V-AMS Compact Modeling Extensions subcommittee
Minutes of Sept. 23, 2003

Attendees:
Geoffrey Coram, Analog Devices
Ilya Yusim, Cadence
Jeroen Paasschens, Philips
John Moore, Agilent
Laurent Lemaitre, Motorola
David Zweidinger, Texas Instruments
Marek Mierzwinski, Tiburon
Peter Liebmann, Xpedion

1) Previous minutes (Sept 9) approved

2) Multiplicity factor
Peter mentioned that OOMRs can *contribute* to things in
other modules, eg a mutual inductor can contribute to the
branches of the inductors it couples.  Exactly how this
works for m-factor (of the Ks and the Ls) needs to be
thought through.

3) Optional terminals
We considered proposing terminal defaults, in addition to
the $connected feature, for cases such as a multi-input
dependent sources, where explicitly coding the default
would be cumbersome.

4) Limiting
There was general agreement that we need some method of
specifying limiting functions beyond limexp, and the
proposed syntax seems to be general enough.

5) Model cards
Peter offered to compose a spice-compatible example,
essentially instantiating the basic compact model
inside a module that hard-codes the "model parameters"
and has the instance parameters as its parameters.
He said this setup could be recognized and optimized
by the simulator.

It was noted that Silvaco is apparently following Tiburon's
example, allowing any Verilog-A parameter to be a model
parameter, and any instance can override parameters
specified on its model card.

6) ADMS
ADMS is now available on SourceForge at
http://sourceforge.net/projects/mot-adms