<SEC-DOCUMENT>0001437749-18-007967-index.html : 20180427
<SEC-HEADER>0001437749-18-007967.hdr.sgml : 20180427
<ACCEPTANCE-DATETIME>20180427152306
ACCESSION NUMBER:		0001437749-18-007967
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20180529
FILED AS OF DATE:		20180427
DATE AS OF CHANGE:		20180427
EFFECTIVENESS DATE:		20180427

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PDF SOLUTIONS INC
		CENTRAL INDEX KEY:			0001120914
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROGRAMMING SERVICES [7371]
		IRS NUMBER:				251701361
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-31311
		FILM NUMBER:		18783408

	BUSINESS ADDRESS:	
		STREET 1:		333 WEST SAN CARLOS STREET
		STREET 2:		SUITE 700
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95110
		BUSINESS PHONE:		4082807900

	MAIL ADDRESS:	
		STREET 1:		333 WEST SAN JOSE STREET
		STREET 2:		SUITE 700
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95110
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEF 14A
<SEQUENCE>1
<FILENAME>pdfs20180424_def14a.htm
<DESCRIPTION>FORM DEF 14A
<TEXT>
Document 1 - file: pdfs20180424_def14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>b2.jpg
<TEXT>
Document 2 - file: b2.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>a1.jpg
<TEXT>
Document 3 - file: a1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>a2.jpg
<TEXT>
Document 4 - file: a2.jpg

</DOCUMENT>
</SEC-DOCUMENT>