| 摘要 |
PROBLEM TO BE SOLVED: To make an electronic circuit which can perform the insurance of a return current path efficiently. SOLUTION: In the electronic circuit, a first signal layer 2 and a second signal layer 3 are connected by a first via 1, and equipped with power supply layers 4 and 5, and a ground layer 6. A second via 13 which is electrically connected with the one side of the above power supply layers 4 and 5, and the ground layer 6; and which is not connected electrically to another side and the above ground layer 6; is provided in the vicinity of the first via 1. COPYRIGHT: (C)2006,JPO&NCIPI
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