Document:

Exhibit 10.5

EXECUTION COPY

INTELLECTUAL PROPERTY SECURITY AGREEMENT

     This Intellectual Property Security Agreement is entered into as of June 29, 2006 by and between SILICON VALLEY BANK, a California corporation
(“Secured Party”) and ULTRA CLEAN HOLDINGS, INC., a Delaware corporation (“Grantor”). 

RECITALS

     A. Ultra Clean Technology Systems and Service, Inc., a California company (“Ultra
Clean”), Bob Acquisition Inc. (and any successor by merger), a California corporation (“Bob”), and Pete Acquisition LLC (to be renamed UCT Sieger Engineering LLC), a Delaware limited liability company (“Sieger”, together with Ultra Clean and Bob,
each a “Borrower” and collectively, “Borrowers”) and Secured Party, are entering into that certain Loan and Security Agreement dated of even date herewith (as the same may be amended, modified or
supplemented from time to time, the “Loan Agreement”; capitalized terms used herein which are not
defined, have the meanings set forth in the Loan Agreement). 

     B. In consideration of the agreement of Secured Party to make the Credit Extensions to Borrowers under the Loan Agreement, Grantor is willing to grant to Secured
Party a security interest in all of Grantor’s right, title and interest, whether presently existing or hereafter acquired, in, to all Intellectual Property and all other Collateral, all as further set forth herein. 

     C. Guarantor is the corporate parent of Borrowers and will obtain substantial direct and indirect benefit from the Credit Extensions made by Secured Party to
Borrowers under the Loan Agreement. 

     NOW, THEREFORE, as collateral security for the payment and performance when due of all of the Obligations, Grantor hereby grants, represents, warrants, covenants and
agrees as follows: 

AGREEMENT

     1. Grant of Security Interest. To secure all of the
Obligations, Grantor grants and pledges to Secured Party a security interest in all of Grantor’s right, title and interest in, to and under its Intellectual Property (as defined in the Loan Agreement), including without limitation the
following: 

          (a) All of present and future United States registered copyrights and copyright registrations, including, without limitation, the
  registered copyrights, maskworks, software, computer programs and other works of authorship subject to United States copyright protection listed in Exhibit A-1 to this Agreement (and including all of the exclusive rights afforded a copyright registrant in the United States under 17 U.S.C.
  §106 and any exclusive rights which may in the future arise by act of Congress or otherwise) and all present and future applications for copyright registrations (including
  applications for copyright registrations of derivative works and compilations) (collectively, the “Registered Copyrights”), and any and all royalties, payments, and other amounts payable to Grantor in connection with the Registered Copyrights, together with all renewals and extensions of the Registered Copyrights, the right to recover for all past,
  present, and future infringements of the Registered Copyrights, and all computer programs, computer databases, computer program flow diagrams, source codes, object codes and all tangible property embodying or incorporating the Registered Copyrights,
  and all other rights of every kind whatsoever accruing thereunder or pertaining thereto.

          (b) All present and future copyrights, maskworks, software, computer programs and other works of authorship subject to (or
capable of becoming subject to) United States copyright protection which are not registered in the United States Copyright Office (the “Unregistered

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Copyrights”), whether now owned or hereafter acquired, including without limitation the Unregistered Copyrights
listed in Exhibit A-2 to this Agreement, and any and all royalties, payments, and other amounts payable to Grantor in
connection with the Unregistered Copyrights, together with all renewals and extensions of the Unregistered Copyrights, the right to recover for all past, present, and future infringements of the Unregistered Copyrights, and all computer programs,
computer databases, computer program flow diagrams, source codes, object codes and all tangible property embodying or incorporating the Unregistered Copyrights, and all other rights of every kind whatsoever accruing thereunder or pertaining thereto.
The Registered Copyrights and the Unregistered Copyrights collectively are referred to herein as the “Copyrights.” 

          (c) All right, title and interest in and to any and all present and future license agreements with respect to the
  Copyrights.

          (d) All present and future accounts, accounts receivable, royalties, and other rights to payment arising from, in
connection with or relating to the Copyrights. 

          (e) All patents, patent applications and like protections including, without limitation, improvements, divisions,
continuations, renewals, reissues, extensions and continuations-in-part of the same, including without limitation the patents and patent applications set forth on Exhibit
B attached hereto (collectively, the “Patents”);

          (f) All trademark and servicemark rights, whether registered or not, applications to register and registrations of the same
  and like protections, and the entire goodwill of the business of Grantor connected with and symbolized by such trademarks, including without limitation those set forth on Exhibit
  C attached hereto (collectively, the “Trademarks”);

          (g) Any and all claims for damages by way of past, present and future infringements of any of the rights included above,
    with the right, but not the obligation, to sue for and collect such damages for said use or infringement of the rights identified above; 

          (h) All
      licenses or other rights to use any of the Copyrights, Patents or Trademarks, and all license fees and royalties arising from such use to the extent permitted by such license or rights; 

          (i) All amendments, extensions, renewals and extensions of any of the Copyrights, Trademarks or Patents; and 

          (j) All proceeds and products of the foregoing, including without limitation all payments under insurance or any indemnity or warranty payable in respect of any of the foregoing, and all license royalties and proceeds of infringement suits,
          and all rights corresponding to the foregoing throughout the world and all re-issues, divisions continuations, renewals, extensions and continuations-in-part of the foregoing. 

     2. Loan Agreement.  This security interest is granted
in conjunction with the security interest granted to Secured Party under the Loan Agreement. The rights and remedies of Secured Party with respect to the security interest granted hereby are in addition to those set forth in the Loan Agreement and
the other Loan Documents, and those which are now or hereafter available to Secured Party as a matter of law or equity. Each right, power and remedy of Secured Party provided for herein or in the Loan Agreement or any of the other Loan Documents, or
now or hereafter existing at law or in equity shall be cumulative and concurrent and shall be in addition to every right, power or remedy provided for herein and the exercise by Secured Party of any one or more of the rights, powers or remedies
provided for in this Agreement, the Loan Agreement or any of the other Loan Documents, or

-2-

now or hereafter existing at law or in equity, shall not preclude the simultaneous or later exercise by any person, including Secured Party, of any or all other rights, powers or remedies.

     3. Covenants and Warranties. Grantor represents,
warrants, covenants and agrees as follows: 

          (a) Grantor has no present maskworks, software, computer programs and other works of authorship
  registered with the United States Copyright Office except as disclosed on Exhibit A-1 hereto.

          (b) Grantor shall undertake all reasonable measures to cause its employees, agents and independent contractors to assign
to Grantor all rights of authorship to any copyrighted material in which Grantor has or may subsequently acquire any right or interest.

          (c) Grantor shall promptly advise Secured Party of any registered Trademark, Patent or Copyright not specified in this
Agreement, which is hereafter acquired by Grantor. 

          (d) Grantor shall not register any maskworks, software, computer programs or other works of authorship subject to United
States copyright protection with the United States Copyright Office without first complying with the following: (i) provide Secured Party with at least fifteen (15) days prior written notice of its intent to register such copyrights or mask works
together with a copy of the application it intends to file with the United States Copyright Office (excluding exhibits thereto), (ii) execute an Intellectual Property security agreement, a supplement hereto or such other documents as Secured Party
may reasonably request to maintain the perfection and priority of Secured Party’s security interest in the copyrights or mask works intended to be registered with the United States Copyright Office, and (iii) record such Intellectual Property
security agreement or supplement hereto with the United States Copyright Office contemporaneously with filing the copyright or mask work application(s) with the United States Copyright Office. Grantor shall promptly provide to Secured Party a copy
of the application(s) filed with the United States Copyright Office together with evidence of the recording of the Intellectual Property security agreement or supplement hereto necessary for Secured Party to maintain the perfection and priority of
its security interest in such copyrights or mask works. Grantor shall provide written notice to Secured Party of any application filed by Grantor in the United States Patent and Trademark Office for a patent or to register a trademark or service
mark within thirty (30) days after any such filing. 

     4. General. In any action or proceeding between
Grantor and Secured Party arising out of or relating to this Agreement, the prevailing party shall be entitled to recover its reasonable attorneys’ and other costs and expenses incurred, in addition to any other relief to which it may be
entitled. All amendments to this Agreement must be in writing signed by both Secured Party and Grantor.  This Agreement may be executed in any number of counterparts and by different parties on separate counterparts, each of which, when executed and
delivered, are an original, and all taken together, constitute one Agreement.  To the extent that any provision of this Agreement conflicts with any provision of the Loan Agreement, the provision giving Secured Party greater rights or remedies shall
govern, it being understood that the purpose of this Agreement is to add to, and not detract from, the rights granted to Secured Party under the Loan Agreement. This Agreement, the Loan Agreement and the other Loan Documents represent the entire
agreement about this subject matter and supersede prior negotiations or agreements.  All prior agreements, understandings, representations, warranties, and negotiations between the parties about the subject matter of this Agreement, the Loan
Agreement and the other Loan Documents merge into this Agreement, the Loan Agreement and the other Loan Documents. 

-3-

     5. Choice Of Law, Venue and Jury Trial Waiver.
California law governs this Agreement without regard to principles of conflicts of law. Grantor and Secured Party each submit to the exclusive jurisdiction of the State and Federal courts in Santa Clara County, California; provided, however, that
nothing in this Agreement shall be deemed to operate to preclude Secured Party from bringing suit or taking other legal action in any other jurisdiction to realize on the Collateral or any other security for the Obligations, or to enforce a judgment
or other court order in favor of Secured Party. Grantor expressly submits and consents in advance to such jurisdiction in any action or suit commenced in any such court, and Grantor hereby waives any objection that it may have based upon lack of
personal jurisdiction, improper venue, or forum non conveniens and hereby consents to the granting of such legal or equitable relief as is deemed appropriate by such court. Grantor hereby waives personal service of the summons, complaints, and other
process issued in such action or suit and agrees that service of such summons, complaints, and other process may be made by registered or certified mail addressed to Grantor at the address set forth in Section 9 of the Guaranty and that service so
made shall be deemed completed upon the earlier to occur of Grantor’s actual receipt thereof or three (3) days after deposit in the U.S. mails, proper postage prepaid. 

     TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW GRANTOR AND SECURED PARTY EACH WAIVE THEIR RIGHT TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION ARISING OUT OF OR
BASED UPON THIS AGREEMENT, INCLUDING CONTRACT, TORT, BREACH OF DUTY AND ALL OTHER CLAIMS. THIS WAIVER IS A MATERIAL INDUCEMENT FOR BOTH PARTIES TO ENTER INTO THIS AGREEMENT. EACH PARTY HAS REVIEWED THIS WAIVER WITH ITS COUNSEL. 

     WITHOUT INTENDING IN ANY WAY TO LIMIT THE PARTIES’ AGREEMENT TO WAIVE THEIR RESPECTIVE RIGHT TO A TRIAL BY JURY, if the above waiver of the right to a trial by
jury is not enforceable, the parties hereto agree that any and all disputes or controversies of any nature between them arising at any time shall be decided by a reference to a private judge, mutually selected by the parties (or, if they cannot
agree, by the Presiding Judge of the Santa Clara County, California Superior Court) appointed in accordance with California Code of Civil Procedure Section 638 (or pursuant to comparable provisions of federal law if the dispute falls within the
exclusive jurisdiction of the federal courts), sitting without a jury, in Santa Clara County, California; and the parties hereby submit to the jurisdiction of such court. The reference proceedings shall be conducted pursuant to and in accordance
with the provisions of California Code of Civil Procedure §§ 638 through 645.1, inclusive. The private judge shall have the power, among others, to grant provisional relief, including without limitation, entering temporary restraining
orders, issuing preliminary and permanent injunctions and appointing receivers. All such proceedings shall be closed to the public and confidential and all records relating thereto shall be permanently sealed. If during the course of any dispute, a
party desires to seek provisional relief, but a judge has not been appointed at that point pursuant to the judicial reference procedures, then such party may apply to the Santa Clara County, California Superior Court for such relief. The proceeding
before the private judge shall be conducted in the same manner as it would be before a court under the rules of evidence applicable to judicial proceedings. The parties shall be entitled to discovery which shall be conducted in the same manner as it
would be before a court under the rules of discovery applicable to judicial proceedings. The private judge shall oversee discovery and may enforce all discovery rules and order applicable to judicial proceedings in the same manner as a trial court
judge. The parties agree that the selected or appointed private judge shall have the power to decide all issues in the action or proceeding, whether of fact or of law, and shall report a statement of decision thereon pursuant to the California Code
of Civil Procedure § 644(a). Nothing in this paragraph shall limit the right of any party at any time to exercise self-help remedies, foreclose against collateral, or obtain provisional remedies.  The private judge shall also determine all
issues relating to the applicability, interpretation, and enforceability of this paragraph. 

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     6. Name Change of Pete Acquisition to UCT Sieger Engineering LLC.  Substantially simultaneously with the consummation of the Acquisition, the name of Pete Acquisition LLC shall be changed to UCT Sieger Engineering LLC by filing such name change with the Secretary of State of the State of Delaware.
From and after such time, all references to Sieger shall mean UCT Sieger Engineering LLC, a Delaware limited liability company. 

[Signature Page Follows]

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     IN WITNESS WHEREOF, the parties have caused this Intellectual Property Security Agreement to be duly executed by its officers thereunto duly authorized as of the
first date written above. 

	
Address of Grantor:
		
          Grantor:
	
	 	 	 
	
150 Independence Drive
		
          ULTRA CLEAN HOLDINGS, INC.
	
	
Menlo Park, CA 94025
		 
		 

	
	 

		By:
		/s/
          Jack Sexton 
	 	 	

	 

		
          Name:
          Jack Sexton 	
	 

		
          Title:
            Chief Financial
          Officer 	
	 	 	 
	 	 	 
	
Address of Secured Party:
		
          Secured Party:
	
	 	 	 
	
3979 Freedom Circle, Suite 600
		
          SILICON VALLEY BANK
	
	
Santa Clara, CA 95054
		 
		 

	
	 

		By:
		/s/
          Maria Fischer Leaf
	 	 	

	 

		
Name:
Maria Fischer Leaf	
	 

		
     Title:
	  Senior Relationship
	Manager 

EXHIBIT A-1

REGISTERED COPYRIGHTS 

(including copyrights that are the subject of an application for registration)

	
Description
		 
		
Registration/
		 
		
Registration/
	
	 

		 
		
Application
		 
		
Application
	
	 

		 
		
Number
		 
		
Date
	

EXHIBIT A-2 

UNREGISTERED COPYRIGHTS

EXHIBIT B 

PATENTS 

	
Description
		 
		
Registration/
		 
		
Registration/
	
	 

		 
		
Application
		 
		
Application
	
	 

		 
		
Number
		 
		
Date
	
	 	 	 	 	 
	
Gas-panel assembly
		 
		
7,048,008
		 
		
05/23/2006
	
	 

		 
		
20050224121
		 
		 

	
	
Gas-panel assembly
		 
		 

		 
		
04/13/2005
	
	 

		 
		
(Serial No.
		 
		 

	
	 

		 
		
11/105730)
		 
		 

	
	
Gas panel assembly
		 
		
11/219,101
		 
		
09/01/05
	
	
Gas panel assembly
		 
		
11/219,105
		 
		
09/01/05
	
	
Gas panel assembly
		 
		
PCT Application WO
		 
		
04/13/05
	
	 

		 
		
2005/100833A1
		 
		 

	

EXHIBIT C 

TRADEMARKS 

	
Description
		 
		
Registration/
		 
		
Registration/
	
	 

		 
		
Application
		 
		
Application
	
	 

		 
		
Number
		 
		
DateExhibit 10.6

EXECUTION COPY

INTELLECTUAL PROPERTY SECURITY AGREEMENT

     This Intellectual Property Security Agreement is entered into as of June 29, 2006 by and between SILICON VALLEY BANK, a California corporation
(“Secured Party”) and ULTRA CLEAN TECHNOLOGY SYSTEMS AND SERVICE, INC., a California corporation
(“Grantor”). 

RECITALS

     A. Grantor, Bob Acquisition
Inc. (and any successor by merger), a California corporation (“Bob”),
and Pete Acquisition LLC (to be renamed UCT Sieger Engineering LLC), a Delaware
limited liability company (“Sieger”,
together with Grantor and Bob, each a “Borrower” and
collectively, “Borrowers”)
and Secured Party, are entering into that certain Loan and Security Agreement
dated of even date herewith (as the same may be amended, modified or supplemented
from time to time, the “Loan Agreement”;
capitalized terms used herein which are not defined, have the meanings set forth
in the Loan Agreement). 

     B. Pursuant to the terms of the Loan Agreement, Grantor has granted to Secured Party a security interest in all of Grantor’s right, title and interest, whether
presently existing or hereafter acquired, in, to all Intellectual Property and all other Collateral. 

     NOW, THEREFORE, as collateral security for the payment and performance when due of all of the Obligations, Grantor hereby grants, represents, warrants, covenants and
agrees as follows: 

AGREEMENT

       1. Grant of Security Interest. To
  secure all of the Obligations, Grantor grants and pledges to Secured Party
  a security interest in all of Grantor’s right, title and interest in,
  to and under its Intellectual Property (as defined in the Loan Agreement),
including without limitation the following:

     (a) All of present and future United States registered copyrights and copyright registrations, including, without limitation, the
  registered copyrights, maskworks, software, computer programs and other works of authorship subject to United States copyright protection listed in Exhibit A-1 to this Agreement (and including all of the exclusive rights afforded a copyright registrant in the United States under 17 U.S.C.
  §106 and any exclusive rights
  which may in the future arise by act of Congress or otherwise) and all present
  and future applications for copyright registrations (including applications for
  copyright registrations of derivative works and compilations) (collectively,
  the “Registered Copyrights”), and any and all royalties,
  payments, and other amounts payable to Grantor in connection with the Registered
  Copyrights, together with all renewals and extensions of the Registered Copyrights,
  the right to recover for all past, present, and future infringements of the Registered
  Copyrights, and all computer programs, computer databases, computer program flow
  diagrams, source codes, object codes and all tangible property embodying or incorporating
  the Registered Copyrights, and all other rights of every kind whatsoever accruing
  thereunder or pertaining thereto.

       (b) All
  present and future copyrights, maskworks, software, computer programs and other
  works of authorship subject to (or capable of becoming subject to) United States
  copyright protection which are not registered in the United States Copyright
  Office (the “Unregistered
Copyrights”), whether
now owned or hereafter acquired, including without limitation the Unregistered
Copyrights listed in Exhibit A-2 to this Agreement, and any and all royalties, payments, and other amounts payable to Grantor in connection with the Unregistered Copyrights, together with all
renewals and extensions of the Unregistered Copyrights, the right to recover for all past, present, and future infringements of the Unregistered Copyrights, and all computer programs, computer databases, computer

-1-

program flow diagrams, source codes, object codes and all tangible property embodying or incorporating the Unregistered Copyrights, and all other rights of every kind whatsoever accruing
thereunder or pertaining thereto. The Registered Copyrights and the Unregistered Copyrights collectively are referred to herein as the “Copyrights.”

     (c) All right, title and interest in and to any and all present and future license agreements with
  respect to the Copyrights.

     (d) All present and future accounts, accounts receivable, royalties, and other rights to payment arising from, in
connection with or relating to the Copyrights.

       (e) All patents, patent applications and like protections including, without limitation, improvements, divisions,
  continuations, renewals, reissues, extensions and continuations-in-part of the same, including without limitation the patents and patent applications set forth on Exhibit
  B attached hereto (collectively, the “Patents”); 

     (f) All trademark and servicemark rights, whether registered or not, applications to register and registrations of the same
    and like protections, and the entire goodwill of the business of Grantor connected with and symbolized by such trademarks, including without limitation those set forth on Exhibit
    C attached hereto (collectively, the “Trademarks”);

     (g) Any and all claims for damages by way of past, present and future infringements of any of the rights included above,
      with the right, but not the obligation, to sue for and collect such damages for said use or infringement of the rights identified above;

     (h) All
        licenses or other rights to use any of the Copyrights, Patents or Trademarks, and all license fees and royalties arising from such use to the extent permitted by such license or rights; 

     (i) All amendments, extensions, renewals and extensions of any of the Copyrights, Trademarks or Patents; and 

     (j) All proceeds and products of the foregoing, including without limitation all payments under insurance or any indemnity or warranty payable in respect of any of the foregoing, and all license royalties and proceeds of infringement suits,
          and all rights corresponding to the foregoing throughout the world and all re-issues, divisions continuations, renewals, extensions and continuations-in-part of the foregoing. 

     2. Loan Agreement.  This security interest is granted
in conjunction with the security interest granted to Secured Party under the Loan Agreement. The rights and remedies of Secured Party with respect to the security interest granted hereby are in addition to those set forth in the Loan Agreement and
the other Loan Documents, and those which are now or hereafter available to Secured Party as a matter of law or equity. Each right, power and remedy of Secured Party provided for herein or in the Loan Agreement or any of the other Loan Documents, or
now or hereafter existing at law or in equity shall be cumulative and concurrent and shall be in addition to every right, power or remedy provided for herein and the exercise by Secured Party of any one or more of the rights, powers or remedies
provided for in this Agreement, the Loan Agreement or any of the other Loan Documents, or now or hereafter existing at law or in equity, shall not preclude the simultaneous or later exercise by any person, including Secured Party, of any or all
other rights, powers or remedies. 

-2-

       3. Covenants and Warranties. Grantor represents,
warrants, covenants and agrees as follows: 

     (a) Grantor has no present maskworks, software, computer programs and other works of authorship
  registered with the United States Copyright Office except as disclosed on Exhibit A-1 hereto.

     (b) Grantor shall undertake all reasonable measures to cause its employees, agents and independent contractors to assign
to Grantor all rights of authorship to any copyrighted material in which Grantor has or may subsequently acquire any right or interest.

        (c) Grantor shall promptly advise Secured Party of any registered Trademark, Patent or Copyright not specified in this
Agreement, which is hereafter acquired by Grantor. 

        (d) Grantor
  shall not register any maskworks, software, computer programs or other works
  of authorship subject to United States copyright protection with the United
  States Copyright Office without first complying with the following: (i) provide
  Secured Party with at least fifteen (15) days prior written notice of its intent
  to register such copyrights or mask works together with a copy of the application
  it intends to file with the United States Copyright Office (excluding exhibits
  thereto), (ii) execute an Intellectual Property security agreement, a supplement
  hereto or such other documents as Secured Party may reasonably request to maintain
  the perfection and priority of Secured Party’s security interest in the
  copyrights or mask works intended to be registered with the United States Copyright
  Office, and (iii) record such Intellectual Property security agreement or supplement
  hereto with the United States Copyright Office contemporaneously with filing
  the copyright or mask work application(s) with the United States Copyright
  Office. Grantor shall promptly provide to Secured Party a copy of the application(s)
  filed with the United States Copyright Office together with evidence of the
  recording of the Intellectual Property security agreement or supplement hereto
  necessary for Secured Party to maintain the perfection and priority of its
  security interest in such copyrights or mask works. Grantor shall provide written
  notice to Secured Party of any application filed by Grantor in the United States
  Patent and Trademark Office for a patent or to register a trademark or service
mark within thirty (30) days after any such filing. 

       4. General.
  In any action or proceeding between Grantor and Secured Party arising out of
  or relating to this Agreement, the prevailing party shall be entitled to recover
  its reasonable attorneys’ and other costs and expenses incurred, in addition
  to any other relief to which it may be entitled. All amendments to this Agreement
  must be in writing signed by both Secured Party and Grantor. This Agreement
  may be executed in any number of counterparts and by different parties on separate
  counterparts, each of which, when executed and delivered, are an original,
  and all taken together, constitute one Agreement. To the extent that any provision
  of this Agreement conflicts with any provision of the Loan Agreement, the provision
  giving Secured Party greater rights or remedies shall govern, it being understood
  that the purpose of this Agreement is to add to, and not detract from, the
  rights granted to Secured Party under the Loan Agreement. This Agreement, the
  Loan Agreement and the other Loan Documents represent the entire agreement
  about this subject matter and supersede prior negotiations or agreements. All
  prior agreements, understandings, representations, warranties, and negotiations
  between the parties about the subject matter of this Agreement, the Loan Agreement
  and the other Loan Documents merge into this Agreement, the Loan Agreement
and the other Loan Documents. 

       5. Choice Of Law, Venue and Jury Trial Waiver.
California law governs this Agreement without regard to principles of conflicts of law. Grantor and Secured Party each submit to the exclusive jurisdiction of the State and Federal courts in Santa Clara County, California; provided, however,
that

-3-

  nothing
  in this Agreement shall be deemed to operate to preclude Secured Party from
  bringing suit or taking other legal action in any other jurisdiction to realize
  on the Collateral or any other security for the Obligations, or to enforce
  a judgment or other court order in favor of Secured Party. Grantor expressly
  submits and consents in advance to such jurisdiction in any action or suit
  commenced in any such court, and Grantor hereby waives any objection that it
  may have based upon lack of personal jurisdiction, improper venue, or forum
  non conveniens and hereby consents to the granting of such legal or equitable
  relief as is deemed appropriate by such court. Grantor hereby waives personal
  service of the summons, complaints, and other process issued in such action
  or suit and agrees that service of such summons, complaints, and other process
  may be made by registered or certified mail addressed to Grantor at the address
  set forth in Section 10 of the Loan Agreement and that service so made shall
  be deemed completed upon the earlier to occur of Grantor’s actual receipt
thereof or three (3) days after deposit in the U.S. mails, proper postage prepaid. 

       TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW GRANTOR AND SECURED PARTY EACH WAIVE THEIR RIGHT TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION ARISING OUT OF OR
BASED UPON THIS AGREEMENT, INCLUDING CONTRACT, TORT, BREACH OF DUTY AND ALL OTHER CLAIMS. THIS WAIVER IS A MATERIAL INDUCEMENT FOR BOTH PARTIES TO ENTER INTO THIS AGREEMENT. EACH PARTY HAS REVIEWED THIS WAIVER WITH ITS COUNSEL. 

       WITHOUT
  INTENDING IN ANY WAY TO LIMIT THE PARTIES’ AGREEMENT TO WAIVE THEIR RESPECTIVE RIGHT TO A TRIAL BY JURY, if the above waiver of the right to a trial by
jury is not enforceable, the parties hereto agree that any and all disputes or controversies of any nature between them arising at any time shall be decided by a reference to a private judge, mutually selected by the parties (or, if they cannot
agree, by the Presiding Judge of the Santa Clara County, California Superior Court) appointed in accordance with California Code of Civil Procedure Section 638 (or pursuant to comparable provisions of federal law if the dispute falls within the
exclusive jurisdiction of the federal courts), sitting without a jury, in Santa Clara County, California; and the parties hereby submit to the jurisdiction of such court. The reference proceedings shall be conducted pursuant to and in accordance
with the provisions of California Code of Civil Procedure §§ 638 through 645.1, inclusive. The private judge shall have the power, among others, to grant provisional relief, including without limitation, entering temporary restraining
orders, issuing preliminary and permanent injunctions and appointing receivers. All such proceedings shall be closed to the public and confidential and all records relating thereto shall be permanently sealed. If during the course of any dispute, a
party desires to seek provisional relief, but a judge has not been appointed at that point pursuant to the judicial reference procedures, then such party may apply to the Santa Clara County, California Superior Court for such relief. The proceeding
before the private judge shall be conducted in the same manner as it would be before a court under the rules of evidence applicable to judicial proceedings. The parties shall be entitled to discovery which shall be conducted in the same manner as it
would be before a court under the rules of discovery applicable to judicial proceedings. The private judge shall oversee discovery and may enforce all discovery rules and order applicable to judicial proceedings in the same manner as a trial court
judge. The parties agree that the selected or appointed private judge shall have the power to decide all issues in the action or proceeding, whether of fact or of law, and shall report a statement of decision thereon pursuant to the California Code
of Civil Procedure § 644(a). Nothing in this paragraph shall limit the right
of any party at any time to exercise self-help remedies, foreclose against collateral,
or obtain provisional remedies. The private judge shall also determine all issues
relating to the applicability, interpretation, and enforceability of this paragraph. 

       6. Name Change of Pete Acquisition to UCT Sieger Engineering LLC.  Substantially simultaneously with the consummation of the Acquisition, the name of Pete Acquisition LLC shall be changed to UCT Sieger Engineering LLC by filing such name change with the Secretary of State of the

-4- 

State of Delaware. From and after such time, all references to Sieger shall mean UCT Sieger Engineering LLC, a Delaware limited liability company. 

[Signature Page Follows]

-5-

     IN WITNESS WHEREOF, the parties have caused this Intellectual Property Security Agreement to be duly executed by its officers thereunto duly authorized as of the
first date written above. 

	 Address
                    of Grantor: 	 Grantor: 
	 	 	 
	 150
                    Independence Drive 	 ULTRA
          CLEAN TECHNOLOGY SYSTEMS          
	 Menlo
                    Park, CA 94025 	AND
          SERVICES, INC.  
	 	 	 
	  	By: 	/s/
                    Jack Sexton 
	 	 	

	  	 Name: Jack
                    Sexton  
	  	 Title:   Chief
                    Financial Officer  
	 	 	 
	 	 	 
	 Address
                    of Secured Party: 	 Secured
                    Party: 
	 	 	 
	 3979
                    Freedom Circle, Suite 600 	 SILICON
                    VALLEY BANK 
	 Santa
                    Clara, CA 95054 	  	  
	  	By: 	/s/
                    Maria Fischer Leaf
	 	 	

	  	 Name: Maria
                    Fischer Leaf 
	  	 Title:   Senior
                    Relationship Manager 

EXHIBIT A-1

REGISTERED COPYRIGHTS

(including copyrights that are the subject of an application for registration)

	
Description
		 
		
Registration/
		 
		
Registration/
	
	 

		 
		
Application
		 
		
Application
	
	 

		 
		
Number
		 
		
Date
	

EXHIBIT A-2 

UNREGISTERED COPYRIGHTS

EXHIBIT B 

PATENTS 

	
Description
		 
		
Registration/	 
		
Registration/
	 

		 
		
Application	 
		
Application
	 

		 
		
Number	 
		
Date
	 	 	 	 	 
	
Welding method for forming chromium oxide passivated
		 
		
6,172,320
		 
		
01/09/2001
	
	
film at welded portion
		 
		 

		 
		 

	
	 	 	 	 	 
	
Welding method for forming chromium oxide passivated
		 
		
6,518,534
		 
		
02/11/2003
	
	
film at welded portion
		 
		 

		 
		 

	
	 	 	 	 	 
	
Method and apparatus for removing leaking gas in an
		 
		
6,142,164
		 
		
11/07/2000
	
	
integrated gas panel system
		 
		 

		 
		 

	
	 	 	 	 	 
	
Automated tube cutting apparatus and method
		 
		
6,112,132
		 
		
08/29/2000
	
	 	 	 	 	 
	
Catalytic reactor apparatus and method for generating
		 
		
10/219,988
		 
		
08/13/2002
	
	
high purity water vapor
		 
		 

		 
		 

	

 

 EXHIBIT C 

 TRADEMARKS 

	
Description
		 
		 

		 
		
Registration/
		 
		
Registration/
	
	 

		 
		 

		 
		
Application
		 
		
Application
	
	 

		 
		 

		 
		
Number
		 
		
Date
	
	
Ultra Clean Technology
		 
		 

		 
		
2,152,652
		 
		
04/21/1998

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