Patent ID: 9236124
Filing Date: 2016-01-12
CPC Classification: G11C,H01L

Claim Text:
1. A nonvolatile memory device comprising: a plurality of first wirings that is disposed in first and second directions crossing each other and extends in a third direction perpendicular to the first and second directions; a plurality of second wirings that extends in the second direction and is provided at a predetermined interval in the third direction of the first wirings; and memory cells that are disposed at positions where the first and second wirings cross each other, so as to be interposed between the first and second wirings, wherein the memory cell includes a variable resistive layer of which a resistance state changes according to an electrical signal to be applied, the first wiring includes a metal plug layer and a barrier metal film that is provided between the metal plug layer and the variable resistive layer, and a standard electrode potential of a metal that forms the barrier metal film is higher than a standard electrode potential of a metal that forms the variable resistive layer.