Automatic Generation of Accurate Circuit Models of 3-D Interconnect
نویسندگان
چکیده
In order to optimize high-speed systems, designers need tools that automatically generate reduced-order SPICE compatible models from geometric descriptions of interconnect and packaging. In this paper, we consider structures small compared to a wavelength, and use a discretized integral formulation combined with an Arnoldi-based model-order reduction strategy to compute efficiently accurate reduced-order models from three-dimensional (3-D) structures. Several issues are addressed including: 1) formulation to insure passivity in the reduced-order models; 2) efficient reduction using preconditioned inner-loop iterative methods; 3) expansion about multiple s-domain points. Results are presented on several industrial examples to demonstrate the capabilities and speed of these new methods.
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