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 Adding fillers 

Last post Fri, Aug 23 2013 1:45 PM by fitz. 1 replies.
Started by ErezBS 20 Aug 2013 09:31 AM. Topic has 1 replies and 237 views
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  • Tue, Aug 20 2013 9:31 AM

    • ErezBS
    • Top 500 Contributor
    • Joined on Tue, Nov 6 2012
    • Posts 29
    • Points 400
    Adding fillers Reply

    Hi,

    Should i run incremental placement/routing after inserting the fillers? (i insert them at the end of  my flow).

     Thanks. 

    • Post Points: 20
  • Fri, Aug 23 2013 1:45 PM

    • fitz
    • Top 150 Contributor
    • Joined on Wed, Aug 4 2010
    • Kanata, Ontario
    • Posts 52
    • Points 695
    Re: Adding fillers Reply

    checkPlace, checkFiller, verifyConnectivity & verifyGeometry  will tell you if you need to redo addfiller, refinePlace and / or routeDesign.
    ( normally you run refinePlace without gap fillers in place )
    If your filler cells are totally benign as far as the routing metals go , you should be fine.

    I have to addFiller before the initial routeDesign because my DeCap filler cells have additional M1 geometries inside the typical M1 power rails.
    Luckily optDesign -postRoute is smart enough to automatically deleteFiller > optimize > addFiller > routeDesign

    Shawn  

    • Post Points: 5
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Started by ErezBS at 20 Aug 2013 09:31 AM. Topic has 1 replies.