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:
Jul. 15, 2025
Filed:
Aug. 19, 2021
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Saya Shimomura, Komatsu Ishikawa, JP;
Hiroaki Katou, Nonoichi Ishikawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Abstract
A semiconductor device includes first to third electrodes, a semiconductor part, a control electrode and an insulating body. The second electrode is opposite to the first electrode. The semiconductor part is provided between the first electrode and the second electrode. The semiconductor part includes first and second trenches next to each other in a front side facing the second electrode. The second trench has a first width in a first direction directed from the first trench toward the second trench. The third electrode and the control electrode are provided inside the first trench. Another third electrode and the insulating body is provided inside the second trench. The insulating body is positioned in the second trench between said another third electrode and the second electrode. The insulating body has a second width in the first direction. The second width is equal to the first width of the second trench.