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  1. #1
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    Derate Factor while calculating delay

    Why we used derate factor while calculating delay of a path ? and
    What is the impact of derate factor, if we do not consider at all?

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  2. #2
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    Re: Derate Factor while calculating delay

    Quote Originally Posted by akhil_psm View Post
    Why we used derate factor while calculating delay of a path ? and
    What is the impact of derate factor, if we do not consider at all?
    derate factor is helpful for some simple rule of thumb estimation here and there. say, you are porting your design to a new library that is promised to be 10% faster. you can use the old library, apply 0.1 derate and see what you get.

    in practice, it is rarely used. a flat derate cannot capture how complex process variation is.
    Really, I am not Sam.



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