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. 31, 2023

Filed:

Sep. 24, 2020
Applicant:

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

Inventors:

Tzung-Yi Tsai, Taoyuan, TW;

Yen-Ming Chen, Chupei, TW;

Tsung-Lin Lee, Hsinchu, TW;

Chih-Chieh Yeh, Taipei, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/8234 (2006.01); H01L 27/088 (2006.01);
U.S. Cl.
CPC ...
H01L 21/823431 (2013.01); H01L 21/823462 (2013.01); H01L 21/823481 (2013.01); H01L 27/0886 (2013.01);
Abstract

A fin field effect transistor (FinFET) device structure with dummy fin structures and method for forming the same are provided. The FinFET device structure includes an isolation structure over a substrate, and a first fin structure extended above the isolation structure. The fin field effect transistor (FinFET) device structure includes a second fin structure adjacent to the first fin structure, and a material layer formed over the fin structure. The material layer and the isolation structure are made of different materials, the material layer has a top surface with a top width and a bottom surface with a bottom width, and the bottom width is greater than the top width.


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