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:
Feb. 18, 2020
Filed:
Aug. 31, 2017
Toshiba Memory Corporation, Minato-ku, JP;
Toshiba Memory Coporation, Minato-ku, JP;
Abstract
A semiconductor memory device includes a semiconductor substrate, a first insulating film provided above the semiconductor substrate, a first conductive film provided above the first insulating film, a plurality of first electrode films provided above the first conductive film and stacked to be separated from each other, a semiconductor member extending in a stacking direction of the plurality of first electrode films, and a charge storage member provided between the semiconductor member and one of the plurality of first electrode films. The first conductive film includes a main portion disposed at least below the plurality of first electrode films, and a fine line portion extending from the main portion toward an end surface side of the semiconductor substrate. A width of the fine line portion is narrower than a width of the main portion.