Patent ID: 8445888

Claim:
A resistive random access memory using rare earth scandate thin film as the storage medium, comprising: a substrate; an insulation layer, being formed on the substrate; a first electrode layer, being stably formed on the insulation layer through an adhesion-enhancing layer; a resistive memory layer, being formed on the first electrode layer, wherein the resistive memory layer is an amorphous rare earth scandate layer formed by way of chemical combination of a single rare-earth atom and a plurality of oxygen atoms, and the amorphous rare earth scandate layer having the oxygen atoms of 51 atom percent wherein the thickness of the resistive memory layer is ranged from 36 nm to 120 nm; and a second electrode layer, being formed on the resistive memory layer; wherein the amorphous rare earth scandate layer shows the characteristics of bipolar resistance switching behavior when an external voltage is applied to the first electrode layer.