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<FONT size=2 face="serif">As filed with the Securities and Exchange Commission
on April 4, 2005</FONT></TD>
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<FONT size=2 face="serif">Registration No. 333-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT>
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<B><FONT size="4" face="serif">SECURITIES AND EXCHANGE COMMISSION</FONT><FONT face="serif"><br>
</FONT></B><FONT size=2 face="serif">Washington, D.C. 20549 </FONT></P>
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<B><FONT size="4" face="serif">FORM S-8<br>
</FONT></B><font size="4"><B><FONT face="serif">REGISTRATION STATEMENT<br>
</FONT></B></font><I><FONT size=2 face="serif">Under<br>
</FONT></I><I><FONT size=2 face="serif">The Securities Act of 1933</FONT></I><FONT size=2 face="serif"> </FONT></P>
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<B><FONT size="4" face="serif">ULTRA CLEAN HOLDINGS, INC.</FONT><FONT face="serif"><br>
</FONT></B><FONT size=2 face="serif">(Exact name of registrant as specified in its charter) </FONT></P>
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      <font size="2"><B><FONT face="serif">Delaware</FONT></B></font></TD>
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      <font size="2"><B><FONT face="serif">61-1430858</FONT></B></font></TD>
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        <FONT size=2 face="serif">(State or other jurisdiction<br>
      of incorporation or organization)</FONT><FONT size=2 face="serif">&nbsp;      </FONT></TD>
      <TD width=50% align=center>
        <FONT size=2 face="serif">(IRS Employer Identification No.)</FONT>
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  <B><FONT size=2 face="serif">150 INDEPENDENCE DRIVE<br>
MENLO PARK, CA 94025<br>
</FONT></B><FONT size=2 face="serif">(Address of principal executive offices) (Zip Code) </FONT></div>
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<B><FONT size=2 face="serif">ULTRA CLEAN HOLDINGS, INC. AMENDED AND RESTATED
STOCK INCENTIVE PLAN<br>
</FONT></B><FONT size=2 face="serif">(Full title of the Plan) </FONT></P>
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<B><FONT size=2 face="serif">INCORPORATING SERVICES, INC.<br>
15 EAST NORTH STREET<br>
</FONT></B><B><FONT size=2 face="serif">DOVER, DE 19901<br>
(800) 346-4646<br>
</FONT></B><FONT size=2 face="serif">(Name, address including zip code, and telephone
number,<br>
including area code, of agent for service)</FONT><FONT size=2 face="serif"> </FONT></P>
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<I><FONT size=2 face="serif">Copies to:<br>
</FONT></I><FONT size=2 face="serif">Alan F. Denenberg,
Esq.<br>
Davis Polk &amp; Wardwell<br>
1600 El Camino Real<br>
Menlo Park, California 94025<br>
(650) 752-2000</FONT></P>
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<B><FONT size=2 face="serif">CALCULATION OF REGISTRATION FEE </FONT></B></P>
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  <tr align="center" valign="bottom">
    <td> <B><FONT size=1 face="serif">Title of<br>
Securities to be<br>
Registered</FONT></B></td>
    <td width="20%"> <B><FONT size=1 face="serif">Amount to be<br>
Registered (1)</FONT></B></td>
    <td width="20%"> <B><FONT size=1 face="serif">Proposed Maximum<br>
Offering Price<br>
per Share (2)</FONT></B></td>
    <td width="20%"> <B><FONT size=1 face="serif">Proposed Maximum<br>
Aggregate Offering<br>
Price (2)</FONT></B></td>
    <td width="20%"> <B><FONT size=1 face="serif">Amount of<br>
Registration Fee</FONT></B></td>
  </tr>
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    <td nowrap> <FONT size=2 face="serif">Common Stock, $0.001 par value</FONT></td>
    <td width="20%" align="center"> <FONT size=2 face="serif">327,329 shares</FONT></td>
    <td width="20%" align="center"> <FONT size=2 face="serif">$6.07</FONT> </td>
    <td width="20%" align="center"> <FONT size=2 face="serif">$1,986,887</FONT> </td>
    <td width="20%" align="center"> <FONT size=2 face="serif">$234</FONT></td>
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<FONT size=2 face="serif">(1)</FONT></TD>
	<TD width="90%">
<FONT size=2 face="serif">This Registration Statement covers shares being added
to the Ultra Clean Holdings, Inc. Amended and Restated Stock Incentive Plan.
This Registration Statement shall also cover any additional shares of common
stock which  become issuable under the Ultra Clean Holdings, Inc.
Amended and Restated Stock Incentive Plan by reason
of any stock dividend, stock split, recapitalization or other similar transaction
effected without Registrant&#146;s receipt of consideration which results in
an increase in the number of the outstanding shares of Registrant&#146;s common
stock. </FONT></TD>
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<TR><TD colspan=3>&nbsp;</TD></TR><TR>
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<FONT size=2 face="serif">(2)</FONT></TD>
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<FONT size=2 face="serif">Calculated under Rule 457(h) of the Securities Act
of 1933, as amended, on the basis of the average of the high and low selling
prices per share of the Registrant&#146;s Common Stock on March 30, 2005 as reported
by the  NASDAQ National Market.</FONT></TD>
</TR>
<TR><TD colspan=3>&nbsp;</TD></TR></TABLE>
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<B><FONT size=2 face="serif">PART II<br>
</FONT></B><B><FONT size=2 face="serif">Information Required in the Registration Statement</FONT></B></P>
<P>
<FONT size=2 face="serif">Item 3. </FONT><U><FONT size=2 face="serif">Incorporation of Documents by Reference</FONT></U></P>
<P>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT size=2 face="serif">Ultra Clean Holdings, Inc. (the &#147;Registrant&#148;) hereby incorporates by reference into this Registration Statement the following documents previously filed with the Securities and
Exchange Commission (the &#147;SEC&#148;): </FONT></P>
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<FONT size=2 face="serif">(a)</FONT></TD>
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<FONT size=2 face="serif">The Corporation&#146;s Annual Report on Form 10-K for
the fiscal year ended December 31, 2004, filed with the SEC on March 30, 2005,
pursuant to Section 13 of the Securities Exchange Act of 1934, as amended (the &#147;1934
 Act&#148;);</FONT></TD>
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<TR><TD colspan=3>&nbsp;</TD></TR><TR>
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<FONT size=2 face="serif">(b)</FONT>&nbsp; 	</TD>
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<FONT size=2 face="serif">The Corporation&#146;s Current Report on Form 8-K filed
with the SEC on March 24, 2005 pursuant to Section 13 or 15(d) of the 1934 Act;
and</FONT></TD>
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<FONT size=2 face="serif">(c)</FONT>&nbsp; 	</TD>
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<FONT size=2 face="serif">The description of the Registrant&#146;s common stock
contained in its Registration Statement on Form 8-A, filed on March 23, 2004,
pursuant to Section 12(g) of the 1934 Act, including any amendment or report
filed for the  purpose of updating such description.</FONT></TD>
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<P>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT size=2 face="serif">All reports and definitive proxy or information statements filed pursuant to Section 13(a), 13(c), 14 or 15(d) of the 1934 Act after the date of this Registration Statement and prior to the
filing of a post-effective amendment which indicates that all securities offered hereby have been sold or which deregisters all securities then remaining unsold shall be deemed to be incorporated by reference into this Registration Statement and to
be a part hereof from the date of filing of such documents. Any statement contained in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes of this Registration Statement
to the extent that a statement contained herein or in any subsequently filed document which also is deemed to be incorporated by reference herein modifies or supersedes such statement.  Any such statement so modified or superseded shall not be
deemed, except as so modified or superseded, to constitute a part of this Registration Statement. </FONT></P>
<P>
<FONT size=2 face="serif">Item 4. </FONT><U><FONT size=2 face="serif">Description of Securities</FONT></U><FONT size=2 face="serif"> </FONT></P>
<P>
<FONT size=2 face="serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable. </FONT></P>
<P>
<FONT size=2 face="serif">Item 5.  </FONT><U><FONT size=2 face="serif">Interests of Named Experts and Counsel</FONT></U><FONT size=2 face="serif"> </FONT></P>
<P>
<FONT size=2 face="serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable. </FONT></P>
<P>
<FONT size=2 face="serif">Item 6. </FONT><U><FONT size=2 face="serif">Indemnification of Directors and Officers</FONT></U></P>
<P>
<I><FONT size=2 face="serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Delaware General Corporation Law</FONT></I></P>
<P>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT size=2 face="serif">Section 145 of the Delaware General Corporation Law provides that a corporation may indemnify directors and officers as well as other employees and individuals against expenses (including
attorneys&#146; fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by such person in connection with any threatened, pending or completed actions, suits or proceedings in which such person is made a party by
reason of such person being or having been a director, officer, employee or agent to Ultra Clean Holdings, Inc. The Delaware General Corporation Law provides that Section 145 is not exclusive of other rights to which those seeking indemnification
may be entitled under any bylaw, agreement, vote of stockholders or disinterested directors or otherwise.</FONT></P>
<P>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT size=2 face="serif">Section 102(b)(7) of the Delaware General Corporation Law permits a corporation to provide in its certificate of incorporation that a director of the corporation shall not be personally liable
to the corporation or its stockholders for monetary damages for breach of fiduciary duty as a director, except for liability for any breach of</FONT></P>
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<FONT size=2 face="serif">the director&#146;s duty of loyalty to the corporation or its stockholders, for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, for unlawful payments of dividends
or unlawful stock repurchases, redemptions or other distributions, or for any transaction from which the director derived an improper personal benefit.</FONT></P>
<P>
<I><FONT size=2 face="serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Amended and Restated Certificate of Incorporation</FONT></I></P>
<P>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT size=2 face="serif">Article 8 of Ultra Clean Holdings, Inc.&#146;s amended and restated certificate of incorporation provides that a director of Ultra Clean Holdings, Inc. shall not be liable to Ultra Clean
Holdings, Inc. or its stockholders for monetary damages for breach of fiduciary duty as a director to the fullest extent permitted by Delaware law. In addition, Article 8 of Ultra Clean Holdings, Inc.&#146;s amended and restated certificate of
incorporation provides that each person (and the heirs, executors or administrators of such person) who was or is a party or is threatened to be made a party to, or is involved in any threatened, pending or completed action, suit or proceeding,
whether civil, criminal, administrative or investigative, by reason of the fact that such person is or was a director or officer of Ultra Clean Holdings, Inc. or is or was serving at the request of Ultra Clean Holdings, Inc. as a director or officer
of another corporation, partnership, joint venture, trust, employee benefic plan or other enterprise, shall be indemnified and held harmless by Ultra Clean Holdings, Inc. to the fullest extent permitted by Delaware law. The right to indemnification
conferred in Article 8 also includes the right to be paid by Ultra Clean Holdings, Inc. the expenses incurred in connection with any such proceeding in advance of its final disposition to the fullest extent authorized by Delaware law.</FONT></P>
<P>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT size=2 face="serif">Article 8 of Ultra Clean Holdings, Inc.&#146;s amended and restated certificate of incorporation provides that Ultra Clean Holdings, Inc. may, by action of its board of directors, provide
indemnification to such employees and agents of Ultra Clean Holdings, Inc. to such extent and to such effect as its board of directors shall determine to be appropriate and authorized by Delaware law. Article 8 also provides that Ultra Clean
Holdings, Inc. shall have power to purchase and maintain insurance on behalf of any person who is or was a director, officer, employee or agent of Ultra Clean Holdings, Inc. or is or was serving at the request of Ultra Clean Holdings, Inc. as a
director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against any expense, liability or loss incurred by such person in any such capacity or arising out of his status as such, whether or
not Ultra Clean Holdings, Inc. would have the power to indemnify him against such liability under Delaware law.</FONT></P>
<P>
<I><FONT size=2 face="serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Indemnification Agreements and Directors&#146; and Officers&#146; Liability Insurance</FONT></I></P>
<P>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT size=2 face="serif">The Registrant has entered into indemnification agreements with its directors and officers. The indemnification agreements provide indemnification to such directors and officers under certain
circumstances for acts or omissions which may not be covered by directors&#146; and officers&#146; liability insurance. The Registrant also maintains directors&#146; and officers&#146; liability insurance, which insures against liabilities that its
directors or officers may incur in such capacities.</FONT></P>
<P>
<I><FONT size=2 face="serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Registration Rights Agreement</FONT></I></P>
<P>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT size=2 face="serif">Section 2.04 of the Registration Rights Agreement dated as of December 2, 2002 between Ultra Clean Holdings, Inc. and FP-Ultra Clean, LLC, the Registrant&#146;s majority shareholder (the
&#147;Registration Rights Agreement&#148;), provides that Ultra Clean Holdings, Inc. will indemnify and hold harmless FP-Ultra Clean, LLC and certain other persons (together, the &#147;Shareholders&#148;) holding securities covered by a registration
statement (&#147;Registrable Securities&#148;), its officers, directors, employees, partners and agents, and each person, if any, who controls such Shareholder within the meaning of Section 15 of the Securities Act of 1933, as amended, or Section 20
of the Securities Exchange Act of 1934, as amended, from and against any and all losses, claims, damages, liabilities and expenses (including reasonable expenses of investigation and reasonable attorneys&#146; fees and expenses)
(&#147;Damages&#148;) caused by or relating to any untrue statement or alleged untrue statement of a material fact contained in any registration statement or prospectus relating to the Registrable Securities (as amended or supplemented if Ultra
Clean Holdings, Inc. shall have furnished any amendments or supplements thereto) or any preliminary prospectus, or caused by or relating to any omission or alleged omission to state therein a material fact required to be stated therein or necessary
to make the statements therein not misleading, except insofar as such Damages are caused by or related to any such untrue statement or omission or alleged untrue statement or omission so made based upon information furnished in writing to Ultra
Clean Holdings, Inc. by such Shareholder or on such Shareholder&#146;s</FONT></P>
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<FONT size=2 face="serif">behalf expressly for use therein, provided that, with respect to any untrue statement or omission or alleged untrue statement or omission made in any preliminary prospectus, or in any prospectus, as the case may be, the
indemnity agreement contained in this paragraph shall not apply to the extent that any Damages result from the fact that a current copy of the prospectus (or such amended or supplemented prospectus, as the case may be) was not sent or given to the
person asserting any such Damages at or prior to the written confirmation of the sale of the Registrable Securities concerned to such person if it is determined that Ultra Clean Holdings, Inc. has provided such prospectus to such Shareholder and it
was the responsibility of such Shareholder to provide such person with a current copy of the prospectus (or such amended or supplemented prospectus, as the case may be) and such current copy of the prospectus (or such amended or supplemented
prospectus, as the case may be) would have cured the defect giving rise to such Damages.</FONT></P>
<P>
<FONT size=2 face="serif">Item 7. </FONT><U><FONT size=2 face="serif">Exemption from Registration Claimed</FONT></U><FONT size=2 face="serif"> </FONT></P>
<P>
<FONT size=2 face="serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable. </FONT></P>
<P>
<FONT size=2 face="serif">Item 8. </FONT><U><FONT size=2 face="serif">Exhibits</FONT></U><FONT size=2 face="serif"> </FONT></P>
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	<TD colspan="2" align=center>
<U><FONT size=2 face="serif">Exhibit Number</FONT></U>
	</TD>
	<TD width=85% align=left> <U><FONT size=2 face="serif">Exhibit</FONT></U>
	</TD>
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  <TD align=right>&nbsp;</TD>
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<FONT size=2 face="serif">5.1</FONT>
	</TD>
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	</TD>
	<TD width=85% align=left> <FONT size=2 face="serif">Opinion of Davis Polk &amp; Wardwell</FONT>
	</TD>
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<FONT size=2 face="serif">23.1</FONT>
	</TD>
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	</TD>
	<TD width=85% align=left> <FONT size=2 face="serif">Consent of Independent Registered Public Accounting Firm</FONT>
	</TD>
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  <TD align=right>&nbsp;</TD>
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<FONT size=2 face="serif">23.2</FONT>
	</TD>
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	</TD>
	<TD width=85% align=left> <FONT size=2 face="serif">Consent of Davis Polk &amp; Wardwell (included in Exhibit 5.1)</FONT>
	</TD>
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  <TD align=right>&nbsp;</TD>
  <TD align=left></TD>
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	<TD width=10% align=right>
<FONT size=2 face="serif">24</FONT>
	</TD>
	<TD width=5% align=left>

	</TD>
	<TD width=85% align=left> <FONT size=2 face="serif">Power of Attorney (included on signature page)</FONT>
	</TD>
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  <TD align=right>&nbsp;</TD>
  <TD align=left>&nbsp;</TD>
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<FONT size=2 face="serif">99.1</FONT>
	</TD>
	<TD width=5% align=left>
<FONT size=2 face="serif">(1)</FONT>
	</TD>
	<TD width=85% align=left> <FONT size=2 face="serif">Ultra Clean Holdings, Inc. Amended and Restated Stock Incentive Plan</FONT>
	</TD>
</TR>
<TR>
  <TD>&nbsp;</TD>
  <TD>&nbsp;</TD>
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<FONT size=2 face="serif">(1)</FONT>
      <FONT size=2 face="serif">Incorporated by reference to Exhibit 99.1 of the Registrant&#146;s Form S-8 filed on March 30, 2004.</FONT>	</TD>
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<P align="left">
<FONT size=2 face="serif">Item 9. </FONT><U><FONT size=2 face="serif">Undertakings</FONT></U><FONT size=2 face="serif"> </FONT></P>
<P align="left">
<FONT size=2 face="serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a. The undersigned Registrant hereby undertakes:</FONT></P>
<blockquote>
  <p align="left"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT size=2 face="serif">(1) to file, during any period in which offers or sales are being made, a post-effective amendment to this Registration Statement to include any material information with respect to the plan of
    distribution not previously disclosed in this Registration Statement or any material change to such information in this Registration Statement;</FONT></p>
  <p align="left"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT size=2 face="serif">(2) that for the purpose of determining any liability under the 1933 Act each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered
    therein and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof; and </FONT></p>
  <p align="left"> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT size=2 face="serif">(3) to remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering. </FONT></p>
</blockquote>
<P align="left">
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT size=2 face="serif">b. The undersigned Registrant hereby undertakes that, for purposes of determining any liability under the 1933 Act, each filing of the Registrant&#146;s annual report pursuant to Section 13(a)
or Section 15(d) of the 1934 Act that is incorporated by reference into this Registration Statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall
be deemed to be the initial bona fide offering thereof. </FONT></P>
<P align="left">
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT size=2 face="serif">c. Insofar as indemnification
for liabilities arising under the 1933 Act may be permitted to directors, officers,
or controlling persons of the Registrant pursuant to the indemnification  foregoing
provisions summarized in</FONT></P>
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<FONT size=2 face="serif">Item 6 or otherwise, the Registrant has been advised that, in the opinion of the SEC, such indemnification is against public policy as expressed in the 1933 Act, and is, therefore, unenforceable.  In the event that a claim
for indemnification against such liabilities (other than the payment by the Registrant of expenses incurred or paid by a director, officer, or controlling person of the Registrant in the successful defense of any action, suit, or proceeding) is
asserted by such director, officer, or controlling person in connection with the securities being registered, the Registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the 1933 Act and will be governed by the final adjudication of such issue. </FONT></P>
<div align="center"><FONT size=2 face="serif">II-4</FONT>
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<B><FONT size=2 face="serif">SIGNATURES</FONT></B></P>
<P>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT size=2 face="serif">Pursuant to the requirements of the Securities Act of 1933, as amended, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on
Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Menlo Park, State of California, on the 4th day of April, 2005. </FONT></P>
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      <td colspan="3"> <B><FONT size=2 face="serif">ULTRA CLEAN HOLDINGS, INC.</FONT></B></td>
    </tr>
    <tr>
      <td width="7%"><font size="2" face="Times New Roman, Times, serif">&nbsp;</font></td>
      <td width="10%"><font size="2" face="Times New Roman, Times, serif">&nbsp;</font></td>
      <td width="83%"><font size="2" face="Times New Roman, Times, serif">&nbsp;</font></td>
    </tr>
    <tr>
      <td width="7%"><font size="2" face="Times New Roman, Times, serif">By:</font></td>
      <td colspan="2"> <FONT size=2 face="serif">/s/ Clarence L. Granger</FONT></td>
    </tr>
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      <td width="7%"><font size="2" face="Times New Roman, Times, serif">&nbsp;</font></td>
      <td colspan="2"><hr align="left" width=60% size=1 noshade color="#000000"></td>
    </tr>
    <tr>
      <td width="7%"><font size="2" face="Times New Roman, Times, serif">&nbsp;</font></td>
      <td width="10%"><font size="2" face="Times New Roman, Times, serif">Name:</font></td>
      <td width="83%"><FONT size=2 face="serif">Clarence L. Granger</FONT> </td>
    </tr>
    <tr>
      <td width="7%"><font size="2" face="Times New Roman, Times, serif">&nbsp;</font></td>
      <td width="10%"><font size="2" face="Times New Roman, Times, serif">Title:</font></td>
      <td width="83%"><FONT size=2 face="serif">Chief Executive Officer</FONT> <font size="2" face="Times New Roman, Times, serif">&nbsp;</font></td>
    </tr>
  </table>
</div>
<P align="center">&nbsp;</P>
<P align="center"><B><U><FONT size=2 face="serif">POWER OF ATTORNEY</FONT></U></B></P>
<P>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT size=2 face="serif">KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Clarence L. Granger and Kevin L. Griffin, and each of them, his/her true and lawful
attorneys-in-fact and agents, with full power of substitution and resubstitution, for him/her and in his/her name, place and stead, in any and all capacities, to sign any or all amendments (including post-effective amendments) to this Registration
Statement and to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents and each of them, full power and authority to do and
perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he/she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents
or any of them, or their or his/her substitute or substitutes, may lawfully do or cause to be done by virtue hereof. </FONT></P>
<P>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B><FONT size=2 face="serif">IN WITNESS WHEREOF</FONT></B><FONT size=2 face="serif">, each of the undersigned has executed this Power of Attorney as of the date indicated. </FONT></P>
<P>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<FONT size=2 face="serif">Pursuant to the requirements
of the Securities Act of 1933, as amended, this Registration Statement has been
signed below by the following persons in the capacities and on the dates indicated.</FONT></P>
<TABLE width=95% border=0 cellspacing=0 cellpadding=0>
<TR valign="bottom">
	<TD width=37% align=left>
<U><FONT size=2 face="serif">Signature</FONT></U>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=45% align=left>
<U><FONT size=2 face="serif">Title</FONT></U>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=14% align=left>
<U><FONT size=2 face="serif">Date</FONT></U>
	</TD>
</TR>
<TR valign="bottom">
  <TD align=left>&nbsp;</TD>
  <TD>&nbsp;</TD>
  <TD align=left>&nbsp;</TD>
  <TD>&nbsp;</TD>
  <TD align=left>&nbsp;</TD>
</TR>
<TR valign="bottom">
	<TD width=37% align=left>
<FONT size=2 face="serif">/s/ Clarence L. Granger</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=45% align=left>
<FONT size=2 face="serif">Chief Executive Officer and</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=14% align=left>
<FONT size=2 face="serif">April 4, 2005</FONT>
	</TD>
</TR>
<TR>
	<TD width="37%">
<HR align="left" width="60%" size=1 noshade>
	</TD>
	<TD>
	</TD>
	<TD width=45% align=left valign="bottom"> <FONT size=2 face="serif">Director
	    (Principal Executive</FONT> </TD>
	<TD>
	</TD>
	<TD>
	</TD>
</TR>
<TR valign="bottom">
	<TD width=37% align=left>
<FONT size=2 face="serif">Clarence L. Granger</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=45% align=left> <FONT size=2 face="serif">Officer)</FONT> </TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=14% align=left>

	</TD>
</TR>
<TR valign="bottom">
	<TD width=37% align=left>

	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=45% align=left>&nbsp;</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=14% align=left>

	</TD>
</TR>
<TR valign="bottom">
  <TD align=left>&nbsp;</TD>
  <TD>&nbsp;</TD>
  <TD align=left>&nbsp;</TD>
  <TD>&nbsp;</TD>
  <TD align=left>&nbsp;</TD>
</TR>
<TR valign="bottom">
	<TD width=37% align=left>
<FONT size=2 face="serif">/s/ Kevin L. Griffin</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=45% align=left>
<FONT size=2 face="serif">Acting Chief Financial Officer</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=14% align=left>
<FONT size=2 face="serif">April 4, 2005</FONT>
	</TD>
</TR>
<TR>
	<TD width="37%">
      <HR align="left" width="60%" size=1 noshade>
	</TD>
	<TD>
	</TD>
	<TD width=45% align=left valign="bottom"> <FONT size=2 face="serif">(Principal
	    Financial and</FONT> </TD>
	<TD>
	</TD>
	<TD>
	</TD>
</TR>
<TR valign="bottom">
	<TD width=37% align=left>
<FONT size=2 face="serif">Kevin L. Griffin</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=45% align=left> <FONT size=2 face="serif">Accounting Officer)</FONT> </TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=14% align=left>

	</TD>
</TR>
<TR valign="bottom">
	<TD width=37% align=left>

	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=45% align=left>&nbsp;</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=14% align=left>

	</TD>
</TR>
</TABLE>
<div align="center"><BR>
    <FONT size=2 face="serif">II-5</FONT>
  <br>
  <br>
</div>
<hr size=3 color=GRAY noshade>
<!-- *************************************************************************** -->
<!-- MARKER PAGE -->
<br>
<br>
<br>

<TABLE width=95% border=0 cellspacing=0 cellpadding=0>
<TR valign="bottom">
	<TD width=37% align=left>
<FONT size=2 face="serif">/s/ Brian R. Bachman</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=45% align=left>

	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=14% align=left>

	</TD>
</TR>
<TR>
	<TD width="37%">
      <HR align="left" width="60%" size=1 noshade>	</TD>
	<TD width="2%">
	</TD>
	<TD width="45%" align="left">
	</TD>
	<TD width="2%">
	</TD>
	<TD width="14%" align="left">
	</TD>
</TR>
<TR valign="bottom">
  <TD width=37% align=left> <font size=2 face="serif">Brian R. Bachman</font> </TD>
  <TD width=2%>&nbsp;</TD>
  <TD width=45% align=left> <font size=2 face="serif">Director</font> </TD>
  <TD width=2%>&nbsp;</TD>
  <TD width=14% align=left> <font size=2 face="serif">April 4, 2005</font> </TD>
</TR>
<TR valign="bottom">
  <TD align=left>&nbsp;</TD>
  <TD>&nbsp;</TD>
  <TD align=left>&nbsp;</TD>
  <TD>&nbsp;</TD>
  <TD align=left>&nbsp;</TD>
</TR>
<TR valign="bottom">
	<TD width=37% align=left>&nbsp;</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=45% align=left>&nbsp;</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=14% align=left>&nbsp;</TD>
</TR>
<TR valign="bottom">
	<TD width=37% align=left>
<FONT size=2 face="serif">/s/ Susan H. Billat</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=45% align=left>

	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=14% align=left>

	</TD>
</TR>
<TR>
	<TD width="37%">
      <HR align="left" width="60%" size=1 noshade>	</TD>
	<TD width="2%">
	</TD>
	<TD width="45%" align="left">
	</TD>
	<TD width="2%">
	</TD>
	<TD width="14%" align="left">
	</TD>
</TR>
<TR valign="bottom">
	<TD width=37% align=left>
<FONT size=2 face="serif">Susan H. Billat</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=45% align=left>
<FONT size=2 face="serif">Director</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=14% align=left>
<FONT size=2 face="serif">April 4, 2005</FONT>
	</TD>
</TR>
<TR valign="bottom">
  <TD align=left>&nbsp;</TD>
  <TD>&nbsp;</TD>
  <TD align=left></TD>
  <TD>&nbsp;</TD>
  <TD align=left></TD>
</TR>
<TR valign="bottom">
  <TD align=left>&nbsp;</TD>
  <TD>&nbsp;</TD>
  <TD align=left></TD>
  <TD>&nbsp;</TD>
  <TD align=left></TD>
</TR>
<TR valign="bottom">
	<TD width=37% align=left>
<FONT size=2 face="serif">/s/ Dipanjan Deb</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=45% align=left>

	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=14% align=left>

	</TD>
</TR>
<TR>
	<TD width="37%">
      <HR align="left" width="60%" size=1 noshade>	</TD>
	<TD width="2%">
	</TD>
	<TD width="45%" align="left">
	</TD>
	<TD width="2%">
	</TD>
	<TD width="14%" align="left">
	</TD>
</TR>
<TR valign="bottom">
	<TD width=37% align=left>
<FONT size=2 face="serif">Dipanjan Deb</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=45% align=left>
<FONT size=2 face="serif">Director</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=14% align=left>
<FONT size=2 face="serif">April 4, 2005</FONT>
	</TD>
</TR>
<TR valign="bottom">
  <TD align=left>&nbsp;</TD>
  <TD>&nbsp;</TD>
  <TD align=left></TD>
  <TD>&nbsp;</TD>
  <TD align=left></TD>
</TR>
<TR valign="bottom">
  <TD align=left>&nbsp;</TD>
  <TD>&nbsp;</TD>
  <TD align=left></TD>
  <TD>&nbsp;</TD>
  <TD align=left></TD>
</TR>
<TR valign="bottom">
	<TD width=37% align=left>
<FONT size=2 face="serif">/s/ Kevin C. Eichler</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=45% align=left>

	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=14% align=left>

	</TD>
</TR>
<TR>
	<TD width="37%">
      <HR align="left" width="60%" size=1 noshade>	</TD>
	<TD width="2%">
	</TD>
	<TD width="45%" align="left">
	</TD>
	<TD width="2%">
	</TD>
	<TD width="14%" align="left">
	</TD>
</TR>
<TR valign="bottom">
	<TD width=37% align=left>
<FONT size=2 face="serif">Kevin C. Eichler</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=45% align=left>
<FONT size=2 face="serif">Director</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=14% align=left>
<FONT size=2 face="serif">April 4, 2005</FONT>
	</TD>
</TR>
<TR valign="bottom">
  <TD align=left>&nbsp;</TD>
  <TD>&nbsp;</TD>
  <TD align=left></TD>
  <TD>&nbsp;</TD>
  <TD align=left></TD>
</TR>
<TR valign="bottom">
  <TD align=left>&nbsp;</TD>
  <TD>&nbsp;</TD>
  <TD align=left></TD>
  <TD>&nbsp;</TD>
  <TD align=left></TD>
</TR>
<TR valign="bottom">
	<TD width=37% align=left>
<FONT size=2 face="serif">/s/ David ibnAle</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=45% align=left>

	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=14% align=left>

	</TD>
</TR>
<TR>
	<TD width="37%">
      <HR align="left" width="60%" size=1 noshade>	</TD>
	<TD width="2%">
	</TD>
	<TD width="45%" align="left">
	</TD>
	<TD width="2%">
	</TD>
	<TD width="14%" align="left">
	</TD>
</TR>
<TR valign="bottom">
	<TD width=37% align=left>
<FONT size=2 face="serif">David ibnAle</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=45% align=left>
<FONT size=2 face="serif">Director</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=14% align=left>
<FONT size=2 face="serif">April 4, 2005</FONT>
	</TD>
</TR>
<TR valign="bottom">
  <TD align=left>&nbsp;</TD>
  <TD>&nbsp;</TD>
  <TD align=left></TD>
  <TD>&nbsp;</TD>
  <TD align=left></TD>
</TR>
<TR valign="bottom">
  <TD align=left>&nbsp;</TD>
  <TD>&nbsp;</TD>
  <TD align=left></TD>
  <TD>&nbsp;</TD>
  <TD align=left></TD>
</TR>
<TR valign="bottom">
	<TD width=37% align=left>
<FONT size=2 face="serif">/s/ Thomas M. Rohrs</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=45% align=left>

	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=14% align=left>

	</TD>
</TR>
<TR>
	<TD width="37%">
      <HR align="left" width="60%" size=1 noshade>	</TD>
	<TD width="2%">
	</TD>
	<TD width="45%" align="left">
	</TD>
	<TD width="2%">
	</TD>
	<TD width="14%" align="left">
	</TD>
</TR>
<TR valign="bottom">
	<TD width=37% align=left>
<FONT size=2 face="serif">Thomas M. Rohrs</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=45% align=left>
<FONT size=2 face="serif">Director</FONT>
	</TD>
	<TD width=2%>&nbsp;
	</TD>
	<TD width=14% align=left>
<FONT size=2 face="serif">April 4, 2005</FONT>
	</TD>
</TR>
</TABLE>
<div align="center"><BR>
    <FONT size=2 face="serif">II-6</FONT>
  <br>
  <br>
</div>
<hr size=3 color=GRAY noshade>
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<!-- MARKER PAGE -->
<br>
<br>

<P align="center">
<B><FONT size=2 face="serif">EXHIBIT INDEX</FONT></B></P>
<TABLE width=95% border=0 cellspacing=0 cellpadding=0>
  <TR valign="bottom">
    <TD colspan="2" align=center> <U><FONT size=2 face="serif">Exhibit Number</FONT></U> </TD>
    <TD width=85% align=left> <U><FONT size=2 face="serif">Exhibit</FONT></U></TD>
  </TR>
  <TR valign="bottom">
    <TD align=right>&nbsp;</TD>
    <TD align=left></TD>
    <TD align=left>&nbsp;</TD>
  </TR>
  <TR valign="bottom">
    <TD width=10% align=right> <FONT size=2 face="serif">5.1</FONT> </TD>
    <TD width=5% align=left> </TD>
    <TD width=85% align=left> <FONT size=2 face="serif">Opinion of Davis Polk &amp; Wardwell</FONT> </TD>
  </TR>
  <TR valign="bottom">
    <TD align=right>&nbsp;</TD>
    <TD align=left></TD>
    <TD align=left>&nbsp;</TD>
  </TR>
  <TR valign="bottom">
    <TD width=10% align=right> <FONT size=2 face="serif">23.1</FONT> </TD>
    <TD width=5% align=left> </TD>
    <TD width=85% align=left> <FONT size=2 face="serif">Consent of Independent
        Registered Public Accounting Firm</FONT> </TD>
  </TR>
  <TR valign="bottom">
    <TD align=right>&nbsp;</TD>
    <TD align=left></TD>
    <TD align=left>&nbsp;</TD>
  </TR>
  <TR valign="bottom">
    <TD width=10% align=right> <FONT size=2 face="serif">23.2</FONT> </TD>
    <TD width=5% align=left> </TD>
    <TD width=85% align=left> <FONT size=2 face="serif">Consent of Davis Polk &amp; Wardwell
        (included in Exhibit 5.1)</FONT> </TD>
  </TR>
  <TR valign="bottom">
    <TD align=right>&nbsp;</TD>
    <TD align=left></TD>
    <TD align=left>&nbsp;</TD>
  </TR>
  <TR valign="bottom">
    <TD width=10% align=right> <FONT size=2 face="serif">24</FONT> </TD>
    <TD width=5% align=left> </TD>
    <TD width=85% align=left> <FONT size=2 face="serif">Power of Attorney (included
        on signature page)</FONT> </TD>
  </TR>
  <TR valign="bottom">
    <TD align=right>&nbsp;</TD>
    <TD align=left>&nbsp;</TD>
    <TD align=left>&nbsp;</TD>
  </TR>
  <TR valign="bottom">
    <TD width=10% align=right> <FONT size=2 face="serif">99.1</FONT> </TD>
    <TD width=5% align=left> <FONT size=2 face="serif">(1)</FONT> </TD>
    <TD width=85% align=left> <FONT size=2 face="serif">Ultra Clean Holdings,
        Inc. Amended and Restated Stock Incentive Plan</FONT> </TD>
  </TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
  </TR>
  <TR>
    <TD width="10%">
      <HR noshade size=1>
    </TD>
    <TD width="5%">&nbsp; </TD>
    <TD width="85%">&nbsp;</TD>
  </TR>
  <TR valign="bottom">
    <TD colspan="3" align=left> <FONT size=2 face="serif">(1)</FONT> <FONT size=2 face="serif">Incorporated
        by reference to Exhibit 99.1 of the Registrant&#146;s Form S-8 filed
        on March 30, 2004.</FONT> </TD>
  </TR>
</TABLE>
<BR>
<br>
<br>
<hr size=3 color=GRAY noshade>
<br>
<br>
</BODY>
</HTML>
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{"company-data": {"conformed-name": "ULTRA CLEAN HOLDINGS INC", "cik": "0001275014", "assigned-sic": "3674", "irs-number": "611430858", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-123820", "film-number": "05730921"}, "mail-address": {"street1": "150 INDEPENDENCE DRIVE", "city": "MENLO PARK", "state": "CA", "zip": "94025"}}
S8
As filed with the Securities and Exchange Commission
on April 4, 2005
Registration No. 333-
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT
Under
The Securities Act of 1933
ULTRA CLEAN HOLDINGS, INC.
(Exact name of registrant as specified in its charter)
Delaware
61-1430858
(State or other jurisdiction
of incorporation or organization)
(IRS Employer Identification No.)
150 INDEPENDENCE DRIVE
MENLO PARK, CA 94025
(Address of principal executive offices) (Zip Code)
ULTRA CLEAN HOLDINGS, INC. AMENDED AND RESTATED
STOCK INCENTIVE PLAN
(Full title of the Plan)
INCORPORATING SERVICES, INC.
15 EAST NORTH STREET
DOVER, DE 19901
(800) 346-4646
(Name, address including zip code, and telephone
number,
including area code, of agent for service)
Copies to:
Alan F. Denenberg,
Esq.
Davis Polk & Wardwell
1600 El Camino Real
Menlo Park, California 94025
(650) 752-2000
CALCULATION OF REGISTRATION FEE
Title of
Securities to be
Registered
Amount to be
Registered (1)
Proposed Maximum
Offering Price
per Share (2)
Proposed Maximum
Aggregate Offering
Price (2)
Amount of
Registration Fee
Common Stock, $0.001 par value
327,329 shares
$6.07
$1,986,887
$234
(1)
This Registration Statement covers shares being added
to the Ultra Clean Holdings, Inc. Amended and Restated Stock Incentive Plan.
This Registration Statement shall also cover any additional shares of common
stock which  become issuable under the Ultra Clean Holdings, Inc.
Amended and Restated Stock Incentive Plan by reason
of any stock dividend, stock split, recapitalization or other similar transaction
effected without Registrant's receipt of consideration which results in
an increase in the number of the outstanding shares of Registrant's common
stock.
(2)
Calculated under Rule 457(h) of the Securities Act
of 1933, as amended, on the basis of the average of the high and low selling
prices per share of the Registrant's Common Stock on March 30, 2005 as reported
by the  NASDAQ National Market.
PART II
Information Required in the Registration Statement
Item 3.
Incorporation of Documents by Reference
Ultra Clean Holdings, Inc. (the "Registrant") hereby incorporates by reference into this Registration Statement the following documents previously filed with the Securities and
Exchange Commission (the "SEC"):
(a)
The Corporation's Annual Report on Form 10-K for
the fiscal year ended December 31, 2004, filed with the SEC on March 30, 2005,
pursuant to Section 13 of the Securities Exchange Act of 1934, as amended (the "1934
 Act");
(b)
The Corporation's Current Report on Form 8-K filed
with the SEC on March 24, 2005 pursuant to Section 13 or 15(d) of the 1934 Act;
and
(c)
The description of the Registrant's common stock
contained in its Registration Statement on Form 8-A, filed on March 23, 2004,
pursuant to Section 12(g) of the 1934 Act, including any amendment or report
filed for the  purpose of updating such description.
All reports and definitive proxy or information statements filed pursuant to Section 13(a), 13(c), 14 or 15(d) of the 1934 Act after the date of this Registration Statement and prior to the
filing of a post-effective amendment which indicates that all securities offered hereby have been sold or which deregisters all securities then remaining unsold shall be deemed to be incorporated by reference into this Registration Statement and to
be a part hereof from the date of filing of such documents. Any statement contained in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes of this Registration Statement
to the extent that a statement contained herein or in any subsequently filed document which also is deemed to be incorporated by reference herein modifies or supersedes such statement.  Any such statement so modified or superseded shall not be
deemed, except as so modified or superseded, to constitute a part of this Registration Statement.
Item 4.
Description of Securities
Not Applicable.
Item 5.
Interests of Named Experts and Counsel
Not Applicable.
Item 6.
Indemnification of Directors and Officers
Delaware General Corporation Law
Section 145 of the Delaware General Corporation Law provides that a corporation may indemnify directors and officers as well as other employees and individuals against expenses (including
attorneys' fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by such person in connection with any threatened, pending or completed actions, suits or proceedings in which such person is made a party by
reason of such person being or having been a director, officer, employee or agent to Ultra Clean Holdings, Inc. The Delaware General Corporation Law provides that Section 145 is not exclusive of other rights to which those seeking indemnification
may be entitled under any bylaw, agreement, vote of stockholders or disinterested directors or otherwise.
Section 102(b)(7) of the Delaware General Corporation Law permits a corporation to provide in its certificate of incorporation that a director of the corporation shall not be personally liable
to the corporation or its stockholders for monetary damages for breach of fiduciary duty as a director, except for liability for any breach of
II-1
the director's duty of loyalty to the corporation or its stockholders, for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, for unlawful payments of dividends
or unlawful stock repurchases, redemptions or other distributions, or for any transaction from which the director derived an improper personal benefit.
Amended and Restated Certificate of Incorporation
Article 8 of Ultra Clean Holdings, Inc.'s amended and restated certificate of incorporation provides that a director of Ultra Clean Holdings, Inc. shall not be liable to Ultra Clean
Holdings, Inc. or its stockholders for monetary damages for breach of fiduciary duty as a director to the fullest extent permitted by Delaware law. In addition, Article 8 of Ultra Clean Holdings, Inc.'s amended and restated certificate of
incorporation provides that each person (and the heirs, executors or administrators of such person) who was or is a party or is threatened to be made a party to, or is involved in any threatened, pending or completed action, suit or proceeding,
whether civil, criminal, administrative or investigative, by reason of the fact that such person is or was a director or officer of Ultra Clean Holdings, Inc. or is or was serving at the request of Ultra Clean Holdings, Inc. as a director or officer
of another corporation, partnership, joint venture, trust, employee benefic plan or other enterprise, shall be indemnified and held harmless by Ultra Clean Holdings, Inc. to the fullest extent permitted by Delaware law. The right to indemnification
conferred in Article 8 also includes the right to be paid by Ultra Clean Holdings, Inc. the expenses incurred in connection with any such proceeding in advance of its final disposition to the fullest extent authorized by Delaware law.
Article 8 of Ultra Clean Holdings, Inc.'s amended and restated certificate of incorporation provides that Ultra Clean Holdings, Inc. may, by action of its board of directors, provide
indemnification to such employees and agents of Ultra Clean Holdings, Inc. to such extent and to such effect as its board of directors shall determine to be appropriate and authorized by Delaware law. Article 8 also provides that Ultra Clean
Holdings, Inc. shall have power to purchase and maintain insurance on behalf of any person who is or was a director, officer, employee or agent of Ultra Clean Holdings, Inc. or is or was serving at the request of Ultra Clean Holdings, Inc. as a
director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against any expense, liability or loss incurred by such person in any such capacity or arising out of his status as such, whether or
not Ultra Clean Holdings, Inc. would have the power to indemnify him against such liability under Delaware law.
Indemnification Agreements and Directors' and Officers' Liability Insurance
The Registrant has entered into indemnification agreements with its directors and officers. The indemnification agreements provide indemnification to such directors and officers under certain
circumstances for acts or omissions which may not be covered by directors' and officers' liability insurance. The Registrant also maintains directors' and officers' liability insurance, which insures against liabilities that its
directors or officers may incur in such capacities.
Registration Rights Agreement
Section 2.04 of the Registration Rights Agreement dated as of December 2, 2002 between Ultra Clean Holdings, Inc. and FP-Ultra Clean, LLC, the Registrant's majority shareholder (the
"Registration Rights Agreement"), provides that Ultra Clean Holdings, Inc. will indemnify and hold harmless FP-Ultra Clean, LLC and certain other persons (together, the "Shareholders") holding securities covered by a registration
statement ("Registrable Securities"), its officers, directors, employees, partners and agents, and each person, if any, who controls such Shareholder within the meaning of Section 15 of the Securities Act of 1933, as amended, or Section 20
of the Securities Exchange Act of 1934, as amended, from and against any and all losses, claims, damages, liabilities and expenses (including reasonable expenses of investigation and reasonable attorneys' fees and expenses)
("Damages") caused by or relating to any untrue statement or alleged untrue statement of a material fact contained in any registration statement or prospectus relating to the Registrable Securities (as amended or supplemented if Ultra
Clean Holdings, Inc. shall have furnished any amendments or supplements thereto) or any preliminary prospectus, or caused by or relating to any omission or alleged omission to state therein a material fact required to be stated therein or necessary
to make the statements therein not misleading, except insofar as such Damages are caused by or related to any such untrue statement or omission or alleged untrue statement or omission so made based upon information furnished in writing to Ultra
Clean Holdings, Inc. by such Shareholder or on such Shareholder's
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behalf expressly for use therein, provided that, with respect to any untrue statement or omission or alleged untrue statement or omission made in any preliminary prospectus, or in any prospectus, as the case may be, the
indemnity agreement contained in this paragraph shall not apply to the extent that any Damages result from the fact that a current copy of the prospectus (or such amended or supplemented prospectus, as the case may be) was not sent or given to the
person asserting any such Damages at or prior to the written confirmation of the sale of the Registrable Securities concerned to such person if it is determined that Ultra Clean Holdings, Inc. has provided such prospectus to such Shareholder and it
was the responsibility of such Shareholder to provide such person with a current copy of the prospectus (or such amended or supplemented prospectus, as the case may be) and such current copy of the prospectus (or such amended or supplemented
prospectus, as the case may be) would have cured the defect giving rise to such Damages.
Item 7.
Exemption from Registration Claimed
Not Applicable.
Item 8.
Exhibits
Exhibit Number
Exhibit
5.1
Opinion of Davis Polk & Wardwell
23.1
Consent of Independent Registered Public Accounting Firm
23.2
Consent of Davis Polk & Wardwell (included in Exhibit 5.1)
24
Power of Attorney (included on signature page)
99.1
(1)
Ultra Clean Holdings, Inc. Amended and Restated Stock Incentive Plan
(1)
Incorporated by reference to Exhibit 99.1 of the Registrant's Form S-8 filed on March 30, 2004.
Item 9.
Undertakings
a. The undersigned Registrant hereby undertakes:
(1) to file, during any period in which offers or sales are being made, a post-effective amendment to this Registration Statement to include any material information with respect to the plan of
    distribution not previously disclosed in this Registration Statement or any material change to such information in this Registration Statement;
(2) that for the purpose of determining any liability under the 1933 Act each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered
    therein and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof; and
(3) to remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.
b. The undersigned Registrant hereby undertakes that, for purposes of determining any liability under the 1933 Act, each filing of the Registrant's annual report pursuant to Section 13(a)
or Section 15(d) of the 1934 Act that is incorporated by reference into this Registration Statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall
be deemed to be the initial bona fide offering thereof.
c. Insofar as indemnification
for liabilities arising under the 1933 Act may be permitted to directors, officers,
or controlling persons of the Registrant pursuant to the indemnification  foregoing
provisions summarized in
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Item 6 or otherwise, the Registrant has been advised that, in the opinion of the SEC, such indemnification is against public policy as expressed in the 1933 Act, and is, therefore, unenforceable.  In the event that a claim
for indemnification against such liabilities (other than the payment by the Registrant of expenses incurred or paid by a director, officer, or controlling person of the Registrant in the successful defense of any action, suit, or proceeding) is
asserted by such director, officer, or controlling person in connection with the securities being registered, the Registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the 1933 Act and will be governed by the final adjudication of such issue.
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SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, as amended, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on
Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Menlo Park, State of California, on the 4th day of April, 2005.
ULTRA CLEAN HOLDINGS, INC.
By:
/s/ Clarence L. Granger
Name:
Clarence L. Granger
Title:
Chief Executive Officer
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Clarence L. Granger and Kevin L. Griffin, and each of them, his/her true and lawful
attorneys-in-fact and agents, with full power of substitution and resubstitution, for him/her and in his/her name, place and stead, in any and all capacities, to sign any or all amendments (including post-effective amendments) to this Registration
Statement and to file the same, with all exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents and each of them, full power and authority to do and
perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he/she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents
or any of them, or their or his/her substitute or substitutes, may lawfully do or cause to be done by virtue hereof.
IN WITNESS WHEREOF
, each of the undersigned has executed this Power of Attorney as of the date indicated.
Pursuant to the requirements
of the Securities Act of 1933, as amended, this Registration Statement has been
signed below by the following persons in the capacities and on the dates indicated.
Signature
Title
Date
/s/ Clarence L. Granger
Chief Executive Officer and
April 4, 2005
Director
	    (Principal Executive
Clarence L. Granger
Officer)
/s/ Kevin L. Griffin
Acting Chief Financial Officer
April 4, 2005
(Principal
	    Financial and
Kevin L. Griffin
Accounting Officer)
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/s/ Brian R. Bachman
Brian R. Bachman
Director
April 4, 2005
/s/ Susan H. Billat
Susan H. Billat
Director
April 4, 2005
/s/ Dipanjan Deb
Dipanjan Deb
Director
April 4, 2005
/s/ Kevin C. Eichler
Kevin C. Eichler
Director
April 4, 2005
/s/ David ibnAle
David ibnAle
Director
April 4, 2005
/s/ Thomas M. Rohrs
Thomas M. Rohrs
Director
April 4, 2005
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EXHIBIT INDEX
Exhibit Number
Exhibit
5.1
Opinion of Davis Polk & Wardwell
23.1
Consent of Independent
        Registered Public Accounting Firm
23.2
Consent of Davis Polk & Wardwell
        (included in Exhibit 5.1)
24
Power of Attorney (included
        on signature page)
99.1
(1)
Ultra Clean Holdings,
        Inc. Amended and Restated Stock Incentive Plan
(1)
Incorporated
        by reference to Exhibit 99.1 of the Registrant's Form S-8 filed
        on March 30, 2004.