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Monte carlo simulation error (no process variations were specified in the statistics block)

Afshin Amoo

Hello, 

I'm going to do the Monte carlo simulation on my design, but I get this error: 

Attempt to run Monte Carlo analysis with process variations, but no process variations were specified in the statistics block.

Does Anyone know what's the reason and how can I fix it?

BTW, the technology I'm working with is TSMC130n.

Thanks in advance,

Afshin

  • Hi Afshin,

    I don't know the specifics for the models you're using - it is probably dependent upon the precise variant of TSMC 130n process and the version of the models/PDK. Usually you have to include a particular model section to get the statistics blocks (so rather than some ff/ss type corner, there's usually a "stat" model section that needs to be included. In essence it needs to load a block with statistics { ... } from one of the model files. 

    This is probably covered in the documentation for the PDK - if not, you should contact TSMC as they can best advise you for the specific technology you're using.

    Regards,

    Andrew

  • in reply to Andrew Beckett

    Hi Andrew, 

    Thank you so much for your Help. 

    Yes, that was the problem and now, by adding those "stat" models, it's working. 

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