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.:

US 9041054 B1

Date of Patent:

May. 26, 2015

Filed:

Feb. 14, 2014

High holding voltage electrostatic discharge protection device

Applicant:

Sofics Bvba, Gistel, BE;

Inventors:

Sven Van Wijmeersch, Brakel, BE;

Olivier Marichal, Sint-Niklaas, BE;

Assignee:

Sofics BVBA, Gistel, BE;

Attorney:

Volpe and Koenig, P.C.

Primary Examiner:

Selim Ahmed

Int. Cl.

CPC ...

H01L 23/60 (2006.01); H01L 29/87 (2006.01); H01L 27/02 (2006.01);

U.S. Cl.

CPC ...

H01L 29/87 (2013.01); H01L 27/0262 (2013.01);

Abstract

A high holding voltage (HV) electrostatic discharge (ESD) protection circuit comprises a silicon controlled rectifier (SCR) device and compensation regions located within the length between the anode and cathode (LAC) of the SCR device which increase the holding voltage of the SCR device. The compensation regions may introduce negative feedback mechanisms into the SCR device which may influence the loop gain of the SCR and cause it to reach regenerative feedback at a higher holding voltage.

Find Patent Forward Citations

Van Wijmeersch, Sven. (2015). High holding voltage electrostatic discharge protection device (U.S. Patent No. 9041054). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9041054

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