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:
Sep. 17, 2024
Filed:
Apr. 30, 2020
Applicant:
Wolfspeed, Inc., Durham, NC (US);
Inventors:
Daniel Jenner Lichtenwalner, Raleigh, NC (US);
Woongsun Kim, Cary, NC (US);
Assignee:
Wolfspeed, Inc., Durham, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/088 (2006.01); H01L 23/528 (2006.01); H01L 23/532 (2006.01); H01L 29/10 (2006.01); H01L 29/16 (2006.01); H01L 29/36 (2006.01); H01L 29/78 (2006.01);
U.S. Cl.
CPC ...
H01L 27/088 (2013.01); H01L 23/528 (2013.01); H01L 23/53257 (2013.01); H01L 29/1095 (2013.01); H01L 29/1608 (2013.01); H01L 29/36 (2013.01); H01L 29/7813 (2013.01);
Abstract
Power switching devices include a semiconductor layer structure, a plurality of unit cell transistors that are electrically connected in parallel, each unit cell transistor including a gate finger that has a longitudinal axis that extends in a first direction on the semiconductor layer structure, the gate fingers spaced apart from each other along a second direction, and a gate connector having a longitudinal axis that extends in the second direction, the gate connector connected to the gate fingers of the plurality of unit cell transistors.