Patent ID: 7623370

Claim:
A resistance change memory device comprising: a substrate; first wiring lines formed above the substrate; second wiring lines formed above the substrate to cross the first wiring lines as being electrically insulated therefrom; and memory cells disposed at respective crossing points of the first wiring lines and the second wiring lines, one ends thereof being connected to the first wiring lines while the other ends are connected to the second wiring lines, wherein the memory cell comprises: a variable resistance element for storing as information a resistance value; and a Schottky diode connected in series to the variable resistance element, and wherein the variable resistance element comprises a recording layer composed of a composite compound containing at least two types of cation elements, at least one type of the cation element being a transition element having “d”-orbit, in which electrons are incompletely filled, the shortest distance between adjacent cation elements being 0.32 nm or less.