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. 07, 2019
Filed:
Aug. 10, 2016
Applicant:
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Inventors:
Satoshi Takaya, Kawasaki, JP;
Hiroki Noguchi, Yokohama, JP;
Keiko Abe, Yokohama, JP;
Shinobu Fujita, Inagi, JP;
Assignee:
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/16 (2006.01); G11C 13/00 (2006.01);
U.S. Cl.
CPC ...
G11C 11/1675 (2013.01); G11C 11/1659 (2013.01); G11C 11/1693 (2013.01); G11C 13/0069 (2013.01); G11C 2013/0071 (2013.01);
Abstract
A nonvolatile semiconductor memory includes a resistance-change element having first and second terminals, a transistor having third and fourth terminals and a control terminal, the third terminal being connected to the second terminal, and a first driver electrically connected to the control terminal, applying a first potential to the control terminal in a first write operation, and applying a second potential larger than the first potential to the control terminal in a second write operation.