Patent ID: 9379322
Filing Date: 2016-06-28
CPC Classification: G11C,H01L

Claim Text:
1. A nonvolatile memory comprising: a substrate; top electrodes positioned on top in the memory: bottom electrodes positioned on the substrate; a resistive material layer disposed between the top electrodes and the bottom electrodes and comprising a metal oxide (M1) doped with a metal (M2); a metal layer (M3) for oxygen storage disposed between the top electrodes and the resistive material layer, wherein M1 and M2 meet any one of the following conditions: Gibbs free energy ΔM1 of M1 reacting with oxygen to form an oxide is lower than Gibbs free energy ΔM2 of M2 reacting with oxygen to form an oxide, or a valence state of M2 in its corresponding oxide is lower than a valence state of M1 in its corresponding oxide; and wherein M3 meets the following condition: Gibbs free energy ΔM1 of M1 reacting with oxygen to form an oxide is higher than Gibbs free energy ΔM3 of M3 reacting with oxygen to form an oxide.