change model parameter in Cadence Virtuoso

[yans123]

Hi,

I created some ring oscillator structure in cadence virtuoso.
I want to test the sensitivity of the frequency to change in
the threshold voltage of the transistors.
How can I create parametric analysis to show this (i.e. frequency vs. Vth graph) ?

Thanks!

 

[Milad-D]

You Can do Monte Carlo Simulation Which is more scientific way of doing it. I think in ADE window==> tools ==> Monte-carlo. I should mention that your model must include these variation data for Vth anf unCox.

 

[yans123]

Thanks for your reply.
But I'm doing this for research purpose so I'm using PTM spice file as my model library,
and not a complete Virtuoso PDK from a real manufacturer.
Is there a way to make parametric analysis on a model parameter?
(i.e. to make the sweep on my model parameter).

Thanks