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:
Dec. 19, 2023
Filed:
Oct. 26, 2021
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Chia-Lin Hsu, Hsinchu, TW;
Ming-Fu Tsai, Hsinchu, TW;
Yu-Ti Su, Hsinchu, TW;
Kuo-Ji Chen, Hsinchu, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., Hsinchu, TW;
Abstract
An electrostatic discharge (ESD) circuit includes an ESD detection circuit, a clamp circuit and an ESD assist circuit. The ESD detection circuit is coupled between a first and a second node. The first node has a first voltage. The second node has a second voltage. The clamp circuit includes a first transistor having a first gate, a first drain, a first source and a first body terminal. The first gate is coupled to at least the ESD detection circuit by a third node. The first drain is coupled to the second node. The first source and the first body terminal are coupled together at the first node. The ESD assist circuit is coupled between the first node and the third node, and is configured to clamp a third voltage of the third node at the first voltage during an ESD event at the first node or the second node.