BTW a level=3D4 diode is a JUNCAP diode, according to my hspice manual.=20
The circuit I am simulating uses this for the junctions between the
bulk and the source and drain. Does anybody know if there is some
kind of spice3 equivalent? Anybody have an idea on how I could
emulate this element using ngspice? Any help would be greatly
appreciated!!!!!!
-Clint
On 8/17/05, Clint Kelly <cli...@gm...> wrote:
> Hello everybody. I am trying to use a library for hspice that include
> some level 4 diode models. The model defs look like:
>=20
> .model dblah d level=3D4 ....
>=20
> ngspice does not seem to be able to handle most of the diode
> parameters, including the following:
>=20
> 'tr', 'vr', 'jsgbr', 'jsdbr', 'jsgsr', 'jsdsr', 'jsggr', 'jsdgr',
> 'nb', 'ns', 'ng', 'cjbr', 'cjsr', 'cjgr', 'vdbr', 'vdsr', 'vdgr',
> 'ps', 'pg'
>=20
> In addition, the instantiations of the diodes include the following
> parameters that ngspice does not recognize:
>=20
> 'peri', 'pgate'
>=20
> 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?
>=20
> I would appreciate any help that anybody can give me!!!!!!!!!!
>=20
> -Clint
>
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