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Adding fillers

ErezBS

Hi,

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

 Thanks. 

Parents

  • 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  

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  

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