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:
Mar. 06, 2018
Filed:
Mar. 10, 2016
Toshiba Memory Corporation, Minato-ku, JP;
Takahiko Sasaki, Nerima, JP;
TOSHIBA MEMORY CORPORATION, Minato-ku, JP;
Abstract
A semiconductor memory device includes a memory cell array having first wires, a second wire, and memory cells connected to the first and second wires, and a control circuit that can apply writing voltages to the second wire. One of the memory cells connected to the selected second wire and a selected first wire is a selected memory cell. One of the memory cells connected to the selected second wire and an unselected first wire is a semi-selected memory cell. When writing data into the selected memory cell, the control circuit selects one from the writing voltages and applies the one writing voltage to a third wire connected to the selected second wire. The control circuit selects the one writing voltage, based on a first current flowing through the second wire when each of the memory cells connected to the selected second wire are set as semi-selected memory cells.