Company:  KLA TENCOR CORP (KLAC)
Form Type:  10-Q
Filing Date:  4/24/2009 
CIK:  0000319201 
Address:  160 RIO ROBLES 
City, State, Zip:  SAN JOSE, California 95134 
Telephone:  (408) 434-4200 
Fiscal Year:  06/30 
Last Trade
Last Trade: 
$31.89  
Change: 
-0.25 (-0.78%)  
Trade Time: 
Nov 20  
Market Cap: 
$5.45B
Description of Business
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  FORM 10-Q
    PART I. FINANCIAL INFORMATION
      ITEM 1. FINANCIAL STATEMENTS
        BALANCE SHEET
        INCOME STATEMENT
        CASH FLOW
        Notes to Condensed Consolidated Financial Statements
          BALANCE SHEET
      ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL ...
        BENEFICIAL OWNERS
        BENEFICIAL OWNERS
      ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT ...
      ITEM 4. CONTROLS AND PROCEDURES
    Certifications
    PART II. OTHER INFORMATION
      ITEM 1. LEGAL PROCEEDINGS
      ITEM 1A. RISK FACTORS
      ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF ...
      ITEM 3. DEFAULTS UPON SENIOR SECURITIES
      ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS
      ITEM 5. OTHER INFORMATION
      ITEM 6. EXHIBITS
    SIGNATURES
    EXHIBIT INDEX
  EXHIBIT 31.1
    Certification of Chief Executive Officer
  EXHIBIT 31.2
    Certification of Chief Financial Officer
  EXHIBIT 32
    CERTIFICATION OF CHIEF EXECUTIVE OFFICER