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:
Jul. 14, 2015
Filed:
Feb. 13, 2013
Panasonic Corporation, Osaka, JP;
Satoru Fujii, Osaka, JP;
Takumi Mikawa, Shiga, JP;
Abstract
A variable resistance layer includes a first variable resistance layer comprising a first metal oxide that is oxygen deficient and a second variable resistance layer comprising a second metal oxide having a degree of oxygen deficiency that is different from that of the first metal oxide, wherein the second variable resistance layer includes a non-metal element A that is different from oxygen, x<(y+z) is satisfied where a composition of the first variable resistance layer is represented by MOand a composition of the second variable resistance layer is represented by NOA, the second variable resistance layer has a higher resistivity than a resistivity of the first variable resistance layer, and a film density of the second variable resistance layer is lower than a theoretical film density of the second metal oxide which has a stoichiometric composition.