A parallel iterative layered-medium integral-equation solver for electromagnetic analysis of electronic packages

A parallel iterative solver for multiport network parameter extraction of large-scale electronic packages is presented. The proposed solver is based on a frequency-domain integral-equation formulation that accounts for the substrate using planar layered-medium Green's functions, conductor loss/ roughness using an impedance boundary condition, and port truncations using a non-radiating lumped port model. The parallel iterative solution is accelerated by a sparse preconditioner and an FFT-based matrix-vector multiplication algorithm. A scalability study demonstrates the solver's suitability for analyzing high-fidelity and large-scale package models.