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:
Jan. 19, 2021
Filed:
Sep. 09, 2019
Toshiba Memory Corporation, Tokyo, JP;
Bushnaq Sanad, Yokohama Kanagawa, JP;
Noriyasu Kumazaki, Kawasaki Kanagawa, JP;
Yuzuru Shibazaki, Fujisawa Kanagawa, JP;
TOSHIBA MEMORY CORPORATION, Tokyo, JP;
Abstract
According to one embodiment, a semiconductor memory device includes: a memory cell array including a first memory cell, a first word line, a first circuit coupled to the first word line, a first driver used for a write operation and a read operation, a second driver used for an erase operation, and a voltage generator. The first circuit includes: a second circuit capable of electrically coupling the first word line and a first interconnect; a third circuit capable of electrically coupling the first interconnect and a second interconnect; a fourth circuit capable of electrically coupling the second interconnect and the first driver in the write and read operations; and a fifth circuit capable of electrically coupling the second interconnect and the second driver in the erase operation.