Abstract
We propose a novel negative differential resistance (NDR) device with ultra-high peak-tovalley current ratio (PVCR) by combining pn junction diode with depletion mode nanowire (NW) transistor, which suppress the valley current with transistor off-leakage level. Band-to-band tunneling (BTBT) Esaki diode with degenerately doped pn junction can provide multiple switching behavior having multi-peak and valley currents. These multiple NDR characteristics can be controlled by doping concentration of tunnel diode and threshold voltage of NW transistor. By designing our NDR device, PVCR can be over 10<SUP>4</SUP> at low operation voltage of 0.5 V in a single peak and valley current.
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