Modeling DC Power-Bus Structures with Vertical Discontinuities using a Circuit Extraction Approach Based on a Mixed-Potential Integral Equation

Jun Fan, Missouri University of Science and Technology
Hao Shi
Antonio Orlandi
James L. Drewniak, Missouri University of Science and Technology
James L. Knighten

This document has been relocated to http://scholarsmine.mst.edu/ele_comeng_facwork/1733

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Abstract

The DC power-bus is a critical aspect in high-speed digital circuit designs. A circuit extraction approach based on a mixed-potential integral equation is presented herein to model arbitrary multilayer power-bus structures with vertical discontinuities that include decoupling capacitor interconnects. Green's functions in a stratified medium are used and the problem is formulated using a mixed-potential integral equation approach. The final matrix equation is not solved, rather, an equivalent circuit model is extracted from the first-principles formulation. Agreement between modeling and measurements is good, and the utility of the approach is demonstrated for DC power-bus design.