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:
Nov. 22, 2016
Filed:
Mar. 10, 2015
Kabushiki Kaisha Toshiba, Minato-ku, Tokyo, JP;
Fumiyoshi Matsuoka, Kawasaki Kanagawa, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
Abstract
According to one embodiment, a semiconductor memory device includes a cell array including a plurality of memory cells, a reference circuit, a sense amplifier for sensing a read current flowing through the memory cell, and a reference current flowing through the reference circuit, a write driver for writing data to the memory cell, a sub cell area including the cell array, the sense amplifier, and the write driver, a memory area including a plurality of sub cell areas, and a control circuit for supplying first write data to the sub cell area including the sense amplifier which performs a first read operation of supplying the read current to a selected memory cell without supplying the reference current.