SEC FORM 3 SEC Form 3
FORM 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
 
OMB APPROVAL
OMB Number: 3235-0104
Estimated average burden
hours per response: 0.5
1. Name and Address of Reporting Person*
BILLAT SUSAN

(Last) (First) (Middle)
333 WEST SAN CARLOS STREET
SUITE 700

(Street)
SAN JOSE CA 95110

(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
09/12/2003
3. Issuer Name and Ticker or Trading Symbol
PDF SOLUTIONS INC [ PDFS ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
5. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
Remarks:
No securities are beneficially owned.
/s/ P. Steven Melman, Attorney-In-Fact for SUSAN BILLAT 09/16/2003
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
 POWER OF ATTORNEY

    The undersigned hereby constitutes and appoints
P. Steven Melman and John K. Kibarian, and each of them, his or her, true
and lawful attorney-in-fact to:

(1)    execute for and on behalf of
the undersigned, in the undersigneds capacity as an officer and/or
director, and/or person who holds more than 10% of the stock of PDF
Solutions, Inc. (the Company), Forms 3, 4 and 5 in accordance with Section
16(a) of the Securities Exchange Act of 1934, as amended (the Exchange Act)
and the rules thereunder;

(2)    do and perform any and all acts for
and on behalf of the undersigned which may be necessary or desirable to
complete and execute any such Form 3, 4 or 5, complete and execute


any amendment(s) thereto, and timely file any such form with the United
States Securities and Exchange Commission and any stock exchange or similar
authority; and

(3)    take any other action of any type whatsoever in
connection with the foregoing which, in the opinion of such
attorney-in-fact, may be of benefit to, in the best interest of, or legally
required by, the undersigned, it being understood that the documents
executed by such attorney-in-fact on behalf of the undersigned pursuant to
this Power of Attorney shall be in such
form and shall contain such
terms and conditions as such attorney-in-fact may approve in such
attorney-in-facts discretion.

    The undersigned hereby grants to
each such attorney-in-fact full power and authority to do and perform any
and every act and thing whatsoever requisite, necessary or proper to be
done in the exercise of any of the rights and powers herein granted, as
fully to all intents and purposes as the undersigned might or could do if
personally present, with full power of
substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact, or such
attorney-in-facts substitute or substitutes, shall lawfully do or cause to
be done pursuant to this power of attorney.  The undersigned acknowledges
that the foregoing attorneys-in-fact, in serving in such capacity at the
request of the undersigned, are not assuming, nor is the Company assuming,
any of the undersigneds responsibilities to comply with Section 16 of the
Exchange Act.

    This Power of Attorney shall remain in full force
and effect until the undersigned is no longer required to file Forms 3, 4,
and 5 with respect to the undersigneds holdings of and transactions in
securities issued by the Company, unless earlier revoked by the undersigned
in a signed writing delivered to the attorneys-in-fact.  This Power of
Attorney may be filed with the SEC as a confirming statement of the
authority granted herein.

    The undersigned has caused this Power of
Attorney to be executed as of this 15th day of September, 2003.

/s/
SUSAN BILLAT
Signature

SUSAN BILLAT
Print Name