Quantum-dot cellular automata (QCA) is a novel nanotechnology which is considered as a solution to the scaling problems in complementary metal oxide semiconductor technology. In this Letter, a robust one layer crossover scheme is introduced. It uses only 90° QCA cells and works based on a proper clock assignment. The application of this new scheme is shown in designing a sample QCA circuit. Simulation results demonstrate that using this new scheme, significant improvements in terms of area and complexity can be achieved.

References

1. 1)
  - 5. Walus, K., Dysart, T.J., Jullien, G.A., et al: ‘QCADesigner: a rapid design and simulation tool for quantum-dot cellular automata’, IEEE Trans. Nanotechnol., 2004, 3, pp. 26–31 (doi: 10.1109/TNANO.2003.820815).
2. 2)
  - 2. Devadoss, R., Paul, K., Balakrishnan, M.: ‘Coplanar QCA crossovers’, IET Electron. Lett., 2009, 45, pp. 1234–1235 (doi: 10.1049/el.2009.2819).
3. 3)
  - 3. Tougaw, D., Khatun, M.: ‘A scalable signal distribution network for quantum-dot cellular automata’, IEEE Trans. Nanotechnol., 2013, 12, pp. 215–224 (doi: 10.1109/TNANO.2013.2243162).
4. 4)
  - 22. Tougaw, P.D., Lent, C.S.: ‘Logical devices implemented using quantum cellular automata’, J. Appl. Phys., 1994, 75, (3), pp. 1818–1825 (doi: 10.1063/1.356375).
5. 5)
  - 7. Kim, K., Wu, K., Karri, R.: ‘The robust QCA adder designs using composable QCA building blocks’, IEEE Trans. Comput. Aided Des. Integr. Circuits Syst., 2007, 26, pp. 176–183 (doi: 10.1109/TCAD.2006.883921).
6. 6)
  - 24. Hanninen, I., Takala, J.: ‘Binary adders on quantum-dot cellular automata’, J. Signal Process. Syst., 2010, 58, (1), pp. 87–103 (doi: 10.1007/s11265-008-0284-5).
7. 7)
  - K. Kim , K. Wu , R. Karri . The robust QCA adder designs using composable QCA building blocks. IEEE Trans. Comput. Aided Des. Integr. Circuits Syst. , 1 , 176 - 183
8. 8)
  - 3. Tougaw, D., Khatun, M.: ‘A scalable signal distribution network for quantum-dot cellular automata’, IEEE Trans. Nanotechnol., 2013, 12, pp. 215–224 (doi: 10.1109/TNANO.2013.2243162).
9. 9)
  - 9. QCADesigner Documentation [Online]. Available at http://www.qcadesigner.ca.
10. 10)
  - P.D. Tougaw , C.S. Lent . Logical devices implemented using quantum cellular automata. J. Appl. Phys. , 3 , 1818 - 1825
11. 11)
  - 2. Devadoss, R., Paul, K., Balakrishnan, M.: ‘Coplanar QCA crossovers’, IET Electron. Lett., 2009, 45, pp. 1234–1235 (doi: 10.1049/el.2009.2819).
12. 12)
  - 5. Hänninen, I., Takala, J.: ‘Binary adders on quantum-dot cellular automata’, J. Signal Process. Syst. (Springer), 2010, 58, pp. 87–103 (doi: 10.1007/s11265-008-0284-5).
13. 13)
  - K. Walus , T.J. Dysart , G.A. Jullien , A.R. Budiman . QCADesigner: a rapid design and simulation tool for quantum-dot cellular automata. IEEE Trans. Nanotechnol. , 1 , 26 - 31
14. 14)
  - 4. Shin, S.H., Jeon, J.C., Yoo, K.Y.: ‘Wire-crossing technique on quantum-dot cellular automata’. Second Int. Conf. Next Generation Computer and Information Technology (NGCIT), 2013, vol. 27, pp. 52–57.
15. 15)
  - 8. Kim, K., Wu, K., Karri, R.: ‘Towards designing robust QCA architectures in the presence of sneak noise paths’. Proc. Design, Automation and Test in Europe Conf. Exhibition, 2005, pp. 1214–1219.
16. 16)
  - 6. Jazbec, A., Zimic, N., Bajec, I.L., Pe'ar, P., Mraz, M.: ‘Quantum-dot field programmable gate array: enhanced routing’. Conf. Optoelectronic and Microelectronic Materials and Devices, 2006, pp. 121–124.

Designing quantum-dot cellular automata circuits using a robust one layer crossover scheme

References

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