if i want to do monte-carlo simulation by varying only one specific variable (ex. oxide thickness of mosfet ), how can i do??
i understand that if i attach monte-carlo library, then monte-carlo simulation will be done about many variable (ex. device mismatch(Width, Length, Vth...) or Process varaition, or Mismatch/Process )
Just (out)comment the vary lines which you don't want to be varied in the STATISTICAL Section of the model file (s. slide 11 of the above linked tutorial).
Just (out)comment the vary lines which you don't want to be varied in the STATISTICAL Section of the model file (s. slide 11 of the above linked tutorial).
Yes, you can do that, s. p. 24 of the above linked-to tutorial. In this menu you can select the parameter to be swept. Here's an example for the result of such an MC sweep (feedback element value of opAmp swept):
Edelay in_delay 0 DELAY in 0 TD='td1' $$ signal "in_delay" is the "in" signal delayed by TD='[B]td1[/B]'
+ where [B]td1[/B] is your parameter to be swept.
... or in any other element/model/subcircuit where you need this parameter.
BTW: It is possible that DELAY is a reserved keyword in SPICE, so you shouldn't name your parameter so, but (e.g.) td, td1, td2 .