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.
Patent No.:
Date of Patent:
Nov. 26, 2019
Filed:
Sep. 27, 2016
Applicant:
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;
Inventors:
Assignee:
TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/092 (2006.01); H01L 29/06 (2006.01); H01L 29/36 (2006.01); H01L 29/161 (2006.01); H01L 29/08 (2006.01); H01L 29/417 (2006.01); H01L 29/66 (2006.01); H01L 29/78 (2006.01); H01L 21/8238 (2006.01); H01L 21/306 (2006.01); H01L 21/02 (2006.01);
U.S. Cl.
CPC ...
H01L 27/0924 (2013.01); H01L 21/30625 (2013.01); H01L 21/823814 (2013.01); H01L 21/823821 (2013.01); H01L 21/823871 (2013.01); H01L 29/0649 (2013.01); H01L 29/0847 (2013.01); H01L 29/161 (2013.01); H01L 29/36 (2013.01); H01L 29/41783 (2013.01); H01L 29/41791 (2013.01); H01L 29/66795 (2013.01); H01L 29/785 (2013.01); H01L 21/0262 (2013.01); H01L 21/02532 (2013.01); H01L 21/02636 (2013.01);
Abstract
A semiconductor device includes a substrate, an isolation structure over the substrate, two fins over the substrate and protruding out of the isolation structure, and an epitaxial feature over the two fins. The epitaxial feature includes two lower portions and one upper portion. The two lower portions are over the two fins respectively. The upper portion is over the two lower portions and connects the two lower portions. The upper portion has a different dopant concentration than the two lower portions. A top surface of the upper portion is substantially flat.