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:
Oct. 11, 2016
Filed:
Sep. 18, 2013
Applicant:
Nxp B.v., Eindhoven, NL;
Inventor:
Mukesh Nair, Bangalore, IN;
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 9/00 (2006.01); H01L 27/02 (2006.01);
U.S. Cl.
CPC ...
H01L 27/0266 (2013.01);
Abstract
An input/output (IO) circuit including: an IO driver circuit; an electrostatic discharge (ESD) protection semiconductor switch with a first input configured to receive an ESD, a second input connected to an ESD rail, and a switch control input; an ESD trigger circuit connected to the switch control input, wherein the ESD trigger circuit is configured to produce a trigger signal to close the protection semiconductor switch when the ESD detection circuit detects an ESD; and a bias circuit configured to provide a back bias signal to an isolated well of the ESD protection semiconductor switch when IO circuit is in normal operation.