Patent ID: 9208869
Filing Date: 2015-12-08
Classification: G11C,H01L

Abstract:
1. A method for driving a resistive random access memory (ReRAM) which includes a first electrode, a threshold switching layer of stoichiometric transition oxide formed over the first electrode, a resistance change layer of a non-stoichiometric transition metal oxide formed over the threshold switching layer, and a second electrode formed over the resistance change layer, the method comprising; applying a first voltage to turn on the threshold switching layer and to change the resistance change layer from a high resistance state to a low resistance state; turning off the threshold switching layer by reducing the first voltage; applying a second voltage having an opposite polarity of the first voltage to turn on the threshold switching layer and to change the resistance change layer from a low resistance state to a high resistance state; and turning off the threshold switching layer by reducing the second voltage.