Withtherapiddevelopmentoftheelectronicsindustryandthecontinuousadvancementoftechnologyandmanufacturinglevels,electronicproductsarebecomingincreasinglysophisticated.Theminiaturizationandcomplexityofcircuitboards,aswellasthedecreasingspacebetweensolderpads,havemadetraditionalsolderingprocessesunabletomeettherequirementsofsomehigh-precisionproducts.Themainfeatureoflasersolderingistousethehighenergyofthelasertoachieverapidheatinginalocalorsmallareatocompletethesolderingprocess.Thisaspecthasasignificantadvantageinthefuture.Now,let'stakealookatShenzhenJJYSolderPasteFactory......
inPCBADuringthemanufacturingprocess,duetoSMTSomereasonsduringtheprocesswillbePCBItisverycommonforsomeundesirablephenomenatobeleftonit,suchastinbeads.TinbeadsrefertoinSMTSmallsphericalorpunctatesolderthatappearsonthesolderpadsorthemetallayeronthebackafterthecircuitboardisassembled.Ifthesetinbeadsarenotdealtwith,itwillleadtoequipmentfailureandshortentheservicelifeofthecircuitboard.Next,ShenzhenJJYSolderPasteManufacturerwilldiscussSMTAftersolderpastesolderingPCBWhatshouldbedonewhentherearetinbeadsontheboardsurface......
inPCBADuringthesolderpastesolderingprocess,duetotheinfluenceoffactorssuchassolderingmaterials,processes,andpersonnel,itmayleadtoPCBAThephenomenonofpoorsolderingisintroducedbyShenzhenJJYSolderPasteManufacturerasacommononePCBAPoorweldingphenomenon:1,PCBAThereistoomuchresidueontheboardsurfacePCBAExcessiveresidueontheboardmaybeduetoinsufficientpreheatingortoolowpreheatingtemperaturebeforesoldering,insufficienttemperatureofthesolderoven,toofastboardmovementspeed,additionofanti-oxidantandanti-oxidationoilinthesoldersolution,excessiveapplicationofflux,andcomponentfeet......
Itiswellknownthataftersolderpastesoldering,therewillbemoreorlesssomeresiduesleftbehind,andtheseresiduescaneasilyhavesomeadverseeffectsonelectronicproducts,suchascircuitshortcircuits,dielectricbreakthrough,andcomponentcorrosion.Althoughmostsolderpastemanufacturershavelaunchedno-cleansolderpastestomeettherequirementsofelectronicmanufacturers,whichhasgreatlyreducedtheharmofsolderpasteresidues,manyhigh-precisionapplications,suchasautomotiveinstrumentsandaircraftparts,stillneedtobecleanedeveniftheharmofresiduesisverysmall.......
FaceuptoSMTAftersolderpastesolderingPCBTheproblemofsolderbeadsontheboardisarelativelycommonchallenge.Weneedtotakeeffectivemeasurestodealwithittoensureproductqualityandequipmentreliability.ThefollowingisabriefintroductionbyJJYSolderPasteManufacturertothecommoncausesofsolderbeadsandtheirsolutions:1.AnalysisofthecausesofsolderbeadsSMTDuringthe(surfacemounttechnology)process,thegenerationofsolderbeadsoftenstemsfrommultiplelinks,mainlyincluding:1Uneveninductionheating:Useinductionheating......
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