[SI-LIST] Re: About via model!

Here is a link to free software (called Fastcap and Fasthenry) to
calculate inductance and capacitance of arbitrary 3D structure:
http://rleweb.mit.edu/vlsi/codes/

There are several commercial simulators based on this or similar
methods, including one from Ansoft.

Mike Khusid
Ansoft Corp.


-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Jack W.C. Lin
Sent: Friday, October 25, 2002 3:36 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] About via model!


Hi All SI Friends:
I would like to build up a simple via model, my XFX3D (innoveda) only
can
calculate CAP_only. Is there any free software to calculate a signal
via? (
I know there is a simplified formula in Dr. Johnson's High Speed Digital
Design, but I think there is an unclear constraints or conditions for
real
via situation). Any recommanded is highly appreciated! Thanks!
Jack


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