Invention Grant
- Patent Title: Semiconductor devices and methods of manufacture
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Application No.: US17402157Application Date: 2021-08-13
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Publication No.: US12080597B2Publication Date: 2024-09-03
- Inventor: Te-Chih Hsiung , Jyun-De Wu , Peng Wang , Huan-Just Lin
- Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
- Applicant Address: TW Hsinchu
- Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
- Current Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
- Current Assignee Address: TW Hsinchu
- Agency: Slater Matsil, LLP
- Main IPC: H01L21/768
- IPC: H01L21/768 ; H01L21/02 ; H01L21/311 ; H01L23/535 ; H01L29/40 ; H01L29/417 ; H01L29/66 ; H01L29/78

Abstract:
Semiconductor devices and methods of manufacturing the semiconductor devices are described herein. A method includes forming a first etch stop layer from a portion of a gate mask, the gate mask extending between spacers adjacent a gate electrode, the gate electrode overlying a semiconductor fin. The method further includes forming a second etch stop layer adjacent the first etch stop layer, forming an opening through the second etch stop layer, and exposing the first etch stop layer by performing a first etching process. The method further includes extending the opening through the first etch stop layer and exposing the gate electrode by performing a second etching process. Once the gate electrode has been exposed, the method further includes forming a gate contact in the opening.
Public/Granted literature
- US20230047598A1 SEMICONDUCTOR DEVICES AND METHODS OF MANUFACTURE Public/Granted day:2023-02-16
Information query
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