发明名称 DIFFERENTIAL POLY DOPING AND CIRCUITS THEREFROM
摘要 A method of fabricating a CMOS integrated circuit and integrated circuits therefrom includes the steps of providing a substrate having a semiconductor surface, forming a gate dielectric layer on the semiconductor surface and a polysilicon including layer on the gate dielectric. A portion of the polysilicon layer is masked, and pre-gate etch implant of a first dopant type into an unmasked portion of the polysilicon layer is performed, wherein masked portions of the polysilicon layer are protected from the first dopant. The polysilicon layer is patterned to form a plurality of polysilicon gates and a plurality of polysilicon lines, wherein the masked portion includes at least one of the polysilicon lines which couple a polysilicon gate of a PMOS device to a polysilicon gate of an NMOS device. Fabrication of the integrated circuit is then completed, wherein the integrated circuit includes at least one first region formed in the masked portion lacking the first dopant in the polysilicon gates from the pre-gate etch implant and at least one second region formed in the unmasked portion having the first dopant in the polysilicon gates from the pre-gate etch implant.
申请公布号 US2009096031(A1) 申请公布日期 2009.04.16
申请号 US20070870255 申请日期 2007.10.10
申请人 TEXAS INSTRUMENTS INCORPORATED 发明人 EKBOTE SHASHANK;BENAISSA KAMEL;BALDWIN GREG C.;OBRADOVIC BORNA
分类号 H01L27/11;H01L21/3205 主分类号 H01L27/11
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