| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a printed wiring board which can reduce a radiant noise without being influenced by an interval between a power-supply terminal and a grounding terminal. SOLUTION: In a power-supply layer 4A on a printed wiring board 10A, a power-supply layer clearance VCL is arranged in such a way that a power- supply passage 20 to power-supply connecting pads VPDs connected to power- supply terminals of an array-shaped connection-type IC 50 is led from a single source, i.e., that it becomes a single power-supply passage with reference to the power-supply terminals of the array-shaped connection-type IC 50. As a result, the power-supply passage 20 is formed.</p> |
