dfm知识点培训教材

DFM知识点培训教材DFM101PART1|DEC2008CELESTICACONFIDENTIALDFM101PART1CHANGESINV16UPDATEDTOREFLECTWITHCLSPCADFXGUIDEREV53DFM101PART1|DEC2008CELESTICACONFIDENTIALOBJECTIVEPROVIDEBASICTRAININGONPERFORMINGMANUALDFMINCLUDEDRELEVANTGUIDELINESFROMTHEDFXGUIDELINESDOCUMENTIDENTIFYWHICHCHECKLISTITEMSCANBEEVALUATEDUSINGVALOREXAMPLESOFDFMVIOLATIONSSOMEHANDSONDFMEXERCISESNOTINCLUDEDDFTANDDFADFMUSINGVALORIMPACTASSESSMENTOFVIOLATIONSDFM101OUTLINEDFM101PART1|DEC2008CONFIDENTIALAFTERTHESESSION,ATTENDEESSHOULDBEABLETODFM101OUTLINEMANUALLYIDENTIFYDFMVIOLATIONSINACUSTOMERSDESIGN,USINGTHEDFMCHECKLISTANDTHEPCADFXGUIDECREATEADFMREPORTFORTHECUSTOMERUSINGTHESTANDARDTEMPLATEDFM101PART1|DEC2008CELESTICACONFIDENTIALDFMREVIEWPROCESSDFM101PART1|DEC2008CELESTICACONFIDENTIALNOSINGLE“BEST”WAYTOAPPROACHADFMREVIEW,FINDYOUROWNPREFERREDMETHODTHROUGHEXPERIENCEDFMREVIEWPROCESSLARGEGREENARROWSHOWSTHESTEPTHATWILLCONSUMEABOUT95OFYOUREFFORTWHILEDOINGADFMANALYSISDFM101PART1|DEC2008CONFIDENTIALBACKGROUNDDEFINECONTEXTFORTHEREVIEWSERVICELEVELPRODUCT“CONTEXT”WHATISEXPECTEDBYTHECUSTOMEREGTURNAROUNDTIMEFORTHEREVIEW,LEVELOFDETAIL,ETCWHATTYPEOFPRODUCTISITEGLOWVOLUME/HIGHMIX,HIGHVOLUME/LOWMARGIN,HIGHRELIABILITY,CONSUMER,ETCWHATARETHECUSTOMERS“HOTBUTTONS”EGCOST,QUALITY,SCHEDULE,PRODUCTFUNCTIONALITY/PERFORMANCE,RELIABILITY,ETCDATAREVIEWWHATDESIGNINFORMATIONISAVAILABLETOINCLUDEINTHEREVIEWSHISTORYWHATPASTINFORMATIONISAVAILABLEEGPRODUCTIONDATA,PREVIOUSDFMREPORTSDFMREVIEWPROCESSDFM101PART1|DEC2008CELESTICACONFIDENTIALHIGHLEVELDESIGNDEFINEBASICMANUFACTURINGPROCESSTYPICALLYUSEBOM,ASSEMBLYDRAWING/OROUTERLAYERSLANDSLOOKFORPARTS/ISSUESTHATMAYINFLUENCETHEBASICPROCESSFLOWPTHPARTSCOMPLEXCONNECTORSTOPSIDEVSBACKSIDEDEFINEAPRELIMINARYASSEMBLYPROCESSFLOW,TOENSURETHATCORRECTGUIDELINESAREAPPLIEDDURINGLATERDETAILEDREVIEWPTHPARTSSELECTIVEWAVE,FULLWAVE,PASTEINHOLE,PRESSFIT,SELECTIVESOLDERSOFTBEAM,ERSA,ETCTEST/INSPECTSTRATEGYDEFINEAPRELIMINARYPANELIZATIONCONCEPT,TOOPTIMIZEMASTERPANELUTILIZATIONMEETASSEMBLYPANELREQUIREMENTSDFMREVIEWPROCESSDFM101PART1|DEC2008CONFIDENTIALDETAILEDDESIGNIDENTIFYSPECIFICVIOLATIONSGENERALPRIORITYUSEPREVIOUSDFMREPORTS,BOM,DESIGNFILE/ORGERBERFILES,ASSEMBLYDRAWING,PCBFABRICATIONDRAWING,MECHANICALASSEMBLYDRAWINGWORKTHROUGHCHECKLIST,REFERRINGTODFMGUIDELINESASREQUIREDTRANSFERITEMSFOUNDTODFMREPORT,IDENTIFYASHOT/WARM/COOLFOCUSDESIGNERSLIMITEDTIMEONTHEMOSTCRITICALITEMSPRIORITIZEANYADDITIONALDETAILEDWORKREQUIRED,EGIMPACTASSESSMENTALTERNATIVESKEEPCUSTOMERSPRIORITIESINMINDCOST,QUALITY,SCHEDULE,ETCREQUESTCLARIFICATIONORADDITIONALINFORMATIONFROMDESIGNER/ORSUPPLIERSIFREQUIREDDFMREVIEWPROCESSAGAIN,THISISWHEREMOSTOFTHEEFFORTWILLBECONCENTRATEDIMPORTANTTOMENTIONTHATTHEDESIGNERSTIMEISVERYCRITICAL,ANDTHEYAREONAVERYTIGHTTIMESCHEDULEWEWANTTOHELPOUTTHEDESIGNERSASMUCHASPOSSIBLEDFM101PART1|DEC2008CELESTICACONFIDENTIALIMPACTASSESSMENTQUANTIFYIMPACT,INORDEROFPRIORITYTIMECONSUMING,NOTMANYTOOLSAVAILABLEYETTOASSISTWITHTHISBUSINESSOFFICENEEDSTOSUPPORTPROVIDINGTHISFEEDBACKTOTHECUSTOMERINCORPORATINGITINTOPRODUCTQUOTING/PRICINGNEEDANOVERALLDFXBUSINESSMODELINPLACEWHOPAYSFORTHESERVICEWHOBENEFITSFROMIMPROVEMENTSIMPLEMENTEDINTHEDESIGNETCCOULDPROVIDEFORALLITEMS,ORONLYONITEMSTHATMAYNOTBEFIXEDDFMREVIEWPROCESSCURRENTLY,THECORPORATETEAMISINVOLVEDINAPROJECTFORAMODELTOAIDTHEENGINEERINCREATINGACOSTFORDFMVIOLATIONSWHICHWILLLATERBETURNEDINTOPRICEBYTHEBUSINESSOFFICEIFTHEENGINEERCANDOTHISWITHINTHEBOUNDSOFTHEIROWNSITE,ORWITHINTHEBOUNDSOFTHEIRCUSTOMERRELATIONSHIPTHISISPERFECTLYACCEPTABLEPROVIDEDALLCOSTS/PRICESAREAPPROVEDBYTHEBUSINESSOFFICE/PROGRAMMANAGEMENTDFM101PART1|DEC2008CELESTICACONFIDENTIALINVESTIGATEALTERNATIVESSPECIFICSUGGESTIONSFORCHANGESVERYTIMECONSUMING,SHOULDONLYBEPERFORMEDIFAPPROPRIATEASTIMEPERMITSSTARTWITHHIGHESTIMPACTISSUES,ORONESMOSTLIKELYTOHAVEANALTERNATIVETHATWECANSUGGESTDFMREVIEWPROCESSUSUALLYINCLUDESOTHERGROUPSANDOTHERENGINEERINGRESOURCESTHISTYPEOFACTIVITYMUSTHAVERESOURCESPLANNEDAHEADOFTIMEDFM101PART1|DEC2008CELESTICACONFIDENTIALDFMCHECKLISTDFM101PART1|DEC2008CELESTICACONFIDENTIALDATAHISTORYCOMPONENTSPROCESSFLOWPTHASSEMBLYSMTASSEMBLYLAYOUTSPACINGLANDPATTERNSSILKSCREENBOARDOUTLINEPCBFABRICATIONDRAWINGMECHANICALASSEMBLYNOTCOVEREDINTHISSESSIONDFMCHECKLISTTOPICSALLOFTHEITEMSONTHEDFMCHECKLISTARESEPARATEDINTOTHESESECTIONSFOREASEOFUSEDFM101PART1|DEC2008CONFIDENTIALDFMCHECKLISTTHEDFMCHECKLISTISUSEDTOENSURETHATACOMPREHENSIVEREVIEWISDONE,COVERINGALLIMPORTANTAREASEACHITEMONTHEDFMCHECKLISTSHOULDBEVERIFIEDONTHEDESIGNBEINGREVIEWED,EITHERUSINGVALORAUTOMATEDANALYSISORBYMANUALCHECKINGTHEDFMCHECKLISTISATOOLTOUSEDURINGTHEREVIEW,ITSHOULDNOTBEINCLUDEDINTHEDFMREPORTGIVENTOTHECUSTOMERDFM101PART1|DEC2008CONFIDENTIALHIGHERPRIORITYITEMSARESHOWNINBOLDTEXTIFTIMEISLIMITEDANDAFULLREVIEWCANNOTBEPERFORMED,THEHIGHERPRIORITYITEMSSHOULDBECOVEREDFIRSTREFERTOTHECLSDFXGUIDEFORDETAILEDGUIDELINESITEMSCOVEREDBYVALORAUTOMATEDANALYSISWILLLISTTHENAMEOFTHECHECK,EGC2TOEPITEMSNOTCOVEREDBYVALORAREMARKEDMANDMUSTBECHECKEDMANUALLYNOTETHEPRIORITYOFALINEITEMONTHECHECKLISTDOESNOTNECESSARILYCORRESPONDTOA“HOT/WARM/COOL”SEVERITYLEVELOFAPARTICULARISSUESEVERITYLEVELDEPENDSONTHESPECIFICISSUEFOUNDDFMCHECKLISTDFM101PART1|DEC2008CONFIDENTIALCHECKOFFEACHITEMASITISREVIEWED,TOENSUREALLITEMSARECOVEREDDURINGTHEREVIEWNOTESCANBEMADEDURINGTHEREVIEW,TOGATHERINFORMATIONFORWRITINGTHEDFMREPORTFORTHECUSTOMERTHECHECKLISTCANBEFILLEDINSOFTCOPYORHARDCOPYPRINTED,WHICHEVERISMORECONVENIENTISSUESFOUNDTHATARENOTCOVEREDINTHEDFMCHECKLISTSHOULDALSOBENOTEDANDINCLUDEDINTHEDFMREPORTFORTHECUSTOMERDFMCHECKLISTDFM101PART1|DEC2008CONFIDENTIALPUTTINGANXINTHESEBOXESWILLAUTOMATICALLYXTHEITEMSCOVEREDBYVALORANALYSISDFMCHECKLISTDFM101PART1|DEC2008CONFIDENTIALDATAHISTORYDFM101PART1|DEC2008CONFIDENTIALDATAHISTORYDFM101PART1|DEC2008CONFIDENTIALCADDATAINTELLIGENTANDAPPROPRIATEFORINPUTTOVALORAVLBOMWITHREFDESASSEMBLYDRAWINGSPCBFABRICATIONDRAWING,INCLUDINGOUTLINEDIMENSIONS,HOLESIZES/TOLERANCES,SURFACEFINISHCOMPONENTDRAWINGSOFCOMPLEXORUNIQUECOMPONENTSCUSTOMCOMPONENTINFORMATIONDFXGUIDE101DATAPACKAGEFORDFMMANUALCHECKDATAADEQUATEFORDFMREVIEWFORTHOSETAKINGTHEVALORCOURSE,WEWILLLOOKATDATAFORVALORINMOREDETAILINTHATCOURSEDFM101PART1|DEC2008CONFIDENTIALTHISWILLBECOVEREDINMOREDETAILSINTHECLSVALORDFMTRAININGSESSIONDATAADEQUATEFORDFMREVIEWFORTHOSETAKINGTHEVALORCOURSE,WEWILLLOOKATDATAFORVALORINMOREDETAILINTHATCOURSEDFM101PART1|DEC2008CONFIDENTIALIFANYDFMREVIEWSHAVEPREVIOUSLYBEENPERFORMEDONTHEBOARD,THEYSHOULDBEREVIEWEDAGAINFORTHENEWDESIGNIFTHESESTILLEXISTINTHENEWDESIGN,THEYSHOULDBEINCLUDEDINTHENEWDFMREPORTITEMSTHATWERENOTIMPLEMENTEDPREVIOUSLYMAYBECANDIDATESTOADDRESSINTHENEWDESIGNPREVIOUSDFMDFM101PART1|DEC2008CONFIDENTIALREVIEWANYEXISTINGPRODUCTIONPROBLEMSTODETERMINEIFANYAREDESIGNRELATEDQUALITYPROBLEMS,MAJORYIELDDETRACTORSOPERATIONTIMEADDERS,EGMANUALOPERATIONS,INEFFICIENTPROCESSFLOWSUPPLYCHAINPROBLEMS,EGCOMPONENTQUALITY,SINGLE/SOLESOURCEPARTS,DELIVERYPROBLEMSETCDESIGNRELATEDPRODUCTIONISSUESEXISTINGWIREADDSDOUBLESIDEDPTHTHATREQUIRESHANDSOLDER,ORSOLDERFOUNTAININEFFICIENTPANELIZATIONDFM101PART1|DEC2008CONFIDENTIALROHSRESTRICTIONOFHAZARDOUSSUBSTANCESAEUROPEANUNIONDIRECTIVE,EFFECTIVEFROMJULY2006BANS6MATERIALS,INCLUDINGLEADANDCERTAINBROMINATEDFLAMERETARDANTSAPPLIESTOABROADRANGEOFELECTRICALPRODUCTSSOMEEXEMPTIONSAPPLYCOVERSPRODUCTSBOTHMANUFACTUREDINORIMPORTEDINTOEUROPESIMILARLEGISLATIONCOVERINGOTHERREGIONSBEINGIMPLEMENTEDORUNDERDEVELOPMENTWHATISROHSROHS/PBFREECOMPLIANCEDFM101PART1|DEC2008CONFIDENTIALCOMPONENTSMUSTNOTCONTAINANYOFTHE6MATERIALSPROHIBITEDBYROHSMUSTMEETREQUIREMENTSFORHIGHYIELDPBFREEASSEMBLY,INCLUDINGCOMPATIBLESURFACEFINISH,HIGHERTEMPERATURERESISTANCEWITHMINIMALWARPING,ADEQUATEMSLRATINGSATPBFREEREFLOWTEMPERATURES,ADEQUATERELIABILITYAFTERPBFREEASSEMBLYALLCOMPONENTSMUSTBECLEARLYIDENTIFIEDASPBFREE,ROHSCOMPLIANT,ORROHSEXEMPTIFACOMPONENTCANNOTBECLEARLYIDENTIFIED,THENITCANNOTBEUSEDINROHSCOMPLIANTPRODUCTSPCBSMUSTNOTCONTAINANYOFTHE6MATERIALSPROHIBITEDBYROHSMUSTBECOMPATIBLEWITHPBFREEASSEMBLY,INCLUDINGCOMPATIBLESURFACEFINISH,HIGHERTEMPERATURERESISTANCEWITHMINIMALWARPING,ADEQUATERELIABILITYAFTERPBFREEASSEMBLYROHS/PBFREECOMPLIANCEDFM101PART1|DEC2008CONFIDENTIALTHECUSTOMERMUSTCLEARLYDEFINETHEPRODUCTREQUIREMENTSROHSCOMPLIANTORNOTASSEMBLEWITHSNPBORPBFREESOLDERTHECUSTOMERMUSTVERIFYTHATTHEBOMPCBARECOMPLIANTANDCOMPATIBLEWITHTHECHOSENASSEMBLYMANYCOMPONENTSINTENDEDFORSN/PBASSEMBLYARENOTFORWARDCOMPATIBLE,IEABLETOBEATTACHEDTOAPCBUSINGPBFREEASSEMBLYNOTALLCOMPONENTSINTENDEDFORPBFREEASSEMBLYAREBACKWARDCOMPATIBLE,IEABLETOBEATTACHEDTOAPCBUSINGSNPBASSEMBLYFOREXAMPLEPBFREESACBGASARENOTDROPINCOMPATIBLEWITHSTANDARDSNPBASSEMBLYTHEYCANPRODUCESATISFACTORYSOLDERJOINTSIFTHEREFLOWTMAXISGREATERTHAN227C,BUTTHISMAYCAUSEOTHERCOMPONENTSONTHEBOARDTOBEOVERHEATEDCLSGREENSERVICESCANASSISTTHECUSTOMERBYPROVIDINGBOMANALYSISTOVERIFYCOMPLIANCECOMPATIBILITYROHS/PBFREECOMPLIANCEDFM101PART1|DEC2008CONFIDENTIALCOMPONENTSDFM101PART1|DEC2008CONFIDENTIALCOMPONENTSDFM101PART1|DEC2008CONFIDENTIALEXAMPLESOFNEWCOMPONENTPACKAGESNEWADVANCEDPACKAGESBGAS,CSPSNEWCONNECTORSNEWODDFORMPARTS,EGRFCOMPONENTSLEADLESSCOMPONENTSNEWPACKAGESDFXGUIDEN/AMANUALCHECKDFM101PART1|DEC2008CONFIDENTIALINPRODUCTIONATTARGETSITEINPRODUCTIONATANOTHERSITE3PERFORMPROCESS/TECHNOLOGYTRANSFER12CREATEEXECUTEDEVELOPMENT/QUALIFICATIONPLAN234DEVELOPMENT/QUALIFICATIONREQUIRED3YNYNOKYOKN1CONSULTDOCUMENTSCELQ001PROC1293GLOBALPRODUCTTRANSFERPROCESSFORGUIDANCE2CONSULTDOCUMENTCELQ001SPEC16NEWTECHNOLOGYDEVELOPMENTANDQUALIFICATIONFORGUIDANCE3CONTACTCORPORATEPROCESSDEVELOPMENTFORASSISTANCETHILOSACKALEXCHENAMERICAS,NONEEUROPE,TENGHOONNGDANIELTANASIA4SHOULDBEPERFORMEDBYTHEMANUFACTURINGENGINEERRESPONSIBLEFORTHEPRODUCTPRIORTOSTARTINGEXECUTION,PROPOSEDPLANSHOULDBEAPPROVEDBYTHEAPPROPRIATEENGINEERINGMANAGERANDBYTHECUSTOMERPROGRAMMANAGEROROPERATIONSMANAGERSHOULDADDRESSHOWTHEWORKWILLBEFUNDED,ANDOBTAINCUSTOMERAPPROVALFORANYCHARGESNEWPACKAGESDFM101PART1|DEC2008CONFIDENTIALPROCESSDEVELOPMENTASSEMBLYQUALIFICATIONCONSIDERATIONSPROCESSSETUPOPTIMIZATIONTOOLINGEGSTENCILDESIGN,PLACEMENTNOZZLE/GRIPPER,REFLOWNOZZLEPROCESSPARAMETERSEGSCREENINGPARAMETERS,WAVESOLDERPARAMETERS,PRESSFITFORCEPARAMETERS,PROFILESFORASSEMBLYANDREWORKASSEMBLYRELIABILITYMECHANICALINTEGRITYOFTHEINTERCONNECTIONBETWEENTHECOMPONENTANDTHEPCBEGSOLDERJOINTS,PRESSFITCONNECTIONISUSUALLYTHEFOCUSNEWPACKAGESDFM101PART1|DEC2008CONFIDENTIALSOURCESFORLANDPATTERNDESIGNINFORMATIONPCADFXGUIDELINESDOCUMENT,CHAPTER6COMPONENTLIBRARYCREATIONSTANDARDCOMPONENTPACKAGETYPESOTHERSITESALREADYUSINGTHESAMEORSIMILARPARTCOMPONENTSUPPLIERSRECOMMENDEDLANDPATTERN,FROMSPECSHEETIPCLANDPATTERNCALCULATORWEBSITE/IPCORGIPC7351REPLACEMENTFORIPCSM782DFXTECHNICALFORUMDATABASEONLOTUSNOTESNEWPACKAGESDFM101PART1|DEC2008CONFIDENTIALCOMPONENTSTHATAREWASHABLEAREPREFERREDOVERTHOSETHATARENOTTHISPROVIDESMAXIMUMPROCESSFLEXIBILITYCOMPONENTSMUSTBEABLETOWITHSTANDTHEMANUFACTURINGPROCESSANDTEMPERATUREPROFILESTHEREQUIREDPROCESSINGTEMPERATURESARETYPICALLYHIGHERFORPBFREEASSEMBLYWASHABLEANDREFLOWABLEDFXGUIDESECTION216PROCESSCOMPATIBILITYREQUIREMENTSMANUALCHECKDFM101PART1|DEC2008CONFIDENTIALNOTE1COMPONENTSSHOULDBESPECIFIEDTOJSTD020,WHICHSTATESAMAXIMUMTEMPERATUREOF220CFORSNPBAND260CFORPBFREEUNLESSOTHERWISESPECIFIEDBYMANUFACTURER2SNPBMOISTURESENSITIVEPARTSAREACCEPTABLEAT220C3PBFREEMOISTURESENSITIVEPARTSAREACCEPTABLEAT260CCOMPONENTTEMPERATUREREQUIREMENTSWASHABLEANDREFLOWABLEDFM101PART1|DEC2008CONFIDENTIALSHIPMENTPACKAGINGDFXGUIDESECTION2113COMPONENTSUPPLY/PACKAGINGFORMATSMANUALCHECKWHENSPECIFYINGCOMPONENTPARTNUMBERSITISPREFERABLETHATTHEPACKAGINGISLEFTOUTOFTHEP/NWITHSOMESUPPLIERSTHEIRP/NINCLUDESTHEPACKAGINGMAYBEASUFFIXADDEDTOTHEENDOFTHEP/NITISBETTERIFTHISISLEFTOUT,SOIFWEWANTTOCHANGETHEPACKAGINGWEDONTHAVETOCHANGETHEP/NTHROUGHANECPROCESSWECANSIMPLYCOMMUNICATEDIRECTLYWITHTHESUPPLIERDFM101PART1|DEC2008CONFIDENTIALREMOVEANYNONPRODUCTIONPARTSPRIORTOFINALBOMRELEASEPARTSWHICHMAYBECANDIDATESFORREMOVALHEADERPINSUSEDONLYFORDEBUGOFTHEDESIGN,EGGROUNDINGOFOSCILLOSCOPEPROBESSOCKETS,EGTOENABLEFREQUENTUPGRADEOFMICROCODEDURINGDESIGNDEBUGDIAGNOSTICCONNECTORS,EGTOLOGICANALYZERSSMALLHEADERS/CONNECTORSSPREADACROSSTHEBOARD,EGFORMEASUREMENTOFSIGNALINTEGRITYORPOWERDISTRIBUTIONANDNOISEASKTHEDESIGNERIFANYPARTSARENOTREQUIREDFORPRODUCTIONDFXGUIDESECTION245MANUALCHECKPARTREMOVALFROMBOMDFM101PART1|DEC2008CONFIDENTIALDFXGUIDE251WAVESOLDERPTHCOMPONENTSVALORCHECKC_PITCHCOMPONENTANALYSISCORRECTPINPROTRUSIONANDUSEOFSOLDERTHIEVESARECRITICALFORFINEPITCHWAVESOLDERSOLDERTHIEVESARECURRENTLYREQUIREDFORALLPTHCOMPONENTSFORPBFREESOLDERINGNEEDSMORESTUDYDEFECTRATEFORFINEPITCHTYPICALLY10XTHERATEFORSTANDARDPITCHSNPBDATAFINEPITCHCOMPONENTSFINEPITCHPTHCOMPONENTSDFM101PART1|DEC2008CONFIDENTIALDFXGUIDE219NONPREFERREDCOMPONENTS,221PACKAGESELECTIONVALORCHECKC_PITCHCOMPONENTANALYSISSMTPERIPHERALLEADEDCOMPONENTSGULLWINGS,LEADLESSMINIMUMRECOMMENDEDPITCHIS05MMPITCHESDOWNTO04MMCANBEASSEMBLED,BUTWITHLOWERYIELDSAREAARRAYCOMPONENTSPITCHESOF10MMANDABOVEARERECOMMENDED,ASTHEYCANBEASSEMBLEDWITHVERYLOWDEFECTRATESPITCHESBELOW10MMCANBEUSEDWITHCAUTIONMAYHAVELOWERASSEMBLYYIELDSDIFFICULTTOMIXWITHHIGHPASTEVOLUMEPARTS,EGCBGASTEPSTENCILLANDPATTERNDESIGNISMORECHALLENGINGMAYREQUIREADVANCEDPCBTECHNOLOGY,EGMICROVIA,HIGHCAPABILITYSOLDERMASKWEBWIDTHREGISTRATIONPITCHESOF05MMANDBELOWARENOTRECOMMENDED,ASTHEYARECHALLENGINGTOASSEMBLEWITHHIGHYIELDSFINEPITCHCOMPONENTSFINEPITCHSMTCOMPONENTSDFM101PART1|DEC2008CONFIDENTIALQFPASSEMBLYDEFECTSBYPITCHFINEPITCHCOMPONENTSDFM101PART1|DEC2008CONFIDENTIALDFXGUIDESECTION252PASTEINHOLECOMPONENTS,264SMTCONNECTORSMANUALCHECKPICKUPMETHODFORPLACEMENTINTHESMTLINE,INORDEROFPREFERENCEAUTOPLACEABLEPARTSWITHAFLATSURFACEONTHETOPOFTHEPARTFORVACUUMPICKUPMINIMUMDIAMETER75MM03”SOMEPARTSHAVEAREMOVABLEPICKUPCAPTOPROVIDEAPICKUPAREAFLATSURFACEONTHESIDEFORSIDEVACUUMSPECIALGRIPPERDESIGNEDFORTHEPART,ORMANUALPLACEMENTNOTETHATAMETALPICKUPCAPWILLINTERFEREWITHTESTJETOROPENSEXPRESSCAPACITIVETESTINGATICTSMTCONNECTORWITHREMOVABLEPICKUPCAPAUTOPLACEMENTDFM101PART1|DEC2008CONFIDENTIALCOMPONENTSDFM101PART1|DEC2008CONFIDENTIALCOMPLEXCONNECTORSMAYSIGNIFICANTLYIMPACTNREASSEMBLY/ORREPAIR,EGCUSTOMTOOLING,PROCESSDEVELOPMENTOROPTIMIZATION,OPERATORTRAININGFORCUSTOMIZEDOPERATIONOPERATIONTIMEASSEMBLYAND/ORREPAIRYIELDOFTENVERYLITTLEOPPORTUNITYTOCHANGECONNECTORS,ASTHEYCANBEANINTEGRALPARTOFTHESYSTEMMECHANICALDESIGNHOWEVER,FEEDBACKSHOULDSTILLBEPROVIDEDONTHEIRIMPACTTOMANUFACTURINGDFXGUIDESECTION264SMTCONNECTORS,265PTHCONNECTORSMANUALCHECKCOMPLEXCONNECTORSVERYIMPORTANTPOINTISINCLUDEDINTHELASTBULLETONTHISSLIDECONNECTORSTRATEGYISUSUALLYSELECTEDVERYEARLYINTHEDESIGNCYCLESINCECONNECTORSELECTIONWILLIMPACTSEVERALCARDS,ITMAYBEDIFFICULTTOCHANGEACONNECTORSELECTIONASTHISMAYAFFECTMANYOTHERCARDSINACOMPLEXASSEMBLYDFM101PART1|DEC2008CONFIDENTIALFINEPITCHSMTCONNECTORWITHRIVETMECHANICALRETENTIONCONNECTORMUSTBERIVETEDINPLACEPRIORTOREFLOWDUETOTHELEADCONFIGURATIONIFNOTRIVETED,ITWOULDNOTSITFLATONTHEPCBSURFACERIVETINGMUSTTHEREFOREBEDONEWITHALLCOMPONENTSPLACEDINWETPASTEEXAMPLESMTMICROPAXTMLEADSARENOTFLATONTHECOMPONENTLEADSMUSTBEPRESSEDINTOAFLATPOSITIONWHENMOUNTEDONTHEPCARIVETLOCATIONLEADSEXTENDUNDERNEATHTHECONNECTORBODY,MAKINGVISUALINSPECTIONANDTOUCHUPOFSOLDERBRIDGESVERYDIFFICULTCOMPLEXCONNECTORSDFM101PART1|DEC2008CONFIDENTIALPANDACONNECTORFOURROWSOFINTERLACED“BUTTJOINT”CONNECTIONSPINNEDSMTJOINTSVISUALINSPECTIONANDTOUCHUPOFINNER2ROWSISALMOSTIMPOSSIBLEDUETOPITCHANDINTERLACINGONPINSMETALCLAMPMUSTBEPLACEDAROUNDTHECONNECTORTOKEEPITFROMBOWINGFROMTHECARDANDPRODUCINGOPENSDURINGREFLOWCLAMPACTSASAHEATSINKMAKINGITMOREDIFFICULTTOGETTHECONNECTORLEADSTOREFLOWCOMPLEXCONNECTOREXAMPLESCOMPLEXCONNECTORSDFM101PART1|DEC2008CONFIDENTIALCONNECTORMECHANICALRETENTIONDFM101PART1|DEC2008CONFIDENTIALOTHERCONSIDERATIONSFORPASTEINHOLEATTACHAVOIDUSINGSNAPINLEGSUNLESSREQUIRED,ASTHEYMAYPUSHSOLDEROUTOFTHEHOLEKINKEDPTHLEADSMAYBECHEAPERTHANADDINGASEPARATEHOLDDOWNFEATURESCREWS,RIVSCREWS,RIVETSMAYREQUIREADDITIONALASSEMBLYTIME,EGTOINVERTTHEASSEMBLY,INSTALLTHEHARDWARE,APPLYMASKINGFORWAVESCREWSMAYNEEDTOBERETORQUEAFTERWAVESOLDERAVOIDRIVETSDUETOREWORKDIFFICULTYTRYRIVSCREWSINSTEADIFUSINGSCREWS,USECAPTIVENUTSORPEMNUTSTOREDUCEASSEMBLYTIMECONNECTORMECHANICALRETENTIONDFM101PART1|DEC2008CONFIDENTIALOTHERCONSIDERATIONSSNAPINMECHANISMSSHOULDACCOMMODATETHEPCBTHICKNESSANDTOLERANCETYPICALLY/10IFTHEPCBISTOOTHICK,THEPARTMAYNOTENGAGEPROPERLYIFTHEPCBISTOOTHIN,THEPARTMAYFLOATDURINGSOLDERINGINSTALLRETENTIONHARDWAREBEFORETHEPARTISSOLDERED,TOAVOIDINDUCINGSTRESSINTHESOLDERJOINTSTHATCOULDLEADTOEARLYFAILUREPEGSTHATMUSTBEDEFORMEDAFTERINSERTIONSHOULDBEAVOIDEDASTHEYREQUIREADDITIONALASSEMBLYTIMEANDMAYREQUIRESPECIALEQUIPMENT,EGULTRASONICBONDERALIGNMENTPINSSHOULDHAVEATAPERANDSHOULDBELONGERTHANTHEFUNCTIONALPINS,SOTHATTHEYENGAGEFIRSTCONNECTORMECHANICALRETENTIONALIGNMENTPINDFM101PART1|DEC2008CONFIDENTIALOTHERCONSIDERATIONSRETENTIONMECHANISMSSHOULDBELOWFORCE,SOTHATANYFUNCTIONALPTHPINSBENTDURINGINSERTIONCANBEDETECTEDTOREDUCEINCIDENCEOFBENTPTHPINS,THEMAXIMUMINSTALLATIONFORCESHOULDBEAPPLIEDONLYAFTERTHETIPSOFTHEFUNCTIONALPINSAREINSIDETHEBARRELSOFTHEPCBMECHANICALRETENTIONFORSMTCONNECTORSISCHALLENGINGABSENCEOFMECHANICALRETENTION,ORINSTALLATIONOFMECHANICALRETENTIONAFTERSOLDERINGCANBOTHLEADTOEARLYSOLDERJOINTFAILUREINSTALLATIONOFMECHANICALRETENTIONPRIORTOREFLOWRISKSSMEARINGOFSOLDERPASTEANDINCURRINGDEFECTSINOTHERPLACEDCOMPONENTSONTHEPCBSOMEPREFERREDMETHODSARESOLDEREDPTHPINSWITHOUTLATCHESORBARBSORSMTTABSTOFACILITATEREWORK,PTHPINSSHOULDNOTBECONNECTEDTOPLANES,ORATAMINIMUMMUSTHAVETHERMALRELIEFSCONNECTORMECHANICALRETENTIONDFM101PART1|DEC2008CONFIDENTIALCERAMICPARTSLARGERTHAN1210SIZEMAYNEEDADDITIONALANALYSISOFCTEMISMATCHANDSTRESSCRACKINGSUSCEPTIBILITYTOUNDERSTANDPOTENTIALRELIABILITYEFFECTSAVOIDUSINGHIGHVOLTAGESURFACEMOUNTCERAMICCAPACITORSTHEYREQUIRESPECIALPROCESSESENCAPSULATIONTOPREVENTVOLTAGEFLASHOVERNOTALLCERAMICCAPACITORSAREWAVESOLDERABLEREFERTOTHEMANUFACTURERSSPECIFICATIONSFILMNOTRECOMMENDEDDUETOPOORSOLDERABILITYANDREWORKISSUESCLOSEATTENTIONSHOULDBEGIVENTOSPECIFIEDSOLDERINGCONDITIONSMOISTURESENSITIVETHEMANUFACTURERSSTORAGEREQUIREMENTSSHOULDBEFOLLOWEDOFTENNOTSUITABLEFORWAVESOLDERINGDFXGUIDESECTION246CAPACITORSELECTIONMANUALCHECKCAPACITORSDFM101PART1|DEC2008CONFIDENTIALTANTALUMMOLDEDPARTSARERECOMMENDEDOVERCONFORMALLYCOATEDPARTSFORLOWERVOLTAGEVALUES10V,NIOBIUMOXIDECAPA