Invention Grant
- Patent Title: Nanosheet transistors with wrap around contact
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Application No.: US17247936Application Date: 2020-12-31
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Publication No.: US11569361B2Publication Date: 2023-01-31
- Inventor: Julien Frougier , Ruilong Xie , Kangguo Cheng , Chanro Park
- Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Applicant Address: US NY Armonk
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee Address: US NY Armonk
- Agent L. Jeffrey Kelly
- Main IPC: H01L29/423
- IPC: H01L29/423 ; H01L29/06 ; H01L21/8234 ; H01L27/088 ; H01L29/417 ; H01L29/786

Abstract:
An embodiment includes a method of forming a semiconductor device and the resulting device. The method may include forming a source/drain on an exposed portion of a semiconductor layer of a layered nanosheet. The method may include forming a sacrificial material on the source/drain. The method may include forming a dielectric layer covering the sacrificial material. The method may include replacing the sacrificial material with a contact liner. The semiconductor device may include a first gate nanosheet stack and second gate nanosheet stack. The semiconductor device may include a first source/drain in contact with the first nanosheet stack and a second source/drain in contact with the second nanosheet stack. The semiconductor device may include a source/drain dielectric located between the first source/drain and the second source/drain. The semiconductor device may include a contact liner in contact with the first source/drain, the second source/drain and the source/drain dielectric.
Public/Granted literature
- US20220208981A1 NANOSHEET TRANSISTORS WITH WRAP AROUND CONTACT Public/Granted day:2022-06-30
Information query
IPC分类: