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Metal density/ Density check

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Hi All,

Please can anybody give me the information about Metal density/ Density check.

Thanks in advance.


Originally posted in cdnusers.org by mahecadence
Parents

  • There are two commands that you can use for spare cells. You can define your own spare cell module using the command
    createSpareModule -modulename MY_SPARE -cell {list of gates separated by spaces} -tie {TIEHI or TIELO}

    In the list of cells be sure to include flops, CTS cells etc. whatever you may feel is important.

    You can automate the placement of the spare cells using the command
    placeSpareModule -modulename MY_SPARE -util <> -stepx <> -stepy <> -offsetx <> -offset y

    Run these two immediately after loading the floorplan. Rest of the flow should remain as such.

    For decap cells use the AddFiller command. You can specify the list of decap cells that you want the tool to add.

    addFiller -prefix <> -cell {list of decap cells}

    You can run this command after postRouteHoldOpt.

    Regards,


    Originally posted in cdnusers.org by ssunder@sioptical.com
Reply

  • There are two commands that you can use for spare cells. You can define your own spare cell module using the command
    createSpareModule -modulename MY_SPARE -cell {list of gates separated by spaces} -tie {TIEHI or TIELO}

    In the list of cells be sure to include flops, CTS cells etc. whatever you may feel is important.

    You can automate the placement of the spare cells using the command
    placeSpareModule -modulename MY_SPARE -util <> -stepx <> -stepy <> -offsetx <> -offset y

    Run these two immediately after loading the floorplan. Rest of the flow should remain as such.

    For decap cells use the AddFiller command. You can specify the list of decap cells that you want the tool to add.

    addFiller -prefix <> -cell {list of decap cells}

    You can run this command after postRouteHoldOpt.

    Regards,


    Originally posted in cdnusers.org by ssunder@sioptical.com
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