is MOSFET Level = 69 available in Xyce?

[Rob Hannebauer]

I've searched high and low to see if Model level = 69 is supported in Xyce.  I apologize for posting here if I've overlooked something obvious.

Level 69 is used in Bulk CMOS (Non epi wafer) processes like the cmhv7 180 nm process from IBM and a number of foundries still run this either as a variant or as a licensee of IBM even though this is no longer supported by IBM.

Any pointers in this direction would be appreciated.  Thanks in advance.

[xyce-users]

Xyce model levels do not necessarily correspond to model levels in other simulators, so asking about specific level numbers isn't the best way to ask this question unless you also specify what simulator's level 69 model you're referring to.  It is better to reference the underlying model that the simulator is using (e.g. "BSIM 6", "BSIM-CMG", etc.).  Doing so also makes it easier to find the answer in our reference guide.

If you are referring to HSPICE's level 69 MOSFET, as far as I can tell that is the PSP103.2 model with self-heating.    Xyce supports the PSP 103.2 model with self heating, but it is the level 1031 MOSFET in Xyce (the level 103 model is the PSP 103.2 model without self-heating).

[xyce-users]

Correction:  Xyce has the PSP MOSFET model 103.4 as its level 103 (without self heating) and 1031 (with self heating).  These models are backward compatible with the 103.2 model.

[Rob Hannebauer]

Excellent!  Thanks for the information,  It is indeed the Spice (HSpice formatted foundry model) that I was referring to.

When I do the testing I'll pop back to verify!

Thanks again.

[xyce-users]

It is our intent in the short term to have issues like this handled by the XDM netlist translator, and for many MOSFET models XDM does indeed know the correspondence between HSPICE level numbers and Xyce's (for example it correctly translates HSPICE mosfet level 70 to Xyce level 70450 (BSIM-SOI 4.5.0).  But in this case, the level 69 (PSP 103 with self heating) is not translated yet.  We've opened an issue in the XDM tracker to get that change made.

If you find model levels in HSPICE that Xyce does not seem to support, the first thing to do is to find out what underlying model that level implements, and see if Xyce implements that as some other level.  We are interested to know which models are used in the wild that are not currently translated by XDM.