Dynamic Data-bit Memory Built-In Self- Repair

  • Authors:
  • M. Nicolaidis;N. Achouri;S. Boutobza

  • Affiliations:
  • iRoC Technologies, France;iRoC Technologies, France;iRoC Technologies, France

  • Venue:
  • Proceedings of the 2003 IEEE/ACM international conference on Computer-aided design
  • Year:
  • 2003

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Abstract

In modern SoCs, embedded memories occupythe largest part of the chip area and include an evenlarger amount of active devices. As memories aredesigned very tightly to the limits of the technology theyare more prone to failures than logic. Thus, theyconcentrate the large majority of defects and affect circuityield dramatically. Thus, Built-In Self-Repair is gainingsignificant importance. This work presents a dynamicmemory built-in self-repair schemer acting on the data-bitlevel. It allows reducing the size of the repairable units,or in other words, it allows using a single spare unit forrepairing faults affecting several regular units. As aconsequence, it repairs multiple faults by means of lowhardware cost.