Application-independent defect-tolerant crossbar nano-architectures

  • Authors:
  • Mehdi B. Tahoori

  • Affiliations:
  • Northeastern University, Boston, MA

  • Venue:
  • Proceedings of the 2006 IEEE/ACM international conference on Computer-aided design
  • Year:
  • 2006

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Abstract

Defect tolerance is a major issue in nano computing. In this paper, an application-independent defect tolerant scheme for reconfigurable crossbar nano-architectures is presented. Architectural features are developed to reliably connect local defect-free subsets of crossbars in order to generate a defect-free architecture. It is also shown how to further reduce the area overhead associated with this flow by relaxing some constraints on the defect-free subsets. Experimental results show more than 9x reduction in the area overhead without any negative impact on the usability of modified defect-free subsets.