I routed a 4-layer board using the default via. When I put in my ground and VCC planes the vias had no clearance. How do I fix it? Do I have to make my own vias? (I thought it was automatic). Next time I will draw the inner ground and VCC planes before I route. Geeezzz.

  • \$\begingroup\$ Have you set up the plane fill correctly? You need to tell it what net it should be connected to, what clearance you want, whether to use reliefs or not, etc. Also, remember it will connect to all the vias that are on the same net. \$\endgroup\$ – Oli Glaser Sep 20 '12 at 22:04
  • \$\begingroup\$ There was a prompt for what net for the plane, but I didn't see where to set clearance, or reliefs for the plane. I know how to set those in pad designer for through-holes. \$\endgroup\$ – BSEE Sep 20 '12 at 22:35
  • \$\begingroup\$ Hmmm, has to be there somewhere. Sorry I can't help more as I don't use PCB Editor (what package is it part of? who makes it?) \$\endgroup\$ – Oli Glaser Sep 20 '12 at 22:42
  • \$\begingroup\$ @OliGlaser I believe he's talking about Altium \$\endgroup\$ – fceconel Sep 20 '12 at 22:44
  • \$\begingroup\$ Cadence. My company gives me a license to learn provided I don't bug them for help. I just had a thought, should I change the stackup type from plane to conductor? \$\endgroup\$ – BSEE Sep 20 '12 at 22:58

I ended up changing the layer type to conductor and changing the plane shape to dynamic copper and it worked. There was clearance around the vias for thelayers they were not attached too.


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.