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. 19, 2021
Filed:
Feb. 28, 2019
Toshiba Memory Corporation, Minato-ku, JP;
Mikiko Yagi, Ama, JP;
Toshiba Memory Corporation, Minato-ku, JP;
Abstract
A semiconductor memory device according to the embodiments includes a first laminated body, a second laminated body, an intermediate insulation layer, and a columnar body. The intermediate insulation layer is positioned between the first laminated body and the second laminated body. A plurality of conductive layers of the second laminated body include a first conductive layer which is positioned closest to the intermediate insulation layer among the plurality of conductive layers of the second laminated body. The first conductive layer has a main body part having a first end surface facing the columnar body, and a protrusion part which protrudes from the main body part to the first laminated body, and has a second end surface facing the columnar body. The first end surface and the second end surface are continuous with each other.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile