| 摘要 |
PROBLEM TO BE SOLVED: To provide a printed circuit board designing apparatus which performs the design of a printed circuit board at high speed, and a printed circuit board designing method for performing the design of the printed circuit board at high speed. SOLUTION: There is provided a wiring substrate designing apparatus which has a distance calculation means for determining positional information regarding a position of each component constituting a circuit on a wiring substrate and a position of wiring on the wiring substrate between each component on the basis of circuit diagram information to calculate a wiring distance between the components, discriminates whether or not a signal on which transmission noise is superimposed is within a prescribed value about wiring with high a possibility that the transmission noise is generated by the wiring distance calculated by the distance calculation means, and an applied signal applied on the components is simulated. COPYRIGHT: (C)2010,JPO&INPIT
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