Patent ID: 7003744
Filing Date: 2006-02-21
Classification: G06F,H05K

Abstract:
1. A method for generating an equivalent circuit model to determine the behavior and frequency performance of a substrate mounted electrical circuit component mounted upon a given substrate, the equivalent circuit model incorporating substrate-dependent parameters, the method comprising the steps of: selecting a substrate mounted electrical circuit component from a group consisting of a single-layer capacitor, a resistor, a chip inductor, an air-coil inductor, a ceramic chip inductor, a ferrite bead, a plastic packaged diode, a plastic packaged transistor, a plastic packaged switch, a beam-lead diode, a coaxial ceramic surface mount resonator, a filter, a coupler and a transformer for which an equivalent circuit model is desired; determining input parameters of the equivalent circuit model, wherein some of which are dependent upon characteristics of the substrate upon which the electrical circuit component is mounted, for the selected electrical circuit component; representing the selected electrical circuit component mounted upon the substrate as an equivalent electrical circuit; formulating mathematical expressions based upon the input parameters; and creating a unique equivalent circuit model for the selected electrical circuit component mounted upon the given substrate, the unique equivalent circuit model representing the mounting of the selected component upon the given substrate wherein the equivalent circuit model provides the behavior and frequency performance predictions of the selected electrical circuit component based upon the given substrate characteristics.