Design and implementation of high-performance 20-T hybrid full adder circuit

A new high-performance exclusive OR/exclusive NOR (XOR/XNOR) architecture with ten transistors is proposed in this work. Our research focused on implementing a hybrid exclusive OR/exclusive NOR circuit to achieve high performance, good driving capability, and low energy operation for deep sub-micrometer applications. Afterwards, a full adder (FA) circuit is implemented using the proposed exclusive OR/exclusive NOR design. All circuits are examined and simulated using Generic Process Design Kit 90 nm CMOS technology and a cadence spectra simulator. In terms of power delay product (PDP), the simulation results indicate that the proposed exclusive OR/exclusive NOR and FA design is more efficient than the existing circuits. In addition, the proposed exclusive OR/exclusive NOR and FA are implemented at the device level with Visual TCAD (Technology Computer-Aided Design) software, and the performance is tested using the Genius simulator.