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dcmatch mth=1m is not working

Kakhandaki

Hi,

when I try to run the dcmatch analysis by using fallowing command

dcmatch ( MINUS PLUS )  dcmatch mth=1m method=statistics where=rawfile variations=mismatch oppoint=rawfile annotate=status 

I was expecting simulator to produce the mismatch contribution upto 1mV only but I am getting contribution up to 10uV.

is there any way to filter out values lower than set threshold(in my case it is 1mV)

Thanks and regards

Kakhandaki

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  • Andrew Beckett

    Hi Kakhandaki,

    Something is definitely odd with how the threshold is handled. I don't entirely understand what it actually means - it's supposed to be a relative threshold (so it's unitless, i believe), but I can't quite figure out how it behaves. For example, in my case I set it to "1" (which is the maximum) and a few contributors were filtered out; if I set it to 0.5, then I have the same contributors filtered as if I don't specify it, and I can't see why those that did get filtered got filtered at all!

    So I would suggest contacting customer support. I wonder whether something has been incorrectly implemented in method=statistics mode (that was the later addition - added in around MMSIM12.1 if my memory is correct).

    Regards,

    andrew.

  • Kakhandaki
    in reply to Andrew Beckett

    Hi Andrew,

    Yes definetly something is odd, Thanks for your reply, I will contact customer support.

    Thanks

    Kakhandaki 

Reply
  • Kakhandaki
    in reply to Andrew Beckett

    Hi Andrew,

    Yes definetly something is odd, Thanks for your reply, I will contact customer support.

    Thanks

    Kakhandaki 

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