西门子可靠性培训资料

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1、M.Chbat,S.Eberlin,M.Tochtermann,T.JuhnkehiT7500Multi-HaulDWDMsystemProductReliabilityUpdateProcesses,Status,andMeasuresSept15,2004SiemensReliabilityProcessOverviewOpticalComponents:EDFAVOAGTCPassivesNegotiationswithsuppliers:ModelingFieldexperienceSupp

2、liercomparisonElectricalComponents:ResistorsCapacitorsTransistorsICsetc.Standards:SN29500IEC61709MechanicalComponents:ConnectorsBoardsetc.Standards:SN29500IEC61709CardFITRateFeedbackfromFieldReturnRateProductReliabilityAssuranceProcessReference:Siemen

3、sstandard;inagreementwithinternationalstandardsIEC61709productdefinitionproductdevelopmentproductdeliveredrequirementsalignedwithtechnologybasisfailurerateallocationtoindividualcardsinvolvementofcomponentengineering&QAcardfailureratesonbasisofpartslist

4、scomponentratingbydesignnew&criticalcomponentsspecificationnewcomponents&supplierauditsinproductionfailurecontrolfieldreturnanalysis&thresholdmonitoringconservativedatabasedonpredictedvaluesregularcomponentsupplierauditsReliabilityControlandImpro

5、vementCross-functionalteamestablishedtoinstallfocusedprogramCloseinteractionwiththesupplierfordesign,technologyandprocessEarlyfailuremonitoringandfeedbackindevelopmentphaseExtendedtestingincludingtemperaturecyclinginproductionDetailedfailuremonitoringi

6、nproductionforearlycorrectiveactionPredictedFITratesvs.fieldreturnFITratesFieldreturnFITrateinherentlyis(!)lowerthanpredictedFITratesparepartsdon’tcontributetoFMAnon-installedequipmentatcertaincarrierslowchannelcountformanyyearstemperatureforFITestimat

7、ionprobablyhigherthaninrealitymargin(e.g.,duetolowchannelcount,lowPMD,BOL)canmaskperformancedegradationFunctionalPartitionofOLIOpticalamplificationviaEDFAgainblockPumpdiodesMonitordiodesEDF-HeaterInternalGainSwitchOSCsplittingfunctionsasAdd/DropoftheOS

8、CchannelusingwavelengthselectivecouplersSplittingofmonitorsignalsattheinputandoutputportandatintermediatemeasurementpointsSpectralshapingofthesignalusingaVOAforsettingtheEDFAtoanoptimizedoperatingpointGTCfortiltcompensationOpticalmonito