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                                                                   Exhibit 10.15

                              KEY TECHNOLOGY, INC.

                         PROFIT SHARING AND 401(k) PLAN
                                2001 RESTATEMENT

                                 AMENDMENT NO. 1

          Pursuant to Section 10.2 of the Key Technology, Inc. Profit Sharing
and 401(k) Plan, 2001 Restatement (the "Plan"), the sponsoring employer hereby
amends the Plan as follows:

     1.   Effective Date of Increase in Amount of Involuntary Cash-out. The
          effective date of the amendment to Section 5.3.2, on page 1 of the
          Plan, is amended by replacing the date "January 1, 1997" with "January
          1, 1998."

     2.   Definition of Compensation. The fifth paragraph of Section 1.6 is
          amended by adding the underlined text, to read as follows:

               "For purposes of the Section 415(c) limits on contributions and
               benefits, the following items shall be included in the definition
               of Compensation: (1) elective deferrals to 401(k) plans; (2)
               elective contributions to Section 457 nonqualified deferred
               compensation plans; (3) salary reduction contributions made to a
               cafeteria plan under Section 125; and, for Plan Years beginning
               on or after January 1, 2001, (4) elective amounts that are not
               includible in gross income by reason of Code Section 132(f)(4)."

     3.   Definition of Highly Compensated Employee. Section 1.11(b)(ii) of the
          Plan is amended to read as follows:

            "(ii) if the Employer elects use of the top-paid group through a
          Plan amendment, was in the top-paid group of employees for such
          preceding year."

     4.   Qualified Military Service. Section 2.2.5 is amended by adding the
          underlined text, to read as follows:

               "Notwithstanding any provision of this Plan to the contrary,
               contributions, benefits and service credit with respect to
               qualified military service will be provided in accordance with
               Section 414(u) of the Code effective as of December 12, 1994."

                                                                 Amendment No. 1
                                                                          Page 1

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     5.   Excess Contributions. Section 3.4.4 of the Plan is amended, beginning
          with the eighth sentence of the first paragraph of Section 3.4.4 and
          continuing to the end of such paragraph, to read as follows:

               "A Highly Compensated Employee's "excess contributions" are, with
               respect to any Plan Year, the excess of (1) the aggregate amount
               of employer contributions actually taken into account in
               computing the ADP of the Highly Compensated Employee for such
               Plan Year, over (2) the maximum amount of such contributions
               permitted by the ADP test (determined by hypothetically reducing
               contributions made on behalf of Highly Compensated Employees in
               order of the ADPs, beginning with the highest of such
               percentages), using a leveling method under which the actual
               dollar amount deferred is reduced to the extent required to (1)
               enable the Plan to satisfy the requirements of this Section 3.4.4
               or (2) cause such Highly Compensated Employee's actual dollar
               amount deferred to equal the actual dollar amount deferred of the
               Highly Compensated Employee with the next highest actual dollar
               amount deferred, repeating this process until the requirements of
               this Section 3.4.4 are met. The amount of excess contributions to
               be distributed with respect to a Participant for a Plan Year
               shall be reduced by any excess deferrals previously distributed
               to the Participant for the calendar year ending with or within
               such Plan Year."

     6.   Excess Aggregate Contributions. Section 3.4.6 of the Plan is amended,
          beginning with the fourth sentence of the second paragraph of Section
          3.4.6 and continuing to the end of such paragraph, to read as follows:

               "A Highly Compensated Employee's "excess aggregate contributions"
               are, with respect to any Plan Year, the excess of (1) the
               aggregate amount of employer matching contributions actually
               taken into account in computing the ACP of the Highly Compensated
               Employee for such Plan Year, over (2) the maximum amount of such
               contributions permitted by the ACP test (determined by
               hypothetically reducing matching contributions made on behalf of
               Highly Compensated Employees in order of the ACPs, beginning with
               the highest of such percentages), using a leveling method under
               which the actual dollar amount contributed is reduced to the
               extent required to (1) enable the Plan to satisfy the
               requirements of this Section 3.4.6 or (2) cause such Highly
               Compensated Employee's actual dollar contribution amount to equal
               the actual dollar contribution amount of the Highly Compensated
               Employee with the next highest actual dollar contribution amount,
               repeating this process until the requirements of this Section
               3.4.6 are met. A matching contribution shall be forfeited and not
               taken into account for purposes of this Section 3.4.6 if the
               contribution to

                                                                 Amendment No. 1
                                                                          Page 2

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               which it relates is treated as an excess deferral under Section
               3.4.1 or an excess contribution under 3.4.4."

     7.   "Maximum Permissible Amount". The definition of "Maximum Permissible
          Amount" in Section 4.4.7(c) is amended to read as follows:

"(c) "Maximum Permissible Amount" means the lesser of (1) $30,000, or (2) 25
     percent of the Participant's Compensation for the Plan Year. For purposes
     of the preceding sentence, the Compensation limitation shall not apply to
     any contribution for medical benefits (within the meaning of Section
     419(f)(2) of the Code) after separation from service which is otherwise
     treated as an annual addition."

     8.   Required Beginning Date. Section 5.5.7(f) of the Plan is amended by
          adding a new subsection (iv) thereto, to read as follows:

     "(iv) A Participant (other than a 5-percent owner) who attains age 70 1/2
     after 1995 shall have the option of commencing distributions by April 1
     following age 70 1/2 or deferring distributions until April 1 following the
     calendar year in which the Participant retires."

          Except as otherwise stated herein, this Amendment is effective as of
January 1, 2001. Except as amended, the Plan shall continue in full force and
effect.

     KEY TECHNOLOGY, INC.

     By /s/ Gordon Wicher
        ------------------------------------

                                                                 Amendment NO. 1
                                                                          Page 3<PAGE>

                                                                   Exhibit 10.16

                              KEY TECHNOLOGY, INC.
                         PROFIT SHARING AND 401(k) PLAN
                                2001 RESTATEMENT

                                 AMENDMENT NO. 2

     Pursuant to Section 10.2 of the Key Technology, Inc. Profit Sharing and
401(k) Plan, 2001 Restatement (the "Plan"), the sponsoring employer hereby
adopts the following amendments to reflect certain provisions of the Economic
Growth and Tax Relief Reconciliation Act of 2001 ("EGTRRA"). This amendment is
intended as good faith compliance with the requirements of EGTRRA and is to be
construed in accordance with EGTRRA and guidance issued thereunder. This
amendment also adopts the IRS model amendment adopting the 2001 proposed
regulations for determining required minimum distributions. This amendment shall
supercede the provisions of the Plan to the extent those provisions are
inconsistent with the provisions of this amendment. Except as otherwise
provided, this amendment shall be effective as of January 1, 2002:

          1. Compensation. The definition of Compensation is amended by adding
     the following paragraph to Section 1.6:

          "For Plan Years beginning after December 31, 2001, the maximum annual
          Compensation counted for any Participant shall not exceed $200,000, as
          adjusted for cost-of-living increases in accordance with Section
          401(a)(17)(B) of the Code. Annual Compensation means Compensation
          during the Plan Year or such other consecutive 12-month period over
          which Compensation is otherwise determined under the Plan (the
          determination period). The cost-of-living adjustment in effect for a
          calendar year applies to the annual Compensation for the determination
          period that begins with or within such calendar year."

          2. Contributions. Section 3.1 of the Plan is re-designated as Section
     3.1.1 and the fourth sentence of that Section is amended to read as
     follows:

          "Each Participant's Compensation reduction amount may be a dollar
          amount or a percentage of his or her Compensation from 1 to 50
          percent, in increments of whole percentages."

          3. Catch-up Contributions. The Plan is amended to add a new Section
     3.1.2 to read as follows:

          "3.1.2 Eligible Employees may arrange to make catch-up contributions
          to the Plan as follows:

          All Employees who are eligible to make elective deferrals under this
          Plan and who have attained age 50 before the close of the Plan Year
          shall be eligible to make catch-up contributions in accordance with,
          and subject to the limitations of,

                                                                 Amendment No. 2
                                                                          Page 1

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          Section 414(v) of the Code. Such catch-up contributions shall not be
          taken into account for purposes of the provisions of the Plan
          implementing the required limitations of Section 402(g) and 415 of the
          Code. The Plan shall not be treated as failing to satisfy the
          provisions of the Plan implementing the requirements of Section
          401(k)(3), 401(k)(11), 401(k) 12), 410(b) or 416 of the Code, as
          applicable, by reason of the making of such catch-up contributions."

          4. Limits on Contributions. Section 3.4.1 of the Plan is amended to
     read as follows:

          "No Participant shall be permitted to have elective deferrals made
          under this Plan, or any other qualified plan maintained by the
          Employer during any taxable year, in excess of the dollar limitation
          contained in Section 402(g) of the Code in effect for such taxable
          year, except to the extent permitted under Section 3.1.2 of the Plan
          and Section 414(v) of the Code, if applicable. Any contribution in
          excess of the maximum amount shall be considered "excess deferrals." A
          Participant is deemed to have notified the Plan of excess deferrals to
          the extent the individual has excess deferrals for the Plan Year
          calculated by taking into account only elective deferrals under the
          Plan and any other plan of the Employer."

          5. Repeal of Multiple Use Test. Section 3.4.5 of the Plan is amended
     by adding the following sentence:

          "The multiple use test described in Treasury Regulation Section
          1.401(m)-2 shall not apply for Plan Years beginning after December 31,
          2001."

          6. Maximum Annual Additions to Accounts. Section 4.4 of the Plan is
     amended by adding a new Subsection 4.4.10, to read as follows:

          "4.4.10 Effective for limitation years beginning after December 31,
          2001, except to the extent permitted under Section 3.1.2 of the Plan
          and Section 414(v) of the Code, if applicable, the annual addition
          that may be contributed or allocated to a Participant's account under
          the Plan for any limitation year shall not exceed the lesser of:

               (a) $40,000, as adjusted for increases in the cost-of-living
          under Section 415(d) of the Code, or

               (b) 100 percent of the Participant's Compensation, within the
          meaning of Section 415(c)(3) of the Code, for the limitation year. The
          Compensation limit referred to in this subsection (b) shall not apply
          to any contribution for medical benefits after separation from service
          (within the meaning of Section 401(h) or Section 419A(f)(2) of the
          Code which is otherwise treated as an annual addition."

                                                                 Amendment No. 2
                                                                          Page 2

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          7. Vesting Schedule. Section 5.3.1 of the Plan is amended by adding
     the following paragraph after the second full paragraph and vesting
     schedule:

          "This paragraph shall apply to Participants who complete an Hour of
          Service under the Plan in a Plan Year beginning after December 31,
          2001. In the event that such a Participant's employment terminates for
          any reason other than retirement, death or disability the percentage
          of the Participant's Employer Account which shall be vested and
          nonforfeitable with respect to contributions made for years beginning
          on or after January 1, 2002 shall be determined according to the
          following schedule:

                 Years of Service                   Vested Percentage

                    Less than 2                              0%
                         2                                  25%
                         3                                  50%
                         4                                  75%
                         5                                 100%

          8. Distribution Upon Severance From Employment. Section 5.3 of the
     Plan is amended by adding a new Subsection 5.3.5 to read as follows:

          "This Section 5.3.5 shall apply for distributions occurring after
          December 31, 2001. A Participant's vested Accounts shall be
          distributed on account of the Participant's severance from employment.
          Such a distribution shall be subject to the other provisions of the
          Plan regarding distributions but shall not be subject to any
          requirement that a "separation from service" has occurred."

          9. Required Minimum Distributions. Section 5.5.5(c) of the Plan is
     amended by adding the following subparagraph (v):

          "(v) Distributions for calendar years after 2001. With respect to
          distributions under the Plan made for calendar years beginning on or
          after January 1, 2002, the Plan will apply the minimum distribution
          requirements of Section 401(a)(9) that were proposed on January 17,
          2001, notwithstanding any provision of the Plan to the contrary. The
          preceding sentence shall continue in effect until the end of the last
          calendar year beginning before the effective date of final regulations
          under Section 401(a)(9) or such other date as may be specified in
          guidance published by the Internal Revenue Service."

          10. Direct Rollovers. Section 5.10 of the Plan is amended by adding a
     new Section 5.10.6, to read as follows:

                                                                 Amendment No. 2
                                                                          Page 3

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          "This Section 5.10.6 shall apply to distributions made after December
          31, 2001.

          (a) Modification of definition of eligible retirement plan. For
     purposes of the direct rollover provisions in Section 5.10.3 of the Plan,
     an eligible retirement plan shall also mean an annuity contract described
     in Section 403(b) of the Code and an eligible plan under Section 457(b) of
     the Code which is maintained by a state, political subdivision of a state,
     or any agency or instrumentality of a state or political subdivision of a
     state and which agrees to separately account for amounts transferred into
     such plan from this Plan. The definition of eligible retirement plan shall
     also apply in the case of a distribution to a surviving spouse, or to a
     spouse or former spouse who is the alternate payee under a qualified
     domestic relation order, as defined in Section 414(p) of the Code.

          (b) Modification of definition of eligible rollover distribution to
     exclude hardship distributions. For purposes of the eligible rollover
     distribution provisions in Section 5.10.2 of the Plan, any amount that is
     distributed on account of hardship shall not be an eligible rollover
     distribution and the distributee may not elect to have any portion of such
     a distribution paid directly to an eligible retirement plan."

          11. Top-Heavy Provisions. The Plan is amended by adding a new Section
     11.5, to read as follows:

          "11.5 This Section 11.5 shall apply for purposes of determining
          whether the Plan is a top-heavy plan under Section 416(g) of the Code
          for Plan Years beginning after December 31, 2001, and whether the Plan
          satisfies the minimum benefit requirements of Section 416(c) of the
          Code for such years. This Section amends Sections 11.1 through 11.4 to
          the extent inconsistent therewith.

          11.5.1 Key Employee means any employee or former employee (including
          any deceased employee) who, at any time during the Plan Year that
          includes the determination date, was an officer of the Employer having
          annual compensation greater than $130,000 (as adjusted under Section
          416(i)(1) of the Code for Plan Years beginning after December 31,
          2002), a 5-percent owner of the Employer, or a 1-percent owner of the
          Employer having annual compensation of more than $150,000. For this
          purpose, annual compensation means compensation within the meaning of
          Section 415(c)(3) of the Code. The determination of who is a key
          employee will be made in accordance with Section 416(i)(1) of the Code
          and the applicable regulations and other guidance of general
          applicability thereunder.

          11.5.2 Determination of present values and amounts. This Section
          11.5-2 shall apply for purposes of determining the present values of
          accrued benefits and the amounts of account balances of Employees as
          of the determination date.

                                                                 Amendment No. 2
                                                                          Page 4

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          (a) Distributions during the year ending on the determination date.
     The present values of accrued benefits and the amounts of account balances
     of an Employee as of the determination date shall be increased by the
     distributions made with respect to the Employee under the Plan and any plan
     aggregated with the Plan under Section 416(g)(2) of the Code during the
     1-year period ending on the determination date. The preceding sentence
     shall also apply to distributions under a terminated plan which, had it not
     been terminated, would have been aggregated with the Plan under Section
     416(g)(2)(A)(i) of the Code. In the case of a distribution made for a
     reason other than separation from service, death, or disability, this
     provision shall be applied by substituting "5-year period" for "1-year
     period."

          (b) Employees not performing services during the year ending on the
     determination date. The accrued benefits and accounts of any individual who
     has not performed services for the Employer during the 1-year period ending
     on the determination date shall not be taken into account.

     11.5.3 Minimum Benefits.

          (a) Matching contributions. Employer matching contributions shall be
     taken into account for purposes of satisfying the minimum contribution
     requirements of Section 416(c)(2) of the Code and the Plan. The preceding
     sentence shall apply with respect to matching contributions under the Plan
     or, if the Plan provides that the minimum contribution requirement shall be
     met in another plan, such other plan. Employer matching contributions that
     are used to satisfy the minimum contribution requirements shall be treated
     as matching contributions for purposes of the actual contribution
     percentage test and other requirements of Section 401(m) of the Code.

          (b) Contributions under other plans. The Employer may provide that the
     minimum benefit requirement shall be met in another plan (including another
     plan that consists solely of a cash or deferred arrangement which meets the
     requirements of Section 401(k)(12) of the Code and matching contributions
     with respect to which the requirements of Section 401(m)(11) of the Code
     are met."

     Except as amended, the Plan shall remain in full force and effect.

                                         KEY TECHNOLOGY, INC.

                                         By: /s/  Gordon Wicher
                                            ------------------------------
                                         Date Signed: 1/16/02
                                                      --------------------

                                                                 Amendment No. 2
                                                                          Page 5

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