| 摘要 |
A printed circuit board (PCB) is provided. The PCB includes a signal layer, a first reference plane defined adjacent to a first side of the signal layer, and a via passing through the signal layer and the first reference plane. The first side of the signal layer is either above the signal layer or below the signal layer. The via is configured to accept an electrical signal to be routed on the signal layer. The inner area of the first reference plane up to the via is capable of being eliminated.
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