Sliver and Peelable Repair DFM

The Sliver & Peelable Repair DFM finds and fixes slivers in signal, power & ground, and solder mask layers. Slivers are fixed by adding a patch to fit on the sliver.

Definitions
Sliver - a spacing between positive features which can be filled by adding a positive feature.
Sliver Width - the spacing value between the layer features.
Sliver Length - the length of the patch needed for sliver filling.
Local Spacing - the sliver which cannot be filled.

These definitions apply to positive signal layers, and to negative power & ground and solder mask layers. (Negative signal layers and positive power & ground layers are inverted first.)

Positive soldermask layers are not supported. In this case the patches are also inverted.

Notes

For signal layers, the sliver definition is restricted to features that belong to the same net.

This action does not fix acute angle slivers.

This DFM action can be run on any layer. It is governed by the ERF file local_min.erf .