[SI-LIST] Re: about golden standard

Walter,

I'm not sure who Nicklas is but I'm one of the authors of the Golden
Standard paper.

Section 1.4 only talks about the theory.  Section 1.5 is the beginning of
the simulated results.  I make reference to a "SPICE simulator" and maybe I
should have been more clear on that.  It certainly wasn't meant to confuse
or mislead.  We used Hspice for simulation for all of our models.

Our goal was to take all of our software packages in house and generate as
many possible models in every possible way.  We would take these models and
run them through Hspice to generate results.  We consider all of the Hspice
results to be our simulated results and will be posting these results on our
website in the up an coming weeks.  It will provide a table that will show
all the results of the various models and talk a bit about why the
inconsistencies occur.  This is also the point where we hope everyone will
join in the discussion and add their results.  That's the real goal.

Regards,
Dan Piscotty
Samtec
www.samtec.com







-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of walter steffe
Sent: Tuesday, February 08, 2005 6:54 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] about golden standard

This message is for Nicklas who posted the papers on the Golden Standard.
I have just subscribed to the si-list and I have not yet understood how to
address a replay to a previous message.

I have read the part 2 of the golden standard paper which explains the
theory behind the proposed test kit and gives some comparison between the
analytical, simulated and measured curves. It is not clear to me what are

exactly the simulated ones. I have understood that the analytical curves 
are
derived from the propagation characterisics of the even/odd modes and tha
ts
is ok to me. Section 1.4 of your paper speaks of a spice model but it is 
not
explained how it is generated. It is also said that the spice simulations

have been compared with those of separate numerical solver but this data 
is
not shown in the curves.

So my question is: what is the meaning of the difference between the
analytical and the simulated curves. If the latter are all related to the

spice model, to appreciate the difference you should explain how
it has been generated and correlate the difference with the approximation
s
made in this process.

Thanks
walter steffe
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