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:
Oct. 19, 2021
Filed:
Feb. 27, 2020
Kioxia Corporation, Tokyo, JP;
Hiroyuki Hara, Fujisawa Kanagawa, JP;
Hiroyuki Takenaka, Kamakura Kanagawa, JP;
Akihiko Chiba, Yokohama Kanagawa, JP;
KIOXIA CORPORATION, Tokyo, JP;
Abstract
A semiconductor memory device includes first and second wirings extending in a first direction and spaced apart from each other in the first direction, third wirings above the first and second wirings and extending in a second direction, fourth and fifth wirings above the third wirings, extending in the first direction, and spaced apart from each other in the second direction, a plurality of memory cells between each third wiring and each of first, second, fourth, and fifth wirings, voltage application circuits, connection conductors between the voltage application circuits and the wirings, and connection wirings that electrically connect the fourth and fifth wirings to the voltage application circuits. The voltage application circuits are arranged so that a non-selected voltage application circuit is under a space between the first and second wirings, and a selected voltage application circuit is under the first wiring.