The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 13, 2025

Filed:

Mar. 27, 2023
Applicant:

Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;

Inventors:

Chih-Ching Wang, Kinmen County, TW;

Jon-Hsu Ho, New Taipei, TW;

Wen-Hsing Hsieh, Hsinchu, TW;

Kuan-Lun Cheng, Hsin-Chu, TW;

Zhiqiang Wu, Hsinchu County, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/786 (2006.01); H01L 29/423 (2006.01);
U.S. Cl.
CPC ...
H01L 29/78696 (2013.01); H01L 29/42392 (2013.01);
Abstract

Multi-gate devices and methods for fabricating such are disclosed herein. An exemplary device includes a channel layer, a first source/drain feature, a second source/drain feature, and a metal gate. The channel layer has a first horizontal segment, a second horizontal segment, and a vertical segment connects the first horizontal segment and the second horizontal segment. The first horizontal segment and the second horizontal segment extend along a first direction, and the vertical segment extends along a second direction. The vertical segment has a width along the first direction and a thickness along the second direction, and the thickness is greater than the width. The channel layer extends between the first source/drain feature and the second source/drain feature along a third direction. The metal gate wraps channel layer. In some embodiments, the first horizontal segment and the second horizontal segment are nanosheets.


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