[SI-LIST] Re: ibis limitations
- From: Yu Liu <yu_liu@xxxxxxxxxxxxx>
- To: chris.cheng@xxxxxxxxxxxx
- Date: Fri, 26 Jul 2002 16:40:51 -0700
Chris,
Apache's NSpice can take drivers modeled by BSIM3/4 transistor model,
combined with S-parameter from measurement or 3-D field solver. Take a
look at
www.apache-da.com/Products/nspice.htm
Yu
==
Chris Cheng wrote:
>
>Well said Scott. And no one would probably image this come from Chris' mouth
>but even HSPICE seems to have significant problem modeling advanced
>packaging and long lossy interconnect with dielectric loss. A more advanced
>simulator like Agilent ADS seems to do the job better.
>Chris
>
> -----Original Message-----
>From: Scott McMorrow [mailto:scott@xxxxxxxxxxxxx]
>Sent: Friday, July 26, 2002 4:05 PM
>To: kalgudo@xxxxxxxxx
>Cc: si-list@xxxxxxxxxxxxx
>Subject: [SI-LIST] Re: ibis limitations
>
>
>Kal,
>
>An IBIS model will model a the driver characteristics of a 3 gig
>differential pair driver, if that driver is modeled well by the model
>supplier, if that driver does not have preemphesis, and if that model
>does not have a package.
>
>IBIS cannot currently handle drivers with preemphesis and is very poor
>at modeling packages. You will have significant divergence from reality
>if you use an IBIS package model in a 3 gig differential simulation.
>
>The solutions is generally to use Spice to model your 3 Gig devices.
>
>Regards,
>
>Scott
>
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