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Technical Article

Why are vias bad for high-frequency PCBs (Printed Circuit Boards)?

Time:2018-11-09 09:34:40 Click:

Via is made of drill hole +pad area around the drill hole.


During the high speed and high frequency PCBs, a lot vias are obviously bad.


1)Via will take up a lot spaces, which is bad for PCB Layout.

2)Via as the breakpoint of the impedance discontinuity in transmission line, which will cause a reflection of a signal.



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