[SI-LIST] : Impedance calculator

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From: Chao-tung Yang (ctyang@adlink.com.tw)
Date: Tue Nov 09 1999 - 15:50:23 PST


Dear All,

Most of the impedance calculation softwares only calculate the
impedance of straight line without through hole or via. But in
a backplane, there are lots of through holes along with the lines.
Obviously, these through holes will reduce the impedance of the line.

Does any one know any tool or method which can calculate the
impedance of a line with vias?

Thanks,
CT Yang
ADLink Technology, Inc.

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