Modeling the Non-Linear Behavior of Library Cells for Static Noise Analysis

drjiachen · 发表于 2011-5-21 02:40:18

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ABSTRACT
In signal integrity analysis, the joint effect of propagated noise
through library cells, and of the noise injected on a quiet net by
neighboring switching nets through coupling capacitances, must
be considered in order to accurately estimate the overall noise
impact on design functionality and performances. In this work the
impact of the cell non-linearity on the noise glitch waveform is
analyzed in detail, and a new macromodel that allows to
accurately and efficiently modeling the non-linear effects of the
victim driver in noise analysis is presented.
Experimental results demonstrate the effectiveness of our method,
and confirm that existing noise analysis approaches based on
linear superposition of the propagated and crosstalk-injected noise
can be highly inaccurate, thus impairing the sign-off functional
verification phase.

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