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<TITLE>KLA-Tencor Corporation  Form S-8</TITLE>
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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<P align="right"><FONT size="2"><B>As filed with the Securities and Exchange Commission on September&nbsp;27, 2002<BR>
Registration No.&nbsp;&nbsp;333-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</B></FONT>

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<P align="center"><FONT size="4"><B>SECURITIES AND EXCHANGE COMMISSION<BR></B></FONT>
<FONT size="2"><B>Washington, D.C. 20549</B></FONT>

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<P align="center"><FONT size="4"><B>FORM&nbsp;S-8</B></FONT><BR>
<FONT size="2"><B>REGISTRATION STATEMENT</B><BR>
<B><I>Under<BR>
The Securities Act of 1933</I></B></FONT>

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<P align="center"><FONT size="5"><B>KLA-TENCOR CORPORATION</B></FONT><BR>
<FONT size="2"><B>(Exact name of registrant as specified in its charter)</B></FONT>

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        <TD width="48%">&nbsp;</TD>
        <TD width="4%">&nbsp;</TD>
        <TD width="48%">&nbsp;</TD>
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<TR valign="bottom">
        <TD align="center" valign="top"><FONT size="2"><B>DELAWARE<BR>
(State of incorporation)</B></FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="center" valign="top"><FONT size="2">
<B>04-2564110<BR>
(I.R.S. Employer Identification No.)</B></FONT></TD>
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<P align="center"><FONT size="2"><B>160 Rio Robles<BR>
San Jose, CA 95134<BR>
(Address, including zip code, of principal executive offices)</B></FONT>

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<P align="center"><FONT size="2"><B>RESTATED 1982 STOCK OPTION PLAN<BR>
AMENDED AND RESTATED 1997 EMPLOYEE STOCK PURCHASE PLAN<BR>
AMENDED AND RESTATED 2000 NON-STATUTORY STOCK OPTION PLAN<BR>
(Full Titles of the Plans)</B></FONT>

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<P align="center"><FONT size="2"><B>STUART J. NICHOLS<BR>
VICE PRESIDENT, GENERAL COUNSEL<BR>
KLA-TENCOR CORPORATION<BR>
160 Rio Robles<BR>
San Jose, CA 95134<BR>
(Name and address of agent for service)</B></FONT>

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<P align="center"><FONT size="2"><B>(408)&nbsp;875-4200<BR>
(Telephone number, including area code, of agent for service)</B></FONT>

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<P align="center"><FONT size="2"><I>Copies to:</I><BR>
<B>LARRY W. SONSINI, ESQ.<BR>
MARTIN W. KORMAN, ESQ.<BR>
BRET M. DIMARCO, ESQ.<BR>
WILSON SONSINI GOODRICH &#038; ROSATI<BR>
Professional Corporation<BR>
650 Page Mill Road<BR>
Palo Alto, CA 94304-1050<BR>
(650)&nbsp;493-9300</B></FONT>

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<P align="center"><FONT size="2">CALCULATION OF REGISTRATION FEE</FONT>

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<TABLE cellspacing="0" border="0" cellpadding="0" width="100%">
<TR valign="bottom">
        <TD width="6%">&nbsp;</TD>
        <TD width="42%">&nbsp;</TD>
        <TD width="8%">&nbsp;</TD>
        <TD width="2%">&nbsp;</TD>
        <TD width="1%">&nbsp;</TD>
        <TD width="2%">&nbsp;</TD>
        <TD width="8%">&nbsp;</TD>
        <TD width="2%">&nbsp;</TD>
        <TD width="1%">&nbsp;</TD>
        <TD width="2%">&nbsp;</TD>
        <TD width="8%">&nbsp;</TD>
        <TD width="2%">&nbsp;</TD>
        <TD width="1%">&nbsp;</TD>
        <TD width="2%">&nbsp;</TD>
        <TD width="8%">&nbsp;</TD>
        <TD width="2%">&nbsp;</TD>
        <TD width="1%">&nbsp;</TD>
        <TD width="2%">&nbsp;</TD>
</TR>

<TR valign="bottom">
        <TD colspan="18"><HR size="2" noshade></TD>
</TR>

<TR valign="bottom">
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD nowrap align="center" colspan="3"><FONT size="1"><B>Proposed Maximum</B></FONT></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD nowrap align="center" colspan="3"><FONT size="1"><B>Proposed Maximum</B></FONT></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD nowrap align="center" colspan="3"><FONT size="1"><B>Amount of</B></FONT></TD>
</TR>
<TR valign="bottom">
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD nowrap align="center" colspan="3"><FONT size="1"><B>Amount to be</B></FONT></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD nowrap align="center" colspan="3"><FONT size="1"><B>Offering Price</B></FONT></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD nowrap align="center" colspan="3"><FONT size="1"><B>Aggregate Offering</B></FONT></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD nowrap align="center" colspan="3"><FONT size="1"><B>Registration</B></FONT></TD>
</TR>
<TR valign="bottom">
        <TD nowrap align="center" colspan="2"><FONT size="1"><B>Title of Securities to be Registered</B></FONT></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD nowrap align="center" colspan="3"><FONT size="1"><B>Registered(1)</B></FONT></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD nowrap align="center" colspan="3"><FONT size="1"><B>Per Share</B></FONT></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD nowrap align="center" colspan="3"><FONT size="1"><B>Price</B></FONT></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD nowrap align="center" colspan="3"><FONT size="1"><B>Fee(4)</B></FONT></TD>
</TR>
<TR valign="bottom">
        <TD colspan="18"><HR size="1" noshade></TD>
</TR>
<TR valign="bottom">
        <TD colspan="2"><FONT size="2">Common Stock, $.001 par value, to be issued under the
Restated 1982 Stock Option Plan</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="right"><FONT size="2">5,691,826</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD nowrap align="right"><FONT size="2">$</FONT></TD>
        <TD align="right"><FONT size="2">27.07 </FONT></TD>
        <TD nowrap><FONT size="2">(2)</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="right"><FONT size="2">$</FONT></TD>
        <TD align="right"><FONT size="2">154,077,729.82</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="right"><FONT size="2">$</FONT></TD>
        <TD align="right"><FONT size="2">14,175.15</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
</TR>

<TR valign="bottom">
        <TD colspan="2"><FONT size="2">Common Stock, $.001 par value, to be issued under the
Amended and Restated 1997 Employee Stock Purchase Plan</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="right"><FONT size="2">400,000</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD nowrap align="right"><FONT size="2">$</FONT></TD>
        <TD align="right"><FONT size="2">23.01 </FONT></TD>
        <TD nowrap><FONT size="2">(3)</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="right"><FONT size="2">$</FONT></TD>
        <TD align="right"><FONT size="2">9,203,800.00</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="right"><FONT size="2">$</FONT></TD>
        <TD align="right"><FONT size="2">846.75</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
</TR>

<TR valign="bottom">
        <TD colspan="2"><FONT size="2">Common Stock, $.001 par value, to be issued under the
Amended and Restated 2000 Non-Statutory Option Plan</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="right"><FONT size="2">7,589,102</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD nowrap align="right"><FONT size="2">$</FONT></TD>
        <TD align="right"><FONT size="2">27.07 </FONT></TD>
        <TD nowrap><FONT size="2">(2)</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="right"><FONT size="2">$</FONT></TD>
        <TD align="right"><FONT size="2">205,436,991.14</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="right"><FONT size="2">$</FONT></TD>
        <TD align="right"><FONT size="2">18,900.20</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
</TR>

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        <TD colspan="18"><HR size="1" noshade></TD>
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<TR valign="bottom">
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">Total:</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="right"><FONT size="2">13,680,928</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="right"><FONT size="2">$</FONT></TD>
        <TD align="right"><FONT size="2">368,718,520.96</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="right"><FONT size="2">$</FONT></TD>
        <TD align="right"><FONT size="2">33,922.10</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
</TR>
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        <TD colspan="18"><HR size="2" noshade></TD>
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<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">
<TR valign="top">
      <TD width="1%" align="left" nowrap><FONT size="2">(1)</FONT></TD>
        <TD width="3%"><FONT size="2">&nbsp;</FONT></TD>
        <TD width="96%"><FONT size="2">Amount of securities to be registered computed in accordance with Rule&nbsp;457(h) of the Securities Act of 1933, as amended, (the &#147;<B>Securities Act</B>&#148;) as the maximum
number of the Registrant&#146;s Common Stock issuable under the plans covered by this Registration Statement. Pursuant to Rule&nbsp;416(a) of the Securities Act, this
Registration Statement shall also cover any additional shares of the Registrant&#146;s Common Stock that become issuable under the plans covered by this Registration
Statement by reason of any stock split, stock dividend, recapitalization or other similar transaction effected without the Registrant&#146;s receipt of consideration that
results in an increase in the number of the Registrant&#146;s outstanding shares of Common Stock.</FONT></TD>
</TR>
<TR><TD><TR><TD><TR><TD><TR><TD>
<TR valign="top">
      <TD width="1%" align="left" nowrap><FONT size="2">(2)</FONT></TD>
        <TD width="3%"><FONT size="2">&nbsp;</FONT></TD>
        <TD width="96%"><FONT size="2">Estimated in accordance with Rule&nbsp;457(c) of the Securities Act solely for the purpose of calculating the registration fee based on the average of the high and low
prices per share of the Common Stock as reported on The Nasdaq National Market on September&nbsp;23, 2002.</FONT></TD>
</TR>
<TR><TD><TR><TD><TR><TD><TR><TD>
<TR valign="top">
      <TD width="1%" align="left" nowrap><FONT size="2">(3)</FONT></TD>
        <TD width="3%"><FONT size="2">&nbsp;</FONT></TD>
        <TD width="96%"><FONT size="2">Estimated in accordance with Rule&nbsp;457(c) of the Securities Act solely for the purpose of calculating the registration fee based on 85% of the average of the high
and low prices per share of the Common Stock as reported on The Nasdaq National Market on September&nbsp;23, 2002.</FONT></TD>
</TR>
<TR><TD><TR><TD><TR><TD><TR><TD>
<TR valign="top">
      <TD width="1%" align="left" nowrap><FONT size="2">(4)</FONT></TD>
        <TD width="3%"><FONT size="2">&nbsp;</FONT></TD>
        <TD width="96%"><FONT size="2">Amount of registration fee was calculated pursuant to Section&nbsp;6(b) of the Securities Act, which provides that the fee shall be $92 per $1,000,000 of the proposed
maximum aggregate offering price of the securities proposed to be registered.</FONT></TD>
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<P align="center"><FONT size="2">&nbsp;
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<A name="toc"><DIV align="CENTER" style="page-break-before:always"><U><B>TABLE OF CONTENTS</B></U></DIV></A>

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<TR><TD colspan="9"><A HREF="#000">PART II</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#001">Item&nbsp;3.&nbsp;&nbsp;Incorporation of Documents by Reference.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#002">Item&nbsp;4.&nbsp;&nbsp;Description of Securities.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#003">Item&nbsp;5.&nbsp;&nbsp;Interests of Named Experts and Counsel.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#004">Item&nbsp;6.&nbsp;&nbsp;Indemnification of Directors and Officers.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#005">Item&nbsp;7.&nbsp;&nbsp;Exemption from Registration Claimed</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#006">Item&nbsp;8.&nbsp;&nbsp;Exhibits</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#007">Item&nbsp;9.&nbsp;&nbsp;Undertakings</A></TD></TR>
<TR><TD colspan="9"><A HREF="#008">SIGNATURES</A></TD></TR>
<TR><TD colspan="9"><A HREF="#009">INDEX TO EXHIBITS</A></TD></TR>
<TR><TD colspan="9"><A HREF="f84653exv5w1.txt">EXHIBIT 5.1</A></TD></TR>
<TR><TD colspan="9"><A HREF="f84653exv10w3.txt">EXHIBIT 10.3</A></TD></TR>
<TR><TD colspan="9"><A HREF="f84653exv23w1.txt">EXHIBIT 23.1</A></TD></TR>
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<P align="center"><FONT size="2"><B>PART&nbsp;&nbsp;II</B></FONT>

<P align="center"><FONT size="2"><B>INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</B></FONT>

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<DIV align="left"><A NAME="001"></A></DIV>
<P align="left"><FONT size="2"><B>Item&nbsp;3.&nbsp;&nbsp;Incorporation of Documents by Reference.</B></FONT>

<P><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;KLA-Tencor Corporation (the &#147;<B>Registrant</B>&#148; or the &#147;<B>Company</B>&#148;) hereby
incorporates by reference in this Registration Statement the following
documents:
</FONT>

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<TR valign="top">
   <TD width="1%" nowrap><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT></TD>
   <TD width="1%" align="right" nowrap><FONT size="2">(a)</FONT></TD>
   <TD width="1%" nowrap><FONT size="2">&nbsp;&nbsp;</FONT></TD>
   <TD width="97%"><FONT size="2">Registrant&#146;s Annual Report on Form&nbsp;10-K for the fiscal year
ended June&nbsp;30, 2002 (File No.&nbsp;000-09992) pursuant to Section&nbsp;13(a) of
the Securities Exchange Act of 1934, as amended (the <B>&#147;Exchange Act</B>&#148;);</FONT></TD>
</TR>
<TR>
        <TD><FONT size="2">&nbsp;</FONT></TD>
</TR>
<TR valign="top">
   <TD width="1%" nowrap><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT></TD>
   <TD width="1%" align="right" nowrap><FONT size="2">(b)</FONT></TD>
   <TD width="1%" nowrap><FONT size="2">&nbsp;&nbsp;</FONT></TD>
   <TD width="97%"><FONT size="2">All other reports filed by the Registrant pursuant to Section
13(a) or 15(d) of the Exchange Act since the end of the fiscal year
covered by the Annual Report referred to in (a)&nbsp;above;</FONT></TD>
</TR>
<TR>
        <TD><FONT size="2">&nbsp;</FONT></TD>
</TR>
<TR valign="top">
   <TD width="1%" nowrap><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT></TD>
   <TD width="1%" align="right" nowrap><FONT size="2">(c)</FONT></TD>
   <TD width="1%" nowrap><FONT size="2">&nbsp;&nbsp;</FONT></TD>
   <TD width="97%"><FONT size="2">The description of the Registrant&#146;s Common Stock as set forth
in the Registration Statement filed by the Registrant on Form&nbsp;8-A on
March&nbsp;29, 1989 (File No.&nbsp;000-09992) pursuant to Section&nbsp;12(g) of the
Exchange Act and any amendments or reports thereto filed with the
Securities and Exchange Commission for the purpose of updating such
description including Amendment No.&nbsp;1 to Form&nbsp;8-A filed September&nbsp;25,
1995 and Amendment No.&nbsp;2 to Form&nbsp;8-A filed September&nbsp;24, 1996; and</FONT></TD>
</TR>
<TR>
        <TD><FONT size="2">&nbsp;</FONT></TD>
</TR>
<TR valign="top">
   <TD width="1%" nowrap><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT></TD>
   <TD width="1%" align="right" nowrap><FONT size="2">(d)</FONT></TD>
   <TD width="1%" nowrap><FONT size="2">&nbsp;&nbsp;</FONT></TD>
   <TD width="97%"><FONT size="2">All other descriptions of the Registrant&#146;s Common Stock
contained in a registration statement filed under the Exchange Act,
including any amendment or report filed for the purpose of updating
such description.</FONT></TD>
</TR>
</TABLE>

<P><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All documents subsequently filed by the Registrant pursuant to Sections
13(a), 13(c), 14 and 15(d) of the Exchange Act, prior to the filing of a
post-effective amendment to this Registration Statement which indicates that
all securities offered hereby have been sold or which deregisters all
securities remaining unsold, shall be deemed to be incorporated by reference in
this Registration Statement and to be a part hereof from the date of filing of
such documents.
</FONT>

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<DIV align="left"><A NAME="002"></A></DIV>
<P align="left"><FONT size="2"><B>Item&nbsp;4.&nbsp;&nbsp;Description of Securities.</B></FONT>

<P><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</FONT>

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<DIV align="left"><A NAME="003"></A></DIV>
<P align="left"><FONT size="2"><B>Item&nbsp;5.&nbsp;&nbsp;Interests of Named Experts and Counsel.</B></FONT>

<P><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</FONT>

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<DIV align="left"><A NAME="004"></A></DIV>
<P align="left"><FONT size="2"><B>Item&nbsp;6.&nbsp;&nbsp;Indemnification of Directors and Officers.</B></FONT>

<P><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section&nbsp;145(a) of the Delaware General Corporation Law (the <B>&#147;DGCL</B>&#148;)
provides in relevant part that &#147;&#091;a&#093; corporation shall have power to indemnify
any person who was or is a party or is threatened to be made a party to any
threatened, pending or completed action, suit or proceeding, whether civil,
criminal, administrative or investigative (other than an action by or in the
right of the corporation) by reason of the fact that the person is or was a
director, officer, employee or agent of the corporation, or is or was serving
at the request of the corporation as a director, officer, employee or agent of
another corporation, partnership, joint
</FONT>

<P align="center"><FONT size="2">II-1
</FONT>

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<P><FONT size="2">venture, trust or other enterprise, against expenses (including attorneys&#146;
fees), judgments, fines and amounts paid in settlement actually and reasonably
incurred by the person in connection with such action, suit or proceeding if
the person acted in good faith and in a manner the person reasonably believed
to be in or not opposed to the best interests of the corporation, and, with
respect to any criminal action or proceeding, had no reasonable cause to
believe the person&#146;s conduct was unlawful.&#148; With respect to derivative
actions, Section&nbsp;145(b) of the DGCL provides in relevant part that &#147;&#091;a&#093;
corporation shall have power to indemnify any person who was or is a party or
is threatened to be made a party to any threatened, pending or completed action
or suit by or in the right of the corporation to procure a judgment in its
favor by reason of the fact that the person is or was a director, officer,
employee or agent of the corporation, or is or was serving at the request of
the corporation as a director, officer, employee or agent of another
corporation, partnership, joint venture, trust or other enterprise, against
expenses (including attorneys&#146; fees) actually and reasonably incurred by the
person in connection with the defense or settlement of such action or suit if
the person acted in good faith and in a manner reasonably believed to be in or
not opposed to the best interests of the corporation and except that no
indemnification shall be made in respect of any claim, issue or matter as to
which such person shall have been adjudged to be liable to the corporation
unless and only to the extent that the Court of Chancery or the court in which
such action or suit was brought shall determine upon application that, despite
the adjudication of liability but in view of all the circumstances of the case,
such person is fairly and reasonably entitled to indemnity for such expenses
which the Court of Chancery or such other court shall deem proper.&#148;
</FONT>

<P><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant&#146;s Amended and Restated Certificate of Incorporation
provides that to the fullest extent permitted by the DGCL, no director of the
Registrant shall be personally liable to the Registrant or its stockholders for
monetary damages for breach of fiduciary duty as a director. The Amended and
Restated Certificate of Incorporation also provides that no amendment or repeal
of such provision shall apply to or have any effect on the right to
indemnification permitted thereunder with respect to claims arising from acts
or omissions occurring in whole or in part before the effective date of such
amendment or repeal whether asserted before or after such amendment or repeal.
</FONT>

<P><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant&#146;s Bylaws provide that the Registrant shall indemnify to the
fullest extent permitted by the DGCL each of its directors, officers, employees
and other agents against expenses actually and reasonably incurred in
connection with any proceeding arising by reason of the fact that such person
is or was an agent of the Registrant.
</FONT>

<P><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant has entered into indemnification agreements with its
directors and executive officers and intends to enter into indemnification
agreements with any new directors and executive officers in the future.
</FONT>

<!-- link2 "Item&nbsp;7.&nbsp;&nbsp;Exemption from Registration Claimed" -->
<DIV align="left"><A NAME="005"></A></DIV>
<P align="left"><FONT size="2"><B>Item&nbsp;7.&nbsp;&nbsp;Exemption from Registration Claimed</B></FONT>

<P><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</FONT>

<!-- link2 "Item&nbsp;8.&nbsp;&nbsp;Exhibits" -->
<DIV align="left"><A NAME="006"></A></DIV>
<P align="left"><FONT size="2"><B>Item&nbsp;8.&nbsp;&nbsp;Exhibits</B></FONT>

<P><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;See Exhibit&nbsp;Index.
</FONT>

<!-- link2 "Item&nbsp;9.&nbsp;&nbsp;Undertakings" -->
<DIV align="left"><A NAME="007"></A></DIV>
<P align="left"><FONT size="2"><B>Item&nbsp;9.&nbsp;&nbsp;Undertakings</B></FONT>

<P><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp; The undersigned registrant hereby undertakes:
</FONT>

<P align="center"><FONT size="2">II-2
</FONT>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<P align="left"><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;To file, during any period in which offers or sales are being made, a
post-effective amendment to this Registration Statement:
</FONT>

<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">
<TR valign="top">
   <TD width="8%" nowrap><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT></TD>
   <TD width="1%" align="left" nowrap><FONT size="2">(i)</FONT></TD>
   <TD width="1%" nowrap><FONT size="2">&nbsp;&nbsp;</FONT></TD>
   <TD width="90%"><FONT size="2">To include any prospectus required by
Section&nbsp;10(a)(3) of the Securities Act of 1933;</FONT></TD>
</TR>
<TR>
        <TD><FONT size="2">&nbsp;</FONT></TD>
</TR>
<TR valign="top">
   <TD nowrap><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT></TD>
   <TD align="left" nowrap><FONT size="2">(ii)</FONT></TD>
   <TD nowrap><FONT size="2">&nbsp;&nbsp;</FONT></TD>
   <TD><FONT size="2">To reflect in the prospectus any facts
or events arising after the effective date of the
Registration Statement (or the most recent post-effective
amendment thereof) which, individually or in the
aggregate, represent a fundamental change in the
information set forth in the Registration Statement; and</FONT></TD>
</TR>
<TR>
        <TD><FONT size="2">&nbsp;</FONT></TD>
</TR>
<TR valign="top">
   <TD nowrap><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT></TD>
   <TD align="left" nowrap><FONT size="2">(iii)</FONT></TD>
   <TD nowrap><FONT size="2">&nbsp;&nbsp;</FONT></TD>
   <TD><FONT size="2">To include any material information
with respect to the plan of distribution not previously
disclosed in the Registration Statement or any material
change to such information in the Registration Statement.</FONT></TD>
</TR>
</TABLE>

<P><FONT size="2">Provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the
information required to be included in a post-effective amendment by those
paragraphs is contained in periodic reports filed by the Registrant pursuant to
Section&nbsp;13 or Section&nbsp;15(d) of the Securities Exchange Act 1934 that are
incorporated by reference in the Registration Statement.
</FONT>

<P align="left"><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;That, for the purpose of determining any liability under the
Securities Act of 1933, each such post-effective amendment shall be deemed to
be a new registration statement relating to the securities offered therein, and
the offering of such securities at that time shall be deemed to be the initial
bona fide offering thereof.
</FONT>

<P align="left"><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;To remove from registration by means of a post-effective amendment any
of the securities being registered which remain unsold at the termination of
the offering.
</FONT>

<P><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp; The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
registrant&#146;s annual report pursuant to Section&nbsp;13(a) or Section&nbsp;15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan&#146;s annual report pursuant to Section&nbsp;15(d) of the
Securities Exchange Act of 1934) that is incorporated by reference in the
Registration Statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.
</FONT>

<P><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp; Insofar as indemnification for liabilities arising under the
Securities Act of 1933 may be permitted to directors, officers and controlling
persons of the registrant pursuant to the foregoing provisions, or otherwise,
the registrant has been advised that in the opinion of the Securities and
Exchange Commission such indemnification is against public policy as expressed
in the Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
registrant of expenses incurred or paid by a director, officer or controlling
person of the registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the registrant will, unless in
the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether
such indemnification by it is against public policy as expressed in the Act and
will be governed by the final adjudication of such issue.
</FONT>

<P align="center"><FONT size="2">II-3
</FONT>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
<!-- link1 "SIGNATURES" -->
<DIV align="left"><A NAME="008"></A></DIV>
<P align="center"><FONT size="2"><B>SIGNATURES</B></FONT>

<P><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, as amended,
the Registrant certifies that it has reasonable grounds to believe that it
meets all of the requirements for filing on Form&nbsp;S-8 and has duly caused this
Registration Statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of San Jose, State of California, on September&nbsp;23,
2002.
</FONT>

<CENTER>
<TABLE cellspacing="0" border="0" cellpadding="0" width="100%">
<TR valign="bottom">
        <TD width="25%">&nbsp;</TD>
        <TD width="25%">&nbsp;</TD>
        <TD width="1%">&nbsp;</TD>
        <TD width="2%">&nbsp;</TD>
        <TD width="47%">&nbsp;</TD>
</TR>
<TR valign="bottom">
        <TD valign="top"><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD colspan="3" align="left" valign="top"><FONT size="2"><B>KLA-TENCOR CORPORATION</B></FONT></TD>
</TR>

<TR valign="bottom">
        <TD valign="top"><FONT size="2"><BR></FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="left" valign="top"></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="left" valign="top"></TD>
</TR>

<TR valign="bottom">
        <TD valign="top"><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="left" valign="top"><FONT size="2">
By:
</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="left" valign="top"><FONT size="2">/s/&nbsp;&nbsp;&nbsp;Stuart J. Nichols
<hr noshade size="1">
Stuart J. Nichols, Vice President,<br>
General Counsel</FONT></TD>
</TR>
</TABLE>
</CENTER>

<P align="center"><FONT size="2">II-4
</FONT>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<P align="center"><FONT size="2"><B>POWER OF ATTORNEY</B></FONT>

<P><FONT size="2">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature
appears below constitutes and appoints Stuart J. Nichols, their true and lawful
attorney and agent, with full power of substitution, with the power to act
alone, to sign and execute on behalf of the undersigned any amendment or
amendments to this Registration Statement on Form&nbsp;S-8 and to perform any acts
necessary in order to file such amendments, and each of the undersigned does
hereby ratify and confirm all that said attorney and agent, or his substitute,
shall do or cause to be done by virtue hereof. Pursuant to the requirements of
the Securities Act of 1933, as amended, this Registration Statement has been
signed by the following persons in the capacities and on the dates indicated.
</FONT>

<CENTER>
<TABLE cellspacing="0" border="0" cellpadding="0" width="100%">
<TR valign="bottom">
        <TD width="36%">&nbsp;</TD>
        <TD width="5%">&nbsp;</TD>
        <TD width="36%">&nbsp;</TD>
        <TD width="5%">&nbsp;</TD>
        <TD width="18%">&nbsp;</TD>
</TR>
<TR valign="bottom">
        <TD nowrap align="center"><FONT size="1"><B>Signature</B></FONT></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD nowrap align="center"><FONT size="1"><B>Title</B></FONT></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD nowrap align="center"><FONT size="1"><B>Date</B></FONT></TD>
</TR>
<TR valign="bottom">
        <TD nowrap align="center"><HR size="1" noshade></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD nowrap align="center"><HR size="1" noshade></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD nowrap align="center"><HR size="1" noshade></TD>
</TR>

<TR><TD>&nbsp;</TD></TR>

<TR valign="bottom">
        <TD valign="top"><FONT size="2">/s/&nbsp;&nbsp;&nbsp;Kenneth Levy
<hr noshade size="1">
Kenneth Levy</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="left" valign="top"><FONT size="2">
Chairman of the Board and Director
</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="center" valign="top"><FONT size="2">September 23, 2002</FONT></TD>
</TR>
<TR><TD><FONT size="2">&nbsp;</FONT></TD></TR>
<TR valign="bottom">
        <TD valign="top"><FONT size="2">/s/&nbsp;&nbsp;&nbsp;Kenneth L. Schroeder
<hr noshade size="1">
Kenneth L. Schroeder</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="left" valign="top"><FONT size="2">
Chief Executive Officer and Director
<br>(Principal Executive Officer)
</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="center" valign="top"><FONT size="2">September 23, 2002</FONT></TD>
</TR>
<TR><TD><FONT size="2">&nbsp;</FONT></TD></TR>
<TR valign="bottom">
        <TD valign="top"><FONT size="2">/s/&nbsp;&nbsp;&nbsp;John H. Kispert
<hr noshade size="1">
John H. Kispert</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="left" valign="top"><FONT size="2">
Chief Financial Officer<BR>
(Principal Financial and Accounting Officer)
</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="center" valign="top"><FONT size="2">September 23, 2002</FONT></TD>
</TR>
<TR><TD><FONT size="2">&nbsp;</FONT></TD></TR>
<TR valign="bottom">
        <TD valign="top"><FONT size="2">/s/&nbsp;&nbsp;&nbsp;Edward
W. Barnholt
<hr noshade size="1">
Edward W. Barnholt</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="left" valign="top"><FONT size="2">
Director
</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="center" valign="top"><FONT size="2">September 23, 2002</FONT></TD>
</TR>
<TR><TD><FONT size="2">&nbsp;</FONT></TD></TR>
<TR valign="bottom">
        <TD valign="top"><FONT size="2">/s/&nbsp;&nbsp;&nbsp;H. Raymond Bingham
<hr noshade size="1">
H. Raymond Bingham</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="left" valign="top"><FONT size="2">Director</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="center" valign="top"><FONT size="2">September 23, 2002</FONT></TD>
</TR>
<TR><TD><FONT size="2">&nbsp;</FONT></TD></TR>
<TR valign="bottom">
        <TD valign="top"><FONT size="2">/s/&nbsp;&nbsp;&nbsp;Robert T. Bond
<hr noshade size="1">
Robert T. Bond</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="left" valign="top"><FONT size="2">Director</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="center" valign="top"><FONT size="2">September 23, 2002</FONT></TD>
</TR>
<TR><TD><FONT size="2">&nbsp;</FONT></TD></TR>
<TR valign="bottom">
        <TD valign="top"><FONT size="2">/s/&nbsp;&nbsp;&nbsp;Richard J. Elkus, Jr.
<hr noshade size="1">
Richard J. Elkus, Jr.</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="left" valign="top"><FONT size="2">Director</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="center" valign="top"><FONT size="2">September 23, 2002</FONT></TD>
</TR>
<TR><TD><FONT size="2">&nbsp;</FONT></TD></TR>
<TR valign="bottom">
        <TD valign="top"><FONT size="2">/s/&nbsp;&nbsp;&nbsp;Jon D. Tompkins
<hr noshade size="1">
Jon D. Tompkins</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="left" valign="top"><FONT size="2">Director</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="center" valign="top"><FONT size="2">September 23, 2002</FONT></TD>
</TR>
<TR><TD><FONT size="2">&nbsp;</FONT></TD></TR>
<TR valign="bottom">
        <TD valign="top"><FONT size="2">/s/&nbsp;&nbsp;&nbsp;Lida Urbanek
<hr noshade size="1">
Lida Urbanek</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="left" valign="top"><FONT size="2">Director</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD align="center" valign="top"><FONT size="2">September 23, 2002</FONT></TD>
</TR>
</TABLE>
</CENTER>

<P align="center"><FONT size="2">II-5
</FONT>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<P align="center"><FONT size="2"><B>KLA-TENCOR CORPORATION</B></FONT>

<P align="center"><FONT size="2"><B>REGISTRATION STATEMENT ON FORM S-8</B></FONT>

<!-- link1 "INDEX TO EXHIBITS" -->
<DIV align="left"><A NAME="009"></A></DIV>
<P align="center"><FONT size="2"><B>INDEX TO EXHIBITS</B></FONT>

<CENTER>
<TABLE cellspacing="0" border="0" cellpadding="0" width="100%">
<TR valign="bottom">
        <TD width="2%">&nbsp;</TD>
        <TD width="1%">&nbsp;</TD>
        <TD width="2%">&nbsp;</TD>
        <TD width="5%">&nbsp;</TD>
        <TD width="90%">&nbsp;</TD>
</TR>
<TR valign="bottom">
        <TD nowrap align="center" colspan="3"><FONT size="1"><B>Exhibit</B></FONT></TD>
</TR>
<TR valign="bottom">
        <TD nowrap align="center" colspan="3"><FONT size="1"><B>Number</B></FONT></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD nowrap align="center"><FONT size="1"><B>Description</B></FONT></TD>
</TR>
<TR valign="bottom">
        <TD colspan="3"><HR size="1" noshade></TD>
        <TD><FONT size="1">&nbsp;</FONT></TD>
        <TD nowrap align="center"><HR size="1" noshade></TD>
</TR>
<TR valign="bottom">
        <TD nowrap valign="top" align="right"><FONT size="2">&nbsp;</FONT></TD>
        <TD valign="top" align="right"><FONT size="2">4.1</FONT></TD>
        <TD valign="top" nowrap><FONT size="2">(1)</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">Amended and Restated Certificate of Incorporation, as amended</FONT></TD>
</TR>

<TR><TD><TR><TD><TR><TD><TR><TD>

<TR valign="bottom">
        <TD nowrap valign="top" align="right"><FONT size="2">&nbsp;</FONT></TD>
        <TD valign="top" align="right"><FONT size="2">4.2</FONT></TD>
        <TD valign="top" nowrap><FONT size="2">(2)</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">Certificate of Amendment of Amended and Restated Certificate of Incorporation</FONT></TD>
</TR>

<TR><TD><TR><TD><TR><TD><TR><TD>

<TR valign="bottom">
        <TD nowrap valign="top" align="right"><FONT size="2">&nbsp;</FONT></TD>
        <TD valign="top" align="right"><FONT size="2">4.3</FONT></TD>
        <TD valign="top" nowrap><FONT size="2">(3)</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">Bylaws of the Registrant, as amended</FONT></TD>
</TR>
<TR><TD><TR><TD><TR><TD><TR><TD>

<TR valign="bottom">
        <TD nowrap valign="top" align="right"><FONT size="2">&nbsp;</FONT></TD>
        <TD valign="top" align="right"><FONT size="2">4.4</FONT></TD>
        <TD valign="top" nowrap><FONT size="2">(4)</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">Amended and Restated Rights Agreement dated as of April&nbsp;25, 1996, between the
Registrant and First National Bank of Boston, as Rights Agent. This
agreement includes the Form of Right Certificate as Exhibit&nbsp;A and the Summary
of Terms of Rights as Exhibit&nbsp;B thereto</FONT></TD>
</TR>
<TR><TD><TR><TD><TR><TD><TR><TD>

<TR valign="bottom">
        <TD valign="top" align="right"><FONT size="2">&nbsp;</FONT></TD>
        <TD valign="top" align="right"><FONT size="2">5.1</FONT></TD>
        <TD valign="top"><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">Opinion re legality</FONT></TD>
</TR>

<TR><TD><TR><TD><TR><TD><TR><TD>
<TR valign="bottom">
        <TD nowrap valign="top" align="right"><FONT size="2">&nbsp;</FONT></TD>
        <TD valign="top" align="right"><FONT size="2">10.1</FONT></TD>
        <TD valign="top" nowrap><FONT size="2">(5)</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">Amended and Restated 1997 Employee Stock Purchase Plan</FONT></TD>
</TR>

<TR><TD><TR><TD><TR><TD><TR><TD>
<TR valign="bottom">
        <TD nowrap valign="top" align="right"><FONT size="2">&nbsp;</FONT></TD>
        <TD valign="top" align="right"><FONT size="2">10.2</FONT></TD>
        <TD valign="top" nowrap><FONT size="2">(6)</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">Restated 1982 Stock Option Plan</FONT></TD>
</TR>

<TR><TD><TR><TD><TR><TD><TR><TD>
<TR valign="bottom">
        <TD valign="top" align="right"><FONT size="2">&nbsp;</FONT></TD>
        <TD valign="top" align="right"><FONT size="2">10.3</FONT></TD>
        <TD valign="top"><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">Amended and Restated 2000 Nonstatutory Stock Option Plan</FONT></TD>
</TR>

<TR><TD><TR><TD><TR><TD><TR><TD>
<TR valign="bottom">
        <TD valign="top" align="right"><FONT size="2">&nbsp;</FONT></TD>
        <TD valign="top" align="right"><FONT size="2">23.1</FONT></TD>
        <TD valign="top"><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">Consent of Independent Accountants</FONT></TD>
</TR>

<TR><TD><TR><TD><TR><TD><TR><TD>
<TR valign="bottom">
        <TD valign="top" align="right"><FONT size="2">&nbsp;</FONT></TD>
        <TD valign="top" align="right"><FONT size="2">23.2</FONT></TD>
        <TD valign="top"><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">Consent of Counsel (included in Exhibit&nbsp;5.1)</FONT></TD>
</TR>

<TR><TD><TR><TD><TR><TD><TR><TD>
<TR valign="bottom">
        <TD valign="top" align="right"><FONT size="2">&nbsp;</FONT></TD>
        <TD valign="top" align="right"><FONT size="2">24.1</FONT></TD>
        <TD valign="top"><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">&nbsp;</FONT></TD>
        <TD><FONT size="2">Power of Attorney (see Page II-5)</FONT></TD>
</TR>
</TABLE>
</CENTER>

<P>
<HR size="1" width="18%" align="left" noshade>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0">
<TR valign="top">
      <TD width="1%" align="left" nowrap><FONT size="2">(1)</FONT></TD>
        <TD width="3%"><FONT size="2">&nbsp;</FONT></TD>
        <TD width="96%"><FONT size="2">Incorporated by reference to Exhibit&nbsp;3.1 to the Registrant&#146;s Quarterly
Report on Form&nbsp;10-Q for the quarter ended March&nbsp;31, 1997 (Commission File
No.&nbsp;000-09992).</FONT></TD>
</TR>
<TR><TD><TR><TD><TR><TD><TR><TD>
<TR valign="top">
      <TD width="1%" align="left" nowrap><FONT size="2">(2)</FONT></TD>
        <TD width="3%"><FONT size="2">&nbsp;</FONT></TD>
        <TD width="96%"><FONT size="2">Incorporated by reference to Exhibit&nbsp;3.1 to the Registrant&#146;s Quarterly
Report on Form&nbsp;10-Q, for the quarter ended December&nbsp;31, 2000 (Commission
File No.&nbsp;000-09992).</FONT></TD>
</TR>
<TR><TD><TR><TD><TR><TD><TR><TD>
<TR valign="top">
      <TD width="1%" align="left" nowrap><FONT size="2">(3)</FONT></TD>
        <TD width="3%"><FONT size="2">&nbsp;</FONT></TD>
        <TD width="96%"><FONT size="2">Incorporated by reference to Exhibit&nbsp;3.2 to the Registrant&#146;s Registration
Statement on Form&nbsp;S-8, filed December&nbsp;4, 1998 (Commission File No.
333-68415).</FONT></TD>
</TR>
<TR><TD><TR><TD><TR><TD><TR><TD>
<TR valign="top">
      <TD width="1%" align="left" nowrap><FONT size="2">(4)</FONT></TD>
        <TD width="3%"><FONT size="2">&nbsp;</FONT></TD>
        <TD width="96%"><FONT size="2">Incorporated by reference to Exhibit&nbsp;1 of the Registrant&#146;s report on Form
8-A12G/A Amendment No.&nbsp;2 to the Registration Statement on Form&nbsp;8-A (filed
September&nbsp;24, 1996, Commission File No.&nbsp;000-09992).</FONT></TD>
</TR>
<TR><TD><TR><TD><TR><TD><TR><TD>
<TR valign="top">
      <TD width="1%" align="left" nowrap><FONT size="2">(5)</FONT></TD>
        <TD width="3%"><FONT size="2">&nbsp;</FONT></TD>
        <TD width="96%"><FONT size="2">Incorporated by reference to Exhibit&nbsp;10.1 to the Registrant&#146;s
Registration Statement on Form&nbsp;S-8, filed December&nbsp;26, 2001 (Commission
File No.&nbsp;333-75944).</FONT></TD>
</TR>
<TR><TD><TR><TD><TR><TD><TR><TD>
<TR valign="top">
      <TD width="1%" align="left" nowrap><FONT size="2">(6)</FONT></TD>
        <TD width="3%"><FONT size="2">&nbsp;</FONT></TD>
        <TD width="96%"><FONT size="2">Incorporated by reference to Exhibit&nbsp;10.74 to the Registrant&#146;s
Registration Statement on Form&nbsp;S-8, filed March&nbsp;7, 1997. (Commission File
No.&nbsp;333-22941).</FONT></TD>
</TR>
</TABLE>

<P align="center"><FONT size="2">&nbsp;</FONT>

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{"company-data": {"conformed-name": "KLA TENCOR CORP", "cik": "0000319201", "assigned-sic": "3827", "irs-number": "042564110", "state-of-incorporation": "DE", "fiscal-year-end": "0630"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-100166", "film-number": "02775265"}, "business-address": {"street1": "160 RIO ROBLES", "city": "SAN JOSE", "state": "CA", "zip": "95134", "phone": "4084344200"}, "mail-address": {"street1": "160 RIO ROBLES", "city": "SAN JOSE", "state": "CA", "zip": "95161-9055"}, "former-company": {"former-conformed-name": "KLA INSTRUMENTS CORP", "date-changed": "19920703"}}
KLA-Tencor Corporation  Form S-8
Table of Contents
As filed with the Securities and Exchange Commission on September 27, 2002
Registration No.  333-
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT
Under
The Securities Act of 1933
KLA-TENCOR CORPORATION
(Exact name of registrant as specified in its charter)
DELAWARE
(State of incorporation)
04-2564110
(I.R.S. Employer Identification No.)
160 Rio Robles
San Jose, CA 95134
(Address, including zip code, of principal executive offices)
RESTATED 1982 STOCK OPTION PLAN
AMENDED AND RESTATED 1997 EMPLOYEE STOCK PURCHASE PLAN
AMENDED AND RESTATED 2000 NON-STATUTORY STOCK OPTION PLAN
(Full Titles of the Plans)
STUART J. NICHOLS
VICE PRESIDENT, GENERAL COUNSEL
KLA-TENCOR CORPORATION
160 Rio Robles
San Jose, CA 95134
(Name and address of agent for service)
(408) 875-4200
(Telephone number, including area code, of agent for service)
Copies to:
LARRY W. SONSINI, ESQ.
MARTIN W. KORMAN, ESQ.
BRET M. DIMARCO, ESQ.
WILSON SONSINI GOODRICH & ROSATI
Professional Corporation
650 Page Mill Road
Palo Alto, CA 94304-1050
(650) 493-9300
CALCULATION OF REGISTRATION FEE
Proposed Maximum
Proposed Maximum
Amount of
Amount to be
Offering Price
Aggregate Offering
Registration
Title of Securities to be Registered
Registered(1)
Per Share
Price
Fee(4)
Common Stock, $.001 par value, to be issued under the
Restated 1982 Stock Option Plan
5,691,826
$
27.07
(2)
$
154,077,729.82
$
14,175.15
Common Stock, $.001 par value, to be issued under the
Amended and Restated 1997 Employee Stock Purchase Plan
400,000
$
23.01
(3)
$
9,203,800.00
$
846.75
Common Stock, $.001 par value, to be issued under the
Amended and Restated 2000 Non-Statutory Option Plan
7,589,102
$
27.07
(2)
$
205,436,991.14
$
18,900.20
Total:
13,680,928
$
368,718,520.96
$
33,922.10
(1)
Amount of securities to be registered computed in accordance with Rule 457(h) of the Securities Act of 1933, as amended, (the "
Securities Act
") as the maximum
number of the Registrant's Common Stock issuable under the plans covered by this Registration Statement. Pursuant to Rule 416(a) of the Securities Act, this
Registration Statement shall also cover any additional shares of the Registrant's Common Stock that become issuable under the plans covered by this Registration
Statement by reason of any stock split, stock dividend, recapitalization or other similar transaction effected without the Registrant's receipt of consideration that
results in an increase in the number of the Registrant's outstanding shares of Common Stock.
(2)
Estimated in accordance with Rule 457(c) of the Securities Act solely for the purpose of calculating the registration fee based on the average of the high and low
prices per share of the Common Stock as reported on The Nasdaq National Market on September 23, 2002.
(3)
Estimated in accordance with Rule 457(c) of the Securities Act solely for the purpose of calculating the registration fee based on 85% of the average of the high
and low prices per share of the Common Stock as reported on The Nasdaq National Market on September 23, 2002.
(4)
Amount of registration fee was calculated pursuant to Section 6(b) of the Securities Act, which provides that the fee shall be $92 per $1,000,000 of the proposed
maximum aggregate offering price of the securities proposed to be registered.
TABLE OF CONTENTS
PART II
Item 3.  Incorporation of Documents by Reference.
Item 4.  Description of Securities.
Item 5.  Interests of Named Experts and Counsel.
Item 6.  Indemnification of Directors and Officers.
Item 7.  Exemption from Registration Claimed
Item 8.  Exhibits
Item 9.  Undertakings
SIGNATURES
INDEX TO EXHIBITS
EXHIBIT 5.1
EXHIBIT 10.3
EXHIBIT 23.1
Table of Contents
PART  II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 3.  Incorporation of Documents by Reference.
KLA-Tencor Corporation (the "
Registrant
" or the "
Company
") hereby
incorporates by reference in this Registration Statement the following
documents:
(a)
Registrant's Annual Report on Form 10-K for the fiscal year
ended June 30, 2002 (File No. 000-09992) pursuant to Section 13(a) of
the Securities Exchange Act of 1934, as amended (the
"Exchange Act
");
(b)
All other reports filed by the Registrant pursuant to Section
13(a) or 15(d) of the Exchange Act since the end of the fiscal year
covered by the Annual Report referred to in (a) above;
(c)
The description of the Registrant's Common Stock as set forth
in the Registration Statement filed by the Registrant on Form 8-A on
March 29, 1989 (File No. 000-09992) pursuant to Section 12(g) of the
Exchange Act and any amendments or reports thereto filed with the
Securities and Exchange Commission for the purpose of updating such
description including Amendment No. 1 to Form 8-A filed September 25,
1995 and Amendment No. 2 to Form 8-A filed September 24, 1996; and
(d)
All other descriptions of the Registrant's Common Stock
contained in a registration statement filed under the Exchange Act,
including any amendment or report filed for the purpose of updating
such description.
All documents subsequently filed by the Registrant pursuant to Sections
13(a), 13(c), 14 and 15(d) of the Exchange Act, prior to the filing of a
post-effective amendment to this Registration Statement which indicates that
all securities offered hereby have been sold or which deregisters all
securities remaining unsold, shall be deemed to be incorporated by reference in
this Registration Statement and to be a part hereof from the date of filing of
such documents.
Item 4.  Description of Securities.
Not applicable.
Item 5.  Interests of Named Experts and Counsel.
Not applicable.
Item 6.  Indemnification of Directors and Officers.
Section 145(a) of the Delaware General Corporation Law (the
"DGCL
")
provides in relevant part that "[a] corporation shall have power to indemnify
any person who was or is a party or is threatened to be made a party to any
threatened, pending or completed action, suit or proceeding, whether civil,
criminal, administrative or investigative (other than an action by or in the
right of the corporation) by reason of the fact that the person is or was a
director, officer, employee or agent of the corporation, or is or was serving
at the request of the corporation as a director, officer, employee or agent of
another corporation, partnership, joint
II-1
Table of Contents
venture, trust or other enterprise, against expenses (including attorneys'
fees), judgments, fines and amounts paid in settlement actually and reasonably
incurred by the person in connection with such action, suit or proceeding if
the person acted in good faith and in a manner the person reasonably believed
to be in or not opposed to the best interests of the corporation, and, with
respect to any criminal action or proceeding, had no reasonable cause to
believe the person's conduct was unlawful." With respect to derivative
actions, Section 145(b) of the DGCL provides in relevant part that "[a]
corporation shall have power to indemnify any person who was or is a party or
is threatened to be made a party to any threatened, pending or completed action
or suit by or in the right of the corporation to procure a judgment in its
favor by reason of the fact that the person is or was a director, officer,
employee or agent of the corporation, or is or was serving at the request of
the corporation as a director, officer, employee or agent of another
corporation, partnership, joint venture, trust or other enterprise, against
expenses (including attorneys' fees) actually and reasonably incurred by the
person in connection with the defense or settlement of such action or suit if
the person acted in good faith and in a manner reasonably believed to be in or
not opposed to the best interests of the corporation and except that no
indemnification shall be made in respect of any claim, issue or matter as to
which such person shall have been adjudged to be liable to the corporation
unless and only to the extent that the Court of Chancery or the court in which
such action or suit was brought shall determine upon application that, despite
the adjudication of liability but in view of all the circumstances of the case,
such person is fairly and reasonably entitled to indemnity for such expenses
which the Court of Chancery or such other court shall deem proper."
The Registrant's Amended and Restated Certificate of Incorporation
provides that to the fullest extent permitted by the DGCL, no director of the
Registrant shall be personally liable to the Registrant or its stockholders for
monetary damages for breach of fiduciary duty as a director. The Amended and
Restated Certificate of Incorporation also provides that no amendment or repeal
of such provision shall apply to or have any effect on the right to
indemnification permitted thereunder with respect to claims arising from acts
or omissions occurring in whole or in part before the effective date of such
amendment or repeal whether asserted before or after such amendment or repeal.
The Registrant's Bylaws provide that the Registrant shall indemnify to the
fullest extent permitted by the DGCL each of its directors, officers, employees
and other agents against expenses actually and reasonably incurred in
connection with any proceeding arising by reason of the fact that such person
is or was an agent of the Registrant.
The Registrant has entered into indemnification agreements with its
directors and executive officers and intends to enter into indemnification
agreements with any new directors and executive officers in the future.
Item 7.  Exemption from Registration Claimed
Not applicable.
Item 8.  Exhibits
See Exhibit Index.
Item 9.  Undertakings
(a)  The undersigned registrant hereby undertakes:
II-2
Table of Contents
(1) To file, during any period in which offers or sales are being made, a
post-effective amendment to this Registration Statement:
(i)
To include any prospectus required by
Section 10(a)(3) of the Securities Act of 1933;
(ii)
To reflect in the prospectus any facts
or events arising after the effective date of the
Registration Statement (or the most recent post-effective
amendment thereof) which, individually or in the
aggregate, represent a fundamental change in the
information set forth in the Registration Statement; and
(iii)
To include any material information
with respect to the plan of distribution not previously
disclosed in the Registration Statement or any material
change to such information in the Registration Statement.
Provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the
information required to be included in a post-effective amendment by those
paragraphs is contained in periodic reports filed by the Registrant pursuant to
Section 13 or Section 15(d) of the Securities Exchange Act 1934 that are
incorporated by reference in the Registration Statement.
(2) That, for the purpose of determining any liability under the
Securities Act of 1933, each such post-effective amendment shall be deemed to
be a new registration statement relating to the securities offered therein, and
the offering of such securities at that time shall be deemed to be the initial
bona fide offering thereof.
(3) To remove from registration by means of a post-effective amendment any
of the securities being registered which remain unsold at the termination of
the offering.
(b)  The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to Section 15(d) of the
Securities Exchange Act of 1934) that is incorporated by reference in the
Registration Statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.
(c)  Insofar as indemnification for liabilities arising under the
Securities Act of 1933 may be permitted to directors, officers and controlling
persons of the registrant pursuant to the foregoing provisions, or otherwise,
the registrant has been advised that in the opinion of the Securities and
Exchange Commission such indemnification is against public policy as expressed
in the Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
registrant of expenses incurred or paid by a director, officer or controlling
person of the registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the registrant will, unless in
the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether
such indemnification by it is against public policy as expressed in the Act and
will be governed by the final adjudication of such issue.
II-3
Table of Contents
SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, as amended,
the Registrant certifies that it has reasonable grounds to believe that it
meets all of the requirements for filing on Form S-8 and has duly caused this
Registration Statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of San Jose, State of California, on September 23,
2002.
KLA-TENCOR CORPORATION
By:
/s/   Stuart J. Nichols
Stuart J. Nichols, Vice President,
General Counsel
II-4
Table of Contents
POWER OF ATTORNEY
KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature
appears below constitutes and appoints Stuart J. Nichols, their true and lawful
attorney and agent, with full power of substitution, with the power to act
alone, to sign and execute on behalf of the undersigned any amendment or
amendments to this Registration Statement on Form S-8 and to perform any acts
necessary in order to file such amendments, and each of the undersigned does
hereby ratify and confirm all that said attorney and agent, or his substitute,
shall do or cause to be done by virtue hereof. Pursuant to the requirements of
the Securities Act of 1933, as amended, this Registration Statement has been
signed by the following persons in the capacities and on the dates indicated.
Signature
Title
Date
/s/   Kenneth Levy
Kenneth Levy
Chairman of the Board and Director
September 23, 2002
/s/   Kenneth L. Schroeder
Kenneth L. Schroeder
Chief Executive Officer and Director
(Principal Executive Officer)
September 23, 2002
/s/   John H. Kispert
John H. Kispert
Chief Financial Officer
(Principal Financial and Accounting Officer)
September 23, 2002
/s/   Edward
W. Barnholt
Edward W. Barnholt
Director
September 23, 2002
/s/   H. Raymond Bingham
H. Raymond Bingham
Director
September 23, 2002
/s/   Robert T. Bond
Robert T. Bond
Director
September 23, 2002
/s/   Richard J. Elkus, Jr.
Richard J. Elkus, Jr.
Director
September 23, 2002
/s/   Jon D. Tompkins
Jon D. Tompkins
Director
September 23, 2002
/s/   Lida Urbanek
Lida Urbanek
Director
September 23, 2002
II-5
Table of Contents
KLA-TENCOR CORPORATION
REGISTRATION STATEMENT ON FORM S-8
INDEX TO EXHIBITS
Exhibit
Number
Description
4.1
(1)
Amended and Restated Certificate of Incorporation, as amended
4.2
(2)
Certificate of Amendment of Amended and Restated Certificate of Incorporation
4.3
(3)
Bylaws of the Registrant, as amended
4.4
(4)
Amended and Restated Rights Agreement dated as of April 25, 1996, between the
Registrant and First National Bank of Boston, as Rights Agent. This
agreement includes the Form of Right Certificate as Exhibit A and the Summary
of Terms of Rights as Exhibit B thereto
5.1
Opinion re legality
10.1
(5)
Amended and Restated 1997 Employee Stock Purchase Plan
10.2
(6)
Restated 1982 Stock Option Plan
10.3
Amended and Restated 2000 Nonstatutory Stock Option Plan
23.1
Consent of Independent Accountants
23.2
Consent of Counsel (included in Exhibit 5.1)
24.1
Power of Attorney (see Page II-5)
(1)
Incorporated by reference to Exhibit 3.1 to the Registrant's Quarterly
Report on Form 10-Q for the quarter ended March 31, 1997 (Commission File
No. 000-09992).
(2)
Incorporated by reference to Exhibit 3.1 to the Registrant's Quarterly
Report on Form 10-Q, for the quarter ended December 31, 2000 (Commission
File No. 000-09992).
(3)
Incorporated by reference to Exhibit 3.2 to the Registrant's Registration
Statement on Form S-8, filed December 4, 1998 (Commission File No.
333-68415).
(4)
Incorporated by reference to Exhibit 1 of the Registrant's report on Form
8-A12G/A Amendment No. 2 to the Registration Statement on Form 8-A (filed
September 24, 1996, Commission File No. 000-09992).
(5)
Incorporated by reference to Exhibit 10.1 to the Registrant's
Registration Statement on Form S-8, filed December 26, 2001 (Commission
File No. 333-75944).
(6)
Incorporated by reference to Exhibit 10.74 to the Registrant's
Registration Statement on Form S-8, filed March 7, 1997. (Commission File
No. 333-22941).