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:
Oct. 25, 2016

Filed:

Jan. 11, 2013
Applicant:

Fairchild Semiconductor Corporation, San Jose, CA (US);

Inventors:

Martin Domeij, Sollentuna, SE;

Benedetto Buono, Solna, SE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/66 (2006.01); H01L 29/10 (2006.01); H01L 29/16 (2006.01); H01L 29/732 (2006.01); H01L 29/73 (2006.01);
U.S. Cl.
CPC ...
H01L 29/66068 (2013.01); H01L 29/1004 (2013.01); H01L 29/1608 (2013.01); H01L 29/73 (2013.01); H01L 29/732 (2013.01);
Abstract

In one general aspect, a silicon carbide bipolar junction transistor (BJT) can include a collector region, a base region on the collector region, and an emitter region on the base region. The silicon carbide BJT can include a base contact electrically contacting the base region where the base region having an active part interfacing the emitter region. The silicon carbide BJT can also include an intermediate region of semiconductor material having at least a part extending from the active part of the base region to the base contact where the intermediate region having a doping level higher than a doping level of the active part of the base region.


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