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:
Nov. 11, 2025
Filed:
Dec. 27, 2021
Fuji Electric Co., Ltd., Kawasaki, JP;
FUJI ELECTRIC CO., LTD., Kanagawa, JP;
Abstract
Provided is a semiconductor device which includes a semiconductor substrate including a transistor portion and a diode portion. The transistor portion includes an injection suppression region that suppresses injection of a carrier of a second conductivity type at an end portion on the diode portion side in a top view of the semiconductor substrate. Both the transistor portion and the diode portion include a base region of a second conductivity type on a front surface of the semiconductor substrate, the transistor portion further includes an emitter region of a first conductivity type and an extraction region of a second conductivity type having a higher doping concentration than the base region on the front surface of the semiconductor substrate, and the injection suppression region is not provided with the emitter region and the extraction region.