[SI-LIST] Via Impedance!

  • From: "G.Srinivasan" <srini@xxxxxxxxxxxx>
  • To: Gopalakrishnan Sethuraj <gopalak@xxxxxxxxxxx>
  • Date: Wed, 14 Jul 2004 12:17:52 -0000

Hi,
  I have a querry regarding how to ensure that the impedance of the via is 
the same as that of the traces. For example, if I have a trace of 50 ohms 
running between two layers through a via, how can I calculate its impedance? 
In Specctraquest, I saw that there is a field solver that generates a model 
for the via based on its geometry and uses it for simulation. Does it also 
gives the impedance of the via and provides help to achieve the required via 
impedance? 

Regards,
G.Srinivasan.



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