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:
Aug. 16, 2011
Filed:
Jan. 13, 2011
Toshiaki Edahiro, Yokohama, JP;
Kazushige Kanda, Kawasaki, JP;
Naoya Tokiwa, Fujisawa, JP;
Takuya Futatsuyama, Yokohama, JP;
Koji Hosono, Fujisawa, JP;
Shigeo Ohshima, Kawasaki, JP;
Toshiaki Edahiro, Yokohama, JP;
Kazushige Kanda, Kawasaki, JP;
Naoya Tokiwa, Fujisawa, JP;
Takuya Futatsuyama, Yokohama, JP;
Koji Hosono, Fujisawa, JP;
Shigeo Ohshima, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
The present invention provides a method for writing data to a non-volatile memory device having first wirings and second wirings intersecting one another and memory cells arranged at each intersection therebetween, each of the memory cells having a variable resistive element and a rectifying element connected in series. According to the method, the second wirings are charged to a certain voltage not less than a rectifying-element threshold value, prior to a rise in a selected first wiring. Then, a selected first wiring is charged to a voltage required for writing or erasing, after which a selected second wiring is discharged.