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Gaussian distributed variables

Malolo

Hi,

My circuit has 3 vaiables that are independent and follow gaussian distribution, I have 1-sigma values of them respectively and woud like to apply the distribution to them. The ideal scenario for me would be running 100 runs and each time these 3 variables take different values but follows gaussian distribution indepently.How can this be done in Cadence ADE? i'm using ic 5141, simulator is spectre.  btw, i dont have mc model file for this. 

 

thanks a lot!,

Malolo

  • Malolo,

    You'll need to create a statistics block defining the variation of these parameters in a file, e.g. stats.scs :

    statistics {
      process {
        vary param1 dist=gauss std=5
        vary param2 dist=gauss std=1.2
      }
    }

    then in ADE define these two variables as design variables, and the value of them will set the mean. Reference the above file via Setup->Model Libraries. Then use the variables on components in your design.

    Having done that you can run monte carlo with 100 runs, and you'll get the variation.

    Regards,

    Andrew.

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