Re: IBIS BIRD64 - Package Model Selector

Michael and Arpad,

It certainly makes sense to perform multiple combinations
of simulations with Min/Max packages and device models.

Simulation corners are very interesting things. Often the
least thought of combination gives the greatest problems.

Max I/V curves and Min package model would be useful
for hold time simulations, as also would Min I/V curves and
Min package.

regards,

scott

micohen@us.ibm.com wrote:

> Arpad,
>
> The "[Package Model Selector]" keyword idea is great. I agree 100% that
> this is needed in the next generation IBIS (IBIS 4.0).
>
> However, I do think that for the corner situations (TYP, MIN, MAX), we need
> to have a different keyword or structure. Or do we? I am looking for some
> discussion from the IBIS community on this matter. Does it make sense to
> use a "typical" package model for all three simulations (MIN, TYP, MAX)?
> Does it make sense to use a MIN package model in a MAX simulation?
>
> Regards,
> Michael Cohen
>
> IBM Personal Systems Group
> Design Tools Department
> D-26D/B-201/R-D104H
> 3039 Cornwallis Road
> Research Triangle Park, NC 27709
>
> Phone: 919-543-4042 (T/L 441-4042)
> FAX: 919-543-8221 (T/L 441-8221)
> Internet Address: micohen@us.ibm.com

--
Scott McMorrow
Principal Engineer
SiQual, Signal Quality Engineering
18735 SW Boones Ferry Road
Tualatin, OR  97062-3090
(503) 885-1231
http://www.siqual.com