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:
Nov. 02, 2021
Filed:
Sep. 13, 2019
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Toshiba Electronic Devices & Storage Corporation, Minato-ku, JP;
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION, Minato-ku, JP;
Abstract
A semiconductor device of an embodiment includes first and second electrodes; first and second gate electrodes; and semiconductor layer including first and second planes, the semiconductor layer including a first semiconductor region of first conductivity type including first portion, second portion having a carrier concentration higher than the first portion, and third portion having a carrier concentration lower than the second portion; a second semiconductor region of second conductivity type between the first semiconductor region and the first plane and facing the first gate electrode; a third semiconductor region of first conductivity type between the second semiconductor region and the first plane and contacting the first electrode; a fourth semiconductor region of second conductivity type between the first semiconductor region and the second plane and facing the second gate electrode; and a fifth semiconductor region of first conductivity type between the fourth semiconductor region and the second plane.