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1、芯片制造企业MRP管理系统的设计与实现THEDESIGNANDREALIZATIONOFMRPSYSTEMINICMANUFACTURINGENTERPRISEABSTRACTMRP(MaterialRequirementPlanning),asamaturesolution,hasbeensuccessfullyimplementedinalmosteveryindustry.ButtheindustryofIC(integratedcircuit)manufacturing,hasthreeparticularities:1)Dem
2、and:frequentlyfluctuatedsalesforecast,verylowconsistencybetweenforecastandactualsalesorder;2)Product:averylongproductioncycle,butaveryshortproductlifecycleandanuncertainlotsize;3)Manufacturing:complexmanufacturemode,complexandfrequentlychangedroutingandrecipe,uncertainst
3、epprocesstime,dispatchingbylotnotbyproductionorder.TheseparticularitiesmakeneitherERPnorSCMproductfromcurrentmarketcanmeettheMRPrequirementfromchipmanufacturingenterprises.Basedontheanalysisoftheparticularities,thispaperprovidedrelevantsolutionforeachofthem.Againstthedem
4、and’sparticularity,theconceptofproductionallocationintroducedanddesignedaSWAPmodelbetweenallocationandsalesordertogenerateanaccurateandreliabledemand;Againttheparticularitiesofproductandmanufacturing:1)Firstly,theconceptofWIP(WorkinProcess)isintroducedintoMRPtosolvethepr
5、oblemthatproductandrecipechangesduringmanufacturing;2)Secondly,evenlydividedproductionallocationfrommonthlytodailybasisbythesimulationofwaferstartplanandreversecalculation,toobtainasmoothdailydemand;3)Thirdly,predictionmodelofstepprocesstimeanddeterminationstrategyofreci
6、pedesignedtoensureMRPcangetaccurateoperationdata.Finanlly,withrefertoSAP’sstandardMRPsolution,combinedwithIC’senterprise’srequirement,acompletelyMRPmodelhasdesignedandrealizedinICmanufacturingenterprise.ThispaperusedJ2EEframeworktogeneratetheMRPsystem.MRPhassixfunctionmo
7、dules:originaldata’ssynchronizationfromSAPandMES,data’spre-processing,allocationmanagement,demandexplosion,reportdesignandsecuritymanagement.Sincethecorepartisthecalculationlogic,ituseschedulejobstoplanningandarrangingeachcomputingmodule’srunning.Finallygetrequiremntofra
8、wmaterial.MRPsystemhasbeensuccessfullyimplementedinSMICcompany,ithasmadeagreatimprovementofplanning’sac
