| 摘要 |
PROBLEM TO BE SOLVED: To provide a board design device automatically arranging bypass capacitors capable of reducing electromagnetic noise. SOLUTION: A CPU 21 of this board design device 1 is materialized with: a component extraction part 33 for extracting data related to an electronic component arranged on a printed board from board data; a pairing part 34 for pairing a ground pin and a power supply pin of the electronic component by use of the extracted data related to the electronic component; a position calculation part 35 for calculating a position for making a rat's nest extending to the ground pin and the power supply pin shortest between the paired ground pin and power supply pin; and a position determination part 36 for changing a position of the bypass capacitor according to a situation around the position, and determining a position wherein a current route between the ground pin and the power supply pin, and the bypass capacitor becomes shortest to a position to be arranged with the bypass capacitor. COPYRIGHT: (C)2009,JPO&INPIT
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