<?xml version="1.0"?>
<!-- - EDGAR Ease Plus 1.0                                   07/25/03  TT    -->
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>
   <periodOfReport>2003-12-16</periodOfReport>
   <notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0001261686</issuerCik>
        <issuerName>NPTEST HOLDING CORP</issuerName>
        <issuerTradingSymbol>NPTT</issuerTradingSymbol>
   </issuer>
   <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001122021</rptOwnerCik>
            <rptOwnerName>FRANCISCO PARTNERS LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2882 SAND HILL ROAD, SUITE 280</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MENLO PARK</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94025</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
         <isDirector>0</isDirector>
         <isOfficer>0</isOfficer>
         <isTenPercentOwner>1</isTenPercentOwner>
         <isOther>0</isOther>
      </reportingOwnerRelationship>
   </reportingOwner>
 <nonDerivativeTable>
   <nonDerivativeTransaction>
      <securityTitle>
         <value>Common Stock</value>
      </securityTitle>
      <transactionDate>
         <value>2003-12-16</value>
      </transactionDate>
      <transactionCoding>
         <transactionFormType>4</transactionFormType>
         <transactionCode>J</transactionCode>
         <equitySwapInvolved>0</equitySwapInvolved>
            <footnoteId id="F1"/>
      </transactionCoding>
      <transactionAmounts>
         <transactionShares>
           <value>19761573</value>
         </transactionShares>
         <transactionPricePerShare>
            <footnoteId id="F1"/>
         </transactionPricePerShare>
         <transactionAcquiredDisposedCode>
           <value>A</value>
         </transactionAcquiredDisposedCode>
      </transactionAmounts>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>25379550</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
            <value>I</value>
         </directOrIndirectOwnership>
         <natureOfOwnership>
            <value>See footnote.</value>
            <footnoteId id="F2"/>
         </natureOfOwnership>
      </ownershipNature>
   </nonDerivativeTransaction>
   <nonDerivativeTransaction>
      <securityTitle>
         <value>Series B Preferred Stock</value>
      </securityTitle>
      <transactionDate>
         <value>2003-12-16</value>
      </transactionDate>
      <transactionCoding>
         <transactionFormType>4</transactionFormType>
         <transactionCode>J</transactionCode>
         <equitySwapInvolved>0</equitySwapInvolved>
            <footnoteId id="F1"/>
      </transactionCoding>
      <transactionAmounts>
         <transactionShares>
           <value>50000</value>
         </transactionShares>
         <transactionPricePerShare>
           <value>1031</value>
         </transactionPricePerShare>
         <transactionAcquiredDisposedCode>
           <value>A</value>
         </transactionAcquiredDisposedCode>
      </transactionAmounts>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>50000</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
            <value>I</value>
         </directOrIndirectOwnership>
         <natureOfOwnership>
            <value>See footnote.</value>
            <footnoteId id="F2"/>
         </natureOfOwnership>
      </ownershipNature>
   </nonDerivativeTransaction>
   <nonDerivativeTransaction>
      <securityTitle>
         <value>Series B Preferred Stock</value>
      </securityTitle>
      <transactionDate>
         <value>2003-12-16</value>
      </transactionDate>
      <transactionCoding>
         <transactionFormType>4</transactionFormType>
         <transactionCode>J</transactionCode>
         <equitySwapInvolved>0</equitySwapInvolved>
            <footnoteId id="F1"/>
      </transactionCoding>
      <transactionAmounts>
         <transactionShares>
           <value>50000</value>
         </transactionShares>
         <transactionPricePerShare>
           <value>1031</value>
         </transactionPricePerShare>
         <transactionAcquiredDisposedCode>
           <value>D</value>
         </transactionAcquiredDisposedCode>
      </transactionAmounts>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>0</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
            <value>I</value>
         </directOrIndirectOwnership>
         <natureOfOwnership>
            <value>See footnote.</value>
            <footnoteId id="F2"/>
         </natureOfOwnership>
      </ownershipNature>
   </nonDerivativeTransaction>
   <nonDerivativeTransaction>
      <securityTitle>
         <value>Series A Preferred Stock</value>
      </securityTitle>
      <transactionDate>
         <value>2003-12-16</value>
      </transactionDate>
      <transactionCoding>
         <transactionFormType>4</transactionFormType>
         <transactionCode>J</transactionCode>
         <equitySwapInvolved>0</equitySwapInvolved>
            <footnoteId id="F1"/>
      </transactionCoding>
      <transactionAmounts>
         <transactionShares>
           <value>68000</value>
         </transactionShares>
         <transactionPricePerShare>
           <value>1035</value>
         </transactionPricePerShare>
         <transactionAcquiredDisposedCode>
           <value>D</value>
         </transactionAcquiredDisposedCode>
      </transactionAmounts>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>0</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
            <value>I</value>
         </directOrIndirectOwnership>
         <natureOfOwnership>
            <value>See footnote.</value>
            <footnoteId id="F2"/>
         </natureOfOwnership>
      </ownershipNature>
   </nonDerivativeTransaction>
 </nonDerivativeTable>
   <footnotes>
      <footnote id="F1"> The preferred stock was exchanged for a combination of cash and common stock pursuant to mergers exempt from Section 16(b) of the Exchange Act pursuant to Rule 16b-7 thereof. The number of shares of common stock was determined based on the conversion ratio of the preferred stock or the accreted value of the preferred stock and the IPO price, as applicable.</footnote>

      <footnote id="F2"> The shares reported herein are directly beneficially owned by NPTest Holding, LLC, of which Francisco Partners, L.P. is the managing member. Francisco Partners, L.P. disclaims beneficial ownership of the shares reported herein except to the extent of its pecuniary interests therein.</footnote>
   </footnotes>
   <remarks>This form is filed on behalf of Francisco Partners, L.P. and its general partner, Francisco Partners GP, LLC.</remarks>
   <ownerSignature>
      <signatureName>Gerald Morgan, as managing member of Francisco Partners GP, LLC</signatureName>
      <signatureDate>2003-12-17</signatureDate>
   </ownerSignature>
</ownershipDocument>

