Here is the first book devoted to quantum-dot cellular automata (QCA) - an emerging nanoelectronic circuit design technology that more and more industry experts are viewing as a superior alternative to current technologies. QCA promises to help practitioners achieve room temperature operation and realize improvements in speed, density and power over existing (CMOS) systems. This groundbreaking resource provides a comprehensive view of QCA, showing practitioners how to work with this cutting-edge technology. The book offers an in-depth understanding of the design, test, defect tolerance, and computer aided design support for QCA. It identifies and discusses the key challenges facing QCA and offers possible solutions to these issues. Additionally, professionals find a comprehensive nanotechnology survey, detailing the advantages and disadvantages of various technologies.