KLA TENCOR CORP
S-8, EX-4.1, 2000-11-13
OPTICAL INSTRUMENTS & LENSES
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                                                                     EXHIBIT 4.1

                             KLA-TENCOR 401(k) PLAN

                                 AMENDMENT NO. 5



        The KLA-Tencor 401(k) Plan (the "Plan"), as originally effective as of
January 1, 1982, as most recently restated in its entirety effective as of July
1, 1997, and as subsequently amended on four separate occasions, is hereby
further amended effective as of October 2, 2000, except as otherwise specified,
as follows:

        1. Paragraph (a) of Section 2.4, entitled Compensation, is hereby
amended in its entirety, to read as follows:

            "(a) SALARY DEFERRAL CONTRIBUTIONS. Base salary or regular time
        hourly wages, overtime, bonus, stand-by pay, base profit sharing,
        commissions, differential pay, payments for paid time off and paid time
        off cashouts, payments in lieu of notice and termination pay.
        Compensation for purposes of Salary Deferral Contributions shall not
        include contributions to any nonqualified deferred compensation plan
        sponsored by the Employer or any cost of living allowance (as defined in
        the policies and procedures of the Company)."

        2. Section 2.9, entitled Distributions, is hereby renamed and amended in
its entirety, to read as follows:


            "2.9   FORM OF DISTRIBUTION AND BENEFIT.

            (a) Form of Distribution. Distributions shall be in the form of
        cash; provided however, that to the extent a Participant's Account is
        invested in Company Stock at the time of distribution, the Participant
        may elect a distribution in the form of whole shares of Company Stock,
        with any fractional shares to be paid in the form of cash.

            (b) Form of Benefit.

                (i)  For Distributions Elected On or Before December 31, 2000.

                    (A) Normal Form of Benefit. Benefits shall be paid to the
          Participant or the Participant's Beneficiary in the form of a single
          lump sum in the absence of an election by the Participant and subject
          to Section 7.5.



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                    (B) Optional Forms of Benefit. The Participant may elect
          substantially-equal annual installments over a specified period of
          years which shall not exceed the life expectancies of the Participant
          and his or her Beneficiary."

               (ii) For Distributions Elected On or After January 1, 2001.
Benefits shall be paid to the Participant or the Participant's Beneficiary in
the form of a single lump sum."


        3. The following is hereby added to Article III, entitled DEFINITIONS
(and subsequent Sections shall be renumbered accordingly) to read as follows:

            "3.7 COMPANY STOCK. `Company Stock' means common or preferred stock
        of KLA-Tencor Corporation, or any successor by merger, consolidation or
        otherwise, that meets the requirements of `qualifying employer security'
        under ERISA Section 407(d)(5) and `employer securities' under Code
        Section 409(l)."

        4. Paragraph (a) of Section 5.1, entitled Salary Deferral
Contributions, is hereby amended in its entirety, to read as follows:

            "(a) Subject to the limitations of Sections 6.4 and 6.5, an eligible
        Employee may elect, in accordance with the procedures established from
        time to time by the Administrator, to have a portion of his or her
        Compensation contributed the Salary Deferral Contributions Account
        maintained on his or her behalf. The eligible Employee's election shall
        specify the amount of his or her Compensation to be contributed, which
        amount shall not be less than one percent (1%) and not more than fifteen
        percent (15%) of the Participant's Compensation from each regular pay
        check and from periodic payments other than base profit sharing that
        constitute Compensation. In addition, the eligible Employee may elect to
        have up to one hundred percent (100%) of his or her base profit sharing
        payments contributed to the Salary Deferral Contributions Account
        maintained on his or her behalf. However, in no event shall the dollar
        amount contributed on behalf of such Participant to his or her Salary
        Deferral Contributions Account for any calendar year exceed the limit
        prescribed under Code Section 402(g)(5) (Ten Thousand Five Hundred
        Dollars ($10,500) in 2000). A Participant may elect to increase,
        decrease or discontinue Salary Deferral Contributions in such manner and
        at such time as the Administrator shall specify from time to time."

        5. Effective as of July 1, 2000, Section 6.4, entitled Section 415
Limitations, is hereby amended in its entirety (and the cross-referenced
sections in Section 3.42 and throughout the Plan are amended accordingly), to
read as follows:

        "6.4   SECTION 415 LIMITATIONS.

               (a)    Definitions.

                    (i) Annual Additions. `Annual Additions' means, with respect
            to each Participant, the sum of the following amounts for the
            Limitation Year under this Plan, any Other Plan(s), or as otherwise
            specified:



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              (A) Employer Contributions;

              (B) Employee contributions;

              (C) forfeitures;

              (D) amounts allocated, after March 31, 1984, to the Participant's
individual medical account (as defined in Code Section 415(l)(2)), which is part
of a pension or annuity plan maintained by the Employer;

              (E) amounts derived from contributions paid or accrued after
December 31, 1985, in taxable years ending after such date, which are
attributable to post-retirement medical benefits, allocated to the separate
account of a Key Employee (as defined in Code Section 19A(d)(3)) and under a
welfare benefit fund (as defined in Code Section 419(e)) maintained by the
Employer; and

              (F) any Excess Amount applied under paragraph (e)(iii) in the
Limitation Year to reduce Employer Contributions.

         Contributions do not fail to be Annual Additions merely because they
are Excess Elective Deferrals, Excess 401(k) Contributions, or Excess Matching
Contributions or merely because Excess 401(k) Contributions or Excess Matching
Contributions are corrected through distribution or recharacterization. Excess
Elective Deferrals that are distributed in accordance with Section 6.6 are not
Annual Additions.

         (ii) Defined Contribution Dollar Limitation. `Defined Contribution
Dollar Limitation' means Thirty Thousand Dollars ($30,000), as adjusted by the
Adjustment Factor.

         (iii) Excess Amount. `Excess Amount' means the amount of Annual
Additions which, if credited to a Participant's Account under this Plan and any
Other Plan(s) for a Limitation Year, would exceed the Maximum Permissible
Amount.

         (iv) Limitation Year. `Limitation Year' means the twelve
(12)-consecutive month period ending on the last day of the Plan Year. If the
Limitation Year is amended to a different twelve (12)-consecutive month period,
then the new Limitation Year must begin on a date within the Limitation Year in
which the amendment is made effective.

         (v) Maximum Permissible Amount. `Maximum Permissible Amount' means the
maximum Annual Addition contributed or allocated to a Participant's Account
under this Plan and any Other Plan(s) for any Limitation Year which shall not
exceed the lesser of:

              (A) the Defined Contribution Dollar Limitation, or

              (B) twenty-five percent (25%) of the Participant's Section 415
Compensation for the Limitation Year. The Section 415 Compensation limitation
shall



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not apply to any contribution for medical benefits (within the meaning of
Code Section 401(h) or 419A(f)(2)) which is otherwise treated as an Annual
Addition under Code Section 415(1)(1) or 419A(d)(2). If a short Limitation Year
is created because of an amendment changing the Limitation Year to a different
twelve (12)-consecutive month period, then the Maximum Permissible Amount will
not exceed the Defined Contribution Dollar Limitation multiplied by the
following fraction:

                 Number of months in the short Limitation Year
                ------------------------------------------------
                                       12

         (vi) Other Plan. `Other Plan' means any other defined contribution plan
to which contributions are or have been made on behalf of Participants in this
Plan by one or more members of the controlled group of corporations (as
determined in accordance with the ownership rules of Code Section 1563, without
regard however, to Code Section 1563(a)(4) or 1563(e)(3)(C)) and any other
employer entity which constitutes an affiliated service group or is required to
be aggregated with the Employer pursuant to Code Section 414(c), 414(m) or
414(o).

    (b) Maximum Annual Additions. The amount of Annual Additions which may be
credited to the Participant's Account under this Plan and any Other Plan(s) for
any Limitation Year shall not exceed the lesser of the Maximum Permissible
Amount or any other limitation contained in this Plan or any Other Plan(s). If
the Contributions that would otherwise be contributed or allocated on behalf of
the Participant would cause the Annual Additions for the Limitation Year to
exceed the Maximum Permissible Amount, then the amount contributed or allocated
shall be reduced so that the Annual Additions for the Limitation Year equal the
Maximum Permissible Amount.

    (c) Timing. Prior to determining the Participant's actual Section 415
Compensation for the Limitation Year, the Employer may determine the Maximum
Permissible Amount for a Participant on the basis of a reasonable estimation of
the Participant's Section 415 Compensation for the Limitation Year.

    (d) Actual Section 415 Compensation. As soon as is administratively feasible
after the end of the Limitation Year (or within such other period as applicable
for a Participant who terminates employment and requests a distribution from the
Plan), the Maximum Permissible Amount for the Limitation Year shall be
determined on the basis of the Participant's actual Section 415 Compensation for
the Limitation Year.

    (e) Disposition of Excess Amount. If an Excess Amount exists for one or more
Participants for a Limitation Year, as a result of (i) a reasonable error in
determining the amount of elective deferrals (within the meaning of Code Section
402(g)(3)) that may be made with respect to any Participant under the limits of
this Section, (ii) an allocation of forfeitures, (iii) a reasonable error in
estimating a Participant's annual Section 415 Compensation, or (iv) other facts
and circumstances with respect to which the provisions of Income Tax Regulation
Section 1.415-6(b)(6) are available, then, to the extent necessary, such Excess
Amount shall be disposed of in the manner and in the order specified below.
Except to the extent inconsistent with the



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provisions of any Other Plan(s): (i) whenever this Plan provides for the
disposition of an Excess Amount, the disposition of an Excess Amount consisting
of a particular type of contribution shall be of that type of contribution in
this Plan and any Other Plan(s), and (ii) to the extent disposition of an Excess
Amount is made, the Administrator shall have discretion as to whether
disposition of such Excess Amount shall be made from this Plan or any Other
Plan(s), or partly from each.

         (i) First, all or the necessary portion of after-tax employee
contributions (including, if applicable, gains thereon) made by the Participant
for the Limitation Year shall be refunded to the Participant;

         (ii) Then, all or the necessary portion of the Participant's share of
Employer Profit Sharing Contributions (if any) for the Plan Year coincident with
the Limitation Year (including, if applicable, gains thereon) shall be reduced.
Accordingly, the Employer shall make appropriate reduction in the Employer
Profit Sharing Contributions for the calendar quarter(s) for which the
Participant's Employer Profit Sharing Contribution is reduced. If such amount
has been allocated to the Participant's Employer Profit Sharing Contributions
Account, the amount shall be withdrawn from such Account, held in a suspense
account, and disposed of pursuant to paragraph (f) below;

         (iii) Then, all or the necessary portion of Salary Deferral
Contributions (including, if applicable, the gains thereon) made on the
Participant's behalf which were not the subject of any Employer Matching
Contributions shall be distributed to the Participant as a current cash payment,
subject to applicable Federal and state withholding taxes;

         (iv) Then, all or the necessary portion of Salary Deferral
Contributions (including, if applicable, the gains thereon) made on the
Participant's behalf for such Limitation Year which were entitled to Employer
Matching Contributions shall be distributed to the Participant as a current cash
payment, subject to applicable Federal and state withholding taxes, and no
Employer Matching Contributions shall be made with respect to the distributed
Salary Deferral Contributions. Accordingly, the Participant's Employer Matching
Contributions for such Limitation Year are to be reduced as follows:

              (A) to the extent the Employer Matching Contributions have not
already been made on the Participant's behalf, the reduction shall be effected
by making an appropriate reduction in the aggregate amount of Employer Matching
Contributions to take into account the distributed Salary Deferral Contributions
no longer eligible for Employer Matching Contributions; or

              (B) to the extent the Employer Matching Contributions have already
been allocated to the Participant's Employer Matching Contributions Account,
then such Employer Matching Contributions (to the extent attributable to the
distributed Salary Deferral Contributions) shall, together with the Earnings
thereon (if applicable), be withdrawn from the Participant's Employer Matching
Contributions Account and used for any Employer Matching Contributions still to
be made on behalf of other Participants



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    eligible for Employer Matching Contributions. Any Employer Matching
    Contributions withdrawn from the Participant's Employer Matching
    Contributions Account and not utilized shall be held in a suspense account
    and disposed of pursuant to paragraph (f) below; and

            (v) Finally, all or the necessary portion of the Participant's
    allocable share of contributions and forfeitures under any Other Plan(s)
    (other than as set forth in paragraphs (i) through (iv) above) shall be
    reduced in accordance with the applicable provisions of such Other Plan(s).

        (f) Suspense Account. Amounts held in the suspense account pursuant to
    subparagraphs (ii) and (iv) above shall be held unallocated and shall be
    used to reduce future Employer Contributions for each succeeding Plan Year
    until the suspense account is reduced to zero (0). No Earnings attributable
    to the assets of the Trust shall be allocated to the suspense account, nor
    shall any contributions to this Plan or, if applicable, Other Plan(s), be
    made by the Employer while there is an outstanding balance in such suspense
    account. Upon the termination of the Plan, any outstanding balance in the
    suspense account shall revert to the Employer, or if applicable, the
    Participating Employer who made such Contributions to the Plan."

    6. Effective July 1, 2000, paragraph (b) of Section 6.6, entitled
Distribution of Excess Deferral Contributions, is hereby amended in its entirety
and a new paragraph (c) is added, to read as follows:

        "(b) Reimbursement of Excess Salary Deferrals and Forfeiture of Related
    Matching Contributions. Excess Salary Deferrals shall be distributed to the
    Participant no later than April 15th of the calendar year following the year
    in which the Excess Salary Deferrals were made. Employer Matching
    Contributions made on account of such Excess Salary Deferrals shall be
    forfeited as soon as administratively feasible thereafter and applied to
    reduce future Employer Contributions.

        (c) Adjustment for Earnings. Excess Salary Deferrals and Employer
    Matching Contributions attributable thereto shall be adjusted for any
    earnings. Earnings shall be calculated through the end of the taxable year
    of the Participant for which the Excess Salary Deferrals and Employer
    Matching Contributions attributable thereto were made. Earnings shall also
    be calculated for the Gap Period. For this purpose, the `Gap Period' means
    the period beginning on the first day of the subsequent taxable year of the
    Participant and ending on either the day before the date of distribution or
    on a date selected in accordance with the safe harbor method set forth in
    Income Tax Regulation Section 1.402(g)-1(e)(5)(iv). The earnings allocable
    to Excess Salary Deferrals and Employer Matching Contributions attributable
    thereto shall be calculated by the Administrator using any reasonable method
    for computing the earnings allocable to Excess Salary Deferrals and Employer
    Matching Contributions attributable thereto; provided, however, that the
    method shall not violate Code Section 401(a)(4), and that the method shall
    be used consistently for all Participants, for all corrective distributions
    under the Plan for the Plan Year, and for allocating Earnings to
    Participants' Accounts."



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        7. Effective as of the dates set forth below, paragraph (a) of Section
7.5, entitled Commencement of Distribution, is hereby amended in its entirety
and replaced with the following new paragraphs (a), (b), (c) and (d) (former
paragraphs (b), (c), (d) and (e) shall be redesignated as 7.5 (e), (f), (g) and
(h), respectively), to read as follows:

               "(a) Subject to Sections 7.5 through 7.9 and the Appendices,
        following a Participant's Severance Date, the Participant's Accounts
        shall be distributed at a date designated by the Administrator, which
        designation (except as provided below) shall be as soon as
        administratively practicable following the next Valuation Date after the
        participant's Severance Date.

               (b) Effective for any distribution made during the period
        beginning with the start of the first Plan Year after August 5, 1997,
        and ending on March 22, 1999:

                      (i) if the Participant's vested Account balance does not
        exceed Five Thousand Dollars ($5,000) at the time of distribution (or at
        the time of any prior distribution), then the Participant shall receive
        a lump sum distribution of the entire vested portion of such Account
        balance and the nonvested portion shall be treated as a forfeiture; or

                      (ii) if the Participant's vested Account balance exceeds
        Five Thousand Dollars ($5,000) at the time of distribution (or at the
        time of any prior distribution), then the Participant must consent in
        writing prior to the distribution.

          (c)   Effective for distributions made on or after March 22, 1999:

                (i) if the Participant's vested Account balance does not exceed
        Five Thousand Dollars ($5,000) at the time of the distribution, then the
        Participant shall receive a lump sum distribution of the entire vested
        portion of such Account balance and the nonvested portion shall be
        treated as a forfeiture; or

                (ii) if the Participant's vested Account balance exceeds Five
        Dollars ($5,000) at the time of distribution, then the Participant must
        consent to the distribution in writing. (iii) Notwithstanding the
        foregoing, if a Participant has begun to receive a distribution pursuant
        to an optional form of benefit under which at least one (1) scheduled
        periodic distribution is still payable, and if the value of the
        Participant's vested Account balance exceeded Five Thousand Dollars
        ($5,000) at the time of the first distribution under that optional form
        of benefit, then the remaining value of the Participant's vested Account
        balance may not be distributed without the written consent of the
        Participant.

          (d) If consent is required for a distribution, then the Participant
        must consent in writing to the distribution before it may be made and
        within the ninety (90)-day period ending on the first day on which all
        of the events have occurred that entitle the Participant to such benefit
        (the 'Annuity Starting Date'). If the Participant consents to the
        distribution, then such distribution shall include all of the
        Participant's vested Account



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        balance. If the Participant does not consent in writing to the
        distribution, then the Participant's vested Account balance shall be
        held in the Trust until the maximum period permitted under paragraph (e)
        below. If consent to a distribution is required hereunder, then at least
        thirty (30) days and not more than ninety (90) days prior to the Annuity
        Starting Date, the Administrator shall provide the Participant with a
        notice of the right to elect immediate distribution or the right to
        defer distribution until the Participant's Normal Retirement."

        8. Effective as of January 1, 2000, the following sentence is added to
paragraph (b)(iv) of Section 7.6, entitled Direct Rollovers and Withholding to
read as follows:

               "An Eligible Rollover Distribution does not include Salary
        Deferral Contributions distributed as a result of a hardship
        distribution, as set forth in Section 7.11."

        9. Paragraph (a) of Section 7.11, entitled Hardship Distribution, shall
be amended in its entirety, to read as follows:

               "(a) The Trustee shall, upon a qualifying hardship of a
        Participant (as specified in this Section), and upon the direction of
        the Administrator, make a distribution from the Participant's Salary
        Deferral Contributions Account (not including earnings), if any, and if
        such Account is not maintained, or if the account balance of such
        Account is not sufficient for the distribution, the Trustee shall then
        make such distribution from the Participant's Rollover Contributions
        Account. A Participant shall be entitled to a hardship distribution only
        if the distribution is both (i) made on account of an immediate and
        heavy financial need of the Participant (as defined in paragraph (b)),
        and (ii) is necessary to satisfy such financial need (as defined in
        paragraph (c)). Notwithstanding the foregoing, amounts invested in the
        KLA-Tencor Common Stock Fund shall not be eligible for withdrawal
        pursuant to this Section."

        10. Section 10.3, entitled Investment Decision, shall be amended, in its
entirety, to read as follows:

               "10.3 INVESTMENT DECISION. The decision as to the investment of
        an Account shall be made by the Participant, and the Trustee shall have
        no responsibility for determining how an Account is to be invested or
        whether the investment directions communicated to the Trustee comply
        with the terms of the Plan. Except for a Participant subject to Section
        16 of the Securities Exchange Act of 1934, as amended, each Participant
        may direct the investment of up to one hundred percent (100%) of his or
        her Account in Company Stock. Notwithstanding the foregoing, to the
        extent Participant Accounts are held in the form of Company Stock, the
        following rules shall apply:

               (a) if the Administrator determines that any election out of
        Company Stock might violate applicable securities laws or create a
        liability for Participants under such laws or is for any other reason
        known to the Administrator contrary to the best interests



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        of Participants, the Administrator may, in its sole and absolute
        discretion, suspend or limit the right of any Participant to make such
        an investment election;

                (b) cash dividends, if made, shall be allocated to the purchase
        of additional shares of Company Stock; and

                (c) rights to sell and vote Company Stock shall be administered
        in accordance with the Trust Agreement and the Company's insider trading
        policy."

        11. Effective as of January 1, 2001 and pursuant to Regulation Section
1.411(d)-4 Q&A-2(e), Paragraph A.6-1, entitled Distribution Forms, and Paragraph
A.7, entitled Spousal Consent, of Appendix A, entitled Merger of Tencor
Instruments 401(k) Retirement Plan, is hereby deleted in its entirety.

        12. Effective as of January 1, 2001 and pursuant to Regulation Section
1.411(d)-4 Q&A-2(e), Paragraph B.5-1, Distribution Forms, of Appendix B, Merger
of Amray\Lico, Inc. Employee Savings Plan, is hereby deleted in its entirety.


        This amendment is executed this ____ day of October, 2000.

                                               KLA-TENCOR CORPORATION



                                               By:
                                                  ------------------------------

                                               Title:
                                                     ---------------------------



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