HSPVER defaults to the current release being executed. For example, HSPVER=97.2 and VERSION=3.1 reproduce results from Hspice 97.2 using the BSIM3 Version 3.1 model. VERSION selects the Berkeley release version and HSPVER selects the Star-Hspice release version. (See the BSIM3 home page at for additional release information from the UCB group.) To minimize confusion and maintain back compatibility, you can select the model parameters VERSION and HSPVER. There are, as of the 99.2 release, five official BSIM3v3 releases from Berkeley and several Star-Hspice LEVEL 49 releases. However, do not change the VERSION specification in existing model cards without consulting the foundry or model extraction group that created the original model cards. This version provides the most stable and up-to-date representation of the UCB BSIM3v3.2.2 model. Selecting Model Versions Recommended BSIM3v3 VersionĪs of the Star-Hspice 99.2 release (June 1999), the recommended BSIM3v3 model specification is LEVEL=49, VERSION=3.22. LEVEL 49 compliance with Berkeley BSIM3v3 can be achieved by setting ACM=10. The single exception in LEVEL 49 is that ACM defaults to 0. For LEVEL 53, in all cases, Hspice-specific parameters default to OFF. In most practical situations, these improvements will not affect compliance with the Berkeley release, but will improve convergence and simulation time.īoth LEVELs 49 and 53 support a superset of model parameters that include Hspice-specific parameters. Provides improvements in numerical stability. (See the Model Parameter Range Limits below for more details.) These five parameters include NGATE, DVT1W, DVT1, DSUB, DROUT. LEVEL 49 issues a warning that the parameter range has been exceeded but continues with simulation, whereas, in the Berkeley release, a fatal error is issued and simulation is aborted. Differences occur only in the severity of warning for five parameters. Provides parameter range limits that are identical to that of the Berkeley release.
LEVEL 49 maintains compliance with the UC Berkeley release of BSIM3v3 with the following three exceptions:Įliminate differences in default parameter values by explicit assignment of the parameters CAPMOD, XPART and by setting ACM=10. This compliance includes numerically identical model equations, identical parameter default values, and identical parameter range limits.
HEXIO LEVEL 49 FULL
LEVEL 49 is an Hspice-enhanced version of BSIM3v3 while LEVEL 53 (first released in Star-Hspice 98.2) maintains full compliance with the Berkeley release. The BSIM3v3 MOS model from UC Berkeley is available in Star-Hspice as LEVEL 49 and LEVEL 53.
0 kommentar(er)
