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:
Jan. 14, 2025

Filed:

Apr. 24, 2023
Applicant:

Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;

Inventors:

Hsin-Che Chiang, Taipei, TW;

Ju-Yuan Tzeng, New Taipei, TW;

Chun-Sheng Liang, Changhua County, TW;

Chih-Yang Yeh, Hsinchu County, TW;

Shu-Hui Wang, Hsinchu, TW;

Jeng-Ya David Yeh, New Taipei, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/423 (2006.01); H01L 21/28 (2006.01); H01L 21/768 (2006.01); H01L 23/528 (2006.01); H01L 23/532 (2006.01); H01L 29/165 (2006.01); H01L 29/49 (2006.01); H01L 29/51 (2006.01); H01L 29/66 (2006.01); H01L 29/78 (2006.01);
U.S. Cl.
CPC ...
H01L 29/42372 (2013.01); H01L 21/28088 (2013.01); H01L 21/7684 (2013.01); H01L 21/76846 (2013.01); H01L 23/5283 (2013.01); H01L 23/53204 (2013.01); H01L 23/5329 (2013.01); H01L 29/4966 (2013.01); H01L 29/66545 (2013.01); H01L 29/66795 (2013.01); H01L 29/7851 (2013.01); H01L 29/165 (2013.01); H01L 29/517 (2013.01); H01L 29/7843 (2013.01); H01L 29/7848 (2013.01);
Abstract

A method includes forming a semiconductor fin over a substrate; forming a gate structure over the semiconductor fin, the gate structure comprising: a first metallic layer; a second metallic layer over the first metallic layer, wherein the first metallic layer is a metal compound of a first element and a second element and the second metallic layer is a single-element metal of the second element; and an oxide layer between the first metallic layer and the second metallic layer.


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