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. 22, 2020
Filed:
Mar. 13, 2019
Toshiba Memory Corporation, Minato-ku, Tokyo, JP;
Tadashi Miyakawa, Yokohama Kanagawa, JP;
Katsuhiko Hoya, Yokohama Kanagawa, JP;
TOSHIBA MEMORY CORPORATION, Tokyo, JP;
Abstract
According to an embodiment, a semiconductor memory device includes: memory cell arrays; word lines respectively connected to rows of each of the memory cell arrays; bit lines respectively connected to columns of each of the memory cell arrays; row selection circuits provided so as to respectively correspond to the memory cell arrays and connected to the word lines; and column selection circuits provided so as to respectively correspond to the memory cell arrays and connected to the bit lines. When an identical row address is received, the row selection circuits perform selection operations of word lines so that word line lengths from selected memory cells to the row selection circuits vary.