RE: [IBIS] IBIS-ISS Package Modeling : The Physics of a Package Model, Presentation to IBIS-ATM 7/24/12

Walter,

It seems that it is being proposed to include x-y coordinates
and/or MCP in the IBIS specification. I am asking these
questions because I don't want to put something into the
specification that is either useless, or prevents the majority
of the simulators from working with the models, etc...

I think these questions are important and large enough to have
to address them before we put these features into the spec.

Thanks,

Arpad
===============================================================

From: Walter Katz [mailto:wkatz@sisoft.com]
Sent: Tuesday, July 31, 2012 1:25 PM
To: Muranyi, Arpad; ibis@eda.org
Subject: RE: [IBIS] IBIS-ISS Package Modeling : The Physics of a Package Model, Presentation to IBIS-ATM 7/24/12

Arpad,

The issues you bring up are MCP issues, not IBIS issues. It is of course trivial to build examples that will defeat xy coordinate matching. But I also think it would be very hard to build a real case that would defeat coordinate matching. If MCP every becomes an IBIS standard, then that would be the time to deal with these issues.

That should not prevent us from adding xy coordinates for pins and die pads into IBIS to enable MCP or equivalent.

Walter

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