* Able to download 45nm models from :

  https://analogicdesign.com/students/netlists-models/model-files

  file p045.zip has both nmos and pmos model files




  It appears that these models are also used by schools




* Nice 0.6u Level 3 models

  https://www.seas.upenn.edu/~jan/spice/spice.models.html

* https://bsim.berkeley.edu/models/bsim4/

  BSIM4 4.8.2 --> http://bsim.berkeley.edu/BSIM4/BSIM4_4.8.1_20170215.tar.gz


* http://bsim.berkeley.edu/models/bsim3/

  BSIM3 3.3.0 --> http://bsim.berkeley.edu/BSIM4/BSIM3/ftpv330.zip


* http://ptm.asu.edu/latest.html

  45nm High-K --> http://ptm.asu.edu/modelcard/45nm_MGK.pm

  45nm High-K High Performance --> http://ptm.asu.edu/modelcard/HP/45nm_HP.pm

  45nm High-K Low  Performance --> http://ptm.asu.edu/modelcard/LP/45nm_LP.pm

  130nm BSIM4 --> http://ptm.asu.edu/modelcard/2006/45nm_bulk.pm
   90nm BSIM4 --> http://ptm.asu.edu/modelcard/2006/65nm_bulk.pm
   65nm BSIM4 --> http://ptm.asu.edu/modelcard/2006/90nm_bulk.pm
   45nm BSIM4 --> http://ptm.asu.edu/modelcard/2006/130nm_bulk.pm


* Nice Level 3 model parameter list 

  https://edadocs.software.keysight.com/pages/viewpage.action?pageId=5908948

* Nagi Spice models

  https://www.ee.iitm.ac.in/~nagendra/cadinfo.html

* Level 1 Models - Razavi CMOS p. 35

* Level 3 HSPICE equations

  hspice_mosfet.pdf p. 136

  please make a python3 version of this