Adaptive Admittance-based Conductor Meshing for Interconnect
Analysis
Adaptive Admittance-based Conductor Meshing for Interconnect
Analysis
Y.-C. Yang, C.-K. Koh and V. Balakrishnan
In Proc. ASPDAC, Yokohama, Japan, January 2006
Abstract:
We present a new algorithm for discretizing interconnects,
a step that is typically performed to account for the
non-uniformity of current w at high frequencies. The algorithm
is based on an easily-computable measure that correlates well
with the model accuracy. This measure is used to refine the
discretization of interconnects in an adaptive scheme so as to
systematically trade off computation against model accuracy. We
apply the proposed discretization technique on two classes of
problems in the analysis of VLSI interconnects: simulation and
frequency-dependent inductance extraction. Numerical results
establish that with the interconnect discretizations generated
by our algorithm, 3 to 7 times reduction in simulation and
extraction times can be realized with negligible sacrifice in model
accuracy (i.e., < 1% errors).
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