Re: [IBIS] Comments on BIRD97

-------- Original Message --------
Subject: Re: [IBIS] Comments on BIRD97.
Date: Tue, 15 Mar 2005 20:14:37 -0800
From: Bob Ross <bob@teraspeed.com>
To: ibis@eda.org

Hello Itzik and All:

Several people are interested in BIRD97 as part of the
BIRD95 solution.  I am interested in seeing more details about
the improvements your are suggestiong.  But I am also
leaning towards the most simple proposal possible for
various extraction and implementation reasons.

I believe the author is out of town, so we may get only
limited response.

I have a few more basic syntax and interpretation
questions.  For instance, the example shows values of .3,
.5 and .8, and the document allows positive, negative or
zero values.  Its not clear to me how these values would
be extracted or used because direct multiplication would
produce a very significant change in the I-V table.

Bob

Itzik Peleg wrote:

> Hello All
> 
>  
> 
> I would like to comment on BIRD97:
> 
>    1. I think that we should add quadratic parameter since the start of
>       the transition (when thinking of a transistor) is done in the
>       saturation regain and there the connection between VGS and VDS is
>       quadratic.
>    2. Since in the end of the drive the transistor is in the Ohmic
>       region the connection is linear so adding one or more parameters
>       to separate the two regions or use a table.   
> 
>  
> 
> --
> 
> Regards
> 
>  
> 
> Itzik Peleg
> 
> Board Technology Group
> 
>  
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-- 
Bob Ross
Teraspeed Consulting Group LLC     Teraspeed Labs
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