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:
Sep. 17, 2013
Filed:
Feb. 08, 2012
Applicants:
Benjamin Van Camp, Zwijndrecht, BE;
Geert Wybo, Delhi, IN;
Stefaan Verleye, Beernem, BE;
Inventors:
Assignee:
Sofics BVBA, Gistel, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides an ESD protection device having at least one diode in a well of first conductivity type formed in a substrate of second conductivity type. The circuit further includes a guard-band of the first conductivity surrounding at least a portion of the diode, thus forming an NPN transistor between the diode cathode, the substrate and the guard-band.