Loop Inductance Based RLCK Models of PCBs and IC-Packages in Practice

Loop inductances offer decisive advantages over partial inductances when electromagnetic systems shall be modeled in a compact and understandable manner. This publication builds on a previously published mathematical technique to extract physical "white-box" models from S-parameters of systems comprising, e.g., power IC metallization, interposers, IC-packages, PCBs and an environment. We shown how a complex system can be segmented by means of differential source and sink ports, forming a multigraph. The ports should be arranged in order to minimize the number of large magnetic couplings by reducing loop area and overlap. We discuss practical examples, such as striplines, half bridges, discrete coils and segmented ground planes. The technique supports development of CMOS SoCs, integrated Automotive ICs, fast-switching DC/DC-converters and high-power modules (SiC MOSFETs, GaN HEMTs).