This book explores the scientific and engineering principles of designing and testing digital circuits based on Quantum-Dot Cellular Automata (QCA), a technology investigated as an alternative approach to implementing nanoscale logic circuits beyond conventional CMOS technology. The topics covered include the operating principles of QCA cells, majority gates, interconnections and wiring, combinational and sequential circuit design, clocking schemes, and fault mechanisms. The book also examines testability methods and circuit reliability assessment techniques aimed at identifying physical and structural faults and improving the performance of QCA-based systems.
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