Document:

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                                                                    EXHIBIT 10.1

                               AMENDMENT NO. 2 TO
                   MINI-MED/DENTAL BENEFIT EXTENSION AGREEMENT

         THIS AMENDMENT NO. 2 TO MINI-MED/DENTAL BENEFIT EXTENSION AGREEMENT
(the "Amendment") is made and entered into this 31st day of December, 2002, by
and between Atmos Energy Corporation, a Texas and Virginia corporation (the
"Company"), and CHARLES K. VAUGHAN ("Mr. Vaughan").

         WHEREAS, on May 11, 1994, the Company and Mr. Vaughan entered into that
certain Mini-Med/Dental Benefit Extension Agreement, effective October 1, 1994
(the "Agreement"); and

         WHEREAS, on August 14, 2001, the Company and Mr. Vaughan entered into
that certain Amendment No. 1 to Mini-Med/Dental Benefit Extension Agreement; and

         WHEREAS, the Company and Consultant desire to further amend the
Agreement as set forth below, to clarify that the benefits to be received during
their lifetimes by both Mr. Vaughan (and his eligible dependents) under the
Agreement shall not be subject to the annual and lifetime dollar limitations
contained in the Atmos Energy Corporation Mini-Med Plan, as restated July 1,
1995 (the "Mini-Med Plan").

         NOW THEREFORE, for and in consideration of the premises and other good
and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the parties hereby agree as follows:

         1. Benefits Provided to Mr. Vaughan. Section 1 of the Agreement shall
be amended and restated in its entirety to read as follows:

                  From and after the Effective Date, and for the term of this
         Agreement, the Company shall pay to Mr. Vaughan, in cash (a) the
         benefits he (and his eligible dependents) would be entitled to under
         the terms of the Mini-Med Plan, as in effect from time to time during
         the term of this Agreement, if Mr. Vaughan continued to be a
         participant in the Mini-Med Plan and if he remained a participant in
         the Dental Plan, but in no event less than the benefits provided under
         the terms of the Mini-Med Plan as in effect on the Effective Date, and
         (b) the benefits Mr. Vaughan (and his eligible dependents) would be
         entitled to under the Dental Plan, as in effect from time to time
         during the term of this Agreement, if Mr. Vaughan had remained an
         employee of the Company through the term of this Agreement, but in no
         event less than the benefits provided under the terms of the Dental
         Plan as in effect on the Effective Date. The benefits to be provided to
         Mr. Vaughan (and his eligible dependents) under this Agreement shall
         not be

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         subject to the annual and lifetime benefit limitations on benefits set
         forth in Section 3.2 of the Mini-Med Plan.

         2. No Other Amendment. Except as expressly amended hereby, all of the
other terms, provisions, and conditions of the Agreement are hereby ratified and
confirmed and shall remain unchanged and in full force and effect. To the extent
any terms or provisions of this Amendment conflict with those of the Agreement,
the terms and provisions of the Agreement shall control. This Amendment shall be
deemed a part of, and is hereby incorporated into the Agreement. The Agreement
and any and all other documents heretofore, now, or hereafter executed and
delivered pursuant to the terms of the Agreement are hereby amended so that any
reference to the Agreement shall mean a reference to the Agreement as amended
hereby.

         3. Governing Law. This Amendment shall be governed by, and construed in
accordance with, the laws of the State of Texas.

         4. Counterparts. This Amendment may be executed in counterparts, each
of which will be an original, but all of which together will constitute one and
the same agreement.

         5. Capitalized Terms. Capitalized terms not otherwise defined herein
shall have the meanings ascribed to them in the Agreement.

         IN WITNESS WHEREOF, the parties hereto have executed this Amendment
effective as of the date and year first above written.

                                      ATMOS ENERGY CORPORATION

                                      By: /s/ ROBERT W. BEST
                                          -------------------------------
                                             Robert W. Best
                                             Chairman, President and
                                             Chief Executive Officer

                                          /s/ CHARLES K. VAUGHAN
                                          -------------------------------
                                             CHARLES K. VAUGHAN<PAGE>

                                                                   EXHIBIT 10.01

                              EMPLOYMENT AGREEMENT

         This Employment Agreement (the "Agreement") is made and entered into in
Chelmsford, Massachusetts by and between Brooks-PRI Automation, Inc., a Delaware
corporation (the "Company") and Edward C. Grady (the "Executive"), as of January
31, 2003.

                                    RECITALS

         1.       The Company desires to employ Executive as President and Chief
Operating Officer of the Company upon the terms and conditions set forth herein.

         2.       In consideration of the employment to be provided hereby and
the amounts to be paid as provided herein, Executive desires to be employed by
the Company and to agree with the Company as further provided herein.

         3.       In consideration of the employment to be provided hereby and
the amounts to be paid as provided herein and the Indemnification Agreement
attached hereto as Exhibit A, the Executive has entered into the Executive
Non-Competition and Proprietary Information Agreement attached hereto as Exhibit
B.

         For and in consideration of the mutual promises, terms, provisions and
conditions contained in this Agreement, the parties hereby agree as follows:

1.       Duties.

         1.1.     President and Chief Operating Officer. Beginning on February
3, 2003 (the "Effective Date"), the Company shall employ Executive during the
Employment Term (as defined below) as President and Chief Operating Officer of
the Company. Executive shall report to the Company's chief executive officer
(the "Chief Executive Officer). Executive shall have general management and
control of the business, affairs and property of the Company and its direct and
indirect subsidiaries and shall perform the duties of such office as are
provided for in the bylaws of the Company subject to the general supervision and
direction of the Chief Executive Officer and the Company's board of directors
(the "Board of Directors").

         1.2.     Board of Directors. Executive is expected to participate in
meetings of the Board of Directors, subject to the direction of the Board of
Directors. No later than six months from the Effective Date, the Board of
Directors will appoint Executive to become a member of the Board of Directors.

2.       Term. Subject to Section 6 and the termination provisions contained
therein, the term of the Executive's employment under this Agreement shall begin
on the Effective Date and end two years from the Effective Date (the "Employment
Term"). The Employment Term shall automatically renew for successive one year
periods subject to each parties' ability to terminate the Agreement by providing
notice in accordance with Section 13 prior to the end of the current Employment
Term. The following officers, if such positions are staffed, shall report
directly to

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the Executive: Chief Technology Officer, Senior Vice President of Corporate
Marketing, Senior Vice President of Hardware Automation Group, Senior Vice
President of Sales and Customer Service, Chief Financial Officer, Senior Vice
President of Software Systems Group, Senior Vice President of Global Operations,
Vice President of Quality Assurance, Senior Vice President of Human Resources
and Senior Vice President of New Industry Business Development. The General
Counsel will not report to Executive, but will instead report directly to the
Chief Executive Officer.

3.       Other Activities. Subject to the terms and conditions of attached
Exhibit B, Executive may serve on corporate, civic, charitable boards or
committees, fulfill speaking engagements, teach at educational institutions or
manage personal investments; provided that such activities do not individually
or in the aggregate interfere or conflict with the performance of his duties or
obligations under this Agreement.

4.       Performance. During the Employment Term, Executive shall use his
business judgment, skill and knowledge for the advancement of the Company's
interests and to discharge his duties and responsibilities hereunder. Executive
shall perform and discharge, faithfully, diligently and to the best of his
ability, his duties and responsibilities hereunder. Subject to Section 3 hereof,
Executive shall devote substantially all of his working time and efforts to the
business and affairs of the Company.

5.       Compensation and Benefits.

         5.1.     Base Salary. As consideration for Executive's services
performed during the Employment Term, the Company agrees to pay Executive a base
salary of $350,000 per year (the "Base Salary") payable, in accordance with the
normal payroll practices of the Company for its executives, and subject to
federal and state tax withholding. The Base Salary shall be reviewed annually by
the compensation committee of the Board of Directors (the "Compensation
Committee") and adjusted as determined by the Compensation Committee (the Base
Salary as adjusted from time to time shall be referred to as the "Current Base
Salary").

         5.2.     Annual Management Bonus. Executive shall be eligible to
receive cash bonuses each year from the Company determined by the Chief
Executive Officer and the Compensation Committee in the manner set forth on
Schedule 1 hereto (the "Annual Management Bonus"). The Annual Management Bonus
shall be reviewed at least annually by the Compensation Committee. Any such
Annual Management Bonuses paid to Executive shall be in addition to the Current
Base Salary.

         5.3.     Deferred Sign-on Bonus. Subject to Sections 6 and 7 hereof,
the Executive shall receive a bonus payment of $180,000 on January 1, 2004 (the
"First Deferred Sign-on Bonus"). Subject to Sections 6 and 7 hereof, the
Executive shall receive a bonus payment of $300,000 on January 1, 2005 (the
"Second Deferred Sign-on Bonus"). The First Deferred Sign-on Bonus and Second
Deferred Sign-on Bonus are collectively referred to herein as the "Deferred
Sign-on Bonuses." Any such Deferred Sign-on Bonuses paid to Executive shall be
in addition to the Annual Management Bonus, if any.

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         5.4.     Option Grants. Subject to the approval of the Compensation
Committee, the Company will grant Executive an option to purchase 200,000 shares
of Company common stock (the "Common Stock"), effective as of the Effective Date
(the "Initial Grant"). The Initial Grant shall be exercisable at a price equal
to the closing price of the Common Stock on the Nasdaq National Market on the
date the Initial Grant is approved by the Compensation Committee. The
Compensation Committee may at any time in its discretion consider Executive for
possible future grants of options (such options collectively, the "Subsequent
Grants") and, commencing in the fiscal year 2004, shall at least once during
each fiscal year consider Executive for a Subsequent Grant. The Compensation
Committee is expected to consider a number of shares between 50,000 to 100,000
for each such Subsequent Grant (as adjusted for stock splits, stock dividends,
recapitalizations and the like). The Initial Grant and Subsequent Grants shall
be subject to the terms and conditions set forth in the governing option
agreement, provided that 25% of the shares that are subject to the Initial Grant
shall vest on the one year anniversary of the grant date. The remaining shares
subject to the Initial Grant shall vest at a rate of 6.25% on the last day of
each three month period following the first year anniversary date of the grant,
subject to the terms and conditions contained herein. For example, if the
Executive had become employed on January 13, 2003 and remains employed through
April 30, 2004, he will have vested in a total of 31.25% of the shares under the
Initial Grant; 25% of the shares will have vested on January 13, 2004, and 6.25%
will have vested on April 13, 2004.

         5.5.     Benefits. During the Employment Term, Executive shall be
eligible for participation in and shall receive all benefits available under the
Brooks Automation, Inc. 401(k) Plan the Company's welfare benefit plans,
practices, policies and programs (including disability, salary continuance,
group life, accidental death and travel accident insurance plans and programs)
normally available to other senior executives.

         5.6.     Relocation. The Company shall provide the Executive $180,000
as compensation for his relocation from California to Massachusetts and
reimburse Executive for the following reasonable, customary and actual expenses:
(i) moving expenses related to moving Executive's and his family's personal
effects, furnishings and one automobile; (ii) closing costs and mortgage points
associated with the purchase of Executive's principal residence in New England;
and (iii) temporary living expenses from the time of relocation until the
purchase of a principal residence in New England.

         5.7.     Business Expenses. Executive shall be entitled to receive
prompt reimbursement during the Employment Term for all reasonable
employment-related expenses incurred or paid by him in the performance of his
services, subject to reasonable substantiation and documentation.

         5.8.     Corporate Opportunities. Executive agrees that he will first
present to the Chief Executive Officer or the Board of Directors, for acceptance
or rejection on behalf of the Company, any opportunity to create or invest in
any company which is or will be involved in providing or furnishing equipment,
systems, components, products, software or services to customers in industries
that the Company serves (including, without limitation, the semiconductor and
flat panel display industries) which comes to his attention and in which he, or
any affiliate, might desire to participate. If the Board of Directors rejects
the same or fails to act

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thereon in a reasonable time, Executive shall be free to invest in, participate
or present such opportunity to any other person or entity.

6.       Termination Events.

         6.1.     Long-Term Disability. This Agreement shall terminate and any
and all rights and obligations of the Company and Executive hereunder shall
cease and be completely void except as specifically set forth in this Agreement,
upon the death or Long-Term Disability (as defined below) of Executive.

                  6.1.1.   Long-Term Disability. For purposes of this Agreement,
"LONG-TERM DISABILITY" shall mean any disability of Executive that prevents
Executive from devoting to the business of the Company his best efforts, skill
and attention, for a period of 180 consecutive days.

         6.2.     Termination by the Company. At the election of the Company,
this Agreement shall terminate and any and all rights and obligations of the
Company and Executive hereunder shall cease and be completely void except as
specifically set forth in this Agreement, upon the earliest to occur of the
following: (i) the termination of Executive by the Company with Cause (as
defined below) under this Agreement and delivery of written notice in accordance
with Sections 6, 7 and 13 or (ii) the termination of Executive by the Company
without Cause upon delivery of written notice in accordance with Sections 6, 7
and 13.

                  6.2.1.   Cause. For purposes hereof, "CAUSE" shall include,
without limitation, the occurrence of any of the following events during the
Employment Term of this Agreement:

                  (i)      Executive's conviction of, or the entry of a plea of
                  guilty or nolo contendere to any misdemeanor involving moral
                  turpitude or any felony;

                  (ii)     fraud, embezzlement, or similar act of dishonesty,
                  unauthorized disclosure, attempted disclosure, use or
                  attempted use of confidential information; acts prejudicial to
                  the interest or reputation of the Company; or falsification,
                  concealment or distortion of management information;

                  (iii)    material misrepresentation in connection with the
                  Executive's application for employment with the Company;

                  (iv)     conduct by the Executive constituting an act of moral
                  turpitude, or acts of physical violence while on duty;

                  (v)      the Executive's willful failure or refusal to perform
                  the duties on behalf of the Company which are consistent with
                  the scope and nature of the Executive's responsibilities, or
                  otherwise to comply with a lawful directive or policy of the
                  Company;

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                  (vi)     any act of gross negligence, gross corporate waste or
                  disloyalty by the Executive to the Company or the commission
                  of any intentional tort by the Executive against the Company;
                  or

                  (vii)    material breach of this Agreement by the Executive.

         6.3.     Termination by Executive. At the election of the Executive,
this Agreement shall terminate and any and all rights and obligations of the
Company or Executive hereunder shall cease and be completely void except as
specifically set forth in this Agreement, upon the earliest to occur of the
following: (i) the Executive's resignation for Good Reason (as defined below);
provided that Executive shall have first provided the Company with written
notice in accordance with Section 13 of the occurrence of such action he
believes constitutes Good Reason and the Company shall have failed to remedy
such action within thirty (30) days of its receipt of such notice; or (ii) the
Executive's resignation without Good Reason upon delivery of written notice in
accordance with Section 13.

                  6.3.1.   Good Reason. "GOOD REASON" shall mean the Company has
taken action that serves to materially, adversely change Executive's status by a
reduction in title or a material reduction in his duties without Executive's
consent.

                  6.4.     Termination following a Change of Control. This
Agreement shall terminate and any and all rights and obligations of the Company
or Executive hereunder shall cease and be completely void except as specifically
set forth in the Agreement upon the Executive's resignation for Good Reason or
termination by the Company without Cause following a Change of Control (as
defined below).

                  6.4.1.   Change of Control. For purposes hereof a "CHANGE OF
CONTROL" of the Company shall be deemed to have occurred if:

                  (i)      any "person" or group of affiliated "persons" (as
                  such term is used in Sections 13(d) and 14(d) of the
                  Securities Exchange Act), becomes the "beneficial owner" (as
                  defined in Rule 13d-3 under the Exchange Act), directly or
                  indirectly, of securities representing more than 49% of the
                  total voting power represented by the Company's then
                  outstanding voting securities (except in connection with a
                  merger, which the Board approves and that the Executive
                  consents to and approves or a merger in respect of which,
                  pursuant to Section 251(f) of the Delaware General Corporation
                  law, as now in effect and as the same may be amended from time
                  to time, no vote of the stockholders of Company is required);

                  (ii)     the Board approves, and the stockholders of the
                  Company approve, if necessary, a plan of complete liquidation
                  of the Company, or the Company sells or otherwise disposes of
                  substantially all of its assets to any "person" or group of
                  affiliated "persons" (as such term is used in Sections 13(d)
                  and 14(d) of the Exchange Act); or

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                  (iii)    individuals who, as of the date hereof, constitute
                  the Company Board (the "Incumbent Company Board") cease for
                  any reason to constitute at least a majority of the Company
                  Board, provided that any person becoming a director subsequent
                  to the date hereof whose election, or nomination for election
                  by Company's stockholders, was approved by a vote of at least
                  a majority of the directors comprising the Incumbent Company
                  Board shall be, for purposes of this Agreement, considered as
                  though such person were a member of the Incumbent Company
                  Board.

         6.5.     Termination Date. The term "Termination Date" shall mean the
earlier of (i) the expiration of the Employment Term or (ii) if the date
Executive's services are terminated (A) by his death, then the date of his
death, or (B) by his Long-Term Disability, then the 180th day of such
disability, or (C) for any other reason, then the date on which such termination
is to be effective pursuant to the notice of termination to be given by the
party terminating the employment relationship.

7.       Effect of Termination.

         7.1.     Termination for Death or Disability. It is expressly
acknowledged and agreed that if Executive's employment shall be terminated due
to Executive's death or Long-Term Disability, all of the obligations under
Sections 1 through 5 of the Company and Executive shall cease except that the
Company shall pay, or provide the following benefits, to Executive without
further recourse or liability to the Company:

                  (i)      an amount equal to the unpaid portion of Executive's
                           Current Base Salary earned through the Termination
                           Date;

                  (ii)     an amount equal to the prorata Annual Management
                           Bonus for the completed portion of the current annual
                           pay period where the total Annual Management Bonus is
                           determined in accordance with Section 5.2 by
                           annualizing the results of the fiscal quarter ending
                           immediately prior to the Termination Date (for
                           example if the EBIT (defined as Income from
                           Operations) as a percentage of Revenues for the
                           fiscal quarter ending immediately prior to the
                           Termination Date is 15% and the Termination Date is
                           the end of the seventh month of the current annual
                           pay period then Executive would receive a prorata
                           Annual Management Bonus equal to $157,500; calculated
                           by multiplying $270,000 (the Annual Management Bonus
                           amount corresponding to 15% on Schedule 1) by
                           7/12ths);

                  (iii)    an amount equal to any unpaid Deferred Sign-on
                           Bonuses due on or before the Termination Date; and

                  (iv)     an amount equal to the value of Executive's vacation
                           accrued as of the Termination Date.

         7.2.     Termination by the Company.

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                  7.2.1.   Termination by the Company for Cause. It is expressly
acknowledged and agreed that if Executive is terminated by the Company for
Cause, all of the obligations under Sections 1 through 5 of the Company and
Executive shall cease except that the Company shall pay immediately after the
Termination Date the following amounts to the Executive without further recourse
or liability to the Company:

                  (i)      an amount equal to the sum of Executive's Current
                           Base Salary earned through the Termination Date; and

                  (ii)     an amount equal to the value of Executive's vacation
                           accrued as of the Termination Date.

                  7.2.2.   Termination By the Company Without Cause. It is
expressly acknowledged and agreed that if Executive's employment shall be
terminated by Company for any reason, except as set forth in Sections 6.1,
6.2(i) and 6.4, at any time prior to the expiration of the Employment Term, then
all of the obligations under Sections 1 through 5 of the Company and Executive
shall cease except that the Company shall pay, or provide the following
benefits, to Executive without further recourse or liability to the Company:

                  (i)      an amount equal to the unpaid portion of Executive's
                           Current Base Salary earned through the Termination
                           Date;

                  (ii)     the prorata portion of Executive's then current
                           Current Base Salary for the remaining balance of the
                           Employment Term;

                  (iii)    an amount equal to the prorata Annual Management
                           Bonus for the completed portion of the current annual
                           pay period where the total Annual Management Bonus is
                           determined in accordance with Section 5.2 by
                           annualizing the results of the fiscal quarter ending
                           immediately prior to the Termination Date (for
                           example if the EBIT (defined as Income from
                           Operations) as a percentage of Revenues for the
                           fiscal quarter ending immediately prior to the
                           Termination Date is 15% and the Termination Date is
                           the end of the seventh month of the current annual
                           pay period then Executive would receive a prorata
                           Annual Management Bonus equal to $157,500; calculated
                           by multiplying $270,000 (the Annual Management Bonus
                           amount corresponding to 15% on Schedule 1) by
                           7/12ths);

                  (iv)     an amount equal to any unpaid Deferred Sign-on
                           Bonuses;

                  (v)      an amount equal to the value of Executive's vacation
                           accrued as of the Termination Date; and

                  (vi)     the vesting of the options subject to the Initial
                           Grant ("Initial Grant Options") shall accelerate such
                           that Initial Grant Options to purchase a total of
                           100,000 shares of the Common Stock (as adjusted for
                           stock splits, stock dividends, recapitalizations and
                           the like) shall be vested in full as of

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                           the Termination Date and Executive will have 90 days
                           beginning on the Termination Date to exercise such
                           Initial Grant Options.

         7.3.     Termination by Executive

                  7.3.1.   Termination by Executive Without Good Reason. It is
expressly acknowledged and agreed that if Executive resigns without Good Reason,
then all of the obligations under Sections 1 through 5 of the Company and
Executive shall cease except that the Company shall pay, or provide the
following benefits, to Executive without further recourse or liability to the
Company:

                  (i)      an amount equal to the unpaid portion of Executive's
                           Current Base Salary earned through the Termination
                           Date; and

                  (ii)     an amount equal to the value of Executive's accrued
                           vacation pay.

                  7.3.2.   Termination by Executive For Good Reason. It is
expressly acknowledged and agreed that if Executive's employment shall be
terminated because the Executive resigns for Good Reason at any time prior to
the expiration of Employment Term, except as set forth in Section 6.4, then all
of the obligations under Sections 1 through 5 of the Company and Executive shall
cease except that the Company shall pay, or provide the following benefits, to
Executive without further recourse or liability to the Company:

                  (i)      an amount equal to the unpaid portion of Executive's
                           Current Base Salary earned through the Termination
                           Date;

                  (ii)     the pro rata portion of Executive's then current
                           Current Base Salary for the remaining balance of the
                           Employment Term;

                  (iii)    an amount equal to the prorata Annual Management
                           Bonus for the completed portion of the current annual
                           pay period where the total Annual Management Bonus is
                           determined in accordance with Section 5.2 by
                           annualizing the results of the fiscal quarter ending
                           immediately prior to the Termination Date (for
                           example if the EBIT (defined as Income from
                           Operations) as a percentage of Revenues for the
                           fiscal quarter ending immediately prior to the
                           Termination Date is 15% and the Termination Date is
                           the end of the seventh month of the current annual
                           pay period then Executive would receive a prorata
                           Annual Management Bonus equal to $157,500; calculated
                           by multiplying $270,000 (the Annual Management Bonus
                           amount corresponding to 15% on Schedule 1) by
                           7/12ths);

                  (iv)     an amount equal to any unpaid Deferred Sign-on
                           Bonuses;

                  (v)      an amount equal to the value of Executive's vacation
                           pay accrued as of the Termination Date; and

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                  (vi)     the vesting of the options subject to the Initial
                           Grant ("Initial Grant Options") shall accelerate such
                           that Initial Grant Options to purchase a total of
                           100,000 shares of the Common Stock (as adjusted for
                           stock splits, stock dividends, recapitalizations and
                           the like) shall be vested in full as of the
                           Termination Date and Executive will have 90 days
                           beginning on the Termination Date to exercise such
                           Initial Grant Options.

         7.4.     Termination following a Change of Control. It is expressly
acknowledged and agreed that if Executive's employment shall be terminated
because the Executive resigns for Good Reason or is terminated by the Company
without Cause within one year following a Change of Control, all of the
obligations under Sections 1 through 5 of the Company and Executive shall cease
except that the Company shall pay, or provide the following benefits, to
Executive without further recourse or liability to the Company:

                  (i)      an amount equal to the unpaid portion of Executive's
                           Current Base Salary earned through the Termination
                           Date;

                  (ii)     the pro rata portion of Executive's then current
                           Current Base Salary for the remaining balance of the
                           Employment Term;

                  (iii)    an amount equal to the value of Executive's vacation
                           accrued as of the Termination Date;

                  (iv)     the vesting of the options subject to the Initial
                           Grant ("Initial Grant Options") shall accelerate such
                           that Initial Grant Options to purchase a total of
                           100,000 shares of the Common Stock (as adjusted for
                           stock splits, stock dividends, recapitalizations and
                           the like) shall be vested in full as of the
                           Termination Date and Executive will have 90 days
                           beginning on the Termination Date to exercise such
                           Initial Grant Options, and

                  (v)      an amount equal to any unpaid Deferred Sign-on
                           Bonuses.

         7.5.     280G. In the event that the Executive shall become entitled to
payment and/or benefits provided by this Agreement or any other amounts in the
"nature of compensation" (whether pursuant to the terms of this Agreement or any
other plan, arrangement or agreement with the Company, any person whose actions
result in a change of ownership or effective control covered by Section
280G(b)(2) of the Code or any person affiliated with the Company or such person)
as a result of such change in ownership or effective control (collectively the
"Company Payments"), and such Company Payments would be subject to the tax
imposed by Section 4999 of the Code (together with any similar tax that may
hereafter be imposed by any taxing authority, the "Excise Tax") the Executive
shall be solely responsible for the payment in full of any such Excise Tax.

8.       Noncompetition Agreement. Concurrent with the execution of this
Agreement, Executive and the Company entered into the Non-Competition and
Proprietary Information Agreement attached hereto as Exhibit B.

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9.       Assignment. Neither the Company nor Executive may make any assignment
of this Agreement or any interest herein, by operation of law or otherwise,
without the prior written consent of the other party; provided, however, that
the Company may assign its rights and obligations under this Agreement without
the consent of Executive if the Company shall hereafter effect a reorganization,
consolidate with, or merge into any other entity or transfer all or
substantially all of its properties or assets to any other person or entity.
This Agreement shall be binding upon and inure to the benefit of the Company,
Executive and their respective successors, executors, administrators, heirs and
permitted assigns.

10.      Indemnification. Concurrent with the execution of this Agreement,
Executive and the Company entered into the Indemnification Agreement attached
hereto as Exhibit A.

11.      Waiver. The waiver by any party hereto of a breach of any provision of
this Agreement by any other party will not operate or be construed as a waiver
of any other or subsequent breach by such other party.

12.      Severability. The parties agree that each provision contained in this
Agreement shall be treated as a separate and independent clause, and the
unenforceability of any one clause shall in no way impair the enforceability of
any of the other clauses herein. Moreover, if one or more of the provisions
contained in this Agreement shall for any reason be held to be excessively broad
as to scope, activity or subject, such provisions shall be construed by the
appropriate judicial body by limiting and reducing it or them, so as to be
enforceable to the extent compatible with the applicable law.

13.      Notices. Any notice or other communication in connection with this
Agreement shall be deemed to be delivered if in writing, addressed as provided
below and actually delivered at said address:

         If to Executive, to him at the following address:

                  Edward C. Grady
                  1443 Prince Edward Way
                  Sunnyvale, CA  94087

         If to the Company, to it at the following address:

                  Brooks-PRI Automation, Inc.
                  15 Elizabeth Drive
                  Chelmsford, MA  01824
                  Attn:  Senior Vice President Human Resources

         or to such other person or address as to which either party may notify
the other in accordance with this Section 13.

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<PAGE>

14.      Medical Benefits. Executive shall be eligible for participation in the
Company's family medical, prescription and dental benefits normally available to
other senior executives until Executive becomes 62 years old.

15.      Arbitration. In the event of a dispute between the parties as to the
meaning or interpretation of this Agreement, or the performance of either party
hereunder, either party may submit the matter for arbitration in Boston,
Massachusetts, to the American Arbitration Association, which is expressly
permitted and required hereby, to include the reasonable costs of arbitration,
including attorney fees, of the prevailing party, in its decision. If the
nonprevailing party should then fail to comply with such decision, the
reasonable costs of enforcement, including attorneys' fees, shall be paid to the
prevailing party. Such costs shall specifically include any judicial proceeding
to confirm such decision.

16.      Applicable Law. This Agreement shall be interpreted and construed in
accordance with the laws of the Commonwealth of Massachusetts.

17.      Remedies. Executive acknowledges that a breach of any of the promises
or agreements contained herein could result in irreparable and continuing damage
to the Company for which there may be no adequate remedy at law, and the Company
shall be entitled to seek injunctive relief and/or a decree for specific
performance, and such other relief as may be proper (including monetary damages
if appropriate).

18.      Integration. This Agreement, the Indemnification Agreement attached
hereto as Exhibit A and the Executive Non-Competition and Proprietary
Information Agreement attached hereto as Exhibit B form the entire agreement
between the parties hereto with respect to the subject matter contained in this
Agreement and shall supersede all prior agreements, oral discussions, promises
and representations regarding employment, compensation, severance or other
payments contingent upon termination of employment, whether in writing or
otherwise.

19.      Documents and Materials. Upon termination of this Agreement or at any
other time upon the Company's request, Executive will promptly deliver to the
Company, without retaining any copies, all documents and other materials whether
in paper or electronic form or resident on any other media, furnished to him by
the Company, prepared by him for the Company or otherwise relating to the
Company's business, including, without limitation, all written and tangible
material in his possession incorporating any proprietary information.

20.      Absence of Conflicting Obligations. Executive represents that he is not
bound by any agreement or any other existing or previous business relationship
which conflicts with or prevents the full performance of his duties and
responsibilities during the Employment Term. Executive further represents that
his obligations under this Agreement do not breach and will not breach any
agreement to keep in confidence proprietary information, knowledge or data
acquired by him.

21.      Survival. Notwithstanding any provisions of this Agreement to the
contrary, the obligations of Executive and the Company pursuant to Sections 6
through 22 hereof shall each survive termination of this Agreement.

                                       11
<PAGE>

22.      Effect of Headings. Any title of a section heading contained herein is
for convenience of reference only, and shall not affect the meaning of
construction or any of the provisions hereof.

         IN WITNESS WHEREOF, the parties hereto have hereunto set their hands,
as of the date first above written.

                                      /s/ Edward C. Grady
                                      ------------------------------------------
                                      Edward C. Grady

                                      BROOKS-PRI AUTOMATION, INC.

                                      By: /s/ Robert J. Therrien
                                          --------------------------------------
                                            Robert J. Therrien
                                            Chief Executive Officer

                                       12

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