Crosstalk noise estimation for generic RC trees

摘要

We propose an estimation method of crosstalk noise for generic RC trees. The proposed method derives an analytic waveform of crosstalk noise in a 2-π equivalent circuit. The peak voltage is calculated from the closed-form expression, and the crosstalk induced delay is estimated using the derived noise waveform. We also develop a transformation method from generic RC trees with branches into the 2-π model circuit. The proposed method can hence estimate crosstalk noise for any RC trees. Our estimation method is evaluated in a 0.13μm technology. The peak noise of two partially-coupled interconnects is estimated with the average error of 13%. Our method transforms generic RC interconnects with branches into the 2-π model with 14% error on average.