2010 Executive Severence Plan



 Exhibit 10.46 
 KLA-TENCOR CORPORATION 
 2010 EXECUTIVE SEVERANCE PLAN 

AS APPROVED NOVEMBER 3, 2010 
 1. Introduction 
 The KLA-Tencor Corporation 2010 Executive Severance Plan
(the “Plan”) is intended to exist in parallel with the Company’s existing Executive Severance Plan (the “Existing Plan”). The Existing Plan provides for severance benefits for certain executive officers of the Company,
including tax gross-up provisions related to excise taxes imposed by Code Section 4999 as the result of receiving parachute payments as determined under Code Section 280G that may be triggered in connection with the payment of certain
benefits to the participating officers upon or in connection with the occurrence of a Change of Control (as defined therein). This Plan does not contain an excise tax gross-up provision and reflects certain other differences (as compared to the
Existing Plan) in the benefits payable to Participants under the circumstances described in the Plan. 
 This Plan is designed
to (i) assure the Company that it will have the continued dedication and availability of, and objective advice and counsel from, the Participants and (ii) provide Participants with the compensation and benefits described in the Plan in the
event of their termination of employment with the Company under the circumstances described in the Plan. This document constitutes the written instrument under which the Plan is maintained and supersedes any prior plan or practice of the Company
that provides severance benefits to Participants. However, this Plan does not supersede the Existing Plan (which shall remain in full force and effect for existing participants thereunder (except as otherwise specifically determined on a
case-by-case basis by the Committee or the Board of Directors, as applicable) until terminated in accordance with its terms), as no Participant hereunder is eligible to participate thereunder, and no participant under the Existing Plan is eligible
to simultaneously participate hereunder. 
 This Plan is intended to be in documentary compliance with the applicable
requirements of Section 409A of the Internal Revenue Code and the Treasury Regulations issued thereunder, and any ambiguities herein will be interpreted to so comply. 
 Participants shall be those Employees selected at the sole discretion of the Committee. 
 2. Definitions 
 For purposes of this Plan, the following terms shall have
the meanings set forth below: 
 (a) “Acceleration Ratio” shall mean the ratio of (i) the number of months
(with any fractional month rounded up to the next whole month) that elapse between the grant date of an outstanding equity award and the date of the Participant’s Separation from Service hereunder to (ii) the number of months (with any
fractional month rounded up to the next whole month) in the total vesting period in effect for such award. 







 (b) “Base Salary” shall mean the Participant’s annual rate of base
salary in effect as of the date of his or her cessation of Employee status, but prior to any reduction to such Base Salary that would qualify as a Good Reason termination event. 

(c) “Board” means the Board of Directors of the Company. 

(d) “Cause” shall mean (A) outside the Change of Control Period, the occurrence of any of the following events:
(i) the Participant’s conviction of, or plea of nolo contendre to, a felony; (ii) the Participant’s gross misconduct; (iii) any material act of personal dishonesty taken by the Participant in connection with his or her
responsibilities as an employee of the Company, or (iv) the Participant’s willful and continued failure to perform the duties and responsibilities of his or her position after there has been delivered to the Participant a written demand
for performance from the Board which describes the basis for the Board’s belief that the Participant has not substantially performed his or her duties and provides the Participant with thirty (30) days to take corrective action, and
(B) within the Change of Control Period, the occurrence of any of the following events: (i) the Participant’s conviction of, or plea of nolo contendre to, a felony that the Board reasonably believes has had or will have a material
detrimental effect on the Company’s reputation or business; (ii) the Participant’s willful gross misconduct with regard to the Company that is materially injurious to the Company; (iii) any act of personal dishonesty taken by the
Participant in connection with his or her responsibilities as an employee of the Company with the intention or reasonable expectation that such action may result in substantial personal enrichment of the Participant or (iv) the
Participant’s willful and continued failure to perform the duties and responsibilities of his or her position after there has been delivered to the Participant a written demand for performance from the Board which describes the basis for the
Board’s belief that the Participant has not substantially performed his or her duties and provides the Participant with thirty (30) days to take corrective action. 
 (e) “Change of Control” shall mean the occurrence of any of the following events: (i) any “person” (as such term is used in Sections 13(d) and 14(d) of the Securities
Exchange Act of 1934, as amended) becoming the “beneficial owner” (as defined in Rule 13d-3 under said Act), directly or indirectly, of securities of the Company representing 50% or more of the total voting power represented by the
Company’s then outstanding voting securities; (ii) the sale or disposition by the Company of all or substantially all of the Company’s assets; (iii) the consummation of any merger or consolidation of the Company with any other
corporation, other than a merger or consolidation which would result in the voting securities of the Company outstanding immediately prior thereto continuing to represent (either by remaining outstanding or by being converted into voting securities
of the surviving entity) more than 50% of the total voting power represented by the voting securities of the Company or such surviving entity outstanding immediately after such merger or consolidation, or (iv) a change in the composition of the
Board, as a result of which fewer than a majority of the Board members are Incumbent Directors. “Incumbent Directors” shall mean Board members who either (A) are members of the Board on the Plan Effective Date or (B) are elected,
or nominated for election, to the Board with the affirmative votes of at least a majority of those Board members whose election or nomination was not in connection with any transactions described in subsections (i), (ii) or (iii) or in
connection with an actual or threatened proxy contest relating to the election of directors of the Company. 

  
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 (f) “Change of Control Period” shall mean the one (1) year period
commencing upon the occurrence of a Change of Control. 
 (g) “Code” shall mean the Internal Revenue Code of
1986, as amended. 
 (h) “Committee” shall mean the Board or such committee appointed by the Board to act as
the committee for purposes of administering the Plan. 
 (i) “Company” shall mean KLA-Tencor Corporation, a
Delaware corporation, and any successor entity. 
 (j) “Employee” shall mean an individual who is a full-time
regular employee of one or more members of the Employer Group, subject to the control and direction of the employer entity as to both the work to be performed and the manner and method of performance. An individual shall be deemed to continue in
Employee status for so long as he or she continues as a full-time regular employee of at least one member of the Employer Group. 
 (k) “Employer Group” means (i) the Company and (ii) each of the other members of the controlled group that includes the Company, as determined in accordance with Sections 414(b)
and (c) of the Code, except that in applying Sections 1563(1), (2) and (3) of the Code for purposes of determining the controlled group of corporations under Section 414(b), the phrase “at least 50 percent” shall be
used instead of “at least 80 percent” each place the latter phrase appears in such sections and in applying Section 1.414(c)-2 of the Treasury Regulations for purposes of determining trades or businesses that are under common control
for purposes of Section 414(c), the phrase “at least 50 percent” shall be used instead of “at least 80 percent” each place the latter phrase appears in Section 1.414(c)-2 of the Treasury Regulations. 

(l) “Good Reason” shall mean (i) a material reduction of the Participant’s duties, authority or
responsibilities; (ii) a material change in the Participant’s reporting requirements such that the Participant is required to report to a person whose duties, responsibilities and authority are materially less than those of the person to
whom the Participant was reporting immediately prior to such change, (iii) a material reduction in the Participant’s Base Salary, other than a reduction that applies to other executives generally; (iv) a material reduction in the
aggregate level of the Participant’s overall compensation, other than a reduction that applies to other executives generally; or (iv) a material relocation of the Participant’s office, with a relocation of more than fifty
(50) miles from its then present location to be deemed material, unless the relocated office is closer to the Participant’s then principal residence; provided however, that in no event shall the Participant’s Separation from
Service be deemed to be for Good Reason unless (x) the Participant provides the Company with written notice specifying in detail the event or transaction constituting grounds for a Good Reason resignation and delivered to the Company within
ninety (90) days after the occurrence of that event or transaction, (y) the Company fails to remedy the purported Good Reason event or transaction within a reasonable cure period of at least thirty (30) days following receipt of such
notice and (z) the Participant resigns for such Good Reason within sixty (60) days after the Company’s failure to take such timely curative action, but in no event more than one hundred eighty (180) days after the occurrence of
the event or transaction identified in the clause (x) notice to the Company as the grounds for the Good Reason resignation. 

  
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 (m) “Participant” shall mean an Employee who meets the eligibility
requirements of Section 3. 
 (n) “Plan” shall mean this KLA-Tencor Corporation 2010 Executive Severance
Plan. 
 (o) “Plan Effective Date” shall mean November 3, 2010. 

(p) “Plan Year” shall mean the Company’s fiscal year. 

(q) “Prorated Annual Incentive” shall mean the aggregate incentive bonus paid to the Participant under the
Company’s various incentive bonus plans for the Company’s most recently completed fiscal year, including any portion earned but deferred, multiplied by a fraction, the numerator of which is the number of days in the Company’s then
current fiscal year through the date of the Participant’s Separation from Service, and the denominator of which is equal to 365. 
 (r) “Separation from Service” means the Participant’s cessation of Employee status by reason of his or her death, retirement or termination of employment. The Participant shall be
deemed to have terminated employment for such purpose at such time as the level of his or her bona fide services to be performed as an Employee (or non-employee consultant) permanently decreases to a level that is not more than twenty percent
(20%) of the average level of services he or she rendered as an Employee during the immediately preceding thirty-six (36) months (or such shorter period for which he or she may have rendered such service). Any such determination as to
Separation from Service, however, shall be made in accordance with the applicable standards of the Treasury Regulations issued under Code Section 409A. In addition to the foregoing, a Separation from Service will not be deemed to have occurred
while an Employee is on military leave, sick leave or other bona fide leave of absence if the period of such leave does not exceed six (6) months or any longer period for which such Employee’s right to reemployment with one or more members
of the Employer Group is provided either by statute or contract; provided, however, that in the event of an Employee’s leave of absence due to any medically determinable physical or mental impairment that can be expected to result
in death or to last for a continuous period of not less than six (6) months and that causes such individual to be unable to perform his or her duties as an Employee, no Separation from Service shall be deemed to occur during the first
twenty-nine (29) months of such leave. If the period of leave exceeds six (6) months (or twenty-nine (29) months in the event of disability as indicated above) and the Employee’s right to reemployment is not provided either by
statute or contract, then such Employee will be deemed to have a Separation from Service on the first day immediately following the expiration of such six (6)-month or twenty-nine (29)-month period. 

(s) “Severance Multiple” shall mean 1.5 (for purposes of clarification, if the Committee has limited a
Participant’s participation hereunder to certain Separations from Service (e.g., only to Separations of Service during or related to the Change of Control Period), then the Severance Multiple shall be zero (0) with respect to any other
Separation from Service, notwithstanding this definition). 
 (t) “Severance Payment” shall mean the payment of
severance compensation as provided in Section 4 hereof. 

  
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 (u) “Severance Period” shall mean 18 months. 

(v) “Specified Employee” means any individual who is, at any time during the twelve (12)-month period ending with the
identification date specified below, a “key employee” (within the meaning of that term under Code Section 416(i)), as determined by the Committee in accordance with the applicable standards of Code Section 409A and the Treasury
Regulations thereunder and applied on a consistent basis for all non-qualified deferred compensation plans of the Employer Group subject to Code Section 409A. The Specified Employees shall be identified by the Committee on December 31 each
year and shall have that status for the twelve (12)-month period beginning on the April 1 subsequent to such determination by the Committee. 
 3. Eligibility 
 (a) Required Release. In order to qualify for
severance benefits under Section 4(b), 4(c) or 4(d) of the Plan, the Participant must, within twenty-one (21) days (or forty-five (45) days to the extent any such longer period is required under applicable law) after the date of his
or her Separation from Service, sign and deliver to the Company a general waiver and release (the “Required Release”) in the form provided by (and in favor of) the Company, and such Required Release must become effective under applicable
law following the expiration of any applicable revocation period under federal or state law. 
 (b) Participation in
Plan. The Committee shall from time to time designate the Employees who are to participate in the Plan. The Committee may, with respect to one or more such designated Participants, limit their participation to certain Separations from Service
during or related to the Change of Control Period as set forth in Sections 4(c) and 4(d) hereof and not allow them to participate with respect to certain Separations from Service outside of and unrelated to the Change of Control Period, as set forth
in Section 4(b) hereof. A Participant shall cease to be a Participant upon cessation of Employee status (unless such Participant is then entitled to a Severance Payment under the Plan) or upon the expiration date of the Plan. However, a
Participant who becomes entitled to a Severance Payment shall remain a Participant in the Plan until the full amount of his or her benefits under the Plan have been provided to such Participant, notwithstanding the prior expiration of the Plan. Upon
receipt of all the Severance Payments, the Participant releases the Company from any and all further obligations under the Plan. 
 4. Severance Benefits 
 (a) Termination of Employment. Except as
otherwise provided in this Section 4(a), upon the termination of the Participant’s Employee status for any reason, the Participant shall be immediately entitled to any (i) unpaid Base Salary accrued through the effective date of such
termination; (ii) unreimbursed business expenses required to be reimbursed to the Participant in accordance with the Company’s business expense reimbursement policy, and (iii) pay for accrued but unused vacation that the Company is
legally obligated to pay the Participant. Any amounts deferred by such Participant under one or more of the Company’s non-qualified deferred compensation programs subject to Section 409A of the Code which remain unpaid on the termination
date shall be paid at such time and in such manner as set forth in each applicable plan or agreement governing the payment of those deferred amounts, subject, however, to the deferred payment provisions of Section 6


  
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below. Amounts deferred under any other deferred compensation plans or programs shall be paid to the Participant in accordance with the terms and provisions of each such applicable plan or
program. In addition, should the Participant incur a Separation from Service because his or her service as an Employee is terminated or reduced by the Company other than for Cause or by the Participant for Good Reason, then the Participant shall be
entitled to the amounts and benefits specified below. 
 (b) Termination by the Company Without Cause or the Participant
Terminates for Good Reason Outside of the Change of Control Period. If the Participant incurs a Separation from Service because his or her service as an Employee is reduced or terminated by the Company without Cause or by the Participant for
Good Reason, and such Separation from Service does not occur during the Change of Control Period, then, subject to Sections 3(a) and 5, the Participant shall receive: (i) an amount equal to the Participant’s Severance Multiple
multiplied by the Participant’s Base Salary, payable in successive equal installments over the Severance Period in accordance with the Company’s normal payroll policies for salaried employees, with the first such payment to begin on the
first payday within the sixty (60)-day period following the date of such Separation from Service on which the Participant’s Required Release is effective, but in no event shall such initial payment be made later than the last business day of
such sixty (60)-day period on which the Release is so effective; (ii) partial vesting acceleration with respect to the Participant’s then outstanding unvested equity awards, with the amount of such accelerated vesting being equal to, for
each such award, (A) the product of the number of shares originally granted under such award (as such number may be modified based upon the satisfaction of (or failure to satisfy) any performance criteria applicable to such award; with respect
to any award for which satisfaction of the performance criteria applicable to such award has not yet been determined as of the date of such Participant’s Separation from Service, the number of shares under such award for purposes of this clause
(A) shall only be calculated following the determination of the extent to which such performance criteria have actually been satisfied (if at all)) multiplied by the Acceleration Ratio, less (B) the number of shares under such award that
have actually vested in accordance with the terms of such award (without giving effect to the acceleration terms hereunder) as of the date of the Participant’s Separation from Service hereunder; and (iii) with respect to any of the
Participant’s then outstanding options or stock appreciation rights granted on or after January 1, 2006 (“New Options/SARs”), an extended post-termination exercise period for each such New Option/SAR equal to the earlier of
(x) twelve (12) months from the date of the Participant’s cessation of Employee status or (y) the expiration date of the maximum term (not to exceed ten years) of such New Option/SAR. The Company will amend the agreements
(e.g., restricted stock unit agreements or stock option agreements) underlying a Participant’s equity awards outstanding as of the date of such Participant’s Separation from Service to the extent necessary to give effect to the
provisions of this Section 4(b). 
 (c) Termination Without Cause or Resignation for Good Reason During the Change of
Control Period. If the Participant incurs a Separation from Service because his or her service as an Employee is reduced or terminated by the Company without Cause or by the Participant for Good Reason, and such Separation from Service occurs
within the Change of Control Period, then, subject to Sections 3(a) and 5, Participant shall receive: (i) a cash amount equal to the Participant’s Severance Multiple multiplied by the Participant’s Base Salary, payable in
successive equal installments over the Severance Period in accordance with the Company’s normal payroll policies for salaried employees, with the first such payment to begin on the first payday within the sixty (60)-day period following the
date of his or her Separation from Service on which the 

  
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Participant’s Required Release is effective, but in no event shall such initial payment be made later than the last business day of such sixty (60)-day period on which the Release is so
effective; (ii) the Participant’s Prorated Annual Incentive, with such payment to be made in a lump sum at the same time as the first installment payment under clause (i) above; (iii) 100% accelerated vesting with respect to each
of the Participant’s then outstanding unvested equity awards (provided that, with respect to any award for which satisfaction of the performance criteria applicable to such award has not yet been determined as of the date of such
Participant’s Separation from Service, the number of shares under such award that shall be accelerated for purposes of this clause (iii) shall only be equal to the final number of shares under such award, as calculated following the
determination of the extent to which such performance criteria have actually been satisfied (if at all)); and (iv) an extended post-termination exercise period for each New Option/SAR equal to the earlier of (x) twelve (12) months
from the date of the Participant’s cessation of Employee status or (y) the expiration date of the maximum term (not to exceed ten years) of such New Option/SAR. The Company will amend the agreements (e.g., restricted stock unit
agreements or stock option agreements) underlying a Participant’s equity awards outstanding as of the date of such Participant’s Separation from Service to the extent necessary to give effect to the provisions of this
Section 4(c). 
 (d) Certain Terminations Prior to a Change of Control. If at any time during the period beginning
with the execution of a definitive agreement to effect a Change of Control and ending with the earlier (x) the termination of that agreement without a Change of Control or (y) the effective date of the Change of Control contemplated by
that agreement, the Participant incurs a Separation from Service because his or her service as an Employee is reduced or terminated by the Company without Cause or by the Participant for Good Reason, then each of his or her outstanding equity
awards, whether vested or unvested, shall, notwithstanding anything to the contrary in the documents evidencing those awards, remain outstanding for a period of six (6) months following such Separation from Service (or, if earlier, until the
expiration date of the maximum term (not to exceed ten years) of such award). Should the Change of Control contemplated by that agreement become effective during that six (6)-month period, then, subject to Sections 3(a) and 5, Participant shall
thereupon become entitled to the following benefits: (i) the unvested portion of each of his or her outstanding equity awards shall vest immediately (provided that, with respect to any award for which satisfaction of the performance criteria
applicable to such award has not yet been determined as of the date of such Participant’s Separation from Service, the number of shares under such award that shall be accelerated for purposes of this clause (i) shall only be equal to the
final number of shares under such award, as calculated following the determination of the extent to which such performance criteria have actually been satisfied (if at all)); (ii) each of his or her New Options/SARs shall have an extended
post-termination exercise period equal to the earlier of (x) twelve (12) months from the date of his or her cessation of Employee status or (y) the expiration date of the maximum term (not to exceed ten years) of such New Option/SAR;
(iii) a cash amount equal to the Participant’s Severance Multiple multiplied by the Participant’s Base Salary, payable in successive equal installments over the Severance Period in accordance with the Company’s normal payroll
policies for salaried employees, with the first such payment to begin on the first payday within the sixty (60)-day period following the date of his or her Separation from Service on which the Participant’s Required Release is effective, but in
no event shall such initial payment be made later than the last business day of such sixty (60)-day period on which the Release is so effective; and (iv) the Participant’s Prorated Annual Incentive, with such payment to be made in a lump
sum at the same time as the first installment payment under 

  
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clause (iii) above. The severance benefits payable under this Section 4(d) shall be in lieu of any severance benefits to which the Participant might otherwise be entitled under
Section 4(c); accordingly, there shall be no duplication of benefits under Sections 4(c) and 4(d). The Company will amend the agreements (e.g., restricted stock unit agreements or stock option agreements) underlying a Participant’s
equity awards outstanding as of the date of such Participant’s Separation from Service to the extent necessary to give effect to the provisions of this Section 4(d). 

(e) Code Section 409A Status. The Participant’s right to receive compensation continuation payments pursuant to clause
(i) of Section 4(b), clause (i) of Section 4(c) or clause (iii) of Section 4(d)) shall in each instance be treated, for purposes of Code Section 409A, as a right to a series of separate payments. To the extent the
Participant vests in any outstanding restricted stock unit award or other similar full value equity award in accordance with the provisions of Section 4(b), 4(c) or 4 (d), the underlying shares of the Company’s common stock shall be issued
on the date that award vests upon the satisfaction of the applicable requirements for such vesting (including the Release requirements under Section 3(a)) or as soon as administratively practicable thereafter, but in no event later than the
fifteenth day of the third calendar month following such vesting date. The Participant’s right to receive shares of the Company’s common stock in one or more installments under such equity awards shall, for purposes of Code
Section 409A, be treated as a right to receive a series of separate payments. 
 (f) Code Section 280G Best
Results. If any payment or benefit Participant would receive pursuant to this Plan or otherwise, including accelerated vesting of any equity compensation (“Payment”) would (i) constitute a “parachute payment” within the
meaning of Code Section 280G, and (ii) but for this sentence, be subject to the excise tax imposed by Code Section 4999 (the “Excise Tax”), then such Payment shall be reduced to the Reduced Amount. The “Reduced
Amount” shall be either (x) the largest portion of the Payment that would result in no portion of the Payment being subject to the Excise Tax or (y) the largest portion, up to and including the total, of the Payment, whichever amount,
after taking into account all applicable federal, state and local employment taxes, income taxes, and the Excise Tax (all computed at the highest applicable marginal rate), results in Participant’s receipt, on an after-tax basis, of the greater
amount of the Payment notwithstanding that all or some portion of the Payment may be subject to the Excise Tax. If a reduction in payments or benefits constituting “parachute payments” is necessary so that the Payment equals the Reduced
Amount, reduction shall occur in the following order: (A) cash payments shall be reduced first and in reverse chronological order such that the cash payment owed on the latest date following the occurrence of the event triggering such excise
tax will be the first cash payment to be reduced; (B) accelerated vesting of stock awards shall be cancelled/reduced next and in the reverse order of the date of grant for such stock awards (i.e., the vesting of the most recently granted stock
awards will be reduced first), with full-value awards reversed before any stock option or stock appreciation rights are reduced; and (C) employee benefits shall be reduced last and in reverse chronological order such that the benefit owed on
the latest date following the occurrence of the event triggering such excise tax will be the first benefit to be reduced. 
 The
Company shall appoint a nationally recognized accounting or other firm to make the determinations required hereunder and perform the foregoing calculations. The Company shall bear all expenses with respect to the determinations by such accounting
firm required to be made hereunder. 

  
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 The accounting firm engaged to make the determinations hereunder shall provide its
calculations, together with detailed supporting documentation, to the Company and Participant within fifteen (15) calendar days after the date on which right to a Payment is triggered (if requested at that time by the Company or Participant) or
such other time as requested by the Company or Participant. Any good faith determinations of the accounting firm made hereunder shall be final, binding and conclusive upon the Company and Participant. 

(g) Mitigation Required. Payments and benefits provided for under the Plan shall be reduced by any compensation or benefits earned
by the Participant as a result of any earnings or benefits that the Participant may receive from any other source following his or her termination of employment. Moreover, payments and benefits provided for under the Plan shall be reduced by any
payments or benefits received by Participant pursuant to any other plan, policy, agreement or arrangement with the Company. 

5. Covenants Not to Compete and Not to Solicit. 
 (a) Remedies for Breach. The Company’s obligations to provide Severance Payments as provided in Section 4 are expressly conditioned upon the Participant’s covenants not to compete
and not to solicit as provided herein. In the event the Participant breaches his or her obligations to the Company as provided herein, the Company’s obligations to make Severance Payments to the Participant pursuant to Section 4 shall
cease (subject to Section 5(b) below), without prejudice to any other remedies that may be available to the Company. 
 (b)
Covenant Not to Compete. If a Participant is receiving Severance Payments pursuant to Section 4 hereof, then for the duration of the Severance Period, the Participant shall not directly engage in (whether as an employee, consultant,
proprietor, partner, director or otherwise), or have any ownership interest in, or participate in the financing, operation, management or control of, any person, firm, corporation or business that engages or participates anywhere in the world in
providing goods and services similar to those provided by the Company upon the date of the Participant’s termination of employment. Ownership of less than 3% of the outstanding voting stock of a publicly-held corporation or other entity shall
not constitute a violation of this provision. In the event of a violation of this Section 5(b) by a Participant, all severance benefits payable to the Participant under this Plan shall cease, except that the Participant shall nonetheless be
entitled to receive, as consideration for his or her delivery of an effective Required Release, the cash severance payments contemplated by Section 4(b)(i), 4(c)(i) or 4(d)(iii) (as applicable) for a period equal to the greater of (i) the
period of time between the date of the Participant’s Separation from Service and the date of violation of this Section 5(b) and (ii) the six (6) months following the date of the Participant’s Separation from Service.

 (c) Covenant Not to Solicit. If a Participant is receiving Severance Payments pursuant to Section 4 hereof,
he or she shall not, at any time during the Severance Period, directly or indirectly solicit any individuals to leave the Company’s employ for any reason or interfere in any other manner with the employment relationships at the time
existing between the Company and its current or prospective employees. 

  
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 (d) Representations. The covenants contained in this Section 5 shall be
construed as a series of separate covenants, one for each county, city and state (or analogous entity) and country of the world. If, in any judicial proceeding, a court shall refuse to enforce any of the separate covenants, or any part thereof, then
such unenforceable covenant, or such part thereof, shall be deemed eliminated from this Plan for the purpose of those proceedings to the extent necessary to permit the remaining separate covenants, or portions thereof, to be enforced. 

(e) Reformation. In the event that the provisions of this Section 5 should ever be deemed to exceed the time or geographic
limitations, or scope of this covenant, permitted by applicable law, then such provisions shall be reformed to the maximum time or geographic limitations, as the case may be, permitted by applicable laws. 

6. Special Limitations on Benefit Payments. The following special provisions shall govern the commencement date of the payments
and benefits to which a Participant may become entitled under the Plan: 
 (a) Notwithstanding any provision in this Plan to the
contrary (other than Section 6(b) below), no payment or benefit under the Plan which constitutes an item of deferred compensation under Section 409A of the Code and becomes payable by reason of the Participant’s Separation from
Service will be made to such Participant prior to the earlier of (i) the first day following the six-month anniversary of the date of Separation of Service or (ii) the date of the Participant’s death, if the Participant
is deemed at the time of such Separation from Service to be a Specified Employee and such delayed commencement is otherwise required in order to avoid a prohibited distribution under Code Section 409A(a)(2). Upon the expiration of the
applicable deferral period, all payments, benefits and reimbursements deferred pursuant to this Section 6(a) (whether they would have otherwise been payable in a single sum or in installments in the absence of such deferral) shall be paid or
provided to the Participant in a lump sum on the date that is six (6) months and one (1) day after the date of his or her Separation from Service or, if earlier, the first day of the month immediately following the date the Company
receives proof of his or her death. Any remaining payments or benefits due under the Plan will be paid in accordance with the normal payment dates specified herein. 
 (b) Notwithstanding Section 6(a) above, the following provisions shall also be applicable to a Participant who is a Specified Employee at the time of his or her Separation of Service: 

(i) Any payments or benefits under the Plan which become due and payable to such Participant during the period beginning
with the date of his or her Separation from Service and ending on March 15 of the following calendar year shall not be subject to the six (6)-month holdback under Section 6(a) and shall accordingly be paid as and when they become due and
payable under the Plan. 
 (ii) The remaining portion of the payments and benefits to which the Participant
becomes entitled under the Plan, to the extent they do not in the aggregate exceed the dollar limit described below and are otherwise scheduled to be paid no later than the last day of the second calendar year following the calendar year in which
the Participant’s 

  
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Separation from Service occurs, shall not be subject to any deferred commencement date under Section 6(a) and shall be paid to the Participant as they become due and payable under the Plan.
For purposes of this subparagraph (ii), the applicable dollar limitation will be equal to two times the lesser of (i) the Participant’s annualized compensation (based on his or her annual rate of pay for the calendar year
preceding the calendar year of his or her Separation from Service, adjusted to reflect any increase during that calendar year which was expected to continue indefinitely had such Separation from Service not occurred) or (ii) the compensation
limit under Section 401(a)(17) of the Code as in effect in the year of such Separation from Service. To the extent the portion of the severance payments and benefits to which the Participant would otherwise be entitled under the Plan during the
deferral period under Section 6(a) exceeds the foregoing dollar limitation and the amount payable pursuant to subparagraph (i) above, such excess shall be paid in a lump sum upon the expiration of that deferral period, in accordance with
the payment delay provisions of Section 6(a), and the remaining severance payments and benefits (if any) shall be paid in accordance with the normal payment dates specified for them herein. 

7. Employment Status; Withholding 
 (a) Employment Status. This Plan does not constitute a contract of employment or impose on the Participant or the Company any obligation to retain the Participant as an Employee, to change the
status of the Participant’s employment, or to change the Company’s policies regarding termination of employment. The Participant’s employment is and shall continue to be at-will, as defined under applicable law. If the
Participant’s employment with the Company or a successor entity terminates for any reason, the Participant shall not be entitled to any payments, benefits, damages, awards or compensation other than as provided by this Plan or available in
accordance with the Company’s established employee plans and practices or other agreements with the Company at the time of termination. 
 (b) Taxation of Plan Payments. All amounts paid pursuant to this Plan shall be subject to all applicable payroll and withholding taxes. 

8. Arbitration. Any dispute or controversy that shall arise out of the terms and conditions of the Plan and that cannot be
resolved within thirty (30) days of the dispute or controversy through good-faith negotiation or non-binding mediation between the Participant and the Company, shall be subject to binding arbitration in Santa Clara, California before the
American Arbitration Association under its National Rules for the Resolution of Employment Disputes, supplemented by the California Rules of Civil Procedure. The Company and the Participant shall each bear their own respective costs and
attorneys’ fees incurred in connection with the arbitration; and the Company shall pay the arbitrator’s fees, unless law applicable at the time of the arbitration hearing requires otherwise. The arbitrator shall issue a written decision
that sets forth the essential findings of fact and conclusions of law on which the award is based. The arbitrator’s decision shall be final and binding to the fullest extent permitted by law and enforceable by any court having jurisdiction
thereof. 

  
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 9. Successors to Company and Participants. 

(a) Company’s Successors. Any successor to the Company (whether direct or indirect and whether by purchase, lease, merger,
consolidation, liquidation or otherwise) to all or substantially all of the Company’s business and/or assets shall assume the obligations under this Plan and agree expressly to perform the obligations under this Plan by executing a written
agreement. For all purposes under this Plan, the term “Company” shall include any successor to the Company’s business and/or assets which executes and delivers the assumption agreement described in this subsection or which becomes
bound by the terms of this Plan by operation of law. 
 (b) Participant’s Successors. All rights of the Participant
hereunder shall inure to the benefit of, and be enforceable by, the Participant’s personal or legal representatives, executors, administrators, successors, heirs, devisees and legatees. 

10. Duration, Amendment and Termination 
 (a) Duration. The initial term of this Plan shall be from the Plan Effective Date to January 1, 2011. At the end of such initial term and any subsequent annual terms, the Plan shall be
automatically extended for a one (1) year period unless terminated by the Committee prior to the end of such term, provided that any such termination shall be effective only with respect to future Plan Years. Participants shall be given notice
of a Plan termination within sixty (60) days of the Committee’s decision. A termination of this Plan pursuant to the preceding sentence shall be effective for all purposes, except that such termination shall not affect the right of a
Participant whose Separation from Service occurred prior to the termination date of the Plan to receive any Severance Payment to which such Participant is then entitled under the terms of the Plan. 

(b) Change of Control. In the event of a Change of Control during the term of the Plan, the term of the Plan shall automatically
be the Change of Control Period. 
 (c) Amendment. The Committee shall have the discretionary authority to amend the Plan
at any time, except that no such amendment shall affect the right of a Participant whose Separation from Service occurred prior to the amendment date of the Plan to receive any Severance Payment to which such Participant is then entitled under the
terms of the Plan without the written consent of the Participant. 
 (d) No Impermissible Acceleration or Deferral. Any
action by the Committee to terminate the Plan or amend the Plan in accordance with the foregoing provisions of this Section 10 shall be effected in a manner so as not to result in any impermissible acceleration or deferral of benefits under
Code Section 409A or the Treasury Regulations thereunder. 
 11. Plan Administration 

(a) Plan Administrator. The Plan shall be administered by the Committee and the Committee shall be responsible for the general
administration and interpretation of the Plan and for carrying out its provisions. The Committee shall have such powers as may be necessary to discharge its duties hereunder. 

  
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 (b) Procedures. The Committee may adopt such rules, regulations and bylaws and shall
have the discretionary authority to make such decisions as it deems necessary or desirable for the proper administration of the Plan. Any rule or decision by the Committee shall be conclusive and binding upon all Participants. 

12. Miscellaneous Provisions. 
 (a) Notices and all other communications contemplated by this Plan shall be in writing and shall be deemed to have been duly given when personally delivered or when mailed by U.S. registered or certified
mail, return receipt requested and postage prepaid. In the case of the Participant, mailed notices shall be addressed to him or her at the home address which he or she most recently communicated to the Company in writing. In the case of the Company,
mailed notices shall be addressed to the Company’s Vice President, Human Resources, 1 Technology Drive, Milpitas, CA 95035. 
 (b) The invalidity or unenforceability of any provision of this Plan shall not affect the validity or enforceability of any other provision hereof, which shall remain in full force and effect. 

(c) The rights of any person to payments or benefits under this Plan shall not be made subject to option or assignment, either by
voluntary or involuntary assignment or by operation of law, including (without limitation) bankruptcy, garnishment, attachment or other creditor’s process, and any action in violation of this subsection shall be void. However, payments and
benefits under the Plan may be reduced or offset by any amount a Participant may owe the Company, to the extent permitted by applicable law. 
 (d) Company may assign its rights under this Plan to an affiliate, and an affiliate may assign its rights under this Plan to another affiliate of the Company or to the Company; provided, however, that no
assignment shall be made if the net worth of the assignee is less than the net worth of the Company at the time of assignment; provided, further, that the Company shall guarantee all benefits payable hereunder. In the case of any such assignment,
the term “Company” when used in this Plan shall mean the corporation that actually employs the Participant. 
 (e) To
the extent there is any ambiguity as to whether any provision of this Plan would otherwise contravene one or more requirements or limitations of Code Section 409A, such provision shall be interpreted and applied in a manner that does not result
in a violation of the applicable requirements or limitations of Code Section 409A and the Treasury Regulations thereunder. 

  
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 IN WITNESS WHEREOF, KLA-Tencor Corporation has caused this 2010 Executive Severance
Plan to be executed by a duly authorized officer effective as of November 3, 2010. 
  

			
	KLA-TENCOR CORPORATION
		
	 By:
	 	 /s/ BRIAN M. MARTIN

	 Name:
	 	Brian M. Martin
	 Title:
	 	Senior Vice President and General Counsel


  
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