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:
Aug. 25, 2026
Filed:
Jan. 17, 2024
Rohm Co., Ltd., Kyoto, JP;
Shusaku Fujie, Kyoto, JP;
ROHM CO., LTD., Kyoto, JP;
Abstract
A semiconductor device includes a chip having a main surface, first potential regions formed in a surface layer portion of the main surface, the second at a distance from the first potential region; a first conductivity type drift region between the first and second potential regions in the surface layer portion; RESURF arrays each including first conductivity type RESURF regions in a surface layer portion of the drift region at a distance from each other in a first direction to expose part of the drift region from the main surface, each RESURF region having an impurity concentration exceeding that of the drift region, the RESURF arrays being at a distance from each other in a second direction intersecting the first direction; a field insulating film covering the drift region and the RESURF arrays on the main surface; and a field electrode on the field insulating film covering the RESURF arrays.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile