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IEICE TRANSACTIONS on Fundamentals

Error Propagation Analysis for Single Event Upset considering Masking Effects on Re-Convergent Path

Go MATSUKAWA, Yuta KIMI, Shuhei YOSHIDA, Shintaro IZUMI, Hiroshi KAWAGUCHI, Masahiko YOSHIMOTO

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Summary :

As technology nodes continue to shrink, the impact of radiation-induced soft error on processor reliability increases. Estimation of processor reliability and identification of vulnerable flip-flops requires accurate soft error rate (SER) analysis techniques. This paper presents a proposal for a soft error propagation analysis technique. We specifically examine single event upset (SEU) occurring at a flip-flop in sequential circuits. When SEUs propagate in sequential circuits, the faults can be masked temporally and logically. Conventional soft error propagation analysis techniques do not consider error convergent timing on re-convergent paths. The proposed technique can analyze soft error propagation while considering error-convergent timing on a re-convergent path by combinational analysis of temporal and logical effects. The proposed technique also considers the case in which the temporal masking is disabled with an enable signal of the erroneous flip-flop negated. Experimental results show that the proposed technique improves inaccuracy by 70.5%, on average, compared with conventional techniques using ITC 99 and ISCAS 89 benchmark circuits when the enable probability is 1/3, while the runtime overhead is only 1.7% on average.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E99-A No.6 pp.1198-1205
Publication Date
2016/06/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E99.A.1198
Type of Manuscript
PAPER
Category
VLSI Design Technology and CAD

Authors

Go MATSUKAWA
  Kobe University
Yuta KIMI
  Kobe University
Shuhei YOSHIDA
  Kobe University
Shintaro IZUMI
  Kobe University
Hiroshi KAWAGUCHI
  Kobe University
Masahiko YOSHIMOTO
  Kobe University

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