Patent ID: 8575590

Claim:
A nonvolatile semiconductor memory device comprising: a substrate having a memory control circuit module provided on a part of a surface portion, an interlayer insulating film formed on the substrate, a first interconnection layer having a plurality of interconnection lines arranged parallel to one another and provided on the interlayer insulating film, a second interconnection layer provided separately from the first interconnection layer above the interlayer insulating film and including a plurality of interconnection lines arranged parallel to one another in a direction that intersects with the first interconnection layer, and memory cell modules that are respectively provided in intersecting portions of the first interconnection layer and the second interconnection layer, so as to be sandwiched between the first interconnection layer and the second interconnection layer, and each of which has a structure in which a non-ohmic element layer having an insulating film and metal films sandwiching the insulating film and a variable resistance element layer configured to store a state of a difference in resistance as information are laminated, wherein the insulating film of the non-ohmic element layer includes plural layers whose electron barriers and dielectric constants are different.