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:
Sep. 21, 2021
Filed:
Nov. 07, 2019
Applicant:
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Inventors:
Assignee:
Taiwan Semiconductor Manufacturing Company Limited, Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/60 (2006.01); H01L 27/02 (2006.01); H01L 29/78 (2006.01);
U.S. Cl.
CPC ...
H01L 27/0266 (2013.01); H01L 23/60 (2013.01); H01L 29/7827 (2013.01); H01L 2924/0002 (2013.01);
Abstract
An electrostatic discharge (ESD) protection circuit includes an input terminal, a transistor, and an output terminal. The input terminal is configured to receive an input signal. The transistor includes a first source/drain region, a second source/drain region, and a drift region that has a resistance in series between the first and second source/drain regions and that is configured to attenuate an ESD voltage in the input signal. The output terminal is connected to the second source/drain region.