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. 18, 2025

Filed:

Jul. 26, 2022
Applicant:

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

Inventors:

Wei-Min Liu, Hsinchu, TW;

Li-Li Su, ChuBei, TW;

Yee-Chia Yeo, Hsinchu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/66 (2006.01); H01L 21/02 (2006.01); H01L 21/3065 (2006.01); H01L 21/8238 (2006.01); H01L 29/04 (2006.01); H01L 29/08 (2006.01); H01L 29/10 (2006.01); H01L 29/78 (2006.01); H01L 27/092 (2006.01);
U.S. Cl.
CPC ...
H01L 29/785 (2013.01); H01L 21/02433 (2013.01); H01L 21/0262 (2013.01); H01L 21/823814 (2013.01); H01L 29/045 (2013.01); H01L 29/0847 (2013.01); H01L 29/1037 (2013.01); H01L 29/66545 (2013.01); H01L 29/66795 (2013.01); H01L 29/7848 (2013.01); H01L 21/3065 (2013.01); H01L 27/0924 (2013.01);
Abstract

A device includes a first fin and a second fin extending from a substrate, the first fin including a first recess and the second fin including a second recess, an isolation region surrounding the first fin and surrounding the second fin, a gate stack over the first fin and the second fin, and a source/drain region in the first recess and in the second recess, the source/drain region adjacent the gate stack, wherein the source/drain region includes a bottom surface extending from the first fin to the second fin, wherein a first portion of the bottom surface that is below a first height above the isolation region has a first slope, and wherein a second portion of the bottom surface that is above the first height has a second slope that is greater than the first slope.


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