Design Methods in Nanotechnology Using Quantum Dot Cellular Automata (QCA)
Madhavi Repe, Sanjay Mahadev Koli · 2022 2nd International Conference on Intelligent Technologies (CONIT) · 2022
Quantum Dot Cellular Automata is the extension of CMOS technology. In CMOS technology further scaling down is not possible. QCA is the solution for it and overcomes the drawbacks in CMOS. This paper gives the evaluation of sequential circuit designs and techniques used to design flip flop. This will help the researchers to compare, combine and innovate other ways to further improve the parameters like cell count, device density, delay and energy dissipation. This paper gives comparison of methods used to design flip flops and the best among them. D FF designed using traditional Majority gate or rotated three input majority gate gives optimized result in terms of cells, area and clock cycle. It makes use of just 20 cells, 0.02µm2 area and 1 clock cycle. QCADesigner version 2.0.3 software and QCADesinger E is used to verify the simulation results in QCA. Further optimization and digitalization is possible by improving the parameters and by making use of innovative methods.