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 How to identify fractional cells 

Last post Tue, Dec 12 2006 3:01 PM by archive. 1 replies.
Started by archive 12 Dec 2006 03:01 PM. Topic has 1 replies and 1222 views
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  • Tue, Dec 12 2006 3:01 PM

    • archive
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    How to identify fractional cells Reply

    In Encounter I am getting the following message

    Design contains fractional cell.

    does anybody knows how to report which cell(s) are having this problems from Encounter?

    Thanks,
    Eric.


    Originally posted in cdnusers.org by evenditti
    • Post Points: 0
  • Wed, Dec 13 2006 4:46 AM

    • archive
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    • Joined on Fri, Jul 4 2008
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    RE: How to identify fractional cells Reply

    Hi Eric,
    Fractional cells are cells, who's width or hight is not an integer multiplied by minimum site width or hight defined in the technology LEF (core dimention). For example:
    SITE COREHD
    CLASS CORE ;
    SYMMETRY Y ;
    SIZE 0.200 BY 1.800 ;
    END COREHD
    You can write script, that checks the LEF of your cells, which one of them is not an integer multiplied by the site dimentions, or you can try to add filler cells. When Encounter meet the fractional cell, it will not succed placing minimal filler beside it and you will receive it's coordinate as warning. (never tried this, but I hope it will work)
    Regards,


    Originally posted in cdnusers.org by Stalker
    • Post Points: 0
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Started by archive at 12 Dec 2006 03:01 PM. Topic has 1 replies.