[SI-LIST] Re: ibis limitations

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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