[SI-LIST] Re: SPICE or IBIS
- From: "Mirmak, Michael" <michael.mirmak@xxxxxxxxx>
- To: <emc_gibney@xxxxxxxxxxx>, <si-list@xxxxxxxxxxxxx>
- Date: Wed, 3 Dec 2003 09:56:45 -0800
Eoin,
Thanks for your interest in IBIS! You may wish to note that the IBIS
Open Forum has recently introduced a new and improved format for
expressing interconnect model data: the IBIS Interconnect Modeling
Specification (ICM). The specification supports both S-parameter and
RLGC matrix data in a modular way and is appropriate to connectors,
cables, devices packages and many other types of interconnect. A free
syntax parser is available.
You can find the specification in a variety of formats at
http://www.eda.org/pub/ibis/icm_ver1.0/.
The parser is available at http://www.eda.org/pub/ibis/icmchk1/.
Best of luck!
- Michael Mirmak
Intel Corp.
Chair, EIA/IBIS Open Forum
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
On Behalf Of package_char
Sent: Wednesday, December 03, 2003 2:02 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] SPICE or IBIS
Experts,
I have been researching some methods to model packages and connectors=20
and from what I have seen a common method is to extract a coupled=20
lumped/distributed SPICE model from VNA or TDR/T measurements. These=20
SPICE models can be used to model performance at high=20
speed/frequencies. My question is if I was to create an IBIS model as=20
oppposed to a SPICE model is there any limitations, for example?=20
a) the highest frequency/shortest rise time possible
b) how does it handle losses etc
As I understand there is software to convert a SPICE model to IBIS=20
format, would this be the best way to go or directly create an IBIS=20
model from measurements?=20
Regards,
Eoin Mc Gibney
CIT
emcgibney@xxxxxx
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