Surface Mount TechnologySurface Mount Technology - - A Historical Perspective A Historical PerspectiveDefinitionofSurfaceMount TechnologySurfaceMountTechnologyis thepracticeandmethodof attachingleadedandnonleaded electricalcomponentstothe surfaceofaconductivepattern thatdoesnotutilizeleadsin feedthroughholes.Surface Mount TechnologySurface Mount Technology - - A Historical Perspective A Historical PerspectiveOriginalSMTMarketDrivers1960? Smaller Faster Betterproducts Addedcapacityneedinrestrictedsizeformfactor FinancialadvantagesandprestigeofsmallerproductsizesSurface Mount TechnologySurface Mount Technology - - A Historical Perspective A Historical PerspectiveJustifiedneedsgeneratetechnologysolutions Digitalcircuitoperations Reducedpowerrequirements Refinementsin dietechnology attachmentmethods assemblymethodologies Automationtechniques LimitedavailabilityofthroughholecomponentsTechnologyDriversSurface Mount TechnologySurface Mount Technology - - A Historical Perspective A Historical PerspectiveTechnologyEnhancements Solderpasteandmaterialsmaturity AlternateleadformsJlead,BGA,etc. Substratematerialenhancements Componentavailabilityandrobustness StandardizedpackagetypesfootprintsprocessmethodologiesSurface Mount TechnologySurface Mount Technology - - A Historical Perspective A Historical PerspectiveDepartmentofDefenseInterestinenhancedcapabilityfor avionics,space,andsupportresources Initialreservations(DOD,Space,andothers) Throughholetechnologywasmature,robustandwellunderstood. CommonlydefinedasPlanarMount orononeplane SimilartoDIPdevicesbutdoubledcircuitdensitySurface Mount TechnologySurface Mount Technology - - A Historical Perspective A Historical Perspective DesiredcomponentswerenotalwaysavailableasSMD OriginalSurfaceMountapplicationswereoftenHybridorFlatpack FlatpackshaddualcapabilityforthroughholeaswellasPlanarthroughflexibleleadform LeadlesscomponentsweresuspectwhenconsideredforrigorousapplicationsDepartmentofDefenseSurface Mount TechnologySurface Mount Technology - - A Historical Perspective A Historical PerspectiveSMTAdvantagesEmbraced byCommercialUsersReductionin Humanintervention Laborcost Productioncost Materialcost OverheadSurface Mount TechnologySurface Mount Technology - - A Historical Perspective A Historical Perspective Enhancedproductionspeed Increasecircuitdensity Higheroperatingspeed Repetitiveoperationssupport processcontrol qualityconceptsSMTAdvantagesEmbraced byCommercialUsersSurface Mount TechnologySurface Mount Technology - - A Historical Perspective A Historical Perspective Usefulincombinationwiththroughholetechnique Reducedpowerconsumption ReducedheatgenerationSMTAdvantagesEmbraced byCommercialUsersSurface Mount TechnologySurface Mount Technology - - A Historical Perspective A Historical Perspective Increasedcircuitcapability Adequateperformancecapability ContinuedproductionenhancementsandevolutionSMTAdvantagesEmbraced byCommercialUsersSurface Mount TechnologySurface Mount Technology - - A Historical Perspective A Historical PerspectiveIndustrySegmentsDriving SMTTechnologyToday Telecommunications PDA Netbook Laptopcomputers Automotive DODandNASApiggybackingcommercial(COTS commercial,offtheshelf)componentsSurface Mount TechnologySurface Mount Technology - - A Historical Perspective A Historical PerspectiveTheBasicSMTProcessApply SolderPastePlace Chip ComponentsPlace Advanced ComponentsReflowTestCleanSurface Mount TechnologySurface Mount Technology - - A Historical Perspective A Historical PerspectiveSmaller Better CheaperCurrentTechnologyEnhancements Directdieattach,COB,FlipChip BGA,microBGA,PoP Microviatechnology SystemIn Package LowvoltagedevelopmentSurface Mount TechnologySurface Mount Technology - - A Historical Perspective A Historical PerspectiveCurrentTechnologyChallenges PbFreeQFN/DFN/LGA Componentandsubstratematerialenhancement Embeddedcomponent(interlayercapacitor/resistor)Surface Mount TechnologySurface Mount Technology - - A Historical Perspective A Historical PerspectiveNewTechnologyEnhancementsandChallengesfortheFuture Nanotechnologies 3Dsemiconductorarchitectures Nextgenerationleadfreealloys&fluxesSurface Mount TechnologySurface Mount Technology - - A Historical Perspective A Historical PerspectiveNewTechnologyEnhancementsandChallengesfortheFuture Harsh/Hostileenvironment Photovoltaic Morecomplextack/SOC/PoPSurface Mount TechnologySurface Mount Technology - - A Historical Perspective A Historical PerspectiveThefutureislimitedonlybyourimagination