aim_lead_free_guide

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1、LEADLeadLead--FreeFreeSolderingGuideSolderingGuideAlloys•Chemistries•Data•Training•ConsultationAIMhasthelead-freeproductsandprocessknowledgerequiredtohelpyourcompanyinthetransitiontolead-freesolderinginthemostlogicalandeconomicalwayspossible.Manufacturing&DistributionWorldwide

2、Americas+1-401-463-5605Europe+44-1737-222-258Asia-Pacific+852-2649-71834TimeSMTVisioninfo@aimsolder.comAwardWinnerwww.aimsolder.com06.25.01.13.03.03TableofContentsIntroduction1LegislationUpdate2PatentSituation4Lead-FreeAlloyTolerancesChart5AvailableAIMLead-FreeAlloys6AIMLead-F

3、reeAssemblyProducts7ConsultationServicesInformation8TechnicalArticles9§AComparisonofTin-Silver-CopperLead-FreeAlloys§PracticalGuidetoAchievingLead-FreeElectronicsAssembly§Materials&ProcessConsiderationsforLead-FreeAssembly§StudyofLeadContaminationinLead-FreeElectronicsAssembly

4、TestData§AIMGeneratedData38rd§3PartyGeneratedData53IntroductionTheissueoflead-freesolderinghaspiquedagreatdealofinterestintheelectronicsassemblyindustryasoflate.Whatwasonceanissuethatseemedtoofarawaytoworryabouthasbecomeapressingreality.Inordertoavoidconfusion,lastminutepanic,

5、andamisunderstandingofhowtheissueoflead-freesolderingwillaffecttheindustryandindividualsusersofsolders,itisnecessaryforallsuppliersandassemblerstobecomeeducatedinthismatter.Lead-FreeSoldering-Why?Thereisnoeasyanswertowhytheindustryhasbecomesopre-occupiedwithlead-freesoldersaso

6、flate,sincethereisnoimminentlegislation;themostsimpleexplanationisFEAR:Fearof(potential)Legislation,FearofTradeBarriers,andFearofCompetition.Itislikelythatmostofthecompaniescurrentlyconcernedwiththelead-freeissuearemotivatedbyacombinationofthesethree.•TheWEEEdirectiveinEuropea

7、ndsimilarmandatesinJapanhaveinstilledfearthatalegislativebodywillprohibittheuseofleadinelectronicssoldering.•Ifaparticularcountrydisallowsleadfromelectronics,thenadefactotradebarrieriscreatedbetweenthatcountryandanyonenotcapableofprovidinglead-freeelectronicssolutions.Ofcourse

8、,thisalsocouldtakeplacebetweenindividualcompaniesorindustries