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:
Aug. 17, 2021
Filed:
Jan. 16, 2020
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Toshiba Electronic Devices & Storage Corporation, Minato-ku, JP;
Saya Shimomura, Komatsu, JP;
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Toshiba Electronic Devices & Storage Corporation, Minato-ku, JP;
Abstract
A semiconductor device includes a semiconductor part between first and second electrodes, and also includes a control electrode and a field plate between the semiconductor part and the second electrode. The control electrode is positioned between the field plate and the second electrode. The control electrode is electrically isolated from the semiconductor part by a first insulating film including first to third portions and from the second electrode by a second insulating film including fourth and fifth portions. The first portion is provided between the semiconductor part and the field plate electrode. The second portion is provided between the semiconductor part and the control electrode. The third portion is provided between the field plate electrode and the control electrode, and extends into the control electrode. The fourth portion is provided between the second and third portions. The fifth portion is provided between the third portion and the second electrode.