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.

Date of Patent:
May. 13, 2014

Filed:

Sep. 06, 2012
Applicants:

Karl D. Hobart, Upper Marlboro, MD (US);

Francis J. Kub, Arnold, MD (US);

Mario Ancona, Alexandria, VA (US);

Eugene A. Imhoff, Washington, DC (US);

Inventors:

Karl D. Hobart, Upper Marlboro, MD (US);

Francis J. Kub, Arnold, MD (US);

Mario Ancona, Alexandria, VA (US);

Eugene A. Imhoff, Washington, DC (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/74 (2006.01);
U.S. Cl.
CPC ...
Abstract

Silicon carbide PiN diodes are presented with reduced temperature coefficient crossover points by limited p type contact area to limit hole injection in the n type drift layer in order to provide a lower current at which the diode shifts from negative temperature coefficient to a positive temperature coefficient of forward voltage for mitigating thermal runaway.


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