Invention Grant
US09379104B1 Method to make gate-to-body contact to release plasma induced charging
有权
进行门到体接触释放等离子体诱导充电的方法
- Patent Title: Method to make gate-to-body contact to release plasma induced charging
- Patent Title (中): 进行门到体接触释放等离子体诱导充电的方法
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Application No.: US14639159Application Date: 2015-03-05
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Publication No.: US09379104B1Publication Date: 2016-06-28
- Inventor: Xusheng Wu
- Applicant: GLOBALFOUNDRIES Inc.
- Applicant Address: KY Grand Cayman
- Assignee: GLOBALFOUNDRIES INC.
- Current Assignee: GLOBALFOUNDRIES INC.
- Current Assignee Address: KY Grand Cayman
- Agency: Ditthavong & Steiner, P.C.
- Main IPC: H01L21/336
- IPC: H01L21/336 ; H01L21/8234 ; H01L27/06 ; H01L29/78 ; H01L29/861 ; H01L29/66 ; H01L21/265 ; H01L21/266 ; H01L29/06 ; H01L29/423 ; H01L21/84 ; H01L29/417

Abstract:
Methods for preparing a FinFET device with a protection diode formed prior to M1 formation and resulting devices are disclosed. Embodiments include forming plural fins on a substrate, with a STI region between adjacent fins; forming a dummy gate stack over and perpendicular to the fins, the gate stack including a dummy gate over a dummy gate insulating layer; forming sidewall spacers on opposite sides of the dummy gate stack; forming source/drain regions at opposite sides of the dummy gate stack; forming an ILD over the STI regions between fins; removing the dummy gate stack forming a gate cavity; forming a gate dielectric in the gate cavity; removing the gate dielectric from the gate cavity in a protection diode area, exposing an underlying fin; implanting a dopant into the exposed fin; and forming a RMG in the gate cavity, wherein a protection diode is formed in the protection diode area.
Information query
IPC分类: