<SEC-DOCUMENT>0001193125-18-165420-index.html : 20180516
<SEC-HEADER>0001193125-18-165420.hdr.sgml : 20180516
<ACCEPTANCE-DATETIME>20180516171157
ACCESSION NUMBER:		0001193125-18-165420
CONFORMED SUBMISSION TYPE:	S-4
PUBLIC DOCUMENT COUNT:		6
FILED AS OF DATE:		20180516
DATE AS OF CHANGE:		20180516

FILER:

	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:		S-4
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-224982
		FILM NUMBER:		18840835

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-4
<SEQUENCE>1
<FILENAME>d562999ds4.htm
<DESCRIPTION>S-4
<TEXT>
Document 1 - file: d562999ds4.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>2
<FILENAME>d562999dex231.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 2 - file: d562999dex231.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.2
<SEQUENCE>3
<FILENAME>d562999dex232.htm
<DESCRIPTION>EX-23.2
<TEXT>
Document 3 - file: d562999dex232.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.2
<SEQUENCE>4
<FILENAME>d562999dex992.htm
<DESCRIPTION>EX-99.2
<TEXT>
Document 4 - file: d562999dex992.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g562999g16c11.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g562999g16c11.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g562999g74u25.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g562999g74u25.jpg

</DOCUMENT>
</SEC-DOCUMENT>