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. 26, 2026
Filed:
Sep. 19, 2023
Sumitomo Electric Device Innovations, Inc., Yokohama, JP;
Rai Shu, Yokohama, JP;
Sumitomo Electric Device Innovations, Inc., Yokohama, JP;
Abstract
A semiconductor device includes a substrate, a semiconductor layer provided on the substrate, a gate electrode, a drain electrode, and a source electrode provided so as to dispose the gate electrode between the drain electrode and the source electrode, wherein via holes are provided in the substrate and the semiconductor layer, the via holes overlap with the source electrode when viewed from a thickness direction of the substrate, penetrate through the semiconductor layer and the substrate, and are arranged in an extending direction of the source electrode, the via holes include a first via hole closest to a first end of the gate electrode to which a signal is inputted, the first via hole is in contact with the source electrode with a first area, and the first area is the smallest of a plurality of areas in which the via holes are in contact with the source electrode.