JESD22-A114-B(EDS-HBM)

JEDECSTANDARDElectrostaticDischarge(ESD)SensitivityTestingHumanBodyModel(HBM)JESD22-A114-B(RevisionofJESD22-A114-A)JUNE2000JEDECSOLIDSTATETECHNOLOGYASSOCIATIONNOTICEJEDECstandardsandpublicationscontainmaterialthathasbeenprepared,reviewed,andapprovedthroughtheJEDECBoardofDirectorslevelandsubsequentlyreviewedandapprovedbytheEIAGeneralCounsel.JEDECstandardsandpublicationsaredesignedtoservethepublicinterestthrougheliminatingmisunderstandingsbetweenmanufacturersandpurchasers,facilitatinginterchangeabilityandimprovementofproducts,andassistingthepurchaserinselectingandobtainingwithminimumdelaytheproperproductforusebythoseotherthanJEDECmembers,whetherthestandardistobeusedeitherdomesticallyorinternationally.JEDECstandardsandpublicationsareadoptedwithoutregardtowhetherornottheiradoptionmayinvolvepatentsorarticles,materials,orprocesses.BysuchactionJEDECdoesnotassumeanyliabilitytoanypatentowner,nordoesitassumeanyobligationwhatevertopartiesadoptingtheJEDECstandardsorpublications.TheinformationincludedinJEDECstandardsandpublicationsrepresentsasoundapproachtoproductspecificationandapplication,principallyfromthesolidstatedevicemanufacturerviewpoint.WithintheJEDECorganizationthereareprocedureswherebyanJEDECstandardorpublicationmaybefurtherprocessedandultimatelybecomeanANSI/EIAstandard.Noclaimstobeinconformancewiththisstandardmaybemadeunlessallrequirementsstatedinthestandardaremet.Inquiries,comments,andsuggestionsrelativetothecontentofthisJEDECstandardorpublicationshouldbeaddressedtoJEDECSolidStateTechnologyAssociation,2500WilsonBoulevard,Arlington,VA22201-3834,[phone]/7559or:PleaserefertothecurrentCatalogofJEDECEngineeringStandardsandPublicationsorcallGlobalEngineeringDocuments,USAandCanada(1-800-854-7179),International(303-397-7956)PrintedintheU.S.A.AllrightsreservedPLEASE!DON’TVIOLATETHELAW!ThisdocumentiscopyrightedbytheElectronicIndustriesAllianceandmaynotbereproducedwithoutpermission.Organizationsmayobtainpermissiontoreproducealimitednumberofcopiesthroughenteringintoalicenseagreement.Forinformation,contact:JEDECSolidStateTechnologyAssociation2500WilsonBoulevardArlington,Virginia22201-3834orcall(703)907-7559JEDECStandardNo.22-A114-BPage1TestMethodA114-B(RevisionofTestMethodA114-A)TESTMETHODA114BELECTROSTATICDISCHARGE(ESD)SENSITIVITYTESTINGHUMANBODYMODEL(HBM)(FromJEDECBoardBallotJCB-00-27,formulatedunderthecognizanceofJC-14.1CommitteeonReliabilityTestMethodsforPackagedDevices.)1PurposeThismethodestablishesastandardprocedurefortestingandclassifyingmicrocircuitsaccordingtotheirsusceptibilitytodamageordegradationbyexposuretoadefinedelectrostaticHumanBodyModel(HBM)discharge(ESD).Theobjectiveistoprovidereliable,repeatableHBMESDtestresultssothataccurateclassificationscanbeperformed.2ApparatusThistestmethodrequiresthefollowingequipment.2.1AnESDpulsesimulatorandaDeviceUnderTest(DUT)socketequivalenttothecircuitoffigure1.Thesimulatormustbecapableofsupplyingpulseswiththecharacteristicsrequiredbyfigure2andfigure3.2.2OscilloscopeTheoscilloscopeandamplifiercombinationshallhavea350MHzminimumsingle-shotbandwidthandavisualwritingspeedof4cm/nsminimum.2.3CurrentprobeThecurrentprobeshallhaveaminimumpulse-currentbandwidthof350MHz.Theprobe(transformerandcablewithanominallengthof1meter)shallhavea1GHzbandwidth,aminimumcurrentratingof12amperespeakpulse-currentcapabilityandarisetimeoflessthanonenanosecond.2.4EvaluationloadsAn18-24AWGtinnedcopperwireisrecommendedfortheshortwaveformverificationtest.Theleadlengthshouldbeasshortaspracticabletospanthedistancebetweenthetwofarthestpinsinthesocketwhilepassingthroughthecurrentprobe.Theendsofthewiremaybegroundtoapointwhereclearanceisneededtomakecontactonfine-pitchsocketpins.A500ohm+/-1%,4000volt,low-inductanceresistorshallbeusedforinitialsystemcheckoutandperiodicsystemrecalibration.JEDECStandardNo.22-A114-BPage2TestMethodA114-B(RevisionofTestMethodA114-A)2Apparatus(cont’d)2.5CalibrationAllapparatususedfortesterevaluationshallbecalibratedaccordingtoadocumented,traceablecalibrationsystemandinaccordancewithmanufacturer’srecommendations.Figure1—TypicalequivalentHBMESDcircuitNOTES1Theperformanceofanysimulatorisinfluencedbyitsparasiticcapacitanceandinductance.2Precautionsmustbetakenintesterdesigntoavoidrechargetransientsandmultiplepulses.3R2,usedforinitialequipmentqualificationandrequalificationasspecifiedin3.1,shallbealowinductance,4000volt,500ohmresistorwith+/-1%tolerance.4StackingofDUTsocketadaptors(piggybacking)isallowedonlyifthewaveformscanbeverifiedtomeetthespecificationsintable1.5ReversalofterminalsAandBtoachievedualpolarityisnotpermitted.6S2shallbeclosedatleast10millisecondsafterthepulsedeliveryperiodtoensuretheDUTsocketisnotleftinachargedstate.7R1,1500ohm+/-1%.8C1,100pF+/-10%(effectivecapacitance).JEDECStandardNo.22-A114-BPage