Control Spacing Value During Geometry Add Backs
When Abstract Generator creates a cover blockage with pin cutout, it automatically adds back geometries that are located near the boundaries. Geometries that are located between the metal_max_spacing value and metal_min_spacing value are added back. Depending on your requirement, you can specify the distance within which the geometries need to be added back. For example, for some designs, a large number of geometries may be located within this distance. In such cases, instead of adding back all the geometries, you can reduce the spacing value. Use the absSetBinOption( "Core" "AbstractBlockageUserDefinedDistanceForAddBack" "") option to control the spacing values.
absSetBinOption( "Core" "AbstractBlockageUserDefinedDistanceForAddBack" "(M1 0.5) (M2 0.6)")
In the above example, for M1 cover blockage, add back geometries will be searched within distance of 0.5 and for M2 cover blockage, add back geometries will be searched within the distance of 0.6.
In the cover blockage model, all shapes of the specified layer that are close to or are partially overlapping with the PR boundary are retained, and created as addbacks. Shapes of the specified layer that are deep inside the PR boundary or are completely outside the PR boundary are lost.
In the detailed blockage model, all shapes of the specified layer that are inside, outside, or overlapping the PR boundary are created as blockages.
Related Topics
Modifying Blockage Geometry in the Abstract View
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