You can allow metal fill insertion within the vertical extension of the net on

You can allow metal fill insertion within the

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option. You can allow metal fill insertion within the vertical extension of the net on the adjacent layers by using the -fill_over_critical_nets option. Note: You can specify the regions in which to perform timing-driven metal fill insertion, as described in “Specifying the Regions for Metal Fill Insertion” on page 9-53 ; however, you cannot specify the layers. When performing timing-driven metal fill insertion, the signoff_metal_fill command inserts metal fill on all routing layers. During timing-driven metal fill insertion, the signoff_metal_fill command Performs timing analysis, including multicorner-multimode analysis, to minimize timing impact. Identifies timing-critical nets based on the options you specify. Invokes IC Validator to perform metal fill insertion. When you perform timing-driven metal fill insertion, you must always use the default FILL view. By default, when you run timing-driven metal fill insertion, the signoff_metal_fill command removes all existing metal fill from the design and then inserts metal fill in the specified regions, except in the areas around the critical nets. To do timing-driven metal fill insertion on the specified regions and keep the other existing metal fill, use the -eco option. You cannot use -append option when performing timing-driven metal fill insertion.
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Chapter 9: Chip Finishing and Design for Manufacturing Inserting Metal Fill 9-55 IC Compiler Implementation User Guide Version D-2010.03-SP2 Metal Fill Removal To remove all metal fill from the design, use the -purge option (or select “Remove fills” in the GUI). When you use this option, you must use the default FILL view. You can specify the layers on which to remove the metal fill by using the -select_layers option. You can specify the regions from which to remove the metal fill by using the -bounding_boxes option. No other options are supported with the -purge option. For more information about specifying the layers for metal fill removal, see “Specifying the Layers for Metal Fill Insertion” on page 9-52 . For more information about specifying the regions for metal fill removal, see “Specifying the Regions for Metal Fill Insertion” on page 9-53 . Post-ECO Metal Fill Cleanup After you perform metal fill insertion and ECO routing, you should use the signoff_metal_fill command to remove any metal fill that overlaps a net. To remove the metal fill that overlaps any net, use the -remove_overlap_with_nets {*} option (or select “Post-ECO fill” in the GUI and select “All nets” in the Post-ECO tab). To remove the metal fill that overlaps specific nets, use the -remove_overlap_with_nets nets option (or select “Post-ECO fill” in the GUI and specify the nets in the “Selected nets” field in the Post-ECO tab).
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