Patent ID: 8502617
Filing Date: 2013-08-06
Classification: H01P,H05K

Abstract:
1. A printed circuit board (PCB) comprising: a base, which is made of a grid of glass fiber bundles filled with epoxy resin; a signal layer lying on the base, and a plurality of pairs of differential signal traces positioned on the signal layer, wherein each pair of differential signal traces comprises a first signal trace and a second signal trace, each of the first and second signal traces extends in a zigzag pattern, the first signal trace comprises a plurality of wave crests and wave troughs, the wave crests define a reference straight line that connects all the wave crest of the first signal trace, and the ratio of the distance from each wave crest to the reference straight line to the orthogonal distance between each wave crest and an adjacent wave trough along the reference straight line is 1:5, the second signal trace is identical to the first signal trace.