Patent ID: 8268667

Claim:
A re-writeable non-volatile two-terminal memory device, comprising: a re-writeable non-volatile two-terminal memory element including electrically in series with a first electrode and a second electrode, a layer of electronically insulating material having a first thickness that is approximately 50 Angstroms or less, the layer of electronically insulating material is in contact with the second electrode, a plurality of continuous layers of conductive metal oxide (CMO) that are in contact with one another, only one of the plurality of continuous layers of CMO is in contact with the first electrode, at least one layer of the plurality of continuous layers of CMO includes mobile oxygen ions and at least a portion of the mobile oxygen ions are transported between the at least one layer and the layer of electronically insulating material when a write voltage is applied across the first and second electrodes, one or more of the plurality of continuous layers of CMO configured to store at least one-bit of non-volatile data as a plurality of conductivity profiles that are retained in the absence of electrical power, are reversibly written by applying the write voltage, and are read by applying a read voltage across the first and second electrodes, a first portion of the plurality of continuous layers of CMO positioned between the first and second electrodes comprises electrically conductive CMO layers, and a second portion of the plurality of continuous layers of CMO not positioned between the first and second electrodes comprises ion implanted and electrically non-conductive insulating metal oxide (IMO) regions.