Invention Publication
- Patent Title: METHODS OF FORMING GATE-ALL-AROUND (GAA) DEVICES
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Application No.: US18760602Application Date: 2024-07-01
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Publication No.: US20240355896A1Publication Date: 2024-10-24
- Inventor: Shien-Yang Wu , Ta-Chun Lin , Kuo-Hua Pan
- 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
- The original application number of the division: US16409386 2019.05.10
- Main IPC: H01L29/423
- IPC: H01L29/423 ; H01L21/02 ; H01L21/027 ; H01L21/306 ; H01L21/3065 ; H01L21/762 ; H01L21/8234 ; H01L27/088 ; H01L29/06 ; H01L29/165 ; H01L29/40 ; H01L29/66

Abstract:
A method of manufacturing a device includes forming a plurality of stacks of alternating layers on a substrate, constructing a plurality of nanosheets from the plurality of stacks of alternating layers, and forming a plurality of gate dielectrics over the plurality of nanosheets, respectively. The method allows for the modulation of nanosheet width, thickness, spacing, and stack number and can be employed on single substrates. This design flexibility provides for design optimization over a wide tuning range of circuit performance and power usage.
Information query
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