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:
Jun. 09, 2015
Filed:
Mar. 16, 2012
Satoshi Konagai, Mie, JP;
Satoshi Konagai, Mie, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, in a nonvolatile semiconductor memory device, a first line is disposed on a semiconductor substrate. A first memory cell is disposed on a side opposite to the semiconductor substrate with respect to the first line. A second line intersects with the first line via the first memory cell. A second memory cell is disposed on a side opposite to the semiconductor substrate with respect to the second line. A third line intersects with the second line via the second memory cell. The first memory cell has a first resistance change layer and a first rectification layer. The second memory cell has a second resistance change layer and a second rectification layer. A composition of the first resistance change layer is different from a composition of the second resistance change layer.