<SEC-DOCUMENT>0001193125-15-348722-index.html : 20151021
<SEC-HEADER>0001193125-15-348722.hdr.sgml : 20151021
<ACCEPTANCE-DATETIME>20151021061802
ACCESSION NUMBER:		0001193125-15-348722
CONFORMED SUBMISSION TYPE:	425
PUBLIC DOCUMENT COUNT:		11
FILED AS OF DATE:		20151021
DATE AS OF CHANGE:		20151021

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:		425
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-09992
		FILM NUMBER:		151167307

	BUSINESS ADDRESS:	
		STREET 1:		ONE TECHNOLOGY DRIVE
		CITY:			MILPITAS
		STATE:			CA
		ZIP:			95035
		BUSINESS PHONE:		4088756000

	MAIL ADDRESS:	
		STREET 1:		ONE TECHNOLOGY DRIVE
		CITY:			MILPITAS
		STATE:			CA
		ZIP:			95035

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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LAM RESEARCH CORP
		CENTRAL INDEX KEY:			0000707549
		STANDARD INDUSTRIAL CLASSIFICATION:	SPECIAL INDUSTRY MACHINERY, NEC [3559]
		IRS NUMBER:				942634797
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	FILING VALUES:
		FORM TYPE:		425

	BUSINESS ADDRESS:	
		STREET 1:		4650 CUSHING BLVD
		CITY:			FREMONT
		STATE:			CA
		ZIP:			94538
		BUSINESS PHONE:		5106590200

	MAIL ADDRESS:	
		STREET 1:		4650 CUSHING PARKWAY
		CITY:			FREMONT
		STATE:			CA
		ZIP:			94538
</SEC-HEADER>
<DOCUMENT>
<TYPE>425
<SEQUENCE>1
<FILENAME>d39880d425.htm
<DESCRIPTION>425
<TEXT>
Document 1 - file: d39880d425.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g39880img002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g39880img002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g39880img003.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g39880img003.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g39880img004.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g39880img004.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g39880img005.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g39880img005.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g39880img006.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g39880img006.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g39880img007.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g39880img007.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g39880img008.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g39880img008.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>g39880img009.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: g39880img009.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>g39880img010.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: g39880img010.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>g39880new01.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: g39880new01.jpg

</DOCUMENT>
</SEC-DOCUMENT>