Patent ID: 8378345
Filing Date: 2013-02-19
Classification: G11C,H01L

Abstract:
1. A device comprising: a substrate having an upper surface and an opposing lower surface; a first metal layer coupled to the upper surface; a Praseodymium Calcium Manganese Oxide (PCMO) layer coupled to the first metal layer; a metal oxide layer coupled to the PCMO layer; and a second metal layer coupled to the metal oxide layer, wherein a first Gibbs free energy for the metal oxide layer is lower than a second Gibbs free energy for the PCMO layer, wherein the PCMO layer is characterized by a first state having a first resistance and a second state having a second resistance and the metal oxide layer is characterized by a third state having a third resistance state and a fourth state having a fourth resistance, and wherein the first resistance is higher than the second resistance and the third resistance is higher than the fourth resistance.