Soft Delay Error Effects in CMOS Combinational Circuits

  • Authors:
  • Balkaran S. Gill;Chris Papachristou;Francis G. Wolff

  • Affiliations:
  • -;-;-

  • Venue:
  • VTS '04 Proceedings of the 22nd IEEE VLSI Test Symposium
  • Year:
  • 2004

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Abstract

Single event upsets (SEUs) are due to highenergetic particle strike at sensitive nodes of CMOScombinational circuits. In this paper, we introduce atype of soft errors which manifests as soft delay. Thesoft delay is temporary delay in CMOS combinationalcircuits due to high energetic particle strike. We describesoft delay model which enables us to examinedelay in CMOS combinational circuits due to particlestrike. As technology scales down, the delay due toparticle strike increases, and other factors such as V{dd}scaling, fanout and transistor strength also contributeto increase the soft delay in CMOS combinational circuits.