Resonant tunneling transistors for threshold logic circuit applications

Resonant tunneling transistors (RTTs) and linear threshold gates based on monostable-bistable logic transition elements (MOBILEs) are promising candidates for nano-scale integrated circuits. In this paper the design methodology of RTT logic gates is discussed and experimental results of a monolithically integrated NAND-NOR gate are presented. To exploit the computational functionality of threshold logic circuits a depth-2 full adder and a bit-level pipelined ripple carry adder are proposed.