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. 02, 2025
Filed:
Jul. 24, 2023
Taiwan Semiconductor Manufacturing Company, Ltd., Hsin-Chu, TW;
Jing-Ying Chen, Taipei, TW;
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Abstract
An ESD protection device protects a circuit from TLPs between a first terminal and a second terminal. The device includes an NPN discharge structure and a PNP triggering device. The first terminal is coupled to the p-doped emitter and the n-doped base of the PNP triggering device and also the n-doped emitter of the NPN discharge structure. The second terminal is coupled to the n-doped collector of the NPN discharge structure. The p-doped collector of the PNP triggering device is coupled to the p-doped base of the NPN discharge structure. A TLP causes base-collector junction breakdown in the PNP triggering device, which results in a current through the PNP triggering device. That current is injected into the base of the NPN discharge structure, which results in a larger discharge current through the NPN discharge structure. The device provides high holding voltage ESD protection device with snapback.