Patent ID: 8204722
Filing Date: 2012-06-19
Classification: G06F

Abstract:
1. A simulation apparatus which simulates a shift in signal characteristics occurring in a wiring pattern formed in a printed wiring board, the simulation apparatus comprising: a first database that stores wiring pattern attribute information indicative of attributes of wiring patterns and wiring pattern positional information indicative of positions of the wiring patterns while associating the wiring pattern attribute information with the wiring pattern positional information; a second database that stores solid lack portion size information indicative of sizes of solid lack portions and solid lack portion positional information indicative of positions of the solid lack portions while associating the solid lack portion size information with the solid lack portion positional information; a third database that stores shift amount information indicative of a shift amount of the signal characteristics relative to positional relationships between the wiring patterns and the solid lack portions; an input unit configured to input the wiring pattern attribute information; and a shift amount processing unit configured to obtain the shift amount of the signal characteristics in the wiring patterns corresponding to the wiring pattern attribute information input with the input unit based on the wiring pattern positional information corresponding to the wiring pattern attribute information input with the input unit, the solid lack portion positional information, the solid lack portion size information, and the shift amount information.