<B><P>Exhibit 10.79</P>
<P ALIGN="CENTER">Lam Research Corporation</P>
<P ALIGN="CENTER"></P>
<P ALIGN="CENTER">Amendment to Stock Option Grant</P>
<P ALIGN="CENTER"></P>
</B><P ALIGN="JUSTIFY">	Effective October 16, 2002 (the "Effective Date") the parties
agree to amend Stock Option Grant No. 9700467, dated November 21, 1996, to James W. Bagley (the
"Original Grant"). The Stock Option incorporates the following amendments to the Original
Grant:</P>
<P ALIGN="JUSTIFY"></P>
<OL>

<OL>

<P ALIGN="JUSTIFY"><LI>Right to Exercise. All shares of the Original Grant shall become
unexercisable until vested under the following schedule. The right to exercise those shares shall
vest as follows:</LI></P></OL>
</OL>

<P ALIGN="JUSTIFY"></P>
<OL TYPE="a">
<DIR>
<DIR>

<OL TYPE="a">

<P ALIGN="JUSTIFY"><LI>The first one-sixteenth (1/16) of the shares (119,250 shares) shall vest and
become exercisable on January 17, 2003;</LI></P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY"><LI>An additional one-sixteenth of the shares (119,250 shares) shall vest and
become exercisable on April 17, 2003; </LI></P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY"><LI>An additional one-sixteenth of the shares (119,250 shares) shall vest and
become exercisable on July 17, 2003;</LI></P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY"><LI>An additional one-sixteenth of the shares (119,250 shares) shall vest and
become exercisable on October 17, 2003; and</LI></P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY"><LI>An additional one-sixteenth of the shares (119,250 shares) shall vest and
become exercisable each January 17, April 17, July 17 and October 17, during the years 2004 through
2006, until all shares are fully vested and exercisable;</LI></P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY"><LI>Provided that should the closing price of Lam's Common Stock ever reach
$20.00 per share all unvested shares shall immediately accelerate and become
exercisable.</LI></P></OL>
</DIR>
</DIR>
</OL>

<P ALIGN="JUSTIFY"></P>
<OL>

<OL>

<P ALIGN="JUSTIFY"><LI>Term of Option. This Stock Option shall expire on November 21, 2006, unless
earlier terminated by virtue of a change in the optionee's employment status or the optionee's death
or disability.</LI></P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY"><LI>Change of Control and other events.  This Stock Option incorporates by
reference any terms regarding Change of Control and other events affecting the optionee's stock
options as provided in the employment agreement between Lam Research Corporation and the optionee.
</LI></P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY"> </P>
<P ALIGN="JUSTIFY"><LI>All terms of the Original Grant remain the same except as amended above. Only
where amended do the amended terms supersede those of the Original Grant.</LI></P></OL>
</OL>

<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY">Optionee</P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY"> </P>
<U><P ALIGN="JUSTIFY">/s/ James W. Bagley</U>_______________</P>
<P ALIGN="JUSTIFY">James W. Bagley</P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY"> </P>
<P ALIGN="JUSTIFY">LAM RESEARCH CORPORATION</P>
<P ALIGN="JUSTIFY"></P>
<P ALIGN="JUSTIFY">By <U>/s/ Terry Bean</U>___________________</P>
<P ALIGN="JUSTIFY">	Terry Bean</P>
<P ALIGN="JUSTIFY">Its Vice-President of Human Resources</P>
<P ALIGN="JUSTIFY"></P>
<B><P ALIGN="CENTER"> </P>
<P ALIGN="CENTER"> </P></B>