From: Jack Olson ([email protected])
Date: Tue Nov 09 1999 - 16:45:24 PST
Here is one article that might help:
The Effect of Vias on PCB Traces - by Doug Brooks
http://www.ultracad.com/t009.pdf <http://www.ultracad.com/t009.pdf>
Jack
-----Original Message-----
From: [email protected] [mailto:[email protected]]
Sent: Tuesday, November 09, 1999 3:50 PM
To: [email protected]
Subject: [SI-LIST] : Impedance calculator
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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