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:
May. 13, 2025
Filed:
Feb. 28, 2022
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Shotaro Baba, Kanazawa Ishikawa, JP;
Hiroaki Katou, Nonoichi Ishikawa, JP;
Saya Shimomura, Komatsu Ishikawa, JP;
Tatsuya Nishiwaki, Yokohama Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Abstract
According to one embodiment, a semiconductor device includes a first electrode, a second electrode, and a semiconductor layer between the first electrode and the second electrode. A third electrode is in the semiconductor layer. The third electrode extends in a second direction orthogonal to the first direction. A plurality of fourth electrodes are connected to the second electrode and extend in the first direction into the semiconductor layer. The fourth electrodes are spaced from one another along the second direction. A fifth electrode that is electrically isolated from the first electrode and between the first electrode and the plurality of fourth electrodes. The fifth electrode extends in the second direction and contacts the lower ends of the plurality of fourth electrodes in the trench.