Thanks, I might ask there.
Another problem I ran into: I would like to parametrise a model, so I created an inline subcircuit containing only a model statement as described in the manual. Then I instantiate the model subcircuit and use the instantiated model for my device as follows:
inline subckt new_model_subckt
model new_model_subckt old_model vth0=0.5+dvt
M0 (net1 net2 0 0) new_model l=1u w=1u
However, Spectre doesn't seem to like it and stops halfway through without an error message. Do you have an idea what's wrong here? Is there a way to parametrise a model without having to create a subcircuit containing the device instance?