美国证券交易委员会华盛顿州，D.C.20549表格4有益所有权的变更声明[]如果不再受第16条的影响，请选中此框。表明4或表格5义务可能会继续。1.报告人的姓名和地址Tompkins，Jon D 24581 Summerhill Court Los Altos，CA 94024 2.发行人姓名和贸易商或交易符号KLA-Tencor Corporation（KLAC）3. I.R.S.识别报告人数，如果是实体（自愿）4.月份/年11月22日的声明5.如果修订，原始（月/年）6。报告人员向发行人的关系（检查所有适用）[x]导演[] 10％所有者[]官员（给出以下标题）[]其他（指明下文）董事7.个人或联合/小组申请（检查适用的行）[x]表格由一个报告人提交[]由多个报告人提交的表格

表我获得，处置，或有利地拥有的非衍生证券 - - - - - - - - - - - -------------------------------------------------------------------------------------------------------------------------1)Title of Security 2)Trans- 3.Trans- 4.Securities Acquired(A) 5)Amount of 6) 7)Nature of action action or Disposed of (D) Securities Indirect Date Code A Beneficially D Beneficial (Month/ or Owned at or Ownership Day/Year) Code V Amount D Price End of Month I - ------------------------------------------------------------------------------------------------------------------------------------ 普通股票31,416 D直接

表II（第1部分）获得，处置，或有利地拥有的衍生证券（第1至6栏） - - - - - - - - --------------------------------------------------------------------------------------------------------------------------------------------------------------------------1)Title of Derivative 2)Conversion 3)Trans- 4)Trans- 5)Number of Derivative 6)Date Exercisable and Security or Exercise action action Securities Acquired (A) Expiration Date Price of Date Code or Disposed of (D) Derivative Security Code V A D Exercisable Expiration - ------------------------------------------------------------------------------------------------------------------------------------ 非合格股票期权$ 37.0500 11/08/02 A 5,000 11/08/12（购买权）非合格股票期权$ 37.0500 11/08/02 A 5,000 11/08/12（购买权）

表II（第2部分）获得，处置或有利地拥有的衍生证券（专栏1,3和11） - - - - - - - ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------1)Title of Derivative 3)Trans- 7)Title and Amount 8)Price 9)Number of 10) 11)Nature of Security action of Underlying of Deri- Derivative Indirect Date Securities vative Securities D Beneficial Amount or Security Beneficially or Ownership Number of Owned at I - Title Shares End of Month - ------------------------------------------------------------------------------------------------------------------------------------ 非合格股票期权11/08/02普通股5,000 d Direct（购买权）非合格股票期权11/08/02普通股5,000 10,000 d Direct（买货） 答复解释：

报告人员签名/ s /乘坐：斯图尔特J. Nichols for：Jon D. Tompkins日期11/11/02