Ultra-Low-Cost Design of Ripple Carry Adder to Design Nanoelectronics in QCA Nanotechnology

Due to the development of integrated circuits and lack responsiveness existing technology, researchers are looking for an alternative technology. Quantum-dot cellular automata (QCA) technology is one promising alternatives due its higher switch speed, lower power dissipation, device density. One most important widely used in digital logic calculations full adder (FA) circuit, which actually creates problem finding optimal design increasing performance. In this paper, we designed implemented two new FA QCA then ripple carry (RCA) circuits. The proposed FAs RCAs showed excellent performance terms evaluation parameters, especially cost function, compared other reported designs. adders’ approach was 46.43% more efficient than best-known design, reason superiority coplanar form, without crossovers inverter gates