Transparent memory testing for pattern sensitive faults

  • Authors:
  • M. G. Karpovsky;V. N. Yarmolik

  • Affiliations:
  • Dep. Elec., Comp. & Syst. Eng., College of Eng., Boston University, Boston, MA;Computer Science Dep., Minsk Radio Eng. Inst., Minsk, Belarus

  • Venue:
  • ITC'94 Proceedings of the 1994 international conference on Test
  • Year:
  • 1994

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Abstract

This paper presents a new methodology for RAM testing based on PS(n,k) fault model (the k out of n pattern sensitive fault model). According to this model the contents of any memory cell which belongs to an n-bit memory block, or ability to change the contents, is influenced by the contents of any k - 1 cells from this block. This paper includes the investigation of memory testing approaches based on the transparent pseudoexhaustive testing and its approzimations by pseudorandom circular tests, which can be used for periodic and manufacturing testing and require lower hardware and time overheads than the standard approaches.