WIRING CAPACITANCE EXTRACTING SYSTEM, WIRING CAPACITANCE EXTRACTING METHOD AND RECORDING MEDIUM

PROBLEM TO BE SOLVED: To extract a wiring capacitance at a high accuracy in a short time by selectively applying a plurality of wiring capacitance extracting means to a plurality of layouts of circuit wirings to compute the wiring capacitance. SOLUTION: The input of a wiring capacitance extracting system 100 is composed of a wiring capacitance definition library 210, net list 220 with layout wiring information and extracting method designating file 230. In the wiring capacitance definition library 210, the wiring capacitance values per unit length of wiring, etc., are defined, and the extracting method designating file 230 is to designate a wiring capacitance extracting means applied to every wiring and has a plurality of wiring capacitance extracting means. For a wiring needing to obtain a high accuracy wiring capacitance, the wiring capacitance is obtained by a high accuracy extracting means, but for other wirings, the wiring capacitance is obtained by other extracting means, without considering the influence of adjacent wirings, whereby the wiring capacitance can be extracted at a high accuracy in a short time.