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1、6Sigma介绍V.W找到改善的专案找到专案改善的方向为何要改善改善的机会有多大改善的ROI如何改善范围有哪些,有多大有哪些限制条件需要哪些资源和成员Schedule如何专案的流程是什么Output的指标有哪些Input的参数有哪些找出output的主要指标用CE找出KeyY和KeyX量测系统选用的正确性MSA,KeyY数据的可靠性找到Baseline,确认成效确认Keyx,导入ActionQuickWin将CE中的Key’sX做FMEA对RPN搞item下对策如果Action无效对KeyX做MSA假设检定重新检讨Action制程最佳化,DOEControlPl
2、an,保证Action有效结果再确认效益确认6SigmaScopeDefine–专案定义Measure—评量Analyze–分析Improve—改善及提升Control—控制及维持6Sigma行动步骤--DMAICYTree,Teamcharter,ROI,TeamR&R,QuickWinIPO,C&Ematrix,MSAplanforkeyY(KAPPAorGaugeR&R),Baseline(I-MRchart)FMEA,MSAforkeyx,Hypothesisanalysis(确定X和Y的关系),I-MRchartDOE(Designofexperime
3、nts)Controlplans(专案管制计划)找到专案改善的方向FirstPassYield&RolledThroughputYield(直通率)90%Yield75%Yield99%Yield40%Yield97%Yield最终出厂品质24%isnot97%RolledThroughputYield=RTY=FPY1*FPY2*FPY3*FPY4…..只观察最终产品良率会忽视隐藏工厂(Rework,报废等)的影响,而看到的数字只是表示经由检验来预防不良物品流出的成效V2008R1-5BigYDrillDown2)Identify/quantifytheinp
4、uts1)Startwithbusinessgoal3)DrilldownagainSpaceofAudioteststationOptimizationGoal：2.38mto0.86m(64%)SpaceofAudioChamber37.8%（0.9m）Spaceofoperating62.2%（1.48m)SpaceofMICtest10.5%(0.25m)SpaceofSpeaker16.8%(0.4m)SpaceofRattletest4.2%(0.1m)SpaceofOP25.2%(0.6m)Spaceofrack6.3%(0.15m)Spaceof
5、opendoor40%(0.88m)GoalL=0.86mCurrentL=2.38mOpportunityL=0.32mDMAICfTeamCharterBusinessCaseCustomerTEL’stargetforBFTFPYis95%.S6seriesarenewprojectslaunchedinMarch.BFTFPYinMarchis71.2%(4311/14971).Defectrateis28.8%.NTFrateis22.6%.CCBUhavetoimproveS6seriesBFTFPYtomeetTEL’starget95%.Base
6、don80/20ruleinPareto,thepriorityistoreduceS6SeriesNTFrate.BothQuantaandTELagreetosettheNTFtargetto4%atthismoment.TheultimategoalofthisprojectisnotonlytoreduceNTF,butalsouseSixSigmamethodologiestoworkoutthelongtermsystematicsolutionsforfutureprojects.OpportunitiesStatementCCBUQCTandS6
7、xforecastis318131pcsand344858pcs/year,bythisprojectsuccessfulinimprovement,anddeployactionstoallQCTandS6xproducts:NTFImprovementOpportunity:22.6%(22.6%0%)ROIOpportunities:2,733,183MGoalStatementMetricsCurrentTargetROIProjectDeadlineS6xNTF%22.6%4.0%2,249,434RMB9/14/2012限制条件:(1)BFTtes
8、tcoveragemus
