSTRUCTION DEED OF TRUST WITH ASSIGNMENT OF RENTS,

                      SECURITY AGREEMENT AND FIXTURE FILING


                                     BETWEEN


                             KLA-TENCOR CORPORATION


                                       AND


                             LEASE PLAN U.S.A., INC.





                                NOVEMBER 12, 1997



================================================================================


                    THIS LEASE IS NOT INTENDED TO CONSTITUTE
                      A TRUE LEASE FOR INCOME TAX PURPOSES
                              (SEE PARAGRAPH 2.06)




   478



                                TABLE OF CONTENTS
                                                                                   PAGE

                                                                               
SECTION 1.                INTERPRETATION..............................................2

           1.01.     Definitions......................................................2

           1.02.     Rules of Construction............................................2

SECTION 2.                BASIC PROVISIONS............................................2

           2.01.     Lease of the Property............................................2

           2.02.     Term.............................................................2

           2.03.     Rent.............................................................3

           2.04.     Use..............................................................5

           2.05.     "As Is" Lease....................................................5

           2.06.     Nature of Transaction............................................5

           2.07.     Security, Etc....................................................5

SECTION 3.                OTHER LESSEE AND LESSOR RIGHTS AND OBLIGATIONS..............8

           3.01.     Maintenance, Repair, Etc.........................................8

           3.02.     Risk of Loss.....................................................9

           3.03.     Insurance........................................................9

           3.04.     Casualty and Condemnation.......................................12

           3.05.     Taxes...........................................................15

           3.06.     Environmental Matters...........................................15

           3.07.     Liens, Easements, Etc...........................................16

           3.08.     Subletting......................................................17

           3.09.     Utility Charges.................................................18

           3.10.     Removal of Property.............................................18

           3.11.     Compliance with Governmental Rules and Insurance Requirements...18

           3.12.     Permitted Contests..............................................18

           3.13.     Lessor Obligations; Right to Perform Lessee Obligations.........19

           3.14.     Inspection Rights...............................................19

SECTION 4.                EXPIRATION DATE............................................19

           4.01.     Termination by Lessee Prior to Scheduled Expiration Date........19

           4.02.     Surrender of Property...........................................19

           4.03.     Holding Over....................................................19

SECTION 5.                DEFAULT....................................................20


                                      -i-
   479

                                                                               
           5.01.     Events of Default...............................................20

           5.02.     General Remedies................................................22

           5.03.     Lease Remedies..................................................23

           5.04.     Loan Remedies...................................................24

           5.05.     Remedies Cumulative.............................................27

           5.06.     No Cure or Waiver...............................................27

           5.07.     Exercise of Rights and Remedies.................................27

SECTION 6.                MISCELLANEOUS..............................................27

           6.01.     Notices.........................................................27

           6.02.     Waivers; Amendments.............................................27

           6.03.     Successors and Assigns..........................................27

           6.04.     No Third Party Rights...........................................28

           6.05.     Partial Invalidity..............................................28

           6.06.     Governing Law...................................................28

           6.07.     Counterparts....................................................28

           6.08.     Nature of Lessee's Obligations..................................28


EXHIBITS

           A         Land (2.01(a))
           B         Related Goods (2.01(d))
           C         Notice of Rental Period Selection (2.03(a))


                                      -ii-
   480
                                                                            


RECORDING REQUESTED BY
AND WHEN RECORDED, RETURN TO:

Orrick, Herrington & Sutcliffe
Old Federal Reserve Bank Building
400 Sansome Street
San Francisco, CA  94111
Attn:  James W. Miller, Esq.

- ------------------------------------------------------------------------------

                       FIRST AMENDMENT TO LEASE AGREEMENT,
                           CONSTRUCTION DEED OF TRUST
                            WITH ASSIGNMENT OF RENTS,
                      SECURITY AGREEMENT AND FIXTURE FILING

               THIS FIRST AMENDMENT TO LEASE AGREEMENT, CONSTRUCTION DEED OF
TRUST WITH ASSIGNMENT OF RENTS, SECURITY AGREEMENT AND FIXTURE FILING (this
"Amendment"), dated as of November 14, 1997, is entered into by and between:

        (1) KLA-TENCOR CORPORATION, a Deleware corporation ("Lessee"); and

        (2) LEASE PLAN U.S.A., INC., a Georgia corporation ("Lessor"). ------



                                    RECITALS

               A. Lessee, Lessor, each of the financial institutions listed in
Schedule I to the Participation Agreement (referred to below) (collectively, the
"Participants"), and ABN AMRO BANK, N.V., acting through its San Francisco
International Branch, as agent for the Participants (in such capacity, "Agent"),
are parties to a Participation Agreement dated as of November 12, 1997 (the
"Participation Agreement").

               B. Lessee and Lessor are parties to that certain Lease Agreement,
Construction Deed of Trust with Assignment of Rents, Security Agreement and
Fixture Filing dated as of November 12, 1997, and recorded on November 12, 1997,
in the Official Records of Santa Clara County, California, as Document No.
13935258 (the "Lease Agreement").

               C. Pursuant to the terms of the Participation Agreement, Lessee
has requested that Lessor acquire that certain real property described in
Exhibit A attached hereto (the "Tract 4 Land") and made a part hereof.

               D. Lessee and Lessor now desire to amend the Lease Agreement to
add the Tract 4 Land to the property under the Lease Agreement.


   481

                                    AGREEMENT

               NOW, THEREFORE, in consideration of the above recitals and for
other good and valuable consideration, the receipt and adequacy of which are
hereby acknowledged, Lessee and Lessor hereby agree as follows:

               1. DEFINITIONS, INTERPRETATION. All capitalized terms defined
above and elsewhere in this Amendment shall be used herein as so defined. Unless
otherwise defined herein, all other capitalized terms used herein shall have the
respective meanings given to those terms in Schedule 1.01 to the Participation
Agreement. The rules of construction set forth in Schedule 1.02 to the
Participation Agreement shall, to the extent not inconsistent with the terms of
this Amendment, apply to this Amendment and are hereby incorporated by
reference.

               2. AMENDMENTS TO THE LEASE AGREEMENT. The Lease Agreement is
hereby amended by adding to Exhibit A thereto the property description set forth
in Exhibit A to this Amendment and by adding to Exhibit B thereto the Related
Goods set forth in Exhibit B to this Amendment. Without limiting the effect of
such addition, Lessee and Lessor specifically acknowledge and agree that, on and
after the date hereof, (i) the lien of the Lease Agreement includes all of
Lessee's right, title and interest in and to the Tract 4 Land and (ii) the terms
"Land" and "Property" as defined in the Lease Agreement include the Tract 4
Land.

               3. EFFECT OF THIS AMENDMENT. On and after the date of this
Amendment, each reference in the Lease Agreement and the other Operative
Documents to the Lease Agreement shall mean the Lease Agreement as amended
hereby. Except as specifically amended above, (a) the Lease Agreement and the
other Operative Documents shall remain in full force and effect and are hereby
ratified and affirmed and (b) the execution, delivery and effectiveness of this
Amendment shall not, except as expressly provided herein, operate as a waiver of
any right, power, or remedy of Lessor, the Participants or Agent, nor constitute
a waiver of any provision of the Lease Agreement or any other Operative
Document.

               4. MISCELLANEOUS.

                     (a) Counterparts. This Amendment may be executed in any
              number of counterparts, each of which shall be deemed an original,
              but all of which taken together shall constitute one and the same
              instrument. The signature page and acknowledgment of any
              counterpart may be removed therefrom and attached to any other
              counterpart to evidence execution thereof by all of the parties
              hereto without affecting the validity thereof.

                     (b) Headings. Headings in this Amendment are for
              convenience of reference only and are not part of the substance
              hereof. 

                     (c) Governing Law. This Amendment shall be governed by and
              construed in accordance with the laws of the State of California
              without reference to conflicts of law rules.


                                       2
   482

               IN WITNESS WHEREOF, Lessee and Lessor have caused this Amendment
to be executed as of the day and year first above written.



LESSEE:                               KLA-TENCOR CORPORATION




                                      By:
                                         --------------------------------------

                                         Name:
                                              ---------------------------------
                                         Title:
                                               --------------------------------


LESSOR:                               LEASE PLAN U.S.A., INC.



                                      By:
                                         --------------------------------------
                                         Name:
                                              ---------------------------------
                                         Title:
                                               --------------------------------



                                       3
   483


 STATE OF                       )
         -----------------------)
                                )
 COUNTY OF                      )
          ----------------------



       On _____________, 1997 before me, _______________________, a Notary
Public in and for the State of California, personally appeared
_______________________________, personally known to me (or proved to me on the
basis of satisfactory evidence) to be the person(s) whose name(s) is/are
subscribed to the within instrument and acknowledged to me that he/she/they
executed the same in his/her/their authorized capacity(ies), and that by
his/her/their signature(s) on the instrument the person(s), or the entity upon
behalf of which the person(s) acted, executed the instrument.

       WITNESS my hand and official seal. 

       [SEAL]
                                        ---------------------------------------



   484



 STATE OF                       )
         -----------------------)
                                )
 COUNTY OF                      )
          ----------------------



       On _____________, 1997 before me, _______________________, a Notary
Public in and for the State of California, personally appeared
_______________________________, personally known to me (or proved to me on the
basis of satisfactory evidence) to be the person(s) whose name(s) is/are
subscribed to the within instrument and acknowledged to me that he/she/they
executed the same in his/her/their authorized capacity(ies), and that by
his/her/their signature(s) on the instrument the person(s), or the entity upon
behalf of which the person(s) acted, executed the instrument.

       WITNESS my hand and official seal.

       [SEAL]

                              -------------------------------------------------





   485

                                    EXHIBIT A

                                  TRACT 4 LAND

                             THAT CERTAIN REAL PROPERTY SITUATED IN THE COUNTY
OF SANTA CLARA, STATE OF CALIFORNIA, AND DESCRIBED AS FOLLOWS:






                                      A-1
   486



                                    EXHIBIT B

                                  RELATED GOODS

                             The personal property, among other goods, conveyed
by Amdahl Corporation to Lease Plan U.S.A., Inc. by Assignment of Rights dated
as of November 14, 1997 with respect to Tract 4.





                                      B-1
   487
RECORDING REQUESTED BY
WHEN RECORDED RETURN TO
AND MAIL TAX STATEMENTS TO:

Orrick, Herrington & Sutcliffe LLP
400 Sansome Street
San Francisco, California  94111
Attn.:  James W. Miller, Jr.

- ------------------------------------------------------------------------------


                               FIRST AMENDMENT TO
                        MEMORANDUM OF PURCHASE AGREEMENT

           The First Amendment to Memorandum of Purchase Agreement (this
"Amendment") is made November 14, 1997 by and between KLA-TENCOR CORPORATION, a
Delaware corporation ("Lessee") and LEASE PLAN U.S.A., INC., a Georgia
corporation ("Lessor").

                                    RECITALS

           A. Lessee, Lessor, each of the financial institutions listed in
Schedule I to the Participation Agreement (referred to below) (collectively, the
"Participants"), and ABN AMRO BANK, N.V., acting through its San Francisco
International Branch, as agent for the Participants (in such capacity, "Agent"),
are parties to a Participation Agreement dated as of November 12, 1997 (the
"Participation Agreement").

           B. Lessor and Lessee are also parties to that certain Purchase
Agreement dated as of November 12, 1997 (the "Purchase Agreement") covering
certain real property referred to in the Purchase Agreement as the "Property"
and evidenced by that certain Memorandum of Purchase Agreement dated as of
November 12, 1997 (the "Memorandum") which Memorandum was recorded on November
12, 1997, in the Official Records of Santa Clara County, California, as Document
No. 13935260.

           C. Pursuant to the terms of the Participation Agreement, Lessor has
acquired that certain real property described in Exhibit A attached hereto (the
"Tract 4 Land") and made a part hereof, and such Tract 4 Land has been added to
the Property under the Purchase Agreement.

           D. The purpose of this Amendment is to give record notice of the fact
that the Tract 4 Land has been added to the Property under the Purchase
Agreement.

                                    AGREEMENT

           NOW, THEREFORE, in consideration of the mutual covenants contained
herein, and for other good valuable consideration, the receipt and sufficiency
of which are hereby acknowledged, the parties hereby agree as follows:

           The Memorandum is hereby amended by adding to Exhibit A thereto the
property description set forth in Exhibit A to this Amendment. Lessor and Lessee
specifically 

   488

acknowledge and agree that, on and after the date hereof, the term
"Property" as defined in the Purchase Agreement shall include the Tract 4 Land.

           This Amendment may be executed in any number of counterparts, each of
which shall be deemed an original, but all of which taken together shall
constitute one and the same instrument. The signature page and acknowledgment of
any counterpart may be removed therefrom and attached to any other counterpart
to evidence execution thereof by all of the parties hereto without affecting the
validity thereof.

           This instrument is an amendment to the Memorandum and is subject to
all of the terms, covenants and conditions provided in the unrecorded Purchase
Agreement. If the terms of this instrument are inconsistent with the terms of
the Purchase Agreement, the terms of the Purchase Agreement shall prevail.

LESSEE:                KLA-TENCOR CORPORATION

                       By:_________________________________
                            Name: ___________________________
                            Title: ____________________________



LESSOR:                LEASE PLAN U.S.A., INC.

                       By:_________________________________
                            Name: ___________________________
                            Title: ____________________________




                                       2
   489

                                    EXHIBIT A

                                  TRACT 4 LAND

                     THAT CERTAIN REAL PROPERTY SITUATED IN THE COUNTY OF SANTA
CLARA, STATE OF CALIFORNIA, AND DESCRIBED AS FOLLOWS:


   490
 STATE OF ____________________________________________________)
                                                              )
 COUNTY OF ___________________________________________________)


        On _____________, 1997 before me, _______________________, a Notary
Public in and for the State of California, personally appeared
_______________________________, personally known to me (or proved to me on the
basis of satisfactory evidence) to be the person(s) whose name(s) is/are
subscribed to the within instrument and acknowledged to me that he/she/they
executed the same in his/her/their authorized capacity(ies), and that by
his/her/their signature(s) on the instrument the person(s), or the entity upon
behalf of which the person(s) acted, executed the instrument.
                     WITNESS my hand and official seal.


                     [SEAL]
                                      ----------------------------------------



   491

 STATE OF ____________________________________________________)
                                                              )
 COUNTY OF ___________________________________________________)


        On _____________, 1997 before me, _______________________, a Notary
Public in and for the State of California, personally appeared
_______________________________, personally known to me (or proved to me on the
basis of satisfactory evidence) to be the person(s) whose name(s) is/are
subscribed to the within instrument and acknowledged to me that he/she/they
executed the same in his/her/their authorized capacity(ies), and that by
his/her/their signature(s) on the instrument the person(s), or the entity upon
behalf of which the person(s) acted, executed the instrument.
                     WITNESS my hand and official seal.


                     [SEAL]
                                    -------------------------------------------