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:
May. 29, 2012
Filed:
Apr. 14, 2009
Hiroyasu Kawano, Kawasaki, JP;
Keiji Shono, Kawasaki, JP;
Manabu Gomi, Nagoya, JP;
Takeshi Yokota, Nagoya, JP;
Hiroyasu Kawano, Kawasaki, JP;
Keiji Shono, Kawasaki, JP;
Manabu Gomi, Nagoya, JP;
Takeshi Yokota, Nagoya, JP;
Fujitsu Limited, Kawasaki, JP;
National University Corporation Nagoya Institute of Technology, Nagoya, JP;
Abstract
A resistance variable element is provided, which is capable of performing bipolar operation by a specified mechanism and usable as a memory. The resistance variable element has a laminated structure including an electrode, another electrode, an oxide layer between the electrodes, and an oxide layer in contact with the oxide layer between the oxide layer and the electrode. The oxide layer is switchable from the low-resistance state to the high-resistance state by donating oxygen ions to the oxide layer, and from the high-resistance state to the low-resistance state by accepting oxygen ions from the oxide layer. The oxide layer is switchable from the low-resistance state to the high-resistance state by accepting oxygen ions from the oxide layer, and from the high-resistance state to the low-resistance state by donating oxygen ions to the oxide layer.