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. 30, 2025
Filed:
May. 26, 2021
Sumitomo Electric Industries, Ltd., Osaka, JP;
Takeyoshi Masuda, Osaka, JP;
Ryouji Kosugi, Tsukuba, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
A super junction layer alternately has a first region and a second region. An element layer is provided above the super junction layer. The first region has a first portion and a second portion located between the first portion and a first main surface. The second region has a third portion in contact with the first portion and a fourth portion in contact with the second portion and located between the third portion and the first main surface. In a cross section perpendicular to the second main surface and parallel to a direction from the first region toward the second region, a width of the second portion is larger than a width of the first portion, a width of the fourth portion is smaller than a width of the third portion.