Patent ID: 9508425
Filing Date: 2016-11-29
CPC Classification: G11C,H01L

Claim Text:
1. A switching device, comprising: a first electrode, the first electrode including a first metal material; a resistive switching element overlying the first electrode, the resistive switching element comprising a metal oxide material characterized by a plurality of oxygen deficient sites; and a second electrode overlying the resistive switching element, the second electrode including a second metal material, wherein the first metal material and the second metal material do not appreciably react with the resistive switching element; wherein the plurality of oxygen deficient sites are caused to migrate within the resistive switching element towards the first electrode or the second electrode upon a positive voltage applied to the second electrode or the first electrode, respectively, wherein migration of the plurality of oxygen deficient sites is characterized by a continuous change of conductance of the resistive switching element with a continuous change in magnitude of the positive voltage applied, and wherein the continuous change of conductance of the resistive switching element provides for an analog memory device.