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A timing model incorporating the effect of crosstalk on delay and its application to optimal channel routing

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1 Author(s)
S. S. Sapatnekar ; Dept. of Electr. & Comput. Eng., Minnesota Univ., Minneapolis, MN, USA

Crosstalk is generally recognized as a major problem in integrated circuit design. This paper presents a novel approach to the efficient measurement of the effect of crosstalk on the delay of a net using an algorithm whose worst case complexity is polynomial-time in the number of nets. The cost of the algorithm is seen to be O(n log n) in practice, where n is the number of nets, and it is amenable to being incorporated into the inner loop of a timing optimizer. To illustrate this, the method is applied to reduce the effects of crosstalk in channel routing, where it is seen to give an average improvement of 23% in the delay in a channel as compared to the worst case, as measured by SPICE

Published in:

IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems  (Volume:19 ,  Issue: 5 )