Patent ID: 8863070

Claim:
A thermal-analysis-model generating apparatus comprising: an area calculating unit that calculates an area of a predetermined range including an electronic component mounted on a printed-circuit board, the area including both the electronic component and the printed-circuit board; a counting unit that counts a number of via holes included in the predetermined range of which the area is calculated by the area calculating unit; a first calculating unit that calculates a first physical property value using the area calculated by the area calculating unit, the number of via holes counted by the counting unit, and a preset physical property value of a conductor; a conductor calculating unit that calculates an area of the conductor in the printed-circuit board; a second calculating unit that calculates a second physical property value using a ratio of an area obtained by excluding the area calculated by the area calculating unit from the area of the conductor calculated by the conductor calculating unit in the printed-circuit board and the preset physical property value of the conductor; and a model generating unit that generates a thermal analysis model subject to thermal analysis in which a preset physical property value is set in the electronic component, a heat release path having the first physical property value calculated by the first calculating unit is provided in the printed-circuit board so as to extend from the electronic component in a layer direction of the printed-circuit board, the second physical property value calculated by the second calculating unit is further set in the conductor other than the electronic component in the Printed-circuit board and a preset physical property value is further set in an insulator in the printed-circuit board.