* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Q: What is the importance of the following excerpt from the attached .lis file:
*****************************************************************
**warning BSIM3v3 VERSION parameter does not appear in the model card!!!
Failure to explicitly set VERSION may result in inaccurate results!
*****************************************************************
A: Avant! implemented the BSIM3v3 models released from UC Berkeley in the forms of LEVEL 49 and LEVEL 53. Since implementation, UC Berkeley has released patches and Avant! has implemented them as 3.1 (default for 98.2), 3.2 (default for 98.2 and 98.4) and 3.22 (default for 99.2, 99.4 and 2000.2).
If your models were developed for the VERSION = 3.1 release and this parameter is not present in your models/libraries, then Star-Hspice defaults to 3.22 (in Star-Hspice 2000.2 release), which may give you unexpected results.