Using stacked covalent-bond-dielectric GeOx on metaloxynitride HfON, the NiGeOx/HfON/TaN resistive random access memory (RRAM) showed ultralow set power of 0.3 μW (0.1 μA at 3 V), reset power of 0.6 nW (-0.3 nA at 1.8 V), fast 20-ns switching time, ultralow 8-fJ switching energy (4-V overstress), and excellent 10-6 cycling endurance. Such excellent performance was reached by using hopping conduction with negative temperature coefficient (TC) rather than the positive TC in metaloxide RRAM.
- hopping conduction
- resistive random access memory (RRAM)
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering