Patent ID: 8586978

Claim:
A non-volatile memory device, comprising: a first electrode; a diode-storage node formed on the first electrode, the diode-storage node including a p-type oxide layer directly formed on the first electrode and an n-type oxide layer directly formed on the p-type oxide layer; and a second electrode directly formed on the n-type oxide layer, wherein the diode-storage node is adapted to store information when a bias voltage is reversely applied so as to change an on-current value of the diode-storage node, wherein the diode-storage node includes a CuO layer and an InZnO layer, and the first and second electrodes include Pt, wherein the p-type oxide layer is formed of at least one material selected from a group comprising CuO, NiO, TiO 2 , HfO, ZrO, WO 3 , CoO, and Nb 2 O 5 , and the n-type oxide layer is formed of at least one material selected from a group comprising a Zn oxide, an In oxide, and a Zn—In composite oxides.