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:
Jul. 01, 2025
Filed:
Aug. 24, 2021
Kioxia Corporation, Tokyo, JP;
Daigo Ichinose, Nagoya, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
According to one embodiment, a semiconductor storage device includes a stacked body, a columnar body, a conductive member, a plate-like portion, and a dividing portion. In the stacked body, a plurality of conductive layers and a plurality of insulating layers are alternately stacked one by one, and a stepped portion including the conductive layers is formed to be faced to an end in a first direction. The columnar body penetrates the stacked body, and includes a memory cell formed in a portion facing the conductive layer. The conductive member is electrically connected to the columnar body below the stacked body, and extends to a region laterally below the stacked body beyond the stepped portion in the first direction. The plate-like portion extends in a stacking direction of the stacked body in a lateral region of the stacked body to reach the conductive member, and extends in a second direction intersecting the first direction. The dividing portion is disposed in the conductive member on the stepped portion side with respect to the plate-like portion, partially divides the conductive member, and includes an insulating material.