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rc extraction in encounter

berbagci

Hi,

 I'm using encounter for a tape-out. I want to use QRC for higher accuracy. However, I think I need to tell the tool where the executable for QRC is. How do I do that? Modifying PATH variable didn't help. Is there a command to do that?

In addition, I know for static timing analysis, coupling capacitances are not extracted seperately with setExtractRCMode -coupled false command. However, when I do timeDesign with -si option, I see some negative slack. Since the block I'm working on is a timing critical one, I need to make sure timing is accurate. You think I should take signal integrity into account for timing analysis and optimization?

Thanks!

  

Parents

  •  below command helpful at optimization step:

    setExtractRCMode -engine postRoute

     setExtractRCMode -effortLevalmedium

    setDelayCalMode -engine aae -considerMillerEffect true -ignorNetLoad false..

    check and update

    Thanks,

    Ajay

Reply

  •  below command helpful at optimization step:

    setExtractRCMode -engine postRoute

     setExtractRCMode -effortLevalmedium

    setDelayCalMode -engine aae -considerMillerEffect true -ignorNetLoad false..

    check and update

    Thanks,

    Ajay

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