Copper Pour Clearance Around Fiducials

KiCad 9.0.3 with a design imported from Eagle.

I had my own Fiducial footprints with 1mm pad and 2mm solder mask opening and was getting DRC errors for the solder mask bridging different nets. This was due to copper pour around the Fiducials. In retrospect, I can see the effect on boards made from the Eagle data.

In the schematic I used the symbol library links to change the fiducial symbols to KiCad native Fiducial_1mm_Mask2mm and then the properties dialog to change the footprint to the same KiCad native one.

The DRC error persists, which maybe isn’t too surprising.

Is there a way to increase the clearance around the fiducial without globally changing the copper zone clearance? I can’t open the Fiducial footprint in the footprint editor (no such option when right clicking the footprint, unlike other footprints) and I cannot see anything relating to copper layer clearance in the footprint properties.

Alternatively, is there a way to reduce the violation severity, but only for the fiducials?

Andrew

I have looked into my Fiducial 1mm footprint.

I have there only one pad (no extra pad for soldermask), but in Pad (not Foootprint) Properties I have Pad clearance set to 0.5mm and Solder mask expansion to 0.5mm.

1 Like

Thank you! That seems to work.