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Improved crosstalk modeling for noise constrained interconnect optimization

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3 Author(s)
Gong, J. ; Dept. of Comput. Sci., California Univ., Los Angeles, CA, USA ; Pan, D.Z. ; Srinivas, P.V.

This paper presents a much improved, highly accurate yet efficient crosstalk noise model, the 2-π model, and applies it to noise-constrained interconnect optimizations. Compared with previous crosstalk noise models of similar complexity, our 2-π model takes into consideration many key parameters, such as coupling locations (near-driver or near-receiver), and the coarse distributed RC characteristics for victim net. Thus, it is very accurate (less than 6% error on average compared with HSPICE simulations). Moreover, our model provides simple closed-form expressions for both peak noise amplitude and noise width, so it is very useful for noise-aware layout optimizations. In particular we demonstrate its effectiveness in two applications: (i) optimization rule generation for noise reduction using various interconnect optimization techniques, (ii) simultaneous wire spacing to multiple nets for noise constrained interconnect minimization

Published in:

Design Automation Conference, 2001. Proceedings of the ASP-DAC 2001. Asia and South Pacific

Date of Conference:

2001