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

Abstract

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.

Keywords

• semiconductor quantum dots
• cellular automata
• CMOS integrated circuits
• nanoelectronics
• network analysis
• circuit complexity
• quantum-dot cellular automata circuit design
• robust one layer crossover scheme
• nanotechnology
• complementary metal oxide semiconductor technology
• QCA cells
• clock assignment
• circuit complexity