Power and delay comparison of 1 Bit full adder designs at 180nm and 90nm technology

This paper puts forward a comparison between two 1 bit full adder designs: one using 4T XOR and the other using 4:1 MUX based 3 Input XOR. Both are designs are made up of 10 transistors. The simulation is done using Cadence Simulator at 180nm and 90nm Technology. Comparison is made among the two proposed designs with respect to power and delay. The results show the efficiency of the design.