Invention Grant
- Patent Title: Merged gate and source/drain contacts in a semiconductor device
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Application No.: US14282089Application Date: 2014-05-20
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Publication No.: US09960256B2Publication Date: 2018-05-01
- Inventor: Guillaume Bouche , Andy Chih-Hung Wei
- Applicant: GLOBALFOUNDRIES Inc.
- Applicant Address: KY Grand Cayman
- Assignee: GLOBALFOUNDRIES INC.
- Current Assignee: GLOBALFOUNDRIES INC.
- Current Assignee Address: KY Grand Cayman
- Agency: Williams Morgan, P.C.
- Main IPC: H01L21/44
- IPC: H01L21/44 ; H01L29/66 ; H01L29/78 ; H01L29/08 ; H01L29/40 ; H01L21/768

Abstract:
Provided are approaches for forming merged gate and source/drain (S/D) contacts in a semiconductor device. Specifically, one approach provides a dielectric layer over a set of gate structures formed over a substrate; a set of source/drain (S/D) openings patterned in the dielectric layer between the gate structures; a fill material formed over the gate structures, including within the S/D openings; and a set of gate openings patterned over the gate structures, wherein a portion of the dielectric layer directly adjacent the fill material formed within one of the S/D openings is removed. The fill material is then removed, selective to the dielectric layer, and a metal material is deposited over the semiconductor device to form a set of gate contacts within the gate openings, and a set of S/D contacts within the S/D openings, wherein one of the gate contacts and one of the S/D contacts are merged.
Public/Granted literature
- US20150340467A1 MERGED GATE AND SOURCE/DRAIN CONTACTS IN A SEMICONDUCTOR DEVICE Public/Granted day:2015-11-26
Information query
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