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:
Apr. 30, 2024

Filed:

Mar. 31, 2021
Applicant:

Taiwan Semiconductor Manufacturing Company Ltd., Hsinchu, TW;

Inventors:

Ming-Fang Lai, Hsinchu, TW;

Liang-Yu Su, Yunlin County, TW;

Hang Fan, Shanghai, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02H 9/04 (2006.01); H01L 27/02 (2006.01); H01L 27/06 (2006.01); H03K 17/081 (2006.01); H01L 29/20 (2006.01); H01L 29/778 (2006.01);
U.S. Cl.
CPC ...
H01L 27/0266 (2013.01); H01L 27/0285 (2013.01); H01L 27/0288 (2013.01); H01L 27/0605 (2013.01); H01L 27/0629 (2013.01); H02H 9/046 (2013.01); H03K 17/08104 (2013.01); H01L 29/2003 (2013.01); H01L 29/778 (2013.01); H02H 9/04 (2013.01); H02H 9/044 (2013.01);
Abstract

The present disclosure provides a electrostatic discharge (ESD) protection circuit, coupled between a first reference terminal and a second reference terminal; the ESD protection circuit includes a first voltage divider, a second voltage divider, a first trigger circuit and a second trigger circuit. The first trigger circuit includes a first terminal and a second terminal, wherein the first terminal is coupled to the first reference terminal, and the second terminal is coupled to the second reference terminal via the first voltage divider. The second trigger circuit includes a first terminal and a second terminal, wherein the first terminal is coupled to the second reference terminal, the second terminal is coupled to the first reference terminal via the second voltage divider, and the second trigger circuit and the first trigger circuit are in parallel connection.


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