Patent ID: 7767993

Claim:
A resistance change memory device comprising: an insulative substrate; first wiring lines formed above the insulative substrate; memory cells being formed over each the first wiring line so that one end is connected to each the first wiring line, each the memory cell having a stacked structure of a variable resistance element and a diode, the variable resistance element storing as information a resistance value; second wiring lines formed over the memory cells to commonly connect together the other end portions of the memory cells arrayed in a direction crossing the first wiring lines, and a sense amplifier circuit for reading information stored in the variable resistance element, wherein the variable resistance element comprises: a recording layer formed of a composite compound containing at least one transition element and a cavity site for housing a cation ion; and electrodes formed on the opposite sides of the recording layer, one of the electrodes serving as a cation source in a write or erase mode for supplying a cation to the recording layer to be housed in the cavity site therein.