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:
Sep. 08, 2026
Filed:
Mar. 27, 2023
Fuji Electric Co., Ltd., Kawasaki, JP;
Taichi Karino, Matsumoto-city, JP;
Hitoshi Sumida, Matsumoto-city, JP;
FUJI ELECTRIC CO., LTD., Kawasaki, JP;
Abstract
A semiconductor device includes: a semiconductor substrate; a first insulating film provided on one surface of the semiconductor substrate; a first resistance layer including polysilicon provided on the first insulating film; a second insulating film provided on the first resistance layer; a second resistance layer including polysilicon provided on the second insulating film so as to overlap with the first resistance layer; a third insulating film provided on the second resistance layer; a first electrode provided over the third insulating film and electrically connected to the second resistance layer; and a second electrode electrically connected to the first resistance layer, wherein the first resistance layer and the second resistance layer each include a body part and a first contact part having a higher impurity concentration than the body part, and the respective first contact parts are in contact with each other.