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:
Apr. 18, 2023
Filed:
Mar. 01, 2022
Fuji Electric Co., Ltd., Kanagawa, JP;
Kosuke Yoshida, Matsumoto, JP;
FUJI ELECTRIC CO., LTD., Kanagawa, JP;
Abstract
There is provided a semiconductor device including: an emitter region of a first conductivity type, a contact region of a second conductivity type, provided on the front surface side of the semiconductor substrate; one or more first trench portions which are electrically connected to a gate electrode and are in contact with emitter regions; a second trench portion which is adjacent to one of the one or more first trench portions, is electrically connected to the gate electrode, is in contact with the contact region of the second conductivity type, and is not in contact with the emitter region; and a dummy trench portion which is adjacent to one of the one or more first trench portions and is electrically connected to an emitter electrode, in which the contact region in contact with the second trench portion is in contact with the emitter electrode.