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. 06, 2021
Filed:
Aug. 27, 2019
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION, Tokyo, JP;
Abstract
A semiconductor device includes a semiconductor layer on a first electrode. The semiconductor layer includes a first region of a first type, a second region of a second type, a third region of the second type, and a fourth region of the first type. The second region is above the first region. The third region surrounds the second region. The fourth region surrounds the third region. The second electrode includes a first portion above the second region and a second portion surrounding the first portion. The third electrode surrounds the second electrode and is electrically connected to the fourth region. The semi-insulating layer is electrically connected to the second electrode and the third electrode. A first end portion of the first insulating layer is above the third region.