Patent ID: 8971088
Filing Date: 2015-03-03
Classification: G11C

Abstract:
1. A method for programming a non-volatile memory device, comprising: providing an as-fabricated state-change device, the as-fabricated state-change device comprising a first electrode, a second electrode, and a state-change material configured between the first electrode and the second electrode, the first electrode comprising an aluminum doped zinc oxide material, the second electrode comprising a silicon material having a p impurity characteristic, and the state-change material comprising a zinc oxide material; applying a first bias voltage to the first electrode of the as-fabricated state-change device to cause the state-change material to change from an as-fabricated state to a first state, the first bias voltage being characterized by a first amplitude; applying a second bias voltage having an opposite polarity to the first bias voltage and having a second amplitude substantially similar as the first amplitude to cause the state-change material to change from the first state to a second state, the second state being substantially similar as the as-fabricated state; and applying a third bias voltage having a same polarity as the first bias voltage and having a third amplitude different from the first amplitude to cause the state-change material to change from the second state to a third state.