Exhibit 10.1
                                                               Execution Version



                        SHARE PURCHASE AND SALE AGREEMENT
                                of June 17, 2005

                                     between



                             TAT Investments II C.V.
                             FCPR Banexi Ventures 3
                             Innoventure Capital AG
                            Banque Cantonale Vaudoise
                                    Rolex SA
                                    Phonak AG
                             FCPR Banexi Ventures 2
                           Vontobel European Ventures
                        Manufacture des Montres Rolex SA
                      Mme Marie-Cecile Bizet nee Cointreau
                           Richemont International SA
                    Caisse de Pension de l'Etat de Neuchatel



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                                 Mr Alain Dantec
                                Mr Michel Desbard
                                 Mr Roland Heer
            The Yasuda Enterprise Development I, Limited Partnership
                                  Mr Evan Rohr
                              Mr Thomas Hinderling
                               Mr Jean-Paul Bardyn
                                  Mr Remy Pache
                                Mr Serge Girardin

                                       and


                            Semtech International AG


                                    regarding



                                    Xemics SA

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                                Table of Content




                                                                                     


ARTICLE 1. Definitions                                                                   8

ARTICLE 2. Sale and Purchase of Shares, Consideration                                   15

2.1    Sale and Purchase of Shares                                                      15
2.2    Purchase Price                                                                   15
2.2A   Closing Payment                                                                  16
2.2B   Adjustment of Specific Estimated Social Security Cost 2005 and
       Specific Estimated Stamp Duty Cost 2005                                          16
2.3    Purchase Price Adjustment                                                        17
2.3.1  First Purchase Price Adjustment                                                  17
2.3.2 Second Purchase Price Adjustment                                                  18
2.3.3  Payment of any Purchase Price Adjustment                                         18
2.4    Relevant Gross Revenue                                                           18


ARTICLE 3. Closing                                                                      22

3.1    Actions Prior to Closing                                                         22
3.1.1  In General                                                                       22
3.1.2  Filings and Submissions                                                          22
3.1.3  Termination of Agreements                                                        22
3.1.4  Third Party Consents                                                             23
3.1.5  Intentionally left blank                                                         23
3.1.6  Certain Patents and Technology Licenses                                          23
3.1.7  Closing Memorandum                                                               23
3.2    Closing Date and Location                                                        23
3.3    Conditions Precedent to Closing                                                  24
3.3.1  Conditions Precedent to Closing for Both the Sellers and the Purchaser           24
3.3.2  Conditions to Obligations of the Purchaser                                       24
3.3.3  Condition to Obligations of the Seller                                           25
3.3.4  Right to Terminate this Agreement                                                25
3.4    Closing Actions                                                                  26
3.4.1  Closing Actions by the Sellers                                                   26
3.4.2  Closing Actions by the Purchaser                                                 27



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3.5    Default Interest                                                                 28


ARTICLE 4. Representations and Warranties of the Sellers                                28

4.1    Organization and Qualification                                                   28
4.2    Capital Structure                                                                29
4.3    Ownership and Corporate Structure                                                29
4.4    Financial Statements                                                             30
4.5    No Undisclosed Liabilities                                                       30
4.6    Absence of Adverse Changes                                                       30
4.7    Permits and Authorizations                                                       31
4.8    Claims and Litigation                                                            31
4.9    Taxes                                                                            32
4.10   Agreements with Third Parties                                                    33
4.11   Intellectual Property/Know-how                                                   34
4.12   Employment Matters                                                               35
4.13   Pensions                                                                         35
4.14   Insurance Policies                                                               36
4.15   Compliance with the Law                                                          36
4.16   Environmental Matters                                                            36
4.17   Product Liability                                                                37
4.18   Real Property                                                                    37
4.19   Machinery, Vehicles, Equipment and Fixtures                                      37
4.20   Agreements between Sellers and the Companies                                     37
4.21   Fair Disclosure                                                                  38


ARTICLE 5. Remedies                                                                     38

5.1    Term of Warranties and Representations                                           38
5.2    Notification and Examination Requirements                                        38
5.3    Indemnification                                                                  39
5.4    Limitations                                                                      40
5.4.1  De Minimis                                                                       40
5.4.2  Maximum Amount                                                                   40
5.4.3  Exclusion of Liability                                                           41
5.5    Procedure with Third Parties and Authorities                                     42
5.6    Escrow Agreement and Escrow Account                                              43



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ARTICLE 6. Covenants                                                                    43

6.1    Conduct of Business                                                              43
6.2    Free Access to the Companies, the Management and Information                     44
6.3    No Recourse of Sellers against Directors and Employees of the Companies          44
6.4    No Claim of Sellers against the Companies                                        45
6.5    Covenant not to Compete                                                          45
6.6    Non-Solicitation of Employees                                                    45
6.7    Sellers' Representative                                                          46
6.8    Earnout Covenant of the Purchaser                                                47
6.9.   Earnout Covenant of the Sellers                                                  49
6.10   Funding of the Purchase Price                                                    49
6.11   Liability for Breach of Covenants                                                50
6.12   Liability for Violation of Covenants                                             50


ARTICLE 7. Election of new Board of Directors of the Company                            51


ARTICLE 8. Taxes                                                                        51

8.1    Taxes to be Paid by the Parties                                                  51


ARTICLE 9. Miscellaneous                                                                51

9.1    Costs                                                                            51
9.2    Notice                                                                           51
9.3    No Waiver                                                                        53
9.4    Entire Agreement                                                                 53
9.5    Binding on Successors                                                            53
9.6    Announcements                                                                    53


ARTICLE 10. Governing Law and Arbitration                                               54

10.1   Governing Law                                                                    54
10.2   Arbitration                                                                      54



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                        SHARE PURCHASE AND SALE AGREEMENT


                                     between


1    TAT Investments II C.V., Pareraweg 45, Curacao (Netherlands Antilles)

2    FCPR Banexi Ventures 3, 32 Blvd. Haussmann, 75009 Paris (France)

3    Innoventure Capital AG, Bleicherweg 72, 8070 Zurich

4    Banque Cantonale Vaudoise, Place Saint-Francois 14, 1003 Lausanne

5    Rolex SA, Rue Francois-Dussaud 3-7, 1211 Geneva

6    Phonak AG, Laubisrutistrasse 28, 8712 Stafa

7    FCPR Banexi Ventures 2, 32 Blvd. Haussmann, 75009 Paris (France)

8    Vontobel  EuropeanVentures  Holding Corporation,  P.O. Box 30846 SMB, Grand
     Cayman (Cayman Islands)

9    Manufacture des Montres Rolex SA, Rue David-Moning 9, 2501 Bienne

10   Mme  Marie-Cecile  Bizet nee  Cointreau,  ch. du Pertuis du Sault 11,  2000
     Neuchatel

11   Richemont International SA, Route des Biches 10, 1752 Villars-sur-Glane

12   Caisse de Pension de l'Etat de Neuchatel, Rue du Musee 1, 2001 Neuchatel

13   Mr Alain Dantec, Chemin des Essorbiers 28, 2022 Bevaix

14   Mr Michel Desbard, 23 Alta street, San Francisco, CA 94133, U.S.A.

15   Mr Roland Heer, Grosswiesen 18, 8044 Zurich-Gockhausen

16   The Yasuda Enterprise  Development I, Limited  Partnership,  BYGS Shinjyuku
     Building 6F, 2-19-1 Shinjyuku, Shinjyuku-ku, Tokyo (Japan 160-0022)

17   Mr Evan Rohr, Chemin Vieux 14, 2000 Neuchatel

18   Mr Thomas Hinderling, Liseron 9, 2000 Neuchatel

19   Mr Jean-Paul Bardyn, Chemin des Sources 3, 2013 Colombier


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20   Mr Remy Pache, Leman 9, 1025 St Sulpice

21   Mr Serge Girardin, Rue de la Gare 1a, 2074 Marin


                                               (each of parties 1 to 21 a Seller
                                                   and collectively the Sellers)



                                       and


Semtech International AG, Bionstrasse 4, 9015 St. Gallen


                                                                 (the Purchaser)


                                    regarding


Xemics SA, rue de Monruz 2, 2000 Neuchatel


                                                                   (the Company)




WHEREAS

A.     Xemics  SA is a  company  incorporated  under  the  laws of  Switzerland,
       domiciled at Neuchatel,  with a share capital of CHF 10'134'416,  divided
       into 10'134'416  fully paid in registered  shares with a nominal value of
       CHF 1 each;


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B.     Xemics USA, Inc., is a company  incorporated  under the laws of the State
       of Delaware,  United  States of America,  with its  registered  office at
       Wilmington,  with a share capital of USD10,  divided into 1'000  ordinary
       shares with a nominal value of USD 0.01 each (Xemics USA);

C.     The Sellers own all the shares in the Company  (the  Shares) as listed on
       Schedule C;

D.     Xemics SA owns all the shares in Xemics USA;

E.     Xemics SA and Xemics USA are engaged in the  business of  developing  and
       delivering  standard and  customized  advanced  integrated  circuits that
       provide  short range  wireless  connectivity  solutions for personal area
       networks and home and building automation networks;

F.     The  Sellers  wish  to sell  all  the  Shares  to the  Purchaser  and the
       Purchaser  wishes to purchase all the Shares from the Sellers pursuant to
       the terms and conditions of this Agreement;


NOW, THEREFORE, the Parties hereto agree as follows:


                                    ARTICLE 1
                                    ---------
                                   Definitions
                                   -----------

As used in this Agreement, the following terms have the following meaning unless
the context requires otherwise:


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Affiliate  means with respect to a person or entity,  any other person or entity
directly or indirectly controlling,  controlled by or under common control with,
such person or entity;  for  purposes of this  definition,  "control"  means the
possession,  directly  or  indirectly,  of the  power to  direct  or  cause  the
direction of the management and policies of a person or entity,  whether through
the ownership of voting securities or otherwise;

Agreement  means this  Agreement  and its Schedules as amended from time to time
pursuant to art. 9.4 hereof;

Business Day means any day on which the commercial  banks in Zurich are open for
normal business transactions;

CHF means Swiss Francs, being the lawful currency of Switzerland;

Closing means the consummation of the transactions described in art. 2 hereof in
accordance with art. 3 hereof;

Closing Date means the date defined in art. 3.2 hereof;

Closing  Payment  means the payment to be made by the  Purchaser to the Sellers'
Representative,  acting for all the Sellers together,  at and subject to Closing
as set forth in art. 2.2A hereof;

Companies means Xemics SA and Xemics USA, Inc.;


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Consolidation/Consolidated  means in respect of the financial  statements of the
Companies,  accumulation  as of a  specific  date as if the  Companies  were one
single  enterprise,  with all balances and  transactions  between the  Companies
eliminated as required by IFRS and as further set forth in the Group  Accounting
and Consolidation Principles;

Earnout  Period means the period from May 2, 2005 up to and including  April 30,
2006;

Escrow Agent means BDO Visura, Zurich;

Escrow  Agreement means the escrow  agreement  entered among the Parties and the
Escrow Agent pursuant to art. 5.6 hereof;

Escrow Amount means the total of all funds  transferred  into the Escrow Account
by the Purchaser as set forth in art. 3.4.2;

Exchange  Rate means the  exchange  rate of US Dollars  against  Swiss Francs as
agreed between the Parties being USD 1 : CHF 1.16;

Escrow  Account  means the escrow  account in the name of the Escrow Agent to be
set up pursuant to art. 5.6 hereof and pursuant to the Escrow Agreement;

Group  Accounting  and   Consolidation   Principles  means  the  accounting  and
Consolidation principles of the Xemics Group as set forth on Schedule 4.4 (c);

Group  Financial  Statements  means the  Consolidated  income  statement and the
Consolidated  balance  sheet  of  the  Xemics  Group  as  of  a  specific  date,
established  in  compliance  with  IFRS  and  with  the  Group   Accounting  and
Consolidation Principles;


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IFRS means International Financial Reporting Standards;

Independent   Relevant  Gross  Revenue   Appraiser   means  Mr.  Rudolf  Hafeli,
Vorsitzender Regionaldirektion, BDO Visura, 8031 Zurich, or, if Mr Hafeli is for
any reason unable to act or resigns,  another  experienced senior partner of the
accounting  department of BDO Visura,  Zurich,  appointed by the Chairman of the
Board of BDO Visura,  Zurich, or, finally, if no such substitute  appointment is
made within 10 days from the  resignation  or inability  to act, an  experienced
senior partner of an international accounting firm appointed by the President of
the Zurich Chamber of Commerce;

Loan Agreement means a loan agreement dated April 8, 2005, entered among certain
of the Sellers on one hand, and the Company on the other hand;

Main Shareholders means the Sellers 1, 2, 3, 4, 5 and 7 ;

Operating  Plan means the business  operation  plan  applicable  for the Earnout
Period,  jointly  developed  by the  Company's  management  and the  Purchaser's
management, handed over to the Sellers' Representative by the Purchaser prior to
Signing;

Options  and  Participation   Agreements  means,  with  the  exception  of  this
Agreement,  all  agreements  which any of the Sellers  and/or the Companies have
entered  into with  investors  or  employees  of the  Companies,  or with  other
individuals  or  entities,  and/or with any of the  Companies,  that grant stock
options or similar  rights in respect of the share  capital in the Companies for
the present or for the future;


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Party or Parties means the Purchaser or all of the Sellers  together or all, the
Purchaser and all of the Sellers;

Plan means CHF 37.5 million;

Purchase  Price means the  consideration  payable by the  Purchaser  for all the
Shares together as set forth in art. 2.2 hereof;

Purchase Price  Adjustments  means the  adjustments of the Purchase Price as set
forth in art. 2.3 hereof;

Relevant  Gross Revenue means the gross revenue of the Xemics Group (as per line
item "Total Revenue" in the Consolidated  income statement contained in Schedule
4.4(a)) generated during the Earnout Period, as shown in the Consolidated income
statement of the Xemics Group as of the last date of the Earnout Period for that
same period, thereby revenue portions generated in USD converted into CHF at the
Exchange Rate; for the avoidance of doubt including any revenue generated (i) by
sales of Xemics  Group  products  and  services by the  Companies to the Semtech
Group or its distributors or sales representatives,  and (ii) by sales of Xemics
Group products and services by and for the account of the Semtech Group;

Schedule means a schedule to this Agreement;

Sellers'  Representative means Tat Investments II C.V., Pareraweg 45, Curacao, a
limited  partnership with one managing partner under the laws of the Netherlands
Antilles,  registered  under  number  81091 in the  commercial  register  of the
Curacao  Chamber of Commerce  and  Industry,  acting  through its sole  managing
partner Tat Investments  Management N.V., a


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limited liability company under the laws of the Netherlands Antilles, registered
under  number  75286  in the  commercial  register  of the  Curacao  Chamber  of
Commerce,  acting through its managing  director  (currently Mr. Maarten Jacobus
Robberts),  such  Sellers'  Representative  having the full  authority to act on
behalf of each of the  Sellers  individually  and on  behalf of all the  Sellers
together as further set forth in art.  6.7 hereof and as evidenced by a Sellers'
Representative  Agreement  entered  between  all the  Sellers  and the  Sellers'
Representative and handed over to the Purchaser;

Semtech Group means the Purchaser,  its (ultimate)  parent company Semtech Corp.
and all of their Affiliates,  for the avoidance of doubt to the exclusion of the
Companies;

Shares means shares of Xemics SA, each with a nominal value of CHF 1 each;

Shareholders'  Facility and Option Agreement means a loan and options  agreement
dated June 3, 2004,  entered among  certain of the Sellers on one hand,  and the
Company on the other hand;

Shareholders  Loans  means all of the  interest  bearing  loans  granted  to the
Company by certain of the Sellers  under the  Shareholders'  Facility and Option
Agreement and the Loan Agreement in the total amount of CHF 3.3 million;

Specific  Estimated  Social  Security Cost 2005 means the total cost the Company
will incur in 2005 for social security  payments and pension fund  contributions
(in both  instances  employer  contributions  only) in  connection  with options
granted by the Company to the employees of the  Companies  and exercised  before
the  Closing as per the  calculation  of the CFO of the  Company to be  provided
prior to Closing (based on the assumption that for social se-


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curity purposes 100% of the option-related payments to employees will qualify as
salary), converted into USD at the Exchange Rate;

Specific  Final Social  Security Cost 2005 means the Specific  Estimated  Social
Security Cost 2005 adjusted in accordance with art. 2.2B;

Specific Social Security Cost 2006 means the total cost the Company may incur in
2006 for social  security tax payments and pension fund  contributions  (in both
instances employer contributions only) in connection with options granted by the
Company to the  employees  of the  Companies  and  exercised  before the Closing
converted  into USD at the  Exchange  Rate;  for the  avoidance  of doubt to the
exclusion of cost created by virtue of the Companies making any voluntary change
to their pension plan;

Specific  Estimated Stamp Duty Cost 2005 means an amount equivalent to the stamp
duty owed by the Company in connection  with the Specific  Social  Security Cost
2005 and possibly also in connection with the related employee contributions and
tax at  source as per the  ruling  from the  federal  tax  administration  to be
obtained  by  Sellers  prior to Closing  and  calculated  based on the  Specific
Estimated  Social Security Cost 2005 (and on the estimated amount of the related
employee   contributions   and  tax  at  source  if   necessary   based  on  the
aforementioned ruling), converted into USD at the Exchange Rate;

Specific Final Stamp Duty Cost 2005 means the Specific Estimated Stamp Duty Cost
2005 adjusted in accordance with art. 2.2B;

Specific Stamp Duty Cost 2006 means an amount  equivalent to the stamp duty owed
by the Company in  connection  with the Specific  Social  Security Cost 2006 and
possibly also in connection with the related employee  contributions  and tax at
source as per the ruling from


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the federal  tax  administration  to be  obtained  by Sellers  prior to Closing,
converted into USD at the Exchange Rate;

Taxes means all Swiss and foreign tax  liabilities  whether actual or contingent
in respect of income  taxes,  sales  taxes,  VAT,  any  turnover or cost related
taxes,  withholding taxes,  stamp duties and any other transfer duties,  payroll
taxes,  social security taxes and contributions,  pension fund contributions and
property  taxes and all other  levies,  customs,  taxes and public duties of any
kind and any penalties and interest related thereto;

USD means United States Dollars,  being the lawful currency of the United States
of America;

Xemics Group means the Companies together.


                                    ARTICLE 2
                                    ---------
                          Sale and Purchase of Shares,
                          ----------------------------
                                  Consideration
                                  -------------

2.1        Sale and Purchase of Shares.  Subject to the terms and  conditions of
           this Agreement, the Sellers hereby agree to sell to the Purchaser and
           the Purchaser agrees to buy from the Sellers all of the Shares.

2.2        Purchase Price. The purchase price for all the Shares consists of USD
           43'000'000, minus the Specific Final Social Security Cost 2005, minus
           the  Specific  Final  Stamp Duty Cost  2005,  minus the amount of the
           Shareholders Loans converted into USD at the Exchange Rate, minus the
           amount of accrued interest for the Shareholders


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           Loans up to the Closing,  converted  into USD at the  Exchange  Rate,
           plus any First Purchase Price  Adjustment,  plus any Second  Purchase
           Price  Adjustment  (the Purchase  Price).  Any First  Purchase  Price
           Adjustment and any Second  Purchase  Price  Adjustment are payable by
           the  Purchaser  to the  Sellers'  Representative  after the  Closing,
           subject to the conditions set forth in art. 2.3 hereof.

2.2A       Closing  Payment.  At and  subject  to  Closing,  the  amount  of USD
           43'000'000  minus the Specific  Estimated  Social Security Cost 2005,
           minus the Specific Estimated Stamp Duty Cost 2005 shall be payable by
           the Purchaser to the Sellers'  Representative and the Escrow Agent as
           set forth in art.  3.4.2 hereof (the Closing  Payment),  such Closing
           Payment to account (i) as full compensation, to the relevant lenders,
           for their  assignment  to the  Purchaser  of their loans plus accrued
           interest up to the Closing under the Shareholders  Loans, and (ii) as
           full settlement of the Purchase Price, subject only to any adjustment
           of the Specific  Estimated Social Security Cost 2005 and the Specific
           Estimated  Stamp Duty Cost as set forth in art.  2.2B  hereof and any
           Purchase  Price  Adjustments  being  payable after the Closing as set
           forth in art. 2.3 hereof.

2.2B       Adjustment  of  Specific  Estimated  Social  Security  Cost  2005 and
           Specific  Estimated  Stamp Duty Cost 2005. If the actual costs of the
           Company to be captured  under the  definition of "Specific  Estimated
           Social Security Cost 2005" deviate from the Specific Estimated Social
           Security  Cost 2005 by more  than 10% (in  particular  if the  social
           security  authorities agree that less than 100% of the option-related
           payments  to  employees  qualify as salary),  then such actual  costs
           shall be deemed to be the Specific  Final Social  Security  Cost 2005
           and the Specific Estimated Stamp Duty Cost 2005 shall be recalculated
           accordingly  to the Specific  Final Stamp Duty Cost 2005, and (i) the
           balance of the Specific Estimated Social Security Cost 2005 minus


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           the Specific Final Social Security Cost 2005, and (ii) the balance of
           the Specific Estimated Stamp Duty Cost minus the Specific Final Stamp
           Duty Cost shall be  reimbursed  by the Sellers to the  Purchaser  (if
           such balances are negative numbers), respectively by the Purchaser to
           the  Sellers  by  payment  to the  Sellers'  Representative  (if such
           balances  are  positive  numbers),  as the case may be.  In case of a
           deviation of 10% or less, the Specific Estimated Social Security Cost
           2005 shall be deemed the Specific  Final Social  Security  Cost 2005,
           and the Specific  Estimated  Stamp Duty Cost 2005 shall be deemed the
           Specific Final Stamp Duty Cost 2005.

2.3        Purchase Price Adjustments

2.3.1      First Purchase Price Adjustment.  If the Relevant Gross Revenue meets
           or  exceeds  the Plan,  or  misses  the Plan by no more than nine per
           cent,  then a First  Purchase  Price  Adjustment  is  payable  by the
           Purchaser to the  Sellers.  If the Relevant  Gross  Revenue  meets or
           exceeds the Plan, then the First Purchase Price Adjustment amounts to
           USD 8 million (eight million) reduced by the Specific Social Security
           Cost 2006  applicable  to such USD 8 million.  If the Relevant  Gross
           Revenue  misses  the Plan by more than  zero,  but less than nine per
           cent   (Percentage  of  Failure),   then  the  First  Purchase  Price
           Adjustment is equal to the amount that results,  if the amount of USD
           8 million is shortened proportionately in line with the Percentage of
           Failure  and  reduced  by the  Specific  Social  Security  Cost  2006
           applicable to such shortened  amount,  all as illustrated on Schedule
           2.3.1. In both cases, a further  reduction shall be made in an amount
           equivalent  to the  portion  of the  Specific  Stamp  Duty  Cost 2006
           applicable to the portion of the Specific  Social  Security Cost 2006
           as per this art.  2.3.1.  For the sake of  clarity:  if the  Relevant
           Gross  Revenue  misses  the  Plan by nine or more per  cent,  then no
           Purchase Price Adjustment is payable.


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2.3.2      Second  Purchase  Price  Adjustment.  If the Relevant  Gross  Revenue
           exceeds  the Plan,  then the  Second  Purchase  Price  Adjustment  is
           payable  by the  Purchaser  to the  Sellers.  If the  Relevant  Gross
           Revenue  exceeds  the Plan by ten or more per cent,  then the  Second
           Purchase Price  Adjustment  amounts to USD 8 million (eight  million)
           reduced by the  portion of the  Specific  Social  Security  Cost 2006
           applicable  to such USD 8  million.  If the Xemics  Group's  Relevant
           Gross Revenue  exceeds the Plan by more than zero,  but less than ten
           per cent  (Percentage  of Increase),  then the Second  Purchase Price
           Adjustment  is, in line with the  Percentage of Increase,  equal to a
           proportional  amount of USD 8 million  reduced by the  portion of the
           Specific Social  Security Cost 2006  applicable to such  proportional
           amount,  all as  illustrated  on Schedule  2.3.2.  In both  cases,  a
           further  reduction  shall  be made  in an  amount  equivalent  to the
           portion  of the  Specific  Stamp  Duty  Cost 2006  applicable  to the
           portion of the Specific  Social  Security  Cost 2006 as per this art.
           2.3.2.

2.3.3      Payment  of  any  Purchase  Price  Adjustment.   Any  Purchase  Price
           Adjustment  pursuant to art. 2.3. hereof shall be paid in immediately
           available  funds in USD for  value  within  10  Business  Days of the
           Relevant  Gross  Revenue  having  become  final and  binding  by wire
           transfer  to a  bank  account  to be  designated  in  writing  by the
           Sellers' Representative.

2.4        Relevant Gross Revenue.  The Purchaser shall cause  management of the
           Xemics  Group to  prepare,  in  compliance  with  IFRS and the  Group
           Accounting and Consolidation  Principles and taking into account art.
           6.8.2(vii), the Consolidated income statement of the Xemics Group for
           the period May 2, 2005 to April 30, 2006,  showing the Relevant Gross
           Revenue and to deliver  such  Consolidated  income  statement  of the
           Xemics  Group to the  Sellers'  Representative  and to the  Purchaser
           within 15 Business Days from May 1, 2006.


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           (a) Unless the Sellers'  Representative or the Purchaser give written
           notice of objection to the other  within 20 Business  Days  following
           receipt of such Consolidated  income  statement,  against the therein
           stated  Relevant  Gross Revenue,  thereby  specifying the reasons for
           objection in reasonable  detail,  the Relevant Gross Revenue shown in
           the  delivered  Consolidated  income  statement  shall be  final  and
           binding for purposes of any Purchase Price Adjustment.

           (b) In the event of an objection by the Sellers' Representative or by
           the Purchaser, the Sellers' Representative and the Purchaser shall in
           good faith  attempt to resolve such  disagreement  within 20 Business
           Days  upon  receipt  of a notice  of  objection  in order to agree in
           writing on the amount of the Relevant Gross Revenue. If they do, then
           such  agreed  amount of  Relevant  Gross  Revenue  shall be final and
           binding.

           (c)  Objections  may be  raised  only  against  the  recognition  and
           Consolidation  of Relevant Gross Revenue,  but no objection  shall be
           admissible against adverse impacts on the Relevant Gross Revenue that
           are the result of reasonable  business decisions taken by the Company
           and/or the  Purchaser  post  Closing,  it being  understood  that any
           diversion  of revenue  streams  allocable  to the  Companies,  to the
           Purchaser or an Affiliate of the  Purchaser  outside the Xemics Group
           shall not be permitted for purposes of calculating the Relevant Gross
           Revenue.  For the avoidance of doubt, any such controversy other than
           over the recognition or the  Consolidation  of Relevant Gross Revenue
           cannot  be  determined  by the  Independent  Relevant  Gross  Revenue
           Appraiser.  (Any such controversy  other than over the recognition or
           the   Consolidation   of  Relevant  Gross  Revenue,   including  over
           compliance with art. 6.8 hereof, is subject solely to arbitration.)


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           (d) If the Sellers'  Representative  and the Purchaser  fail to agree
           within the stated period, then each Party shall be entitled to submit
           the  controversial  matter to the Independent  Relevant Gross Revenue
           Appraiser.  Upon  receipt  of any such  submission,  the  Independent
           Relevant Gross Revenue  Appraiser  shall  forthwith  consult with the
           Sellers'  Representative and the Purchaser and thereupon resolve such
           difference and determine the Relevant Gross Revenue (within the range
           of the  Parties'  positions)  within no longer than 30 Business  Days
           following  receipt  of the  submission,  thereby  acting as an expert
           arbiter  ("Schiedsgutachter").  No later than 5 Business  Days before
           rendering  his  decision,  the  Independent  Relevant  Gross  Revenue
           Appraiser   shall   discuss  his  findings   with  both  the  Sellers
           Representative  and the Purchaser on a preliminary  basis.  Except in
           the event of manifest error, the  determination of the Relevant Gross
           Revenue by the Independent  Relevant Gross Revenue Appraiser shall be
           final and binding.  The expenses of the  Independent  Relevant  Gross
           Revenue  Appraiser shall be equally borne by all the Sellers (jointly
           and  severally)  on the one hand and by the  Purchaser  on the  other
           hand.  Sellers'   Representative  and  the  Purchaser  shall  advance
           reasonably  anticipated  fees  and cost of the  Independent  Relevant
           Gross Revenue Appraiser upon first demand by him.

           (e)  Upon  notice  of the  Relevant  Gross  Revenue  to the  Sellers'
           Representative,   the  Purchaser  shall  procure  that  the  Sellers'
           Representative  and its  advisors are  promptly  given access  during
           ordinary  business  hours to the books,  records and personnel of the
           Xemics Group as the Sellers'  Representative  may reasonably  request
           for the  purpose  of  reviewing  the books and  records of the Xemics
           Group in the  context  of the  determination  of the  Relevant  Gross
           Revenue.

           (f) The Sellers'  Representative and the Purchaser shall procure that
           the  Independent  Relevant Gross Revenue  Appraiser will be furnished
           with all documents and infor-


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           mation  needed.   Apart  from  procedural  matters,  the  Independent
           Relevant Gross Revenue  Appraiser shall only have authority to decide
           whether the Relevant  Gross Revenue and its elements are correct and,
           if not so, to make the  appropriate  alterations  in order to correct
           any relevant inaccuracy, explaining in writing the reasoning for such
           alterations.  The Independent  Relevant Gross Revenue Appraiser shall
           be bound by the principles  established by this Agreement and by this
           art. 2.4 in particular,  to the Group  Accounting  and  Consolidation
           Principles  and to IFRS,  with the Agreement  and in particular  this
           art.  2.4  prevailing  over the Group  Accounting  and  Consolidation
           Principles and the latter prevailing over IFRS. (For the avoidance of
           doubt:  any  controversy  other  than  over  the  recognition  or the
           Consolidation  of Relevant Gross Revenue,  including over  compliance
           with art. 6.8 hereof, is subject solely to arbitration.)

           (g) Except if otherwise agreed by the Sellers' Representative and the
           Purchaser,  the  Independent  Relevant Gross Revenue  Appraiser shall
           determine his own  procedure,  but he shall comply with the principle
           of due process and shall in particular  hear both sides and give them
           opportunity to make written and oral representations to him; he shall
           require each the Sellers'  Representative and the Purchaser to supply
           the other side with a copy of any written  representation at the same
           time as made to him and he shall permit each side to be present while
           oral  representations  are being  made to him by the other  side.  He
           shall make his  analysis  and make his  determination  strictly  fact
           based.


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                                    ARTICLE 3
                                    ---------
                                     Closing
                                     -------

3.1        Actions Prior to Closing

3.1.1      In  General.  Unless  specifically  otherwise  provided  herein,  the
           Parties undertake to use their  commercially  reasonable best efforts
           to procure that (i) the  conditions  precedent set forth in art. 3.3.
           be satisfied expeditiously, (ii) all their Affiliates do all acts and
           things as are  necessary  (and within their  power) to implement  the
           transactions  contemplated by this Agreement. The Parties shall fully
           cooperate and promptly inform each other on any  development  that is
           relevant to achieve the Closing.

3.1.2      Filings and Submissions.  The Purchaser shall use its best efforts to
           make (if permitted under  applicable law) all filings and submissions
           legally required, as listed on Schedule 3.1.2 within 10 Business Days
           following  the date of this  Agreement.  No Party shall make any such
           listed  filing or  submission  without the prior consent of the other
           Party  (such  consent  not to be delayed  and not to be  unreasonably
           withheld).

3.1.3      Termination of Agreements. (a) The Sellers shall consent to and shall
           cause a consensual  termination  as of Closing of all the Options and
           Participation  Agreements,  except to the extent otherwise instructed
           in writing by the  Purchaser;  in  respect of each such  Options  and
           Participation  Agreement terminated before or as of the Closing, each
           of the relevant  Sellers  shall  confirm to the  Purchaser in writing
           that  as of the  Closing  and  beyond  the  Closing  he has no  claim
           whatsoever against any of the Companies or the Purchaser.


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           (b) Each of the Sellers shall consent to and shall cause a consensual
           termination as of or before the Closing of the agreements between him
           and any of the  Companies  listed  on  Schedule  4.20,  except to the
           extent otherwise instructed by the Purchaser; in respect of each such
           agreement  terminated  before  or as of  the  Closing,  each  of  the
           relevant Sellers shall confirm to the Purchaser in writing that as of
           the Closing and beyond the Closing he has no claim whatsoever against
           any of the  Companies  or the  Purchaser.  It is agreed  between  the
           Parties that the two agreements with Seller 6 shall not be terminated
           and shall remain effective beyond the Closing.

3.1.4      Third Party  Consents.  The Sellers  undertake to use reasonably best
           efforts to procure the consent to this  transaction by the Companies'
           contractual parties of the agreements listed on Schedule 4.10.2.

3.1.5      intentionally left blank.

3.1.6      Certain Patents and Technology Licenses.  The Sellers shall cause the
           Company to ascertain and assist the Purchaser in achieving that until
           the  Closing  certain  filings  are made in respect of patents of the
           Company that are not yet  registered in the  Company's  name and that
           certain  license  agreements  are entered  between the Company and/or
           third parties, all as further set forth on Schedule 3.1.6.

3.1.7      Closing  Memorandum.  No  later  than 5  Business  Days  prior to the
           Closing Date,  Sellers' legal counsel shall prepare in  collaboration
           with  Purchaser's  legal counsel,  a closing  memorandum  which shall
           serve as evidence for the Closing.

3.2        Closing Date and Location. Closing shall take place at the offices of
           Baker & McKenzie Zurich, Zollikerstrasse 225, 8008 Zurich, or at such
           other  location as the


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           Parties may mutually agree on in writing,  no later than six Business
           Days after all conditions precedent set forth in art. 3.3 hereof have
           been satisfied or waived (where waiver is permissible).

3.3        Conditions Precedent to Closing.

3.3.1      Conditions  Precedent  to  Closing  for  Both  the  Sellers  and  the
           Purchaser.  The  obligation  of the Sellers and of the  Purchaser  to
           effect the  transactions set forth in this Agreement shall be subject
           to the satisfaction or waiver of the following conditions:

           (a) All governmental,  administrative or regulatory  approvals as set
           forth on  Schedule  3.3.1  shall have been  obtained  and any waiting
           period  under the merger  control  laws set forth on  Schedule  3.3.1
           shall have expired or been terminated by the competent authorities;

           (b) No action is pending or  threatened  and no order,  injunction or
           decree of any  court,  administrative  body or  arbitration  tribunal
           exists which seeks to enjoin, restrain,  impede or levy a substantial
           difficulty  on  the  consummation  of the  transactions  contemplated
           hereunder.

3.3.2      Conditions to Obligations of the  Purchaser.  The  obligations of the
           Purchaser  to  effect  the  transactions   contemplated   under  this
           Agreement  shall be  subject  to the  satisfaction  or  waiver of the
           following conditions:


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           (a) that the Sellers  shall have  performed in all material  respects
           all of their  obligations  undertaken  in this  Agreement or pursuant
           hereto that are to be performed on or by the Closing ;

           (b) that all agreements pursuant to art. 3.1.3 (a) hereof,  including
           all Options and  Participations  Agreements,  have been terminated as
           set forth in art.  3.1.3 (a) and with full release from liability for
           the Company for all its  obligations  thereunder  before or as of the
           Closing;

           (c) that the  agreements  pursuant to art. 3.1.3 (b) hereof have been
           terminated as set forth in art.  3.1.3 (b) and with full release from
           liability for the Company for all its obligations  thereunder  before
           or as of the Closing;

           (d) that the  calculations of the Specific  Estimated Social Security
           Cost  2005 and of the  Specific  Estimated  Stamp  Duty Cost 2005 are
           provided by the Sellers;

           (e) that  written  evidence is provided by the Sellers  that Seller 6
           has waived its right to  terminate  any of the  agreements  listed on
           Schedule 4.10.2 and to which it is a party.

3.3.3      Condition to  Obligations  of the  Sellers.  The  obligations  of the
           Sellers to effect the transactions  contemplated under this Agreement
           shall be subject to the  satisfaction or waiver of the condition that
           the Purchaser  shall have  performed in all material  respects all of
           its obligations  undertaken in this Agreement or pursuant hereto that
           are to be performed on or by the Closing Date.

3.3.4      Right  to  Terminate  this  Agreement.   (a)  Should  the  conditions
           precedent to Closing set forth in art. 3.3.1 or 3.3.2 not be met by a
           date one month after the signing of


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           this Agreement,  the Purchaser may terminate this  Agreement,  unless
           the Purchaser failed to use all commercially  reasonable best efforts
           to procure the satisfaction of any such condition.

           (b)  Should the  conditions  precedent  to Closing  set forth in art.
           3.3.1 or 3.3.3 not be met by a date one month  after the  signing  of
           this Agreement, the Sellers acting through the Sellers Representative
           may terminate  this  Agreement,  unless the Sellers failed to use all
           commercially  reasonable  efforts to procure the  satisfaction of any
           such condition.

           (c) If this  Agreement is  terminated  pursuant to and in  compliance
           with this art. 3.3.4, all provisions of this Agreement shall cease to
           be effective except for art. 1, 9, and 10.

3.4        Closing Actions.

3.4.1      Closing Actions by the Sellers. At the Closing the Sellers shall:

           -      deliver to the Purchaser certificates representing the Shares,
                  duly endorsed,  by the registered  shareholders and Sellers in
                  favor of the Purchaser;

           -      deliver to the Purchaser  original written  resolutions of the
                  board of directors of Xemics SA  consenting to the transfer of
                  the  Shares  to  the   Purchaser,   also   consenting  to  the
                  registration  of the Purchaser as  shareholder in the relevant
                  share register;

           -      deliver  to the  Purchaser  the  complete  and  updated  share
                  registers  of Xemics  SA,  together  with  complete  copies of
                  assignment   deeds  of  all  previous   Share


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                  transfers and  resolutions of the board of directors of Xemics
                  SA evidencing  board approval in respect of each such previous
                  Share transfer since incorporation of Xemics SA;

           -      deliver  to the  Purchaser  resignation  letters  by all board
                  members  of  the  Companies  to  the  Seller  effective  as of
                  Closing,  including a confirmation by each resigning  director
                  to the effect that he holds no claims  whatsoever  against the
                  Companies;

           -      deliver to the Purchaser  written  evidence of  termination of
                  the agreements  pursuant to and in compliance  with art. 3.1.3
                  (a) and (b) hereof,  together with written declarations of all
                  the  relevant  Sellers  confirming  that as of the Closing and
                  beyond  the  Closing  they have no claims  against  any of the
                  Companies  or  the  Purchaser  in  connection  with  any  such
                  agreement terminated before or as of the Closing;

           -      deliver  to the  Purchaser  written  declarations  of all  the
                  lenders  under  the  Shareholders  Loans,  assigning  all such
                  lenders' loans to the Purchaser with effect as of the Closing,
                  showing  the  consent of the  Company to such  assignment  and
                  confirming that such lenders, upon Closing and henceforth will
                  have no claims  against any of the  Companies or the Purchaser
                  in connection with the Shareholders Loans.

3.4.2    Closing Actions by the Purchaser.  At the Closing the Purchaser  shall,
         against  delivery by the Sellers of the items  according to art. 3.4.1,
         pay the Closing Payment as follows:


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             -    the amount  calculated as per art. 2.2A minus USD 5.5 million,
                  into the account of the  Sellers'  Representative  with Credit
                  Suisse,  CH-8000  Zurich,  account number  [xxxx-xxxxxx-xx-x],
                  SWIFT:  CRESCHZZ80A,  IBAN-No:  CH47  0483  5014  3543 9200 1;
                  evidenced   by  delivery   by   Purchaser   to  the   Sellers'
                  Representative  of a copy of the SWIFT  forms  executed by the
                  Purchaser's bank;

           -      the  amount  of USD  5.5  million  into  the  Escrow  Account;
                  evidenced  by  delivery  by  the  Purchaser  to  the  Sellers'
                  Representative  of a  copy  of the  SWIFT  forms  executed  by
                  Purchaser's bank;

3.5        Default  Interest.  If the Closing is delayed beyond the Closing Date
           stated in art.  3.2  hereof  due to the  fault of a Party,  then such
           Party  shall owe  interest of 5 per cent per annum to the other Party
           without  the  need for the  other  party to give  notice  of  default
           provided that such other Party is without fault for such delay.


                                    ARTICLE 4
                                    ---------
                  Representations and Warranties of the Sellers
                  ---------------------------------------------

           The Sellers jointly and severally represent and jointly and severally
           warrant for the Companies as of the time of signing of this Agreement
           and as of the Closing (except where  otherwise  indicated or required
           by the  context)  , to the  exclusion  of  the  statutory  warranties
           ("Gewahrleistungen"), as follows:

4.1        Organization and Qualification.  The Companies are duly organized and
           validly   existing   under  the  laws  under  which  they  have  been
           incorporated  and have full right


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           and authority to own and to operate their properties and to engage in
           the business in which they are now engaged. Schedule 4.1 contains the
           articles of  incorporation  of Xemics SA and of Xemics USA,  Inc., as
           currently in force and as in force at Closing.

4.2        Capital  Structure.  The  Companies  have the  capital  set  forth on
           Schedule  4.2.  The Shares sold  pursuant to art. 2.1  represent  the
           whole share capital of Xemics SA. The Shares have been validly issued
           and are fully  paid in. No  further  capital  other  than as shown on
           Schedule  4.2, no non-voting  stock,  convertible  securities,  stock
           options or similar  rights in the  Companies  and their share capital
           that may have been  created or issued or agreed to be issued prior to
           Closing will be in existence as of or any time after the Closing,  or
           have any effect as of or any time after the Closing.

4.3        Ownership  and  Corporate  Structure.  As of the  Closing  Date,  the
           Sellers  are the sole  owners of and have good and valid title to all
           of the Shares,  free and clear of all liens,  encumbrances,  options,
           charges,  equities and claims arising from any  privilege,  pledge or
           security arrangement. On the Closing Date the Sellers have full right
           and capacity to transfer and sell complete title to the Shares.

           Upon  delivery of all the Shares and of the  documents  mentioned  in
           art. 3.4.1 hereof, the Purchaser will receive good and valid title to
           such  Shares,  free and  clear of all  liens,  encumbrances  or other
           rights of third parties.

           The Company,  directly or  indirectly,  owns all the shares of Xemics
           USA, Inc., as set forth on Schedule 4.3, free and clear of all liens,
           encumbrances,  options, charges, equities and claims arising from any
           privilege, pledge or security arrangement.


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           The Company owns no subsidiary other than Xemics USA, Inc.

4.4        Financial  Statements.  Schedule 4.4 (a)  contains the audited  Group
           Financial  Statements  as of December  31, 2004 and  Schedule 4.4 (b)
           contains the  unaudited  financial  statements of the Companies as of
           April 30,  2005.  These  audited  Group  Financial  Statements  as of
           December  31,  2004 and the  unaudited  financial  statements  of the
           Companies  as of April 30, 2005 are in  accordance  with IFRS and the
           Group Accounting and Consolidation  Principles  described on Schedule
           4.4 (c) and in  accordance  with IFRS and such Group  Accounting  and
           Consolidation   Principles   show  a  true  and  fair   view  of  the
           Consolidated  financial  position  of the  Xemics  Group.  Except  as
           disclosed on Schedule 4.4 (c), the Group Accounting and Consolidation
           Principles have been consistently applied in the business years 2002,
           2003 and 2004 and up to April 30, 2005.

4.5        No  Undisclosed  Liabilities.   The  Companies  have  no  undisclosed
           liabilities  or  obligations,  actual or  potential,  matured  or not
           matured,  which  individually  or in the  aggregate (i) have not been
           stated in or  reflected in or reserved  against in the audited  Group
           Financial  Statements  of  December  31,  2004  or in  the  unaudited
           financial  statements of the Companies as of April 30, 2005, and (ii)
           have not arisen in the ordinary  course of business  consistent  with
           past practices since December 31, 2004.

4.6        Absence of Adverse Changes.  In the period between December 31, 2004,
           and the Closing Date the Companies:

           -      have conducted and will conduct their business in the ordinary
                  course in all material respects and have not and will not have
                  made any unusual  contracts,  contract changes or commitments,
                  and have not and will not have sold, as-


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                                      -31-


                  signed or transferred any tangible or intangible  assets other
                  than in the ordinary course of business;

           -      have  not and  will not have  suffered  any  material  damage,
                  destruction  or loss by fire or  other  casualty  which is not
                  covered by insurance;

           -      have not and will not have  made any  declaration  or  setting
                  aside or payment of any dividend or any other  distribution of
                  profit or any direct or indirect redemption, purchase or other
                  acquisition of any quotas or shares of the Companies;

           -      have not and will not have  increased  the total  compensation
                  payable to their  employees with effect on or after January 2,
                  2005 and have neither adopted and will not have any new profit
                  sharing plan, bonus plan,  pension or benefit plan nor changed
                  any existing plans.

4.7        Permits and  Authorizations.  The Companies  have all the permits and
           authorizations  which are necessary to carry on their business.  With
           the exception of the Change of Control Permits listed on Schedule 4.7
           the  fact  that  this  Agreement  is  executed  and  the  transaction
           contemplated  herein is  consummated  will not lead to the  automatic
           termination of such permits and authorizations and will not give rise
           to any  right  of the  competent  authorities  or  third  parties  to
           terminate such permits and authorizations.

4.8        Claims and Litigation. Except as set forth on Schedule 4.8, there are
           no actions,  suits or  proceedings  pending or  threatened in writing
           against the  Companies  either in court or before any  administrative
           board, agency or commission which individu-


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                  ally could  result in a loss for or claim  against  any of the
                  Companies in excess of CHF 10'000.

4.9        Taxes.  Up to the Closing,  the  Companies  have timely filed all tax
           returns for all Taxes required by law to have been filed and all such
           tax returns  have been  correctly  prepared and are true and complete
           and all Taxes due with regard to income and  activities  up and until
           the month end  immediately  prior to the Closing have been fully paid
           or have been  fully  reserved  for.  Except for the  Specific  Social
           Security Cost 2005 and possibly for the Specific Social Security Cost
           2006 and the related employee charges, the Companies have no and will
           not incur any Tax liability in connection with events prior to and up
           to the Closing.  For the sake of good order,  it is expressly  stated
           that the Parties have agreed that the Specific  Social  Security Cost
           2005 shall not be provided for in the unaudited financial  statements
           of the Companies as of April 30, 2005.

           The Sellers  undertake to indemnify  the  Purchaser and the Companies
           irrespective of the limitation in art. 5.4.3(ii) (disclosure) and the
           Purchaser's  level of knowledge and irrespective of the limitation in
           art. 5.4.1 (De Minimis), but within the other limitations of art. 5.4
           for all  losses,  costs or damage  resulting  from any  breach of the
           representations  and  warranties  of this art.  4.9.  This  includes,
           without limitation, any claims for Taxes which are raised against the
           Companies in connection  with all options  granted to the Sellers and
           to the employees of the Companies by the Company  before the Closing,
           except to the  extent  such Tax  liability  (i) was  provided  in the
           unaudited financial statements of the Companies as of April 30, 2005,
           (ii) is taken into account in the  calculation of the Closing Payment
           or the payments of a First and a Second Purchase Price Adjustment, if
           applicable,  or  (iii)  is a social  security  charge


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           to be borne by employees related to the Specific Social Security Cost
           2005 and possibly the Specific Social Security Cost 2006.

4.10       Agreements  with  Third  Parties.  Except as  disclosed  on  Schedule
           4.10.1,  the  Companies  are  not in  breach  or  default  under  any
           agreements to which they are a party.

           With the  exception of the  agreements  set forth on Schedule  4.10.2
           neither the execution of this Agreement nor the  consummation  of the
           transaction  contemplated  herein will  terminate  any  agreements to
           which the  Companies are a party or give rise to any right of a third
           party to terminate such agreements.

           Schedule 4.10.3 contains a list of all

           -      license agreements;

           -      leases and leasing contracts which provide for annual payments
                  of more than CHF 10'000;

           -      agreements  with  suppliers or  customers  with a term of more
                  than 3 months or a  contract  value of more than CHF 50'000 or
                  which grant customers a payment term of more than sixty days;

           -      contracts with works councils,  labor unions or other employee
                  organizations;

           -      distributorship and agency agreements;

           -      guarantees and sureties granted with respect to any obligation
                  of third parties (including the Seller and any parties related
                  with him);

           -      joint venture and cooperation agreements;

           -      confidentiality agreements;

           -      management and consulting agreements;


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           -      severance contracts with employees, agents and distributors;

           -      non-compete agreements, obliging the Companies;

           -      other  contracts  or  commitments  in excess of CHF  50'000 or
                  which cannot be  terminated on three  months'  notice  without
                  payment of compensation.

           the Companies have concluded.

           Copies of all such  agreements  have been  provided to the  Purchaser
           before the signing of this Agreement. These copies are true, accurate
           and  complete  and these  agreements  are binding and in force on the
           Closing Date and the text of these  agreements  covers the full scope
           of such agreements and there are no other oral or written  agreements
           between the Companies and the third parties concerned.

4.11       Intellectual  Property/Know-how.  As of the signing of this Agreement
           and as of the Closing,  the Companies own or have adequate license to
           use all  the  know-how  and all  patents,  trademarks,  trade  names,
           copyrights and other intellectual property rights which are necessary
           for  the  conduct  of  their  business  as it is  now  conducted.  In
           particular,  all the patents, trade names,  copyrights and trademarks
           listed on Schedule  4.11.1(i)  are valid and owned by the  Companies,
           except as  disclosed on such  Schedule.  Such  patents,  trade names,
           copyrights  and  trademarks  do not  violate  the rights of any third
           party.  Third parties do not have any rights to such  patents,  trade
           names,   copyrights   and   trademarks  and  the  Companies  have  no
           obligations  to disclose such patents,  trade names,  copyrights  and
           trademarks  to any third  parties,  except as  disclosed  on Schedule
           4.11.1(i).

           Schedule  4.11.1(ii) lists all license agreements the Companies are a
           party to in respect of know how and intellectual property licensed to
           any of the  Companies.  As of


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           the signing of this  Agreement  and as of the Closing,  the Companies
           are and will not be in  default  or  breach  of any of these  license
           agreements.

4.12       Employment Matters. Schedule 4.12.1 contains a list of all employment
           agreements of the Companies  concerning  employees  which have either
           (i) signature authority,  (ii) an annual salary exceeding CHF 150'000
           or (iii) whose  employment  agreements  cannot be terminated on three
           months' notice or less without  compensation  or who have a claim for
           compensation  upon a change of  control  over the  Company.  Complete
           copies of these  employment  agreements  have been  delivered  to the
           Purchaser  separately.  The text of these agreements  covers the full
           scope of the  agreements  between  the  Companies  and the  employees
           concerned and there are no other agreements concerning the employment
           relationship.  Sellers, furthermore, warrant that such agreements are
           binding and in force on the Closing Date.

           As of the  Closing  Date,  the Xemics  Group's  total  liability  for
           overtime work does not exceed the amount of CHF 25,000.

           All accrued  pension  claims of the  Companies'  employees are either
           covered by funds of special  foundations,  by insurance  contracts or
           provisions  the  Companies  have  specifically  established  for such
           purpose.

4.13       Pensions.  Up to the end of April 30, 2005,  the Companies have fully
           paid or made  adequate  provisions  for their  legal and  contractual
           liabilities  accrued up to those dates to make  contributions  or pay
           insurance premiums for purposes of funding the existing pension plans
           for the Companies' employees.  The Sellers further warrant that as of
           December 31, 2004,  all accrued  pension  claims are fully covered by
           funds


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           of  special   foundations,   by  insurance  contracts  or  provisions
           specifically established for such purpose.

4.14       Insurance  Policies.  All  insurance  policies of the  Companies  are
           listed on Schedule 4.14.  Except as disclosed on such  Schedule,  all
           listed  policies  are in  full  force  at the  Closing  Date  and the
           Companies have done nothing either by way of action or inaction which
           might  lead to the  cancellation  of such  policies.  Such  insurance
           coverage is adequate  for the risks  associated  with the  Companies'
           activities and assets.

4.15       Compliance with the Law. The Companies are not in material  violation
           of any applicable laws, ordinances, regulations, decrees or orders of
           any government entity.

           In  particular  the  Companies  and  their  plants,   operations  and
           equipment  comply with all applicable  labor,  occupational,  health,
           safety and environmental laws, regulations, decrees and orders and no
           competent  authority has informed the Companies  that they will issue
           any orders addressing non compliance with the law.

4.16       Environmental  Matters. No hazardous substance,  waste,  pollutant or
           other substance regulated under any applicable environmental or waste
           disposal  law,   statute,   regulation,   ordinance  or  other  legal
           requirement  (Environmental Law) is present on, in, under or any real
           property  leased or used by the  Companies.  No  current  or  pending
           Environmental   Law  imposes  or  proposes  to  impose  standards  or
           requirements   which  may  require  the  Companies  to  make  capital
           expenditure  in excess of CHF 25'000 in the  aggregate to comply with
           such standards or  requirements.  Pending as used in the  immediately
           preceding  sentence means an Environmental Law which has been enacted
           and  published,  but has not yet taken effect.  The Companies have no
           liability with respect to cleanup, remediation,  removal or abatement
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           ity to which any waste or  by-product of the Companies has been sent,
           directly  or  indirectly,   for  treatment,   storage,   disposal  or
           recycling.  The Companies are in  compliance  with all  Environmental
           Laws.

4.17       Product   Liability.   Third  parties  have  no  claims,   actual  or
           contingent,  against the  Companies in  connection  with any products
           delivered or services  rendered by the  Companies  before the Closing
           Date.

4.18       Real Property. Schedule 4.18 contains a true and complete list of all
           leases,  subleases and other agreements under which the Companies use
           or  occupy  or have the  right to use or  occupy  any real  property.
           Except as set forth on  Schedule  4.18 (i) the  Companies  are not in
           default in any material  respect under any real property lease and no
           claim of any default  thereunder  has been received by the Sellers or
           the Companies  which have not been cured as of the Closing,  and (ii)
           all rent and other sums and charges  payable by the  Companies  under
           any of the real property leases are current and reflect normal market
           prices.

4.19       Machinery,  Vehicles,  Equipment and Fixtures. Except as set forth on
           Schedule  4.19,  the  Companies  machinery,  vehicles,  equipment and
           fixtures  are in good  condition  and fit for  use,  subject  only to
           customary wear and tear.

4.20       Agreements between Sellers and the Companies.  Schedule 4.20 contains
           a list of all  agreements  between  any of the Sellers and any of the
           Companies  that  are in  effect  as of the  date of  signing  of this
           Agreement,  except  for  employment  agreements.  Copies  of all such
           agreements  (other than employment  agreements) have been provided to
           the Purchaser before the signing of this Agreement.  These copies are
           true,  accurate and complete and the text of these agreements  covers
           the full  scope of such


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           agreements and there are no other oral or written  agreements between
           the  Companies  and  any  of  the  Sellers,   except  for  employment
           agreements.

4.21       Fair Disclosure.  All information  contained in the Schedules to this
           Agreement and all information  otherwise provided to the Purchaser in
           the  context  of this  Agreement  is  accurate  and  complete  in all
           material  respects and not misleading and there are no  circumstances
           in relation to the assets,  business or  financial  condition  of the
           Companies which render any such information misleading.


                                    ARTICLE 5
                                    ---------
                                    Remedies
                                    --------

5.1        Term of  Warranties  and  Representations.  The  representations  and
           warranties  set forth in art. 4 hereof  shall  expire 15 months after
           the Closing Date,  except for the  representations  and warranties in
           art.  4.1,  4.2,  4.3 and 4.9 which shall expire five years after the
           Closing Date. A claim for indemnification pursuant to art. 5.3 hereof
           shall be deemed  timely  raised,  if a  request  for  arbitration  is
           dispatched to the ICC  Secretariat  before the end of the last day of
           the above referred 15 months/five years period.

5.2        Notification  and  Examination  Requirements.  The Parties  waive the
           notification and examination requirements under art. 201 of the Swiss
           Code of  Obligations.  During  the first 15  months  of the  warranty
           period,  a breach of warranty  may be  notified at any time,  but not
           later than on the last day of this 15 months' period. A breach of the
           representations  and  warranties  in art.  4.1,  4.2, 4.3 and 4.9 not
           notified  in the  first 15  months  of the  warranty  period,  can be
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           the Closing; however after the expiry of 15 months since the Closing,
           the  Purchaser  must notify the  Sellers'  Representative  within the
           later of sixty days after the expiry of 15 months  since the  Closing
           or since  the  Purchaser  has  detected  a breach  of  warranty  with
           reasonable certainty.  (For the avoidance of doubt, any breach of the
           warranty in art.  4.1,  4.2, 4.3 and 4.9 which has been detected with
           reasonable  certainty  before the end of 15 months  since the Closing
           must be notified to the Seller' Representative within sixty days from
           the expiry of 15 months  since the  Closing  Date.) Any  notification
           shall  describe in  reasonable  detail the breach of warranty and any
           damage  suffered.  Any breach of warranty  not  properly  notified in
           accordance  with  the  foregoing  shall  be  deemed  waived,  and the
           Purchaser  shall  have no  claims  or other  remedies  whatsoever  in
           connection with such breach.

5.3        Indemnification. (a) Subject to the limitations set forth in art. 5.4
           hereof,  the Sellers  undertake  to indemnify  and hold  harmless the
           Purchaser,  or, as the case may be, the Xemics  Group for the benefit
           of the Purchaser, in respect of any losses, costs or damages incurred
           or suffered by the Xemics  Group as a whole and of any losses,  costs
           or damages incurred or suffered by the Purchaser directly which would
           not have  been  incurred  or  suffered  had the  representations  and
           warranties  of the Sellers  according  to art. 4 hereof been true and
           correct.

           (b) Subject to art. 5.4.2 (Maximum Amounts), any such indemnification
           for the breach of any  representations  or warranties shall primarily
           be paid out of the funds held in the Escrow Account.  If and when and
           to the extent the total amount of accrued claims for  indemnification
           pursuant to this art.  5.3, as  notified  (or, to the extent  already
           received by the Purchaser:  as received),  exceeds the Escrow Amount,
           the Purchaser may collect any such indemnification  amounts in excess
           of the Es-


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           crow Amount  directly  from the Main  Shareholders,  but not from the
           Sellers other than the Main Shareholders.

           (c) To the extent an indemnification  claim of the Purchaser pursuant
           to this  art.  5.3 is  payable  out of the funds  held in the  Escrow
           Account,  a  proportionate  share of  interest  accrued in the Escrow
           Account  up to the  payment  date  shall  be  added  and  paid to the
           Purchaser.  To the extent an  indemnification  claim of the Purchaser
           pursuant to this art. 5.3 is payable by any of the Main Shareholders,
           interest  of five  per  cent  shall  accrue  from  the  date of claim
           notification  up to the date of  payment  and shall be payable to the
           Purchaser.

5.4        Limitations.

5.4.1      De  Minimis.  (a) The  Sellers  shall have no  obligation  to pay any
           amounts pursuant to art. 5.3 hereof unless the Purchaser's  aggregate
           indemnity  claim  pursuant  to art.  5.3  hereof is  higher  than CHF
           100'000  (the  amount  of CHF  100'000  being a  threshold  and not a
           deductible of any total indemnity claim pursuant to this art. 5).

           (b) The Sellers shall have no obligation to pay any amounts  pursuant
           to art.  5.3  hereof  unless  an  individual  matter  of  breach of a
           representation  or warranty results in an individual  indemnity claim
           pursuant  to  art.  5.3  hereof  that  exceeds  CHF  10'000.  For the
           avoidance of doubt,  several claims based on the same set of facts or
           circumstances or origin shall be deemed to be one individual claim.

5.4.2      Maximum  Amount.  The Sellers'  total  liability for  indemnification
           pursuant to art.  5.3 hereof for all  breaches of art. 4 hereof shall
           be limited to USD 15.5 million, subject to the following:


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           (i) if and when the Purchaser's aggregate claim plus accrued interest
           for  indemnification  pursuant to art. 5.3 hereof  exceeds the Escrow
           Amount,  only the Main Shareholders  shall be liable to the Purchaser
           for amounts in excess of the Escrow  Amount,  but none of the Sellers
           other than the Main Shareholders;
           (ii) the total  liability  for  indemnification  pursuant to art. 5.3
           hereof for all breaches of the representations and warranties of art.
           4 other  than art.  4.1,  4.2,  4.3 and 4.9 shall be  limited  to the
           Escrow Amount;
           (iii) if and to the  extent a breach of art 4.1,  4.2,  4.3 or 4.9 is
           notified by the  Purchaser  only after the expiry of 15 months  since
           the Closing,  the liability for  indemnification  extends only to the
           Main Shareholders,  but not to any of the Sellers other than the Main
           Shareholders.

5.4.3      Exclusion of Liability. The Sellers shall not be liable in respect of
           a  claim   of  the   Purchaser   for   breach   of   warranties   and
           representations:

           (i)    if and to the extent  that any  provision,  reserve or expense
                  for the matter giving rise to the claim was taken into account
                  in the audited Group  Financial  Statements as of December 31,
                  2004;  or  in  the  unaudited  financial   statements  of  the
                  Companies as of April 30, 2005.

           (ii)   if and to the extent  that the matter  giving  rise to a claim
                  was  disclosed  in one  of  the  Schedules  attached  to  this
                  Agreement.  In all other  respects,  the  representations  and
                  warranties  herein  and the  Purchasers'  ability to claim for
                  misrepresentations or breach of warranty shall not be excluded
                  or limited by any  knowledge of the Purchaser or its employees
                  and   advisors   whether    resulting   from   due   diligence
                  investigations or otherwise obtained.


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           (iii)  if and to the  extent  that  the  Purchaser  or the  Companies
                  receive  compensation  of any loss or damage  suffered by them
                  under  the  terms of any  insurance  policy  or from any other
                  third party;

           (iv)   if and to the extent that any Tax for which the  Purchaser  or
                  the  Companies are liable is reduced as a result of any matter
                  giving  rise to a  claim  of the  Purchaser  under  the  above
                  representations and warranties;

           (v)    if and to the extent that any damage or loss was caused by any
                  act or omission of the  Purchaser  or - past  Closing - of the
                  Xemics  Group or by the  fact  that  the  Purchaser  or - past
                  Closing - the Xemics  Group have failed to take the  necessary
                  and reasonable steps to mitigate the damage caused by a breach
                  of a representation or warranty;

           (vi)   if and to the extent any damage or loss arises or is increased
                  as a result of the passing of or  amendments  to  legislation,
                  court  or  administrative  practice  after  the  Closing  Date
                  (except for the taking effect of any pending Environmental Law
                  within the meaning of art. 4.16).

5.5        Procedure with Third Parties and Authorities. If a breach of warranty
           exists because any  authorities or third parties raise claims against
           the Companies or if the  Companies in  connection  with such a breach
           have to enforce  any rights or claims  against  authorities  or other
           third parties, the Purchaser shall inform the Sellers' Representative
           without   unreasonable   delay   and   accompanied   by   appropriate
           documentation, and such negotiations and proceedings shall be carried
           on in accordance  with the  reasonable  instructions  of the Sellers'
           Representative who may also take over


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           such  negotiations  and  proceedings and conduct them himself for the
           account of the  Companies if (1) no prejudice or risk results for the
           business of the Companies;  (2) the Sellers' Representative agrees on
           behalf  of the  Sellers  to fully  indemnify  the  Purchaser  and the
           Companies and waives any objections  against the warranty claim,  and
           (3) the  Sellers'  Representative  keeps the  Purchaser  at all times
           fully informed of the negotiations and proceedings.

5.6        Escrow  Agreement  and Escrow  Account.  For  purposes of securing at
           least a portion of Purchaser's indemnification rights under this art.
           5, the Sellers, acting solely through the Sellers Representative, the
           Purchaser  and the  Escrow  Agent  undertake  to enter into an Escrow
           Agreement substantially in form and substance as attached as Schedule
           5.6  hereto.  The  amount  payable by the  Purchaser  into the Escrow
           Account at the Closing  pursuant to art.  3.4.2 hereof shall serve as
           security for the Purchaser for any indemnification  claims under this
           art. 5, as further set forth herein and in the Escrow Agreement.

5.7        Liability  of  Main   Shareholders.   Where  liability  of  the  Main
           Shareholders under this art. 5 extends only to the Main Shareholders,
           each Main Shareholder  shall be liable only for the percentage of the
           total liability set forth for such Main Shareholder on Schedule 5.7.

                                    ARTICLE 6
                                    ---------
                                    Covenants
                                    ---------

6.1        Conduct of  Business.  The  Sellers  shall  secure that from the date
           hereof until the Closing, except with the prior written approval from
           the Purchaser:

           -      no significant action and decision  regarding  investments and
                  employment of managers  which could have a material  effect on
                  the Companies' business or financial situation be taken by the
                  Companies;


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           -      the  Companies do not change the terms and  conditions  of any
                  material agreement or contract they are a party to.

6.2        Free Access to the Companies, the Management and Information.  To the
           extent permitted by applicable laws, the Sellers shall use their best
           efforts that from the date hereof until the Closing, the Purchaser is
           given free access to the Companies and the  management,  their legal,
           tax  and  other  advisors,   auditors,  records  and  documents,  and
           information.  Subject to legal disclosure  obligations of any company
           of the Semtech  Group,  in  particular  of Semtech  Corporation,  the
           Purchaser  agrees  to  keep  all  information  so  received  strictly
           confidential  until  Closing,   respectively  if  this  Agreement  is
           terminated  and Closing  does not take place,  for as long until such
           information  becomes  available  in the public  domain for any reason
           other  than a  breach  of  this  confidentiality  undertaking  by the
           Purchaser.  To the extent the  Purchaser  has  received  or  prepared
           copies  of any  documents,  if the  Closing  does not take  place the
           Purchaser  shall return such copies to the Company or, upon agreement
           between the Purchaser and the Company, shall destroy such copies.

6.3        No  Recourse  of  Sellers  against  Directors  and  Employees  of the
           Companies.  The Sellers agree that in connection  with this Agreement
           neither they nor any of their  Affiliates  (other than the Companies)
           have any rights  against,  and the  Sellers  shall not make any claim
           against,  any  employee,  director,  agent or  officer  of any of the
           Companies in connection with this Agreement or in connection with the
           transactions  contemplated hereby. This art. 6.3 shall,  however, not
           apply to a set-off or  counterclaim  by the  Sellers and it shall not
           apply to rights  and  obligations  among the  Sellers  related to the
           Escrow Account or to recourse actions among the Sellers in connection
           with breaches of  representations  and warranties  hereunder provided
           that such  recourse  action  involves an employee or director only in
           his/her  role as a Seller and not to in his/her  role as  director or
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           not  in  his/her  role  as  an  employee  providing  information  and
           documents  to the  Purchaser  in the  course  of  the  due  diligence
           investigation conducted by the Purchaser.

6.4        No Claim of Sellers  against the  Companies.  The Sellers  agree that
           neither  themselves  nor any of  their  Affiliates  (other  than  the
           Companies)  have any rights  against,  and the Sellers shall not make
           any  claim  against,  any of the  Companies  in  connection  with the
           Sellers  participation  in Xemics SA and  Xemics  USA,  Inc.  and the
           Sellers hereby release the Companies from any such liability.

6.5        Covenant  not to  Compete.  For a period of two years  following  the
           Closing,  each of the  Sellers  13, 19, 20 and 21  undertakes  not to
           engage, directly or indirectly (including through legal entities with
           substantial  control by such  Seller),  within  the United  States of
           America,  the European Union and Switzerland,  in the business of the
           type of the business the Companies are currently  engaged in. Any and
           all existing investments and future, merely, financial investments in
           listed companies of up to no more than two per cent of the capital of
           such company, are exempt.

           For each  violation of the above  covenant any of the Sellers 13, 19,
           20 or 21 violating this covenant shall pay to the Purchaser an amount
           of CHF 500'000 as liquidated  damages plus such additional damages as
           may be incurred by the  Companies  or the  Purchaser.  The payment of
           this sum shall not operate as a waiver of the above obligation.

6.6        Non-Solicitation of Employees.  Each of the Sellers  undertakes,  (i)
           for a period of two years  beyond  the  Closing,  not to  solicit  or
           entice away any  employee of the  Companies  and (ii) for a period of
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           rectly or indirectly  through an Affiliate,  any of the key employees
           listed on Schedule 6.6.

           For each  violation of the above  covenant any Seller  violating this
           covenant  shall pay, to the Purchaser,  liquidated  damages plus such
           additional  damages  as  may be  incurred  by  the  Companies  or the
           Purchaser,  as follows:  an amount of CHF 100'000 for each  violation
           against  (i) above  that is not a  violation  of (ii)  above,  and an
           amount of CHF 1 million for each  violation  against (ii) above.  The
           payment  of any such sum shall not  operate  as a waiver of the above
           obligation.

6.7        Sellers'  Representative.  Each  and  all  of  the  Sellers  herewith
           acknowledge   that   wherever   in  this   Agreement   the   Sellers'
           Representative is named and designated as such, he has full authority
           to  represent  and bind each and all of the  Sellers  by his acts and
           declarations  and has full authority to receive and make on behalf of
           each and all of the Sellers payments, notices and declarations.  Each
           Seller  and the  Sellers'  Representative  herewith  agree  that  the
           Purchaser (i) may rely on all of the Sellers'  Representative's  acts
           and  declarations  as being  binding upon the Sellers as if they were
           such  Seller's own acts and  declarations,  and (ii) may rely without
           further  examination  on  the  Sellers'  Representative  having  full
           authority  to act on behalf of the  Sellers  and, in  particular,  to
           receive  payments from the Purchaser and the Escrow Agent and to make
           payments to the Purchaser,  and to make all and any  declarations and
           to sign  all and any  documents  required  in  connection  with  this
           Agreement and the Escrow Agreement.


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6.8        Earnout Covenant of the Purchaser.

6.8.1      The Purchaser shall procure that during the Earnout Period the Xemics
           Group does not terminate any of the distributors and  representatives
           as well as the  employees  listed on Schedule  6.8.1 except for cause
           ("aus wichtigem Grund" according to Swiss law).

6.8.2      In addition the Purchaser shall procure and shall cause Semtech Group
           to procure:

           (i)    that Semtech  Groups'  regional sales leaders  (Europe,  U.S.,
                  Taiwan and  Korea/Japan) as well as Paul D. Peterson will have
                  a MIT (most important task) assigned in the first full quarter
                  after the  combination  relative to the Xemics Group's product
                  line;

           (ii)   that Xemics  Group will focus its  personnel  on the  business
                  matters of the Xemics  Group and its  Operating  Plan and will
                  operate within the scope of the Operating Plan;

           (iii)  that during the Earnout Period the Xemics Group is financed in
                  a fashion to allow it to perform its  business in the ordinary
                  course.  In  particular,  funds for  capital  expenditures  as
                  outlined  in the  Operating  Plan  related  to  revenue  to be
                  generated  during the Earnout  Period shall be provided by the
                  Purchaser  (as  promptly  as  is   commercially   reasonable);
                  provided,  however, that such capital expenditures are subject
                  to a  commercially  reasonable  justification  made by  Xemics
                  Group  regarding  strategic need,  loading/customer  forecast,
                  revenue generation.


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           (iv)   that the  Purchaser  shall  use  reasonably  best  efforts  to
                  support the Xemics Groups' projects/business as defined in the
                  Operating Plan;

           (v)    that  the   standard   products   of  Xemics   Group  will  be
                  incorporated  into Semtech  Group's  commission and design win
                  incentive plans and sales personnel which will be incentivized
                  to  generate  new  design  wins  for  Xemics  Group   standard
                  products;

           (vi)   that the Semtech  Group will  conduct  training  for its sales
                  organization  on Xemics  Group's  standard  products  within 8
                  weeks of the close of the transaction;

           (vii)  that  NRE  projects  included  in the  Operating  Plan  not be
                  rejected by Xemics  Group and all  performed  but not invoiced
                  work in process for NRE projects shall be accounted as revenue
                  for the purpose of  calculating  the Relevant  Gross  Revenue,
                  with the full sales value;

           (viii) that the Company  provides  the Sellers'  Representative  with
                  quarterly  reporting  on all sales  relevant  for the Relevant
                  Gross  Revenue  with a reasonable  breakdown  per products and
                  customers no later than 15 days after the end of each quarter;

           (ix)   that the Sellers'  Representative and other representatives of
                  the Sellers as designated by the Sellers'  Representative  are
                  given the  opportunity  to hold a telephone  conference  of at
                  least two hours with the management of the Companies after the
                  end  of  each  quarter  for  the  purpose  of  discussing  the
                  quarterly results.


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6.8.3      The Sellers  acknowledge that any information  received by them under
           subclauses 6.8.2 (viii) and (ix) is and will be strictly confidential
           for  as  long  as and  to  the  extent  Semtech  has  not  made  such
           information public.

6.8.4      The  Purchaser  undertakes  to refrain  from taking any  influence on
           business  partners  and  existing  and  prospective  customers of the
           Companies that would result in such existing or prospective customers
           of the Companies  cancelling or postponing  revenue for the Companies
           out of the Earnout  Period,  thus  reducing  revenue of the Companies
           during the Earnout Period.

6.9.       Earnout  Covenant of the Sellers.  Each of the Sellers  undertakes to
           refrain from taking any  influence on business  partners and existing
           and prospective  customers of the Companies that would result in such
           existing  or  prospective  customers  of the  Companies  accelerating
           revenue for the  Companies  into the Earn Out Period,  thus  reducing
           revenue for the  Companies in the months and quarters  following  the
           Earn Out Period.

6.10       Funding of the Purchase Price. The Purchaser has available sufficient
           funds to pay the Purchase Price. Such funds are entirely provided out
           of equity of the Purchaser or of another company of the Semtech Group
           as at  Closing,  or, if and to the  extent  that such funds have been
           raised by way of debt  financing,  the companies of the Semtech Group
           have sufficient cash resources (either readily distributable reserves
           of the  Purchaser  or of another  company of the  Semtech  Group,  or
           expected to be available  through cash flow  generated by  operations
           other than  operations  of companies of the Xemics  Group) to service
           amortization and interest payments on such debt financing.


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                                      -50-


6.11       Payments related to Employee Stock Options.  The Sellers undertake to
           relay  all  payments  which  become  due from  them to  employees  in
           relation to Company stock options held by employees  prior to Closing
           through  the  Company  (the  Company  thus  acting as a mere  payment
           processing agent on behalf of the Sellers),  each respective  payment
           to the Company to be made no later than 10 days after  receipt of the
           respective Purchase Price portions by the Sellers' Representative, so
           that  social  security  charges  and tax at  source  (if  any) can be
           calculated  and  deducted  correctly  and in line with the stamp duty
           ruling (see Article 1,  definition of "Specific  Estimated Stamp Duty
           Cost 2005") by way of  application of the Company's  payroll  system.
           Purchaser   undertakes  to  procure  that  the  Company  makes  these
           calculations and deductions and the related payments to employees and
           Tax authorities.

6.12       Liability for  Violation of Covenants.  Breach of any of the Sellers'
           covenants under this art. 6 by of any of the Sellers make such Seller
           liable for indemnification to the Purchaser without any limitation in
           amount and time for damages, losses and costs caused to the Purchaser
           or any of the Companies as a result of such breach.  Breach of any of
           the  Purchaser's  covenants  under this art. 6 by the Purchaser makes
           the Purchaser liable for  indemnification  to the relevant  Seller(s)
           without any  limitation  in amount and time for  damages,  losses and
           costs caused to the relevant Seller(s) as a result of such breach.


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                                      -51-


                                    ARTICLE 7
                                    ---------
                       Election of new Board of Directors
                       ----------------------------------

         Immediately   upon  the  Closing,   the   Purchaser   shall  conduct  a
         shareholders  meeting of the Company  electing a new board of directors
         of the  Company and  granting  full  discharge  to the  previous  board
         members, subject however to all obligations and liabilities of a Seller
         in connection  with this Agreement for those directors who are a Seller
         hereunder.


                                    ARTICLE 8
                                    ---------
                                      Taxes
                                      -----

8.1        Taxes to be Paid by the Parties.  Any Swiss or foreign Taxes or other
           charges  which  become due in  connection  with the  transfer  of the
           Shares by the Sellers to the Purchaser  under this Agreement shall be
           at the charge of the Party who is liable for such Taxes  pursuant  to
           applicable law.


                                    ARTICLE 9
                                    ---------
                                  Miscellaneous
                                  -------------

9.1        Costs. Each Party bears the fees of its counsel and advisors.

9.2        Notice. Any notice, request,  instruction or other document deemed by
           either  Party to be  necessary  or desirable to be given to the other
           Party,  shall  be in  writing  and  shall  be  telefaxed  or  sent by
           overnight courier addressed as follows:


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                                      -52-


           If to the Purchaser:
           --------------------

           Semtech International AG
           Attn. Administration Manager
           Bionstrasse 4
           CH-9015 St. Gallen
           Fax: +41-71-313-4839

           With a copy to:
           ---------------

           Semtech Corporation
           Attn. Legal Department
           200 Flynn Road
           Camarillo, CA 93012-8790, USA
           Fax: +1-805-480-2157

           If to the Sellers or the Sellers' Representative:
           -------------------------------------------------

           Tat Investments II C.V.
           attn. Mr. Maarten Jacobus Robberts
           Pareraweg 45, Curacao
           Netherlands Antilles
           Fax: +599 9 4343 567

           With a copy to:
           ---------------

           TAT Capital Partners Ltd.
           attn. Thomas Egolf
           Vorderi Bode 2
           Postfach
           CH-5452 Oberrohrdorf
           Fax: +41 56 485 89 80

           Each Party may at any time change its address by giving notice to the
           other Party in the manner described above.


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                                                               Execution Version


                                      -53-


9.3        No Waiver.  The  failure of any of the Parties to enforce a provision
           of this Agreement or any rights with respect  thereto shall in no way
           be considered as a waiver of such  provisions or rights or in any way
           to affect the validity of this Agreement. The waiver of any claim for
           breach of this  Agreement  by a Party  hereto  shall not operate as a
           waiver  of any  claim  pertaining  to  another,  prior or  subsequent
           breach.

9.4        Entire  Agreement.  This  instrument  embodies  the entire  agreement
           between  the  Parties   hereto  with   respect  to  the   transaction
           contemplated  herein  and there  have been and are no  agreements  or
           warranties between the Parties other than those set forth or provided
           for herein.  This Agreement may be amended only in writing  through a
           document signed by all the Parties hereto.

9.5        Binding on Successors. All of the terms, provisions and conditions of
           this Agreement  shall be binding upon and inure to the benefit of the
           Parties hereto and their respective heirs, successors and assigns.

9.6        Announcements.  The Sellers'  Representative  and the Purchaser shall
           consult before issuing press releases or otherwise  making any public
           statements or any statements to the Company's  employees with respect
           to this  Agreement  and shall not issue  any such  press  release  or
           statement   without  the  prior  approval  of  the  other,  it  being
           understood  that the  companies  of the  Semtech  Group,  and Semtech
           Corporation  in  particular,  shall  be free  to  comply  with  legal
           disclosure  requirements  without the prior  approval by the Sellers'
           Representative.


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                                      -54-


                                   ARTICLE 10
                                   ----------
                          Governing Law and Arbitration
                          -----------------------------

10.1       Governing  Law.  This  Agreement  shall be subject to and governed by
           Swiss law.

10.2       Arbitration.  All disputes  arising out of or in connection with this
           Agreement  shall be solely  and  finally  settled  under the Rules of
           Arbitration of the International Chamber of Commerce, Paris (ICC), by
           a panel of three arbitrators appointed in accordance with such Rules.
           The place of arbitration shall be Zurich and the proceedings shall be
           conducted  and any and all awards  shall be rendered in English.  All
           documents in connection with  arbitration  procedures shall be deemed
           duly  served  if  they  are  sent  to  the  address  of  each  Seller
           (respectively, where liability extends only to the Main Shareholders,
           to each Main Shareholder) at its address as set forth first above, or
           at such new address which has been  properly  notified by such Seller
           to the Purchaser in compliance with art. 9.2.


IN WITNESS  WHEREOF,  the Parties thereto have executed this agreement as of the
date and year first above written.



                                                        

The Sellers:                                               The Purchaser:

Place and Date Curacao, Netherland Antilles  June 8, 2005  Place and Date  Zurich, Switzerland   June 17, 2005
               ------------------------------------------                  -----------------------------------
TAT Investments II C.V.                                    Semtech International AG


/s/ J. Maarten                                             /s/ Adrian Sieber
- --------------                                             -----------------
By: Tat Investments Management N.V.,                       By: Adrian Sieber, Administration Manager
represented by Maarten Jacobus Robberts



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                                                               Execution Version


                                      -55-


Place and Date Paris, France  June 13, 2005
               ----------------------------
FCPR Banexi Ventures 3


/s/    Philippe Mere
- --------------------
By:  Philippe Mere


Place and Date Zurich, Switzerland   June 14, 2005
               -----------------------------------
Innoventure Capital AG


/s/    Daniel R. Wenger
- -----------------------
By:  Daniel R. Wenger


Place and Date Lausanne, Switzerland   June 10, 2005
               -------------------------------------
Banque Cantonale Vaudoise


/s/  Laurent Michel                                        /s/  Marc Frank
- -------------------                                        ---------------
By: Laurent Michel                                         By: Marc Frank


Place and Date Geneva, Switzerland  June 13, 2005
               ----------------------------------
Rolex SA


/s/ Xavier Reuse                                           /s/ Jacques Baur
- ----------------                                           ----------------
By: Xavier Reuse                                           By: Jacques Baur


Place and Date Curacao, Netherland Antilles  June 8, 2005
               ------------------------------------------
Phonak AG


/s/       J. Maarten
- --------------------
By:  Phonak AG by J. Maarten under power of attorney


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                                                               Execution Version


                                      -56-


Place and Date Paris, France  June 13, 2005
               ----------------------------
FCPR Banexi Ventures 2


/s/    Philippe Mere
- --------------------
By: Philippe Mere
    -------------


Place and Date Curacao, Netherland Antilles  June 8, 2005
               ------------------------------------------
Vontobel European Ventures


/s/ J. Maarten
- --------------
By: Vontobel European Ventures by J. Maarten under power of attorney


Place and Date Curacao, Netherland Antilles  June 8, 2005
               ------------------------------------------
Manufacture des Montres Rolex SA


/s/ J. Maarten
- --------------
By: Manufacture des Montres Rolex SA by J. Maarten under power of attorney


Place and Date Curacao, Netherland Antilles  June 8, 2005
               ------------------------------------------

/s/ J. Maarten
- --------------
Marie-Cecile Bizet nee Cointreau by J. Maarten under power of attorney


Place and Date Curacao, Netherland Antilles  June 8, 2005
               ------------------------------------------
Richemont International SA


/s/ J. Maarten
- --------------
By: Richemont International SA by J. Maarten under power of attorney


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                                                               Execution Version

                                      -57-


Place and Date Curacao, Netherland Antilles  June 8, 2005
               ------------------------------------------
Caisse de Pension de l'Etat de Neuchatel


/s/ J. Maarten
- --------------
By: Caisse de Pension de l'Etat de Neuchatel by J. Maarten under power of
attorney


Place and Date Curacao, Netherland Antilles  June 8, 2005
               ------------------------------------------

/s/ J. Maarten
- --------------
Alain Dantec by J. Maarten under power of attorney


Place and Date Curacao, Netherland Antilles  June 8, 2005
               ------------------------------------------

/s/ J. Maarten
- --------------
Michel Desbard by J. Maarten under power of attorney


Place and Date Curacao, Netherland Antilles  June 8, 2005
               ------------------------------------------

/s/ J. Maarten
- --------------
Roland Heer by J. Maarten under power of attorney


Place and Date Curacao, Netherland Antilles  June 8, 2005
               ------------------------------------------
The Yasuda Enterprise Development I, Limited Partnership


/s/ J. Maarten
- --------------
By: The Yasuda Enterprise Development I, Limited Partnership by J. Maarten under
power of attorney


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                                                               Execution Version


                                      -58-


Place and Date Curacao, Netherland Antilles  June 8, 2005
               ------------------------------------------

/s/ J. Maarten
- --------------
Evan Rohr by J. Maarten under power of attorney


Place and Date Curacao, Netherland Antilles  June 8, 2005
               ------------------------------------------

/s/ J. Maarten
- --------------
Thomas Hinderling by J. Maarten under power of attorney


Place and Date Curacao, Netherland Antilles  June 8, 2005
               ------------------------------------------

/s/ J. Maarten
- --------------
Jean-Paul Bardyn by J. Maarten under power of attorney


Place and Date Curacao, Netherland Antilles  June 8, 2005
               ------------------------------------------

/s/ J. Maarten
- --------------
Remy Pache by J. Maarten under power of attorney


Place and Date Curacao, Netherland Antilles  June 8, 2005
               ------------------------------------------

/s/ J. Maarten
- --------------
Serge Girardin by J. Maarten under power of attorney


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                                      -59-


The Sellers' Representative in respect of his duties under this Agreement:
TAT Investments II C.V.
Place and Date Curacao, Netherland Antilles  June 8, 2005
               ------------------------------------------

/s/ J. Maarten
- --------------
By: Tat Investments Management N.V.,
represented by Maarten Jacobus Robberts


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                                                               Execution Version


                                      -60-




                    

List of Schedules

Schedule C             Shares and Shareholders of Xemics SA
Schedule 2.3.1         First Purchase Price Adjustment
Schedule 2.3.2         Second Purchase Price Adjustment
Schedule 3.1.2         Filings and submissions
Schedule 3.1.6         Filings and Agreements re certain patents and technology licenses
Schedule 3.3.1         Governmental, administrative and regulatory approvals
Schedule 4.1           Articles of incorporation of the Companies
Schedule 4.2           Capital structure of the Companies
Schedule 4.3           Ownership and corporate structure of Xemics USA
Schedule 4.4 (a)       Audited Group Financial Statements as of Dec. 31, 2004
Schedule 4.4 (b)       Unaudited financial statements of the Companies as of April 30, 2005
Schedule 4.4 (c)       Group Accounting and Consolidation Principles
Schedule 4.7           Change of control permits
Schedule 4.8           Pending and threatening claims and litigation
Schedule 4.10.1        Agreements in respect of which Companies are in default
Schedule 4.10.2        Change of control agreements/ under risk of termination
Schedule 4.10.3        List of agreements
Schedule 4.11.1 (i)    List of intellectual property and know-how
Schedule 4.11.1 (ii)   List of IP/know-how license agreements
Schedule 4.12.1        List of certain employment agreements
Schedule 4.12.2        Overtime work accrual
Schedule 4.14          Insurance policies
Schedule 4.18          Real property leases and agreements
Schedule 4.19          Machinery, vehicles, equipment and fixtures
Schedule 4.20          Agreements between the Sellers and the Companies
Schedule 5.6           Escrow Agreement
Schedule 5.7           Liability of Main Shareholders
Schedule 6.6           Employees not to be solicited or hired by the Sellers
Schedule 6.8.1         Certain  employees,  distributors  and  representatives  not to be terminated by
                       the Companies



The  schedules  to this  agreement  have been  omitted in  accordance  with Item
601(b)(2)  of  Regulation  S-K. The  registrant  agrees to furnish a copy of any
omitted schedule to the Commission upon request.

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