Xiaojun Ma
ABSTRACT
DNA self-assembly has been proposed as a promising "bottomup" manufacturing technique to supersede photolithography at nanometer scale. This paper discusses the application of DNA self-assembly for manufacturing templates of QCA circuits. Using a synthesis algorithm, a tile set of reduced cardinality is utilized for growing multiple patterns of the same QCA circuit on a two-dimensional template. Errors in the DNA self-assembly process are then considered; their implications on the operation of faulty QCA circuits following the deposition of QCA cells, are discussed. The errors are mostly clustered and along facets; a detailed treatment with respect to manufacturing yield, circuit functionality, error tolerance and growth speed is pursued. As a general conclusion, it is shown that errors are pattern dependent, hence the faults occurring in the assembled QCA circuits are physically and logically different.
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Index Terms
- Manufacturing yield of QCA circuits by synthesized DNA self-assembled templates
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