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:
Dec. 17, 2019

Filed:

Jul. 06, 2017
Applicant:

Cree, Inc., Durham, NC (US);

Inventors:

Qingchun Zhang, Cary, NC (US);

Edward R. Van Brunt, Raleigh, NC (US);

Brett Hull, Raleigh, NC (US);

Scott Thomas Allen, Apex, NC (US);

Assignee:

Cree, Inc., Durham, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/872 (2006.01); H01L 29/66 (2006.01); H01L 29/06 (2006.01); H01L 29/16 (2006.01); H01L 29/36 (2006.01);
U.S. Cl.
CPC ...
H01L 29/872 (2013.01); H01L 29/0619 (2013.01); H01L 29/1608 (2013.01); H01L 29/6606 (2013.01); H01L 29/36 (2013.01);
Abstract

A Schottky diode includes a drift region, a channel in an upper portion of the drift region, and first and second adjacent blocking junctions in the upper portion of the drift region that define the channel therebetween. The drift region and channel are doped with dopants having a first conductivity type, and the first and second blocking junctions doped with dopants having a second conductivity type that is opposite the first conductivity type. The blocking junctions extend at least one micron into the upper portion of the drift region and are spaced apart from each other by less than 3.0 microns.


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