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. 12, 2014
Filed:
Feb. 22, 2013
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Takahiro Morikawa, Ibaraki, JP;
Toshimichi Shintani, Ibaraki, JP;
Abstract
A technique capable of improving performances of a semiconductor memory device provided with a recording film having a super lattice structure is provided. The semiconductor memory device records information by changing an electric resistance of a recording film by use of a change in an atomic arrangement of the recording film. Moreover, the recording film is provided with a stacked layer portion in which a first crystal layer and a second crystal layer made of chalcogen compounds having respectively different compositions are stacked, an orientation layer that enhances an orientation of the stacked layer portion, and an adhesive layer that improves the flatness of the orientation layer.