A compact high-speed RTD-based reconfigurable logic gate

An RTD (resonant tunneling diode)-based XOR/NOR reconfigurable logic gate has been designed and fabricated for the first time by using an RTD/HBT integration technology on an InP substrate. The operation of the fabricated XOR/NOR gate was successfully confirmed up to 1.5 GHz of clock frequency. The device count used in the RTD-based XOR/NOR reconfigurable logic gate is less than half of that in the conventional CMOS-based topology.