Patent ID: 8835897

Claim:
A nonvolatile memory device comprising: a first wire embedded in a first groove that is formed in a first insulating film and extends in a first direction; a second insulating film formed above the first insulating film; a wiring material film that constitutes a second wire, which is embedded in a second groove that is formed in the second insulating film and extends in a second direction, and is formed of a single material; and a variable resistance memory cell including a resistance change element and a rectifying element arranged to be held between the first wire and the wiring material film in a position where the first wire and the wiring material film intersect, the variable resistance memory cell being embedded in the first groove, and an upper surface of the variable resistance memory cell is lower than an upper surface of the first insulating film; and a barrier metal having a U-shape directly above the variable resistance memory cell, wherein the variable resistance memory cell has a rectangular shape with a length of the rectangular shape in the second direction that is same as a width of the first wire, and a length of the rectangular shape in the first direction that is same as a width of the second wire, and a lowest portion of a lower surface of the wiring material film is lower than the upper surface of the first insulating film, and wherein the wiring material film is disposed in an inside of the U-shape.