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. 01, 2026
Filed:
Feb. 02, 2024
Rohm Co., Ltd., Kyoto, JP;
Kentaro Nasu, Kyoto, JP;
ROHM CO., LTD., Kyoto, JP;
Abstract
A semiconductor device includes a first conductivity type first semiconductor region formed in a region on the first main surface side in a chip, a second conductivity type second semiconductor region formed in a region on the second main surface side in the chip, a first groove structure including a first groove formed in the first main surface while passing through the first semiconductor region so as to partition the first semiconductor region into a first region and a second region as viewed in cross-section, a control insulating film that covers a wall surface of the first groove, and a control electrode embedded in the first groove while sandwiching the control insulating film so as to control a channel in the second semiconductor region, a first electrode electrically connected to the first semiconductor region in the first region, and a second groove structure including a second groove formed in the first main surface while passing through the first semiconductor region in the second region, and a second electrode embedded in the second groove so as to form a current path via the channel between the first electrode and the second electrode.