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:
Dec. 03, 2024
Filed:
Nov. 04, 2020
Sumitomo Electric Industries, Ltd., Osaka, JP;
Yu Saitoh, Osaka, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Abstract
A silicon carbide semiconductor device includes a silicon carbide substrate having a first principal surface and a second principal surface. The silicon carbide substrate includes a drift region, a body region, and a source region. A gate trench is provided on the first principal surface. The silicon carbide substrate further includes a first reduced-electric field region provided between a bottom surface and the second principal surface. The source region includes a first region and a second region, and the first region is interposed between a side surface and the second region. The silicon carbide semiconductor device further includes a contact electrode with an ohmic junction with the second region.