<SEC-DOCUMENT>0001628280-18-014017-index.html : 20181108
<SEC-HEADER>0001628280-18-014017.hdr.sgml : 20181108
<ACCEPTANCE-DATETIME>20181108171713
ACCESSION NUMBER:		0001628280-18-014017
CONFORMED SUBMISSION TYPE:	S-8
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20181108
DATE AS OF CHANGE:		20181108
EFFECTIVENESS DATE:		20181108

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-8
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-228283
		FILM NUMBER:		181170622

	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-8
<SEQUENCE>1
<FILENAME>forms-811x8x18.htm
<DESCRIPTION>S-8
<TEXT>
Document 1 - file: forms-811x8x18.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>exhibit51.htm
<DESCRIPTION>EXHIBIT 5.1
<TEXT>
Document 2 - file: exhibit51.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.1
<SEQUENCE>3
<FILENAME>exhibit101eip.htm
<DESCRIPTION>EXHIBIT 10.1
<TEXT>
Document 3 - file: exhibit101eip.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>4
<FILENAME>exhibit231consent.htm
<DESCRIPTION>EXHIBIT 23.1
<TEXT>
Document 4 - file: exhibit231consent.htm

</DOCUMENT>
</SEC-DOCUMENT>