[Ngspice-users] level 4 hspice diode model

[Clint K. <cli...@gm...>]

Hello everybody.  I am trying to use a library for hspice that include
some level 4 diode models.  The model defs look like:

.model dblah d level=3D4 ....

ngspice does not seem to be able to handle most of the diode
parameters, including the following:

'tr', 'vr', 'jsgbr', 'jsdbr', 'jsgsr', 'jsdsr', 'jsggr', 'jsdgr',
'nb', 'ns', 'ng', 'cjbr', 'cjsr', 'cjgr', 'vdbr', 'vdsr', 'vdgr',
'ps', 'pg'

In addition, the instantiations of the diodes include the following
parameters that ngspice does not recognize:

'peri', 'pgate'

Does anybody know how I can simulate these diodes in ngspice?  Is it a
simple matter of changing the "level," as it was with nmos and pmos,
or it is more complicated?

I would appreciate any help that anybody can give me!!!!!!!!!!

-Clint