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:
Mar. 08, 2022

Filed:

Oct. 24, 2019
Applicant:

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

Inventors:

Chao-Hsun Wang, Chung-Li, TW;

Kuo-Yi Chao, Hsinchu, TW;

Rueijer Lin, Hsinchu, TW;

Chen-Yuan Kao, Zhudong Township, Hsinchu County, TW;

Mei-Yun Wang, Chu-Pei, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/088 (2006.01); H01L 29/78 (2006.01); H01L 21/768 (2006.01); H01L 29/66 (2006.01); H01L 23/535 (2006.01); H01L 29/417 (2006.01); H01L 29/45 (2006.01);
U.S. Cl.
CPC ...
H01L 29/7851 (2013.01); H01L 21/76897 (2013.01); H01L 23/535 (2013.01); H01L 29/41791 (2013.01); H01L 29/456 (2013.01); H01L 29/66545 (2013.01); H01L 29/66795 (2013.01); H01L 29/785 (2013.01);
Abstract

A method for forming a FinFET device structure is provided. The method includes forming a fin structure over a substrate and forming a gate dielectric layer over the fin structure. The method also includes forming a gate electrode layer over the gate dielectric layer and forming a source/drain (S/D) structure adjacent to the gate electrode layer. In addition, the method includes forming an S/D contact structure over the S/D structure. The method also includes forming a first conductive layer in direct with the gate electrode layer. A bottom surface of the first conductive layer is lower than a top surface of the gate dielectric layer. The method further includes forming a second conductive layer over the first conductive layer. The gate electrode layer is electrically connected to the second conductive layer by the first conductive layer.


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