Patent ID: 7589364

Claim:
A non-volatile memory element, comprising: a first interlayer insulation layer having a first through-hole; a second interlayer insulation layer having a second through-hole formed on the first interlayer insulation layer with at least a part of the second through-hole overlapping at least a part of the first through-hole; a bottom electrode provided in the first through-hole; at least one phase change material layer, at least a part of the phase change material layer being provided in the second through-hole; a top electrode provided on the second interlayer insulation layer; and a thin-film insulation layer formed between the bottom electrode and the phase change material layer, the thin-film insulation layer having a pore through which the bottom electrode and the phase change material layer are electrically connected, the pore being smaller in diameter than the first through-hole and the second through-hole, wherein the bottom electrode has a diameter that is smaller than the diameter of the second through-hole, the thin-film insulation layer is thinner than the phase change material layer, and the thin-film insulation layer is provided in contact with an upper surface of the second interlayer insulation layer and an inside wall of the second through-hole.