Getting on Board with Vias - Article - ANSYS Advantage - V11 I3

It is not uncommon to have a design fail in the field due to signal integrity issues even though simulation shows it should work perfectly because the as-manufactured product differs from the design definition. To avoid this problem, the signal integrity engineer needs to understand what will actually be delivered and use simulation to verify that the frequency- and time-domain performance will meet the design requirements. Simulation can be used to address the question of how differences between as-designed and as-built vias might degrade time- and frequency-domain performance of printed circuit boards (PCBs).


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