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:
Jul. 20, 2021
Filed:
Sep. 13, 2019
Applicant:
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Inventors:
Assignee:
Taiwan Semiconductor Manufacturing Company, Ltd., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/78 (2006.01); H01L 29/66 (2006.01); H01L 21/02 (2006.01); H01L 29/161 (2006.01); H01L 29/165 (2006.01); H01L 29/08 (2006.01); H01L 29/16 (2006.01); H01L 29/24 (2006.01); H01L 29/267 (2006.01);
U.S. Cl.
CPC ...
H01L 29/7848 (2013.01); H01L 21/0262 (2013.01); H01L 21/02532 (2013.01); H01L 21/02576 (2013.01); H01L 29/0847 (2013.01); H01L 29/16 (2013.01); H01L 29/161 (2013.01); H01L 29/165 (2013.01); H01L 29/24 (2013.01); H01L 29/267 (2013.01); H01L 29/66628 (2013.01); H01L 29/66636 (2013.01); H01L 29/66795 (2013.01); H01L 29/785 (2013.01); H01L 29/7851 (2013.01); H01L 2924/13067 (2013.01);
Abstract
A source/drain region of a semiconductor device is formed using an epitaxial growth process. In an embodiment a first step comprises forming a bulk region of the source/drain region using a first precursor, a second precursor, and an etching precursor. A second step comprises cleaning the bulk region with the etchant along with introducing a shaping dopant to the bulk region in order to modify the crystalline structure of the exposed surfaces. A third step comprises forming a finishing region of the source/drain region using the first precursor, the second precursor, and the etching precursor.