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arXiv · 0901.4694

Limit on the Addressability of Fault-Tolerant Nanowire Decoders

Yeow Meng Chee·Alan C. H. Ling
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Abstract

Although prone to fabrication error, the nanowire crossbar is a promising candidate component for next generation nanometer-scale circuits. In the nanowire crossbar architecture, nanowires are addressed by controlling voltages on the mesowires. For area efficiency, we are interested in the maximum number of nanowires $N(m,e)$ that can be addressed by $m$ mesowires, in the face of up to $e$ fabrication errors. Asymptotically tight bounds on $N(m,e)$ are established in this paper. In particular, it is shown that $N(m,e) = Θ(2^m / m^{e+1/2})$. Interesting observations are made on the equivalence between this problem and the problem of constructing optimal EC/AUED codes, superimposed distance codes, pooling designs, and diffbounded set systems. Results in this paper also improve upon those in the EC/AUEC codes literature.

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Yeow Meng Chee, Alan C. H. Ling. 2009-01-29. Limit on the Addressability of Fault-Tolerant Nanowire Decoders. https://doi.org/10.1109/tc.2008.130

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