METHOD FOR EXTRACTING PARASITIC CAPACITANCE ELEMENT MODEL AND PROGRAM FOR EXTRACTING PARASITIC CAPACITYANCE ELEMENT MODEL

摘要

PROBLEM TO BE SOLVED: To provide a method for extracting a parasitic capacitance element model with respect to a dimension-variable conductor structure by which the data amount of a database for calculating the capacitance is reduced.;SOLUTION: The method for extracting the parasitic capacitance element model in the wiring conductors of an electronic circuit having a layered structure comprises: extracting a two-dimensional capacitance model region from the three-dimensional structure of the facing or adjacent wiring conductors; and extracting a three-dimensional model region from a portion removing the two-dimensional capacitance model region from the three-dimensional structure. In addition, a capacitance approximate expression represented by an attentive variable parameter out of a plurality of parameters specifying the three-dimensional structure is derived for each of the two-dimensional capacitance model region and the three-dimensional capacitance model region. Addition to all the regions is applied to the capacitance approximate expression corresponding to each of the regions to derive the parasitic capacitance element model with respect to the capacitance between the entire three-dimensional structure wiring conductors.;COPYRIGHT: (C)2004,JPO