Reversible Gate Mapping into QCA Explicit Cells Packed with Single Layer

MOS based circuits and computing devices are facing challenge related to energy dissipation, short channel effect and device density. The state of the art technology is driven towards Quantum cellular automata (QCA) computing with an emphasis on a high-speed and smaller area. QCA is a new computing technology that is made of quantum cell restraining two electrons and two dots. In this paper, a novel design of Fredkin, Toffoli, and Feynman gate layout is designed using the molecular QCA concept. Presented cell layout of newly circuit validity is verified by QCADesigner software. Further, a large number of articles are reviewed and comparison results are presented to show the optimal results such as cell count, majority gate count, bounded box area, and clock utilize. In this work, QCA and reversible logic combined together and the proposed designs have less bounded box area and delay, which is an essential part of the next-generation computing.