1
\$\begingroup\$

I have the following footprint in my PCB library with 6 through hole pads: PCB Screenshot

When I add the purple keep out area (to either the Keep-Out layer or the top layer), I get a bunch of short circuit warnings when I validate the footprint:

[Warning] Component Validator Shorted Copper Connection Between Pad Free-6(150mil,25mil) on Multi-Layer And Pad Free-4(100mil,25mil) on Multi-Layer

I tried unchecking both vias and through-hole pads in the keepout fill properties, but the warnings still appear. If I remove the keepout fill, the warnings go away.

I'm fairly new to Altium but I don't understand how a keep-out area could cause a short circuit. Does anyone have any ideas of what might be happening?

\$\endgroup\$
2
\$\begingroup\$

Your pads are inside the keep-out area. You can modify the keepout to be object-specific or you could just place a small track-like keepout horizontally between the pins (not touching them) which will keep you from routing tracks between the pins on your footprint.

The latter way is how I did it on a similar Tag-Connect footprint. Possibly older versions of Altium lacked the feature to make keepouts object-specific, I don't really recall why it was done that way.

\$\endgroup\$
3
  • \$\begingroup\$ If it's upset about the Pads, how come unchecking SMD Pad and TH pad in the keep-out options doesn't make the error go away? \$\endgroup\$
    – cvanbeek
    Aug 26 '21 at 15:35
  • \$\begingroup\$ The DRC uses clearance constraints so it will complain about the design you have. Not sure about the component validator. \$\endgroup\$ Aug 26 '21 at 16:01
  • \$\begingroup\$ Thank you for your response but for this question my concern is the component validator \$\endgroup\$
    – cvanbeek
    Aug 27 '21 at 17:55

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.