CMOS的工艺技术演示教学.ppt

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1、CMOS的工艺技术CMOSStartingwithasiliconwaferCrossSectionoftheSiliconWaferMagnifyingtheCrossSectionCMOSn/p-wellFormationGrowThinOxideDepositNitrideDepositResistsiliconsubstrateUVExposureDevelopResistEtchNitriden-wellImplantRemoveResistCMOSn/p-wellFormationsili

2、consubstrateGrowOxide(n-well)RemoveNitridep-wellImplantRemoveOxideTwin-wellDrive-inp-welln-wellRemoveDrive-InOxidesiliconsubstratep-welln-wellCMOSLOCOSIsolationGrowThinOxideDepositNitrideDepositResistUVExposureDevelopResistEtchNitrideRemoveResistCMOSLOC

3、OSIsolationsiliconsubstratep-welln-wellDepositResistUVExposureDevelopResistFieldImplantBRemoveResistGrowFieldOxideFoxRemoveNitrideRemoveOxidesiliconsubstratep-welln-wellGrowScreenOxideCMOSTransistorFabricationVtImplantDepositResistUVExposureDevelopResis

4、tPunchthroughImplantRemoveResistRemoveOxideFoxsiliconsubstratep-welln-wellGrowGateOxideCMOSTransistorFabricationDepositPolySiPolySiImplantpolySipolySiDepositResistUVExposureDevelopResistEtchPolySiRemoveResistFoxsiliconsubstratep-welln-wellCMOSTransistor

5、FabricationDepositThinOxideDepositResistUVExposureDevelopResistn-LDDImplantRemoveResistFoxpolySipolySisiliconsubstratep-welln-wellCMOSTransistorFabricationDepositResistUVExposureDevelopResistp-LDDImplantRemoveResistDepositSpacerOxideEtchSpacerOxideFoxpo

6、lySipolySisiliconsubstratep-welln-wellCMOSTransistorFabricationDepositResistUVExposureDevelopResistn+S/DImplantn+n+RemoveResistFoxpolySipolySisiliconsubstratep-welln-wellCMOSTransistorFabricationDepositResistUVExposureDevelopResistp+S/DImplantp+p+Remove

7、ResistFoxpolySipolySin+n+siliconsubstratep-welln-wellCMOSContacts&InterconnectsDepositBPTEOSBPTEOSBPSGReflowPlanarizationEtchbackDepositResistUVExposureDevelopResistContactEtchbackRemoveResistFoxpolySipolySin+n+p+p+siliconsubstratep-welln-wellCMOSContac

8、ts&InterconnectsDepostMetal1Metal1DepositResistUVExposureDevelopResistEtchMetal1RemoveResistFoxpolySipolySip+p+n+n+BPTEOSsiliconsubstratep-welln-wellCMOSContacts&InterconnectsDepositIMD1IMD1DepositSOGSOGPlanarizationEtchbackDepos