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:
Sep. 02, 2025
Filed:
Sep. 13, 2022
Kioxia Corporation, Tokyo, JP;
Hisashi Harada, Yokkaichi, JP;
Keisuke Suda, Yokkaichi, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
According to one embodiment, a semiconductor memory device includes: a semiconductor layer arranged above a substrate in a first direction; a first interconnect layer between the substrate and the semiconductor layer; a second interconnect layer arranged adjacent to the first interconnect layer in a second direction; a plurality of memory pillars; and a first member between the first interconnect layer and the second interconnect layer. The semiconductor layer has, on a side of a second surface facing a first surface in contact with the first member, a first projecting portion projecting in the first direction and overlapping a part of an area in the first direction, the area being provided with the first interconnect layer and the first member.