Invention Grant
- Patent Title: Semiconductor device and method
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Application No.: US16372956Application Date: 2019-04-02
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Publication No.: US10516052B2Publication Date: 2019-12-24
- Inventor: Che-Cheng Chang , Chih-Han Lin , Horng-Huei Tseng
- Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
- Applicant Address: TW Hsin-Chu
- Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee Address: TW Hsin-Chu
- Agency: Slater Matsil, LLP
- Main IPC: H01L29/78
- IPC: H01L29/78 ; H01L21/28 ; H01L21/3065 ; H01L21/308 ; H01L21/762 ; H01L21/768 ; H01L23/535 ; H01L29/423 ; H01L29/49 ; H01L29/66

Abstract:
A representative method for manufacturing a semiconductor device (e.g., a fin field-effect transistor) includes the steps of forming a gate structure having a first lateral width, and forming a first via opening over the gate structure. The first via opening has a lowermost portion that exposes an uppermost surface of the gate structure. The lowermost portion of the first via opening has a second lateral width. A ratio of the second lateral width to the first lateral width is less than about 1.1. A source/drain (S/D) region is disposed laterally adjacent the gate structure. A contact feature is disposed over the S/D region. A second via opening extends to and exposes an uppermost surface of the contact feature. A bottommost portion of the second via opening is disposed above a topmost portion of the gate structure.
Public/Granted literature
- US20190229215A1 Semiconductor Device and Method Public/Granted day:2019-07-25
Information query
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