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. 26, 2016
Filed:
Sep. 22, 2014
Applicant:
United Microelectronics Corp., Hsin-Chu, TW;
Inventors:
Lu-An Chen, Hsinchu County, TW;
Tien-Hao Tang, Hsinchu, TW;
Assignee:
UNITED MICROELECTRONICS CORP., Science-Based Industrial Park, Hsin-Chu, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02H 1/00 (2006.01); H02H 3/22 (2006.01); H02H 9/02 (2006.01); H02H 3/20 (2006.01); H02H 3/02 (2006.01);
U.S. Cl.
CPC ...
H02H 3/20 (2013.01); H02H 1/00 (2013.01); H02H 3/02 (2013.01);
Abstract
An electrostatic discharge (ESD) protection device is disclosed. The ESD protection device comprises a trigger circuit, a switch, and an output buffer. When an ESD event occurs, the trigger circuit turns on the switch. One part of the current of the electrostatic discharge (ESD) event may be routed to a ground through the switch from the output buffer coupled to the output pad.