Invention Grant
- Patent Title: Conformal doping for FinFET devices
- Patent Title (中): FinFET器件的共形掺杂
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Application No.: US14028517Application Date: 2013-09-16
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Publication No.: US09105559B2Publication Date: 2015-08-11
- Inventor: Veeraraghavan S. Basker , Nathaniel Berliner , Hyun-Jin Cho , Johnathan Faltermeier , Kam-Leung Lee , Tenko Yamashita
- Applicant: International Business Machines Corporation , GLOBALFOUNDRIES Inc.
- Applicant Address: US NY Armonk KY Grand Cayman
- Assignee: International Business Machines Corporation,Global Foundries, Inc.
- Current Assignee: International Business Machines Corporation,Global Foundries, Inc.
- Current Assignee Address: US NY Armonk KY Grand Cayman
- Agency: Law Offices of Ira D. Blecker, P.C.
- Main IPC: H01L21/00
- IPC: H01L21/00 ; H01L21/18 ; H01L21/225

Abstract:
A conformal doping process for FinFET devices on a semiconductor substrate which includes NFET fins and PFET fins. In a first exemplary embodiment, an N-type dopant composition is conformally deposited over the NFET fins and the PFET fins. The semiconductor substrate is annealed to drive in an N-type dopant from the N-type dopant composition into the NFET fins. A P-type dopant composition is conformally deposited over the NFET fins and the PFET fins. The semiconductor substrate is annealed to drive in a P-type dopant from the P-type dopant composition into the PFET fins. In a second exemplary embodiment, one of the NFET fins and PFET fins may be covered with a first dopant composition and then a second dopant composition may cover both the NFET fins and the PFET fins followed by an anneal to drive in both dopants.
Public/Granted literature
- US20150079773A1 CONFORMAL DOPING FOR FINFET DEVICES Public/Granted day:2015-03-19
Information query
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