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:
Jul. 04, 2006
Filed:
May. 05, 2003
Applicants:
Ulrich Kelberlau, Lampertheim, DE;
Nathan Zommer, Los Altos, CA (US);
Inventors:
Ulrich Kelberlau, Lampertheim, DE;
Nathan Zommer, Los Altos, CA (US);
Assignee:
IXYS Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/861 (2006.01);
U.S. Cl.
CPC ...
Abstract
A power device includes a substrate assembly including an upper surface and a lower surface. The substrate assembly includes a first layer and a second layer. The first layer overlies the second layer and has different conductivity than the second layer. A first electrode is provided proximate the upper surface. A second electrode is provided proximate the upper surface and is spaced apart from the first electrode. The second layer is configured to provide a current path between the first and second electrodes.