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:
Jan. 11, 2022
Filed:
Aug. 02, 2019
Toshiba Memory Corporation, Minato-ku, JP;
Toshiba Memory Corporation, Minato-ku, JP;
Abstract
A semiconductor memory device according to an embodiment includes a substrate, first and second conductive layers, first and second pillars, and a first member. The first conductive layer includes a first portion, a second portion, and a third portion above the second portion. The second conductive layers are stacked above the first conductive layer. The first pillar includes a first semiconductor layer in contact with the first portion in a direction crossing the stacked direction. The second pillar is provided to penetrate the second conductive layers and the third portion in the stacked direction. The first member is provided between the first and second pillars and between the second and third portions.