Patent ID: 8104003

Claim:
A non-transitory recording medium recording a circuit board model creation program for making a computer execute processes for creating, from CAD data of a circuit board, a circuit board model to be used for a circuit simulation, the processes comprising the steps of: creating, referring to part information in the CAD data, a list of lines and a list of vias, the lines and vias being leading from a power supply pin or a ground pin of an LSI part and a bypass capacitor; and referring to the created lists of lines and vias, when a line leading from a pin of a target bypass capacitor is not shared as a line leading from a pin of another bypass capacitor but is shared as a line leading from a pin of an LSI part, creating an element of a line part in the circuit board model corresponding to the line leading from a power supply pin or a ground pin of the target bypass capacitor, with a coefficient parameter embedded in a property value of the element by multiplying or dividing the property value by the coefficient parameter.