Coplanar wire crossing in quantum cellular automata using a ternary cell

To date, ternary quantum-dot cellular automata (QCA) has been especially investigated and also is being advanced. Nonetheless, it should be possible to make interactions between binary QCA and ternary QCA circuits in order to have a versatile platform of designing. On the other hand, one of the most important concerns in QCA is minimising wire crossings because of low robustness caused by their manufacturing process and operational defects. In this study, a novel ternary-to-binary (and vice versa) converter is introduced firstly and a novel coplanar wire crossing scheme is proposed and presented afterwards. The latter scheme uses both kinds of binary and ternary QCA cells and provides a reliable crossover. Detailed circuit designs and results are presented to show correct functionality of the proposed circuits.

[1]  Ramesh Karri,et al.  Quantum-Dot Cellular Automata Design Guideline , 2006, IEICE Trans. Fundam. Electron. Commun. Comput. Sci..

[2]  Mahfuza Khatun,et al.  Fault-tolerance and thermal characteristics of quantum-dot cellular automata devices , 2010 .

[3]  Graham A. Jullien,et al.  Simulation of random cell displacements in QCA , 2007, JETC.

[4]  Turgay Temel,et al.  Implementation of Multi-Valued Logic Gates Using Full Current-Mode CMOS Circuits , 2004 .

[5]  P. Pecar,et al.  Adiabatic pipelining: a key to ternary computing with quantum dots. , 2008, Nanotechnology.

[6]  N. Ranganathan,et al.  Reversible Logic-Based Concurrently Testable Latches for Molecular QCA , 2010, IEEE Transactions on Nanotechnology.

[7]  P. D. Tougaw,et al.  Lines of interacting quantum‐dot cells: A binary wire , 1993 .

[8]  M. Ottavi,et al.  Partially Reversible Pipelined QCA Circuits: Combining Low Power With High Throughput , 2011, IEEE Transactions on Nanotechnology.

[9]  Fabrizio Lombardi,et al.  A Serial Memory by Quantum-Dot Cellular Automata (QCA) , 2008, IEEE Transactions on Computers.

[10]  Wolfgang Porod,et al.  Quantum cellular automata , 1994 .

[11]  N. Ranganathan,et al.  Design of Testable Reversible Sequential Circuits , 2013, IEEE Transactions on Very Large Scale Integration (VLSI) Systems.

[12]  Sanjukta Bhanja,et al.  QCA Circuits for Robust Coplanar Crossing , 2007, J. Electron. Test..

[13]  T. Cole,et al.  Quantum-dot cellular automata , 2001 .

[14]  Yong-bin Kim,et al.  Challenges for Nanoscale MOSFETs and Emerging Nanoelectronics , 2010 .

[15]  Ioannis G. Karafyllidis,et al.  Design and simulation of modular 2 n to 1 quantum-dot cellular automata (QCA) multiplexers , 2010 .

[16]  Masao Mukaidono.  Regular Ternary Logic Functions—Ternary Logic Functions Suitable for Treating Ambiguity , 1986, IEEE Transactions on Computers.

[17]  Keivan Navi,et al.  Design and implementation of Multistage Interconnection Networks using Quantum-dot Cellular Automata , 2011, Microelectron. J..

[18]  Mohsen Soryani,et al.  Cell Number Optimization for Quantum Cellular Automata Based on AND-OR-INVERTER , 2012 .

[19]  Miha Mraz,et al.  The ternary quantum-dot cell and ternary logic , 2006 .