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:
Jul. 17, 2018
Filed:
Dec. 02, 2014
Applicant:
Texas Instruments Incorporated, Dallas, TX (US);
Inventors:
John Eric Kunz, Jr., Allen, TX (US);
Farzan Farbiz, Dallas, TX (US);
Aravind C. Appaswamy, Dallas, TX (US);
Akram A. Salman, Plano, TX (US);
Assignee:
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H02H 9/04 (2006.01); H01L 25/00 (2006.01); H01L 27/02 (2006.01);
U.S. Cl.
CPC ...
H01L 25/00 (2013.01); H01L 27/0248 (2013.01); H01L 27/0285 (2013.01); H02H 9/046 (2013.01); H01L 2924/0002 (2013.01);
Abstract
An electrostatic discharge (ESD) protection circuit includes a substrate having a semiconductor surface that the ESD protection circuit formed thereon. A first ESD cell is stacked in series with at least a second ESD cell. An active shunt transistor is electrically in parallel with the first ESD cell or second ESD cell, where the active shunt includes a control node. A trigger circuit has a trigger input and a trigger output, wherein the trigger output is coupled to the control node.