Exhibit 10.1

ASECO CORPORATION
1993 OMNIBUS STOCK PLAN
(Amended and Restated Effective as of June 14, 1996)


     1.   Purpose.  This 1993 Stock Plan (the "Plan") is intended to provide
incentives (a) to the officers and other employees of Aseco Corporation (the
"Company"), its parent (if any) and any present or future subsidiaries of the
Company (collectively, "Related Corporations") by providing them with
opportunities to purchase stock in the Company pursuant to options which
qualify as "incentive stock options" under Section 422 of the Internal Revenue
Code of 1986, as amended (the "Code"), granted hereunder ("ISO" or "ISOs"); (b)
to directors, officers, employees and consultants of the Company and Related
Corporations by providing them with opportunities to purchase stock in the
Company pursuant to options granted hereunder which do not qualify as ISOs
("Non-Qualified Option" or "Non-Qualified Options"); (c) to directors,
officers, employees and consultants of the Company and Related Corporations by
providing them with awards of stock in the Company ("Awards"); and (d) to
directors, officers, employees and consultants of the Company and Related
Corporations by providing them with opportunities to make direct purchases of
stock in the Company ("Purchases").  Both ISOs and Non-Qualified Options are
referred to hereafter individually as an "Option" and collectively as
"Options."  As used herein, the terms "parent" and "subsidiary" mean "parent
corporation" and "subsidiary corporation" as those terms are defined in Section
425 of the Code.

     2.   Administration of the Plan.  (a) The Plan shall be administered by
the Board of Directors of the Company (the "Board").  The Board may appoint a
Compensation Committee (the "Committee") of two or more of its members to
administer this Plan.  In the event the Company registers any class of any
equity security pursuant to Section 12 of the Securities Exchange Act of 1934,
as amended (the "Exchange Act"), each member of the Committee shall be a
"disinterested person" as defined in Rule 16b-3 under the Exchange Act and an
"outside director" as defined in Section 162(m) of the Code.  Subject to
ratification of the grant of each Option or Award and of the authorization of
each Purchase by the Board (if so required by applicable state law), and
subject to the terms of the Plan, the Committee, if so appointed, shall have
the authority to (i) determine the employees of the Company and Related
Corporations (from among the class of employees eligible under paragraph 3 to
receive ISOs) to whom ISOs may be granted, and to determine (from among the
class of individuals and entities eligible under paragraph 3 to receive Non-
Qualified Options and Awards and to make Purchases) to whom Non-Qualified
Options or Awards may be granted and who may make Purchases; (ii) determine the
time or times at which Options or Awards may be granted or Purchases made;
(iii) determine the option price of shares subject to each Option, which price
with respect to ISOs shall not be less than the minimum specified in paragraph
6, and the purchase price of shares subject to each Purchase; (iv) determine
whether each Option granted shall be an ISO or a Non-Qualified Option; (v)
determine (subject to paragraph 7) the time or times when each Option shall
become exercisable and the duration of the exercise period; (vi) determine
whether restrictions such as repurchase options are to be imposed on shares
subject to Options, Awards and Purchases, and the nature of such restrictions,
if any, and (vii) interpret the Plan and prescribe and rescind rules and
regulations relating to it.  If the Committee determines to issue a Non-
Qualified Option, it shall take whatever actions it deems necessary, under
Section 422 of the Code and the regulations promulgated thereunder, to ensure
that such Option is not treated as an ISO.  The interpretation and construction
by the Committee of any provisions of the Plan or of any Option, Award or
authorization for any Purchase granted under it shall be final unless otherwise
determined by the Board.  The Committee may from time to time adopt such rules
and regulations for carrying out the Plan as it may deem best.  No member of
the Board or the Committee shall be liable for any action or determination made
in good faith with respect to the Plan or any Option, Award or authorization
for Purchase granted under it.

     (b)  The Committee may select one of its members as its chairman, and
shall hold meetings at such time and places as it may determine.  Acts by a
majority of the Committee, or acts reduced to or approved in writing by a
majority of the members of the Committee, shall be the valid acts of the
Committee.  All references in this Plan to the Committee shall mean the Board
if there is no Committee so appointed.  From time to time the Board may
increase the size of the Committee and appoint additional members thereof,
remove members (with or without cause), and appoint new members in substitution
therefor, fill vacancies however caused, or remove all members of the Committee
and thereafter directly administer the Plan.

     3.   Eligible Employees and Others.  ISOs may be granted to any officer or
other employee of the Company or any Related Corporation.  Those directors of
the Company who are not employees may not be granted ISOs under the Plan.  Non-
Qualified Options and Awards may be granted to, and Purchases may be made by,
any director (whether or not an employee), officer, employee or consultant of
the Company or any Related Corporation.  The Committee may take into
consideration an optionee's individual circumstances in determining whether to
grant an ISO or a Non-Qualified Option or to authorize a Purchase.  Granting of
any Option or Award to, or any Purchase by, any individual or entity shall
neither entitle that individual or entity to, nor disqualify him from,
participation in any other grant of Options or Awards, or in any other
Purchase.

     4.   Stock.  The stock subject to Options, Awards and Purchases shall be
authorized but unissued shares of Common Stock of the Company, par value $.01
per share (the "Common Stock"), or shares of Common Stock re-acquired by the
Company in any manner. The aggregate number of shares which may be issued
pursuant to the Plan is 1,230,000, subject to adjustment as provided in
paragraph 13.  Any such shares may be issued as ISOs, Non-Qualified Options or
Awards, or to persons or entities making Purchases, so long as the aggregate
number of shares so issued does not exceed such number, as adjusted.  If any
Option granted under the Plan shall expire or terminate for any reason without
having been exercised in full or shall cease for any reason to be exercisable
in whole or in part, the unpurchased shares subject thereto shall again be
available for grants of Options or Awards and for Purchases under the Plan.

     5.   Granting of Options.  Options may be granted under the Plan at any
time on or after January 18, 1993 and prior to January 18, 2003.  Any such
grants of ISOs shall be subject to the receipt, within 12 months of January 18,
1993, of the approval of Stockholders as provided in paragraph 15.  The date of
grant of an Option under the Plan will be the date specified by the Committee
at the time it awards the Option; provided, however, that such date shall not
be prior to the date of award.  The Committee shall have the right, with the
consent of the optionee, to convert an ISO granted under the Plan to a Non-
Qualified Option pursuant to paragraph 16.  Any other provision of the Plan
notwithstanding, the number of shares of Common Stock for which options may be
granted in any fiscal year of the Company to any participant shall not exceed
100,000.

     6.   Minimum Option Price:  ISO Limitations.

          A.   The price per share specified in the agreement relating to each
ISO granted under the Plan shall not be less than the fair market value per
share of Common Stock on the date of such grant.  In the case of an ISO to be
granted to an employee owning stock possessing more than ten percent of the
total combined voting power of all classes of stock of the Company or any
Related Corporation, the price per share specified in the agreement relating to
such ISO shall not be less than 110 percent of the fair market value of Common
Stock on the date of grant.

          B.   In no event shall the aggregate fair market value (determined at
the time the option is granted) of Common Stock for which ISOs granted to any
employee are exercisable for the first time by such employee during any
calendar year (under all stock option plans of the Company and any Related
Corporation) exceed $100,000.

          C.   If, at the time an Option is granted under the Plan, the
Company's Common Stock is publicly traded, "fair market value" shall be
determined as of the last business day for which the prices or quotes discussed
in this sentence are available prior to the date such Option is granted and
shall mean (i) the average (on that date) of the high and low prices of the
Common Stock on the principal national securities exchange on which the Common
Stock is traded, if such stock is then traded on a national securities
exchange; or (ii) the last reported sale price (on that date) of the Common
Stock on the NASDAQ National Market System, if the Common Stock is not then
traded on a national securities exchange; or (iii) the closing bid price (or
average of bid prices) last quoted (on that date) by an established quotation
service for over-the-counter securities, if the Common Stock is not reported on
the NASDAQ National Market System or on a national securities exchange.
However, if the Common Stock is not publicly traded at the time an Option is
granted under the Plan, "fair market value" shall be deemed to be the fair
value of the Common Stock as determined by the Committee after taking into
consideration all factors which it deems appropriate, including, without
limitation, recent sale and offer prices of the Common Stock in private
transactions negotiated at arm's length.

     7.   Option Duration.  Subject to earlier termination as provided in
paragraphs 9 and 10, each Option shall expire on the date specified by the
Committee, but not more than ten years from the date of grant and in the case
of ISOs granted to an employee owning stock possessing more than ten percent of
the total combined voting power of all classes of stock of the Company or any
Related Corporation, not more than five years from date of grant.  Subject to
earlier termination as provided in paragraphs 9 and 10, the term of each ISO
shall be the term set forth in the original instrument granting such ISO,
except with respect to any part of such ISO that is converted into a Non-
Qualified Option pursuant to paragraph 16.

     8.   Exercise of Option.  Subject to the provisions of paragraphs 9
through 12, each Option granted under the Plan shall be exercisable as follows:

          A.   The Option shall either be fully exercisable on the date of
grant or shall become exercisable thereafter in such installments as the
Committee may specify.

          B.   Once an installment becomes exercisable it shall remain
exercisable until expiration or termination of the Option, unless otherwise
specified by the Committee.

          C.   Each Option or installment may be exercised at any time or from
time to time, in whole or in part, for up to the total number of shares with
respect to which it is then exercisable.

          D.   The Committee shall have the right to accelerate the date of
exercise of any installment; provided that the Committee shall not accelerate
the exercise date of any installment of any Option granted to any employee as
an ISO (and not previously converted into a Non-Qualified Option pursuant to
paragraph 16) if such acceleration would violate the annual vesting limitation
contained in Section 422(d) of the Code which provides generally that the
aggregate fair market value (determined at the time the option is granted) of
the stock with respect to which ISOs granted to any employee are exercisable
for the first time by such employee during any calendar year (under all plans
of the Company and any Related Corporation) shall not exceed $100,000.

     9.   Termination of Employment.  If an ISO optionee ceases to be employed
by the Company or any Related Corporation other than by reason of death or
disability as provided in paragraph 10, no further installments of his ISOs
shall become exercisable, and his ISOs shall terminate after the passage of 60
days from the date of termination of his employment, but in no event later than
on their specified expiration dates except to the extent that such ISOs (or
unexercised installments thereof) have been converted into Non-Qualified
Options pursuant to paragraph 16.  Leave of absence with the written approval
of the Committee shall not be

considered an interruption of employment under the Plan, provided that such
written approval contractually obligates the Company or any Related Corporation
to continue the employment of the employee after the approved period of
absence.  Employment shall also be considered as continuing uninterrupted
during any other bona fide leave of absence (such as those attributable to
illness, military obligations or governmental service) provided that the period
of such leave does not exceed 90 days or, if longer, any period during which
such optionee's right to reemployment is guaranteed by statute.  Nothing in the
Plan shall be deemed to give any grantee of any Option or Award, or any person
or entity entitled to make a Purchase, the right to be retained in employment
or other service by the Company or any Related Corporation for any period of
time.  ISOs granted under the Plan shall not be affected by any change of
employment within or among the Company and Related Corporations, so long as the
optionee continues to be an employee of the Company or any
Related Corporation.  In granting any Non-Qualified Option, the Committee may
specify that such Non-Qualified Option shall be subject to the restrictions set
forth herein with respect to ISOs, or to such other termination or cancellation
provisions as the Committee may determine.

     10.  Death; Disability; Dissolution.  If an optionee ceases to be employed
by the Company and all Related Corporations by reason of his death, any Option
of his may be exercised, to the extent of the number of shares with respect to
which he could have exercised it on the date of his death, by his estate,
personal representative or beneficiary who has acquired the Option by will or
by the laws of descent and distribution, at any time prior to the earlier of
the Option's specified expiration date or 180 days from the date of the
optionee's death.

     If an optionee ceases to be employed by the Company and all Related
Corporations by reason of his disability, he shall have the right to exercise
any Option held by him on the date of termination of employment, to the extent
of the number of shares with respect to which he could have exercised it on
that date, at any time prior to the earlier of the Option's specified
expiration date or 180 days from the date of the termination of the optionee's
employment. For the purposes of the Plan, the term "disability" shall have the
meaning assigned to it in Section 22(e)(3) of the Code or any successor
statute.

     In the case of a partnership, corporation or other entity holding a Non-
Qualified Option, if such entity is dissolved, liquidated, becomes insolvent or
enters into a merger or acquisition with respect to which such optionee is not
the surviving entity, such Option shall terminate immediately.

     11.  Assignability.  No Option shall be assignable or transferable by the
optionee except by will or by the laws of descent and distribution, and during
the lifetime of the Optionee each Option shall be exercisable only by him.

     12.  Terms and Conditions of Options.  Options shall be evidenced by
instruments (which need not be identical) in such forms as the Committee may
from time to time approve. Such instruments shall conform to the terms and
conditions set forth in paragraphs 6 through 11 hereof and may contain such
other provisions as the Committee deems advisable which are not inconsistent
with the Plan, including restrictions applicable to shares of Common Stock
issuable upon exercise of Options.  The Committee may from time to time confer
authority and responsibility on one or more of its own members and/or one or
more officers of the Company to execute and deliver such instruments.  The
proper officers of the Company are authorized and directed to take any and all
action necessary or advisable from time to time to carry out the terms of such
instruments.

     13.  Adjustments.  Upon the happening of any of the following described
events, an optionee's rights with respect to Options granted to him hereunder
shall be adjusted as hereinafter provided:

          A.   In the event shares of Common Stock shall be sub-divided or
combined into a greater or smaller number of shares (other than the 1-for-2.4
reverse split of the Common Stock approved by the Board on January 18, 1992) or
if, upon a merger, consolidation, reorganization, split-up, liquidation,
combination, recapitalization or the like of the Company, the shares of Common
Stock shall be exchanged for other securities of the Company or of another
corporation, each optionee shall be entitled, subject to the conditions herein
stated, to purchase such number of shares of common stock or amount of other
securities of the Company or such other corporation as were exchangeable for
the number of shares of Common Stock which such optionee would have been
entitled to purchase except for such action, and appropriate adjustments shall
be made in the purchase price per share to reflect such subdivision,
combination, or exchange.

          B.   In the event the Company shall issue any of its shares as a
stock dividend upon or with respect to the shares of stock of the class which
shall at the time be subject to option hereunder, each optionee upon exercising
an Option shall be entitled to receive (for the purchase price paid upon such
exercise) the shares as to which he is exercising his Option and, in addition
thereto (at no additional cost), such number of shares of the class or classes
in which such stock dividend or dividends were declared or paid, and such
amount of cash in lieu of fractional shares, as he would have received if he
had been the holder of the shares as to which he is exercising his Option at
all times between the date of grant of such Option and the date of its
exercise.

          C.   Notwithstanding the foregoing, any adjustments made pursuant to
subparagraph A or B shall be made only after the Committee, after consulting
with counsel for the Company, determines whether such adjustments with respect
to ISOs will constitute a "modification" of such ISOs as that term is defined
in Section 425 of the Code, or cause any adverse tax consequences for the
holders of such ISOs.  No adjustments shall be made for dividends paid in cash
or in property other than securities of the Company.

          D.   No fractional shares shall actually be issued under the Plan.
Any fractional shares which, but for this subparagraph D, would have been
issued to an optionee pursuant to an Option, shall be deemed to have been
issued and immediately sold to the Company for their fair market value, and the
optionee shall receive from the Company cash in lieu of such fractional shares.

          E.   Upon the happening of any of the foregoing events described in
subparagraphs A or B above, the class and aggregate number of shares set forth
in paragraph 4 hereof which are subject to Options which previously have been
or subsequently may be granted under the Plan shall also be appropriately
adjusted to reflect the events specified in such subparagraphs.  The Committee
shall determine the specific adjustments to be made under this paragraph 13,
and subject to paragraph 2, its determination shall be conclusive.

     14.  Means of Exercising Options.  An Option (or any part or installment
thereof) shall be exercised by giving written notice to the Company at its
principal office address.  Such notice shall identify the Option being
exercised and specify the number of shares as to which such Option is being
exercised, accompanied by full payment of the purchase price therefor either
(a) in United States dollars in cash or by check, or (b) at the discretion of
the Committee, through delivery of shares of Common Stock having fair market
value equal as of the date of the exercise to the cash exercise price of the
Option, or (c) at the discretion of the Committee, by delivery of the
optionee's personal recourse note bearing interest payable not less than
annually at no less than 100% of the lowest applicable Federal rate, as defined
in section 1274(d) of the Code, or (d) at the discretion of the Committee, by
any combination of (a), (b) and (c) above.  If the Committee exercises its
discretion to permit payment of the

exercise price of an ISO by means of the methods set forth in clauses (b) or
(c) of the preceding sentence, such discretion shall be exercised in writing at
the time of the grant of the ISO in question.  The holder of an Option shall
not have the rights of a shareholder with respect to the shares covered by his
Option until the date of issuance of a stock certificate to him for such
shares.  Except as expressly provided above in paragraph 13 with respect to
change in capitalization and stock dividends, no adjustment shall be made for
dividends or similar rights for which the record date is before the date such
stock certificates is issued.

     15.  Term and Amendment of Plan.  This Plan was adopted by the Board on
January 18, 1993, and was approved by the holders of a majority of the
outstanding voting stock of the Company on January 29, 1994.  The Plan was
subsequently amended and restated by the Board effective January 12, 1994,
subject to approval of the amendments thereto by the stockholders of the
Company on or before January 12, 1995.  The Plan shall expire on January 18,
2003 (except as to Options outstanding on that date).  The Board may terminate
or amend the Plan in any respect at any time, except that, any amendment that
(a) increases the total number of shares that may be issued under the Plan
(except by adjustment pursuant to paragraph 13); (b) changes the class of
persons eligible to participate in the Plan, or (c) materially increases the
benefits to participants under the Plan, shall be subject to approval by
Stockholders obtained within 12 months before or after the Board adopts a
resolution authorizing any of the foregoing amendments, and shall be null and
void if such approval is not obtained.  Except as provided in the fourth
sentence of this paragraph 15, in no event may action of the Board of
Stockholders alter or impair the rights of an optionee, purchaser or Award
recipient without his consent, under any Option, Purchase or Award previously
granted to or made by him.

     16.  Conversion of ISOs into Non-Qualified Options:  Termination of ISOs.
The Committee, at the written request of any optionee, may in its discretion
take such actions as may be necessary to convert such optionee's ISOs (or any
installments or portions of installments thereof) that have not been exercised
on the date of conversion into Non-Qualified Options at any time prior to the
expiration of such ISOs, regardless of whether the optionee is an employee of
the Company or a Related Corporation at the time of such conversion.  Such
actions may include, but not be limited to, extending the exercise period or
reducing the exercise price of the appropriate installments of such Options.
At the time of such conversion, the Committee (with the consent of the
Optionee) may impose such conditions on the exercise of the resulting Non-
Qualified Options as the Committee in its discretion may determine, provided
that such conditions shall not be inconsistent with this Plan.  Nothing in the
Plan shall be deemed to give any optionee the right to have such optionee's
ISOs converted into Non-Qualified Options, and no such conversion shall occur
until and unless the Board takes appropriate action.  The Committee, with the
consent of the optionee, may also terminate any portion of any ISO that has not
been exercised at the time of such termination.

     17.  Application of Funds.  The proceeds received by the Company from the
sale of shares pursuant to Options granted and Purchases authorized under the
Plan shall be used for general corporate purposes.

     18.  Governmental Regulation.  The Company's obligation to sell and
deliver shares of the Common Stock under this Plan is subject to the approval
of any governmental authority required in connection with the authorization,
issuance or sale of such shares.

     19.  Withholding of Additional Income Taxes.  The Company, in accordance
with Section 3402(a) of the Code, may, upon exercise of a Non-Qualified Option,
the grant of an Award, the making of a Purchase of Common Stock for less than
its fair market value, or the making of a Disqualifying Disposition (as defined
in paragraph 20) require the optionee exercising such Option, Award recipient
or purchaser to pay additional withholding taxes in respect of the amount that
is considered compensation includible in such person's gross income.


     20.  Notice to Company of Disqualifying Disposition.  Each employee who
receives ISOs shall agree to notify the Company in writing immediately after
the employee makes a disqualifying disposition of any Common Stock received
pursuant to the exercise of an ISO (a "Disqualifying disposition").
Disqualifying Disposition means any disposition (including any sale) of such
stock before the later of (a) two years after the employee was granted the ISO
under which he acquired such stock, or (b) one year after the employee acquired
such stock by exercising such ISO.  If the Employee has died before such stock
is sold, these holding period requirements do not apply and no Disqualifying
Disposition will thereafter occur.

     21.  Governing Laws; Construction.  The validity and construction of the
Plan and the instruments evidencing Options, Awards and Purchases shall be
governed by the laws of The Commonwealth of Massachusetts.  In construing this
Plan, the singular shall include the plural and the masculine gender shall
include the feminine and neuter, unless the context otherwise requires.


DS1-5840