Current overshoot during set and reset operations of resistive switching memories

Abstract

Low switching current is required for low-power operation of resistive switching memories. Current overshoot during set switching is caused by parasitic capacitance, which may be minimized by effective switching control and reduction of parasitic effects. A different form of current overshoot is also observed during reset switching, where devices go through a transient resistance-reduction process before the reset switching occurs. Reset current overshoot increases actual reset power. Current overshoot has significant impact on the reliability and switching power of resistive switching memories.