Fast and Accurate Fiber Weave Modeling and Simulation

As the data rate of SerDes channel increases from 25Gbps to 56Gbps and 112Gbps, the requirement for timing skew of differential signals is becoming tighter and tighter. The skew of differential pairs can be introduced by the unbalanced differential trace routing on glass weaves. In high-speed PCB designs, there are many possible combinations considering different glass weave patterns and different trace routings, which makes quantifying the impact of glass weave on skew a challenging task. It requires electromagnetic simulation tool vendor to come up with the design guideline for PCB engineers.

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