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:
Feb. 05, 2013
Filed:
Jun. 17, 2010
Katsuyuki Fujita, Yokohama, JP;
Kenji Tsuchida, Kawasaki, JP;
Katsuyuki Fujita, Yokohama, JP;
Kenji Tsuchida, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, a semiconductor memory device includes a variable resistance element configured to store data '0' and data '1' in accordance with a change in resistance value, a current generator configured to generate a reference current for determining data of the variable resistance element, and having an admittance middle between an admittance of a variable resistance element storing data “0” and an admittance of a variable resistance element storing data “1”, and a sense amplifier includes a first input terminal connected to the variable resistance element and a second input terminal connected to the current generator, and configured to compare currents of the first input terminal and the second input terminal.