Two-layer synchronized ternary quantum-dot cellular automata wire crossings
Faculty of Computer and Information Science, University of Ljubljana, Tržaška cesta, Slovenia
Nanoscale Research Letters 2012, 7:221 doi:10.1186/1556-276X-7-221Published: 16 April 2012
Quantum-dot cellular automata are an interesting nanoscale computing paradigm. The introduction of the ternary quantum-dot cell enabled ternary computing, and with the recent development of a ternary functionally complete set of elementary logic primitives and the ternary memorizing cell design of complex processing structures is becoming feasible. The specific nature of the ternary quantum-dot cell makes wire crossings one of the most problematic areas of ternary quantum-dot cellular automata circuit design. We hereby present a two-layer wire crossing that uses a specific clocking scheme, which ensures the crossed wires have the same effective delay.