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:
Apr. 30, 2024
Filed:
Feb. 22, 2021
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Abstract
An ESD protection device includes a PN diode formed in a semiconductor body. The PN diode has a first contact coupled to a metal structure on a front side of the semiconductor body and a second contact coupled to a metal structure on a back side of the semiconductor body. The metal coupled to the first contact is spaced apart from the metal coupled to the second contact by a thickness of the semiconductor body. This spacing greatly reduces the capacitance associated with the metal structures, which can substantially reduce the overall capacitance added to an I/O channel by the ESD protection device and thereby improve the performance of a high-speed circuit that uses the I/O channel.