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1、222IEEETRANSACTIONSONCOMPONENTSANDPACKAGINGTECHNOLOGIES,VOL.29,NO.1,MARCH2006PrognosticsandHealthManagementofElectronicsto?nalfailure.Inaddition,thereisasigni?cantshortageofknowledgeaboutthefailureprecursorsinelectronics[10].Consequently,itcanNikhilM.VichareandMichaelG.Pecht,Fellow,IEEEbemoredi
2、f?culttoimplementdiagnosticandprognosticsystemsthatcandirectlymonitorthefaultsorconditionsinwhichfaultoccursinelectronics.Abstract—TherehasbeenagrowinginterestinmonitoringtheongoingInrecentyears,PHMhasemergedasoneofthekeyenablersforhealthofproductsandsystemsinordertopredictfailuresandprovidewar
3、ningtoavoidcatastrophicfailure.Here,healthisde?nedastheextentachievingef?cientsystem-levelmaintenanceandloweringlife-cycleofdegradationordeviationfromanexpectednormalcondition.Whilethecosts.InNovember2002,theU.S.DeputyUnderSecretaryofDefenseapplicationofhealthmonitoring,alsoreferredtoasprognost
4、ics,iswelles-forLogisticsandMaterielReadinessreleasedapolicycalledcondi-tablishedforassessmentofmechanicalsystems,thisisnotthecaseforelec-tion-basedmaintenanceplus(CBM+),[11].CBM+representsanef-tronicsystems.However,electronicsystemsareintegraltothefunction-alityofmostsystemstoday,andtheirrelia
5、bilityisoftencriticalforsystemforttoshiftunscheduledcorrectiveequipmentmaintenanceofnewandreliability.legacysystemstopreventiveandpredictiveapproachesthatscheduleThispaperpresentsthestate-of-practiceandthecurrentstate-of-re-maintenancebasedupontheevidenceofneed.searchintheareaofelectronicsprogn
6、osticsandhealthmanagement.FourTheimportanceofPHMimplementationwasexplicitlystatedinthecurrentapproachesincludebuilt-in-test(BIT),useoffusesandcanaryDoD5000.2policydocumentondefenseacquisition,whichstatesthatdevices,monitoringandreasoningoffailureprecursors,andmodelingaccumulateddamagebasedonmea
7、suredlife-cycleloads.Examplesare“programmanagersshalloptimizeoperationalreadinessthroughaf-providedforthesedifferentapproaches,andtheimplementationchal-fordable,integrated,embeddeddiagnosticsandprognostics,andem-lengesarediscussed
