In order to improve the performance of the existing statistical timing analysis, slew distributions must be taken into account and a mechanism to propagate them together with delay distributions along signal paths is necessary. This paper introduces Gaussian mixture models to represent the slew and delay distributions, and proposes a novel algorithm for statistical timing analysis. The algorithm propagates a pair of delay and slew in a given circuit graph, and changes the delay distributions of circuit elements dynamically by propagated slews. The proposed model and algorithm are evaluated by comparing with Monte Carlo simulation. The experimental results show that the accuracy improvement in µ+3σ value of maximum delay is up to 4.5 points from the current statistical timing analysis using Gaussian distributions.
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Shingo TAKAHASHI, Shuji TSUKIYAMA, "A New Statistical Timing Analysis Using Gaussian Mixture Models for Delay and Slew Propagated Together" in IEICE TRANSACTIONS on Fundamentals,
vol. E92-A, no. 3, pp. 900-911, March 2009, doi: 10.1587/transfun.E92.A.900.
Abstract: In order to improve the performance of the existing statistical timing analysis, slew distributions must be taken into account and a mechanism to propagate them together with delay distributions along signal paths is necessary. This paper introduces Gaussian mixture models to represent the slew and delay distributions, and proposes a novel algorithm for statistical timing analysis. The algorithm propagates a pair of delay and slew in a given circuit graph, and changes the delay distributions of circuit elements dynamically by propagated slews. The proposed model and algorithm are evaluated by comparing with Monte Carlo simulation. The experimental results show that the accuracy improvement in µ+3σ value of maximum delay is up to 4.5 points from the current statistical timing analysis using Gaussian distributions.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E92.A.900/_p
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@ARTICLE{e92-a_3_900,
author={Shingo TAKAHASHI, Shuji TSUKIYAMA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A New Statistical Timing Analysis Using Gaussian Mixture Models for Delay and Slew Propagated Together},
year={2009},
volume={E92-A},
number={3},
pages={900-911},
abstract={In order to improve the performance of the existing statistical timing analysis, slew distributions must be taken into account and a mechanism to propagate them together with delay distributions along signal paths is necessary. This paper introduces Gaussian mixture models to represent the slew and delay distributions, and proposes a novel algorithm for statistical timing analysis. The algorithm propagates a pair of delay and slew in a given circuit graph, and changes the delay distributions of circuit elements dynamically by propagated slews. The proposed model and algorithm are evaluated by comparing with Monte Carlo simulation. The experimental results show that the accuracy improvement in µ+3σ value of maximum delay is up to 4.5 points from the current statistical timing analysis using Gaussian distributions.},
keywords={},
doi={10.1587/transfun.E92.A.900},
ISSN={1745-1337},
month={March},}
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TY - JOUR
TI - A New Statistical Timing Analysis Using Gaussian Mixture Models for Delay and Slew Propagated Together
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 900
EP - 911
AU - Shingo TAKAHASHI
AU - Shuji TSUKIYAMA
PY - 2009
DO - 10.1587/transfun.E92.A.900
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E92-A
IS - 3
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - March 2009
AB - In order to improve the performance of the existing statistical timing analysis, slew distributions must be taken into account and a mechanism to propagate them together with delay distributions along signal paths is necessary. This paper introduces Gaussian mixture models to represent the slew and delay distributions, and proposes a novel algorithm for statistical timing analysis. The algorithm propagates a pair of delay and slew in a given circuit graph, and changes the delay distributions of circuit elements dynamically by propagated slews. The proposed model and algorithm are evaluated by comparing with Monte Carlo simulation. The experimental results show that the accuracy improvement in µ+3σ value of maximum delay is up to 4.5 points from the current statistical timing analysis using Gaussian distributions.
ER -