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:
Jul. 08, 2025
Filed:
Feb. 28, 2022
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Akira Yoshioka, Yokohama Kanagawa, JP;
Toru Sugiyama, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Abstract
A nitride semiconductor device includes a conductive substrate, a nitride semiconductor layer on the substrate, first and second pads disposed above the semiconductor layer and connected to the semiconductor layer, first and second electrodes respectively connected to the first and second pads and extending on the semiconductor layer, a first control electrode extending between the first and second electrodes, and a guard ring disposed on the semiconductor layer, connected to the substrate, and surrounding a region in which the first and second pads, the first and second electrodes and the first control electrode are disposed such that a first capacitor is formed by the guard ring and the first pad and a second capacitor is formed by the guard ring and the second pad.