hspice simulation problem

[rachel607]

How could I use capacitor model in netlist?

The capacitor is described in model file as follows:

.lib cap
.subckt mim 1 2 mim_length=10u mim_width=10u
.param .......
......
cap 1 2 c="#expression"
.ends mim
.endl cap

 

[ravirajdv]

Hi,
Get the hspice manual and get the parameters for the caps, meaning checkout what exactly mim_width, mim_length and other parameters (tempco, diode areas) are quoted in the manual. Create a model card like-
.model mim_cap c
+(
+mim_width='10u+dw'
+mim_length='10u+dl'
.
.
.
+)
.param dw=-0.004 dl=0.0032 and so on
My guess is this should work, try out and let me know.

Regards,
RDV

 

[rachel607]

Thank you for your help and your information.
I have dealed with it.
It is defined by .subckt. So, I just write it in netlist as XC1 not C1.