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:
Jun. 10, 2008
Filed:
Jun. 29, 2005
Applicant:
Giovanni Richieri, Druento (To), IT;
Inventor:
Giovanni Richieri, Druento (To), IT;
Assignee:
International Rectifier Corporation, El Segundo, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/332 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for forming an ohmic contact on the back surface of a semiconductor body includes depositing a donor layer on the back surface of the semiconductor body followed by a sintering step to form a shallow intermetallic region capable of forming a low resistance contact with a contact metal.