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:
Dec. 02, 2003
Filed:
Jun. 12, 2002
Applicant:
Inventor:
Slawomir Skocki, Turin, IT;
Assignee:
International Rectifirer Corporation, El Segundo, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 3/1108 ;
U.S. Cl.
CPC ...
H01L 3/1108 ;
Abstract
A composite field ring for a Schottky diode has a low concentration deep portion to increase breakdown voltage withstand and a high concentration, shallow region to enable minority carrier injection during high forward current conduction. The composite ring permits a reduction in the thickness of the epitaxially formed layer which receives the Schottky barrier metal.