| 摘要 |
PROBLEM TO BE SOLVED: To consider improvement easily and generally at the point of designing substrate mounting.SOLUTION: At the point of designing a printed circuit board, by acquiring and calculating information on positional relationship between casing surfaces and the printed circuit board which are adjacent to each other above and below, and shapes, height and arrangement positions of components to be mounted, a space which is not occupied by components above and below the printed circuit board is calculated, distribution of easiness of air flow and a flow channel of air are obtained based on the calculation, and their information is provided in graph display. Further, weighted integration is performed to one or more flow channel such that an existing flow channel can be taken in consideration in changing an arrangement or adding an arrangement, and information on the integration is provided in graph display.SELECTED DRAWING: Figure 1 |
