11:30 〜 11:45
[B-6-03] Scaling of Device Area for Ultra-low-power Dissipation in 2-terminal Protonic Artificial Synapses
Protonic synaptic devices have shown great promise in mimicking the energy-efficient and parallel processing of biological synapses. However, achieving high impedance and ultra-low power dissipation remains a significant challenge for their practical implementation. In this paper, we demonstrate the two-terminal protonic device that can show high controllability of analog resistance in an extremely high impedance range. This unique property originated from the homogeneous resistance change by proton rather than the filamentary one as observed in conventional resistance switching devices. The experiments on device scaling indicated the power dissipation could be as low as 10 fW in case of device size of 50 nm diameter, highlighting the potential of protonic devices for ultra-low power application.