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. 20, 2021
Filed:
Mar. 06, 2020
Kioxia Corporation, Tokyo, JP;
Yuki Inuzuka, Yokohama Kanagawa, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
A semiconductor memory device of an embodiment has stacked semiconductor memories, each semiconductor memory including first lines intersecting with second lines, and resistive change elements each disposed between one of the first lines and one of the second lines. In two of the semiconductor memories adjacent to each other in the stacking direction, either two of the first lines or two of the second lines are disposed along and in contact with each other. A first contact electrically connected to the second line of the uppermost semiconductor memory passes through a region between the second lines of each of the semiconductor memories located below the uppermost semiconductor memory, and a second contact electrically connected to the second line of each of the semiconductor memories located at an intermediate level passes through a region between the second lines of each of the semiconductor memories located below the intermediate level.