-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
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<SEC-DOCUMENT>0000888002-11-000143.txt : 20110209
<SEC-HEADER>0000888002-11-000143.hdr.sgml : 20110209
<ACCEPTANCE-DATETIME>20110209081915
ACCESSION NUMBER:		0000888002-11-000143
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20110209
DATE AS OF CHANGE:		20110209
GROUP MEMBERS:		AXA
GROUP MEMBERS:		AXA ASSURANCES I.A.R.D. MUTUELLE
GROUP MEMBERS:		AXA ASSURANCES VIE MUTUELLE
GROUP MEMBERS:		AXA-EQUITABLE LIFE INSURANCE COMPANY

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			KLA TENCOR CORP
		CENTRAL INDEX KEY:			0000319201
		STANDARD INDUSTRIAL CLASSIFICATION:	OPTICAL INSTRUMENTS & LENSES [3827]
		IRS NUMBER:				042564110
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-33189
		FILM NUMBER:		11584545

	BUSINESS ADDRESS:	
		STREET 1:		160 RIO ROBLES
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95134
		BUSINESS PHONE:		4084344200

	MAIL ADDRESS:	
		STREET 1:		160 RIO ROBLES
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95161-9055

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	KLA INSTRUMENTS CORP
		DATE OF NAME CHANGE:	19920703

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AXA FINANCIAL INC
		CENTRAL INDEX KEY:			0000888002
		STANDARD INDUSTRIAL CLASSIFICATION:	LIFE INSURANCE [6311]
		IRS NUMBER:				133623351
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		1290 AVENUE OF THE AMERICAS
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10104
		BUSINESS PHONE:		2125541234

	MAIL ADDRESS:	
		STREET 1:		1290 AVENUE OF THE AMERICAS
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10104

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	EQUITABLE COMPANIES INC
		DATE OF NAME CHANGE:	19950721
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>klac1231_g.txt
<TEXT>

                                                           Page 1 of 10 Pages

                                   UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C.  20549

                                   SCHEDULE 13G

                   Under the Securities exchange Act of 1934

                             (AMENDMENT NO.1)*

                             KLA-TENCOR CORP
             -----------------------------------------------------
                              (NAME OF ISSUER)

                                  COM
             -----------------------------------------------------
                       (TITLE OF CLASS OF SECURITIES)

                                 482480100
             -----------------------------------------------------
                              (CUSIP NUMBER)

                           December 31, 2010
             -----------------------------------------------------
            (Date of event which requires filing of this Statement)

  Check the appropriate box to designate the rule pursuant to which
  this Schedule is filed:

    X  Rule 13d-1(b)
       Rule 13d-1(c)
       Rule 13d-1(d)

  * The remainder of this cover page shall be filled out for a reporting
  person's initial filing on this form with respect to the subject class
  of securities, and for any subsequent amendment containing information
  which would alter the disclosures provided in a prior cover page.

  The information required in the remainder of this cover page shall not
  be deemed to be 'filed' for the purpose of Section 18 of the Securities
  Exchange Act of 1934 ('Act') or otherwise subject to the liabilities
  of that section of the Act but shall be subject to all other provisions
  of the Act (however, see the Notes).

                       (CONTINUED ON FOLLOWING PAGE(S))




<PAGE

    CUSIP NO. 482480100           13G                        Page 2 of 10 Pages

  1. NAME OF REPORTING PERSON
     S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

        AXA Assurances I.A.R.D. Mutuelle

  2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP *                (A) [ ]
                                                                       (B) [ ]

  3. SEC USE ONLY

  4. CITIZENSHIP OR PLACE OF ORGANIZATION
     France


           NUMBER OF SHARES   5. SOLE VOTING POWER                           0
               BENEFICIALLY
                OWNED AS OF   6. SHARED VOTING POWER                   125,900
          December 31, 2010
                    BY EACH   7. SOLE DISPOSITIVE POWER                      0
                  REPORTING
               PERSON WITH:   8. SHARED DISPOSITIVE POWER              142,015


  9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH                       142,015
     REPORTING PERSON
     (Not to be construed as an admission of beneficial ownership)

 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
     SHARES *                                                              [X]



 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9                      0.1%

 12. TYPE OF REPORTING PERSON *
     HC

                    * SEE INSTRUCTIONS BEFORE FILLING OUT!

<PAGE

CUSIP NO. 482480100                13G                     Page 3 of 10 Pages

  1. NAME OF REPORTING PERSON
     S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

        AXA Assurances Vie Mutuelle

  2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP *                (A) [ ]
                                                                       (B) [ ]

  3. SEC USE ONLY

  4. CITIZENSHIP OR PLACE OF ORGANIZATION
        France


           NUMBER OF SHARES   5. SOLE VOTING POWER                           0
               BENEFICIALLY
                OWNED AS OF   6. SHARED VOTING POWER                   125,900
          December 31, 2010
                    BY EACH   7. SOLE DISPOSITIVE POWER                      0
                  REPORTING
               PERSON WITH:   8. SHARED DISPOSITIVE POWER              142,015



  9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH                       142,015
     REPORTING PERSON
     (Not to be construed as an admission of beneficial ownership)

 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
     SHARES *                                                              [X]


 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9                      0.1%

 12. TYPE OF REPORTING PERSON *
     HC


 <PAGE

CUSIP NO. 482480100                13G                     Page 4 of 10 Pages

  1. NAME OF REPORTING PERSON
     S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

        AXA

  2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP *                (A) [ ]
                                                                       (B) [ ]

  3. SEC USE ONLY

  4. CITIZENSHIP OR PLACE OF ORGANIZATION
     France


           NUMBER OF SHARES   5. SOLE VOTING POWER                           0
               BENEFICIALLY
                OWNED AS OF   6. SHARED VOTING POWER                   125,900
          December 31, 2010
                    BY EACH   7. SOLE DISPOSITIVE POWER                      0
                  REPORTING
               PERSON WITH:   8. SHARED DISPOSITIVE POWER              142,015


  9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH                       142,015
     (Not to be construed as an admission of beneficial ownership)

 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
     SHARES *                                                              [X]



 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9                      0.1%

 12. TYPE OF REPORTING PERSON *
     HC

                    * SEE INSTRUCTIONS BEFORE FILLING OUT!

<PAGE

CUSIP NO. 482480100                13G                     Page 5 of 10 Pages

  1. NAME OF REPORTING PERSON
     S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

        AXA Financial, Inc.      13-3623351

  2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP *                (A) [ ]
                                                                       (B) [ ]

  3. SEC USE ONLY

  4. CITIZENSHIP OR PLACE OF ORGANIZATION
     State of Delaware

           NUMBER OF SHARES   5. SOLE VOTING POWER                           0
               BENEFICIALLY
                OWNED AS OF   6. SHARED VOTING POWER                         0
          December 31, 2010
                    BY EACH   7. SOLE DISPOSITIVE POWER                      0
                  REPORTING
               PERSON WITH:   8. SHARED DISPOSITIVE POWER                3,615


  9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH                         3,615
     REPORTING PERSON
     (Not to be construed as an admission of beneficial ownership)

 10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
     SHARES *                                                              [X]


 11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9                      0.0%

 12. TYPE OF REPORTING PERSON *
     HC

                    * SEE INSTRUCTIONS BEFORE FILLING OUT!

<PAGE
CUSIP NO. 482480100                13G                     Page 6 of 10 Pages


Item 1(a) Name of Issuer:
          KLA-TENCOR CORP

Item 1(b) Address of Issuer's Principal Executive Offices:
          One Technology Drive
          Milpitas,  CA 95035-


Item 2(a) and (b)
          Name of Person Filing and Address of Principal Business Office:

This Schedule 13G is being filed by AXA Financial, Inc.; AXA, which owns AXA
Financial, Inc.; and the Mutuelles AXA, which as a group control AXA

          AXA Assurances I.A.R.D Mutuelle, and
          AXA Assurances Vie Mutuelle,
          26, rue Drouot
          75009 Paris, France

          as a group (collectively, the 'Mutuelles AXA').

          AXA
          25, avenue Matignon
          75008 Paris, France

          AXA Financial, Inc.
          1290 Avenue of the Americas
          New York, New York 10104

  (Please contact Chris Winans (212-314-5519) or Michael Arcaro (212-314-2030)
   with any questions.)






<PAGE>

                                   13G                     Page 7 of 10 Pages
Item 2(c) Citizenship:
          Mutuelles AXA and AXA - France
          AXA Financial, Inc. - Delaware

Item 2(d) Title of Class of Securities:  COM

Item 2(e) Cusip Number:  482480100

Item 3.   Type of Reporting Person:
          AXA Financial, Inc. as a parent holding company,
          in accordance with 240.13d-1(b)(ii)(G).

          The Mutuelles AXA, as a group, acting as a parent
          holding company.

          AXA as a parent holding company.



<PAGE>
                                   13G                     Page 8 of 10 Pages


Item 4. Ownership as of 12/31/2010

        (a) Amount Beneficially Owned:  142,015  shares of common stock
        (b) Percent of Class:  0.1%

        (c) Deemed Voting Power and Disposition Power:

<TABLE>
<CAPTION>
                        (i)           (ii)          (iii)         (iv)
                        Deemed        Deemed        Deemed        Deemed
                        to have       to have       to have       to have
                        Sole Power    Shared Power  Sole Power    Shared Power
                        to Vote       to Vote       to Dispose    to Dispose
                        or to         or to         or to         or to
                        Direct        Direct        Direct the    Direct the
                        the Vote      the Vote      Disposition   Disposition
                        ------------  ------------  ------------  ------------
<S>                     <C>           <C>           <C>           <C>


The Mutuelles                      0       125,900             0       138,400
AXA, AXA, as
holding companies

AXA Financial, Inc.,               0             0             0         3,615
 through its
subsidiaries

</TABLE>

Each of the Mutuelles AXA, as a group, and AXA expressly declares that the
filing of this Schedule 13G shall not be construed as an admission that it is,
for purposes of Section 13(d) of the Exchange Act, the beneficial owner of any
securities covered by this Schedule 13G.

AllianceBernstein L.P. is a majority owned subsidiary of AXA Financial, Inc.
and an indirect majority owned subsidiary of AXA SA.  AllianceBernstein
operates under independent management and makes independent decisions from
AXA and AXA Financial and their respective subsidiaries and AXA and AXA
Financial calculate and report beneficial ownership separately from
AllianceBernstein pursuant to guidance provided by the Securities and
Exchange Commission in Release Number 34-39538 (January 12, 1998).

AllianceBernstein may be deemed to share beneficial ownership with AXA reporting
persons by virtue of 3,615 shares of common stock acquired on behalf of the
general and separate accounts of the affiliated entities for which
AllianceBernstein serves as a subadvisor. Each of AllianceBernstein and the AXA
entities reporting herein acquired their shares of common stock for investment
purposes in the ordinary course of their investment management and insurance

<PAGE>

                                                            Page 9 of 10 Pages

Item 5. Ownership of Five Percent or Less of a Class:
        If this statement is being filed to report the fact that as of the date
        hereof the reporting person has ceased to be the beneficial owner of
        more than five percent of the class of securities, check the following.

                                                                          [X]

Item 6. Ownership of More than Five Percent on behalf of Another Person.  N/A

Item 7. Identification and Classification of the Subsidiary which Acquired
        the Security Being Reporting on by the Parent Holding Company:

        This Schedule 13G is being filed by AXA Financial, Inc.; AXA,
        which owns AXA Financial, Inc.; and the Mutuelles AXA, which as a group
        control AXA:

   (X)  in the Mutuelles AXAs' capacity, as a group, acting as a parent
        holding company with respect to the holdings of the following
        AXA entity or entities:

   (X)  in AXA's capacity as a parent holding company with respect
        to the holdings of the following AXA entity or entities:

        AXA Investment Managers UK Ltd

        AXA Konzern AG (Germany)

        AXA Rosenberg Investment Management LLC

   (X)  in AXA Financial, Inc.'s capacity as a parent holding company
        with respect to the holdings of the following subsidiaries:

   (X)  AllianceBernstein L.P.
        (13-3434400), an investment adviser registered under
        Section 203 of the Investment Advisers Act of 1940.

   (X)  AXA Equitable Life Insurance Company
        (13-5570651), an insurance company and an investment
        adviser  registered under Section 203 of the Investment
        Advisers Act of 1940.


<PAGE>
                                                         Page 10 of 10 Pages

Item 8. Identification and Classification of Members of the Group.      N/A

Item 9.  Notice of Dissolution of Group:                                N/A

Item 10. Certification:

         By signing below I certify that to the best of my knowledge and
    belief, the securities referred to above were acquired in the ordinary
    course of business and were not acquired for the purpose of and do not
    have the effect of changing or influencing the control of the issuer
    of such securities and were not acquired in connection with or as a
    participant in any transaction having such purposes or effect.



         Signature

         After reasonable inquiry and to the best of my knowledge and
    belief, I certify that the information set forth in this statement
    is true, complete and correct.





   Date:    02/09/2011                     AXA FINANCIAL, INC.*






                                           /s/ Alvin H. Fenichel

                                              Alvin H. Fenichel
                                            Senior Vice President
                                        and Chief Accounting Officer






   *Pursuant to the Joint Filing Agreement with respect to Schedule 13G
    attached hereto as Exhibit I, among AXA Financial, Inc., AXA Assurances
    I.A.R.D Mutuelle, AXA Assurances Vie Mutuelle, and AXA, this statement

    Schedule 13G is filed on behalf of each of them.
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>3
<FILENAME>klac1231_e.txt
<DESCRIPTION>JOINT FILING AGREEMENT
<TEXT>

                                                                  EXHIBIT I



                                 JOINT FILING AGREEMENT
                                 ----------------------




     Each of the undersigned hereby agrees that the Schedule
 13G filed herewith is filed jointly, pursuant to Rule 13d-1(b)(1)
 of the Securities Exchange Act of 1934, as amended on behalf
  of each of them.


          Dated:    February 9, 2011

          AXA Financial, Inc.



          BY: /s/ Alvin H. Fenichel
             -----------------------------------------
             Alvin H. Fenichel
             Senior Vice President and Chief Accounting Officer



   AXA Assurances I.A.R.D. Mutuelle; AXA Assurances Vie
 Mutuelle; as a  group, and AXA

          Signed on behalf of each of the above entities



          BY: /s/ Alvin H. Fenichel
             -----------------------------------------
             Alvin H. Fenichel
             Attorney-in-Fact
             (Executed pursuant to Powers of Attorney)
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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