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 Through via on trace does not generate DRC error. 

Last post Wed, Mar 12 2014 7:11 AM by steve. 5 replies.
Started by esemper1 11 Mar 2014 06:40 AM. Topic has 5 replies and 452 views
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  • Tue, Mar 11 2014 6:40 AM

    • esemper1
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    Through via on trace does not generate DRC error. Reply

    Hello all,

     I had  a few B/V vias on my design and decided to swapp them out for through vias to lower manufacturing cost. The problem is that some of the BB vias that were placed under a trace are not generating DRCs after being converter to through vias. These now go through the traces and therefore cut the traces in secgements. How can I have PCB editor 16.5 generate DRCs for these?

    Here is what I have tried: Dtabase check, Deleting all BB vias and leaving only my through vias, refreshing all padstacks, rechecking for DRCs.

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    • Post Points: 20
  • Tue, Mar 11 2014 8:04 AM

    • steve
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    Re: Through via on trace does not generate DRC error. Reply

     How did you "swap" the BB Vias out ?

    • Post Points: 20
  • Wed, Mar 12 2014 5:26 AM

    • esemper1
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    Re: Through via on trace does not generate DRC error. Reply

    Steve,

    I used the Edit > Replace function. I also replaced some with the Via swap function. However, now i cant tell wich vias were replaced with what funciton.

    • Post Points: 20
  • Wed, Mar 12 2014 5:52 AM

    • steve
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    Re: Through via on trace does not generate DRC error. Reply

     I'm assuming you mean Tools - Padstack - Replace or hover RMB - Replace padstack. The DRC's just activate straight away when I do this. Are all the DRC's turned on ? Are the Spacing rules set correctly ? Have you use Unused Pad Supression ? If so are the Hole To DRC's enabled ? Can you run a DB Doctor ? Are you running the latest hotfix ?

    Sorry for all the questions just trying to get to the bottom of your issue. 

    • Post Points: 20
  • Wed, Mar 12 2014 6:04 AM

    • esemper1
    • Not Ranked
    • Joined on Wed, Nov 27 2013
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    Re: Through via on trace does not generate DRC error. Reply

    Steve,

     I deactivated the Unsed pad supression. Now I have many DRCs because all the anular ring of all vias was reinstated which helps me spot where i have a via on a trace. I have more DRCs than I needed now but I can easily slide the vias further away from the traces. Can I get rid of all those DRCs and re-supress all un-used pads again?

    • Post Points: 20
  • Wed, Mar 12 2014 7:11 AM

    • steve
    • Top 10 Contributor
    • Joined on Fri, Jul 18 2008
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    Re: Through via on trace does not generate DRC error. Reply

     Yes - clear the DRC's using Slide as you would normally then once you are finished just enable the Pad Supression again. It's that simple.

    • Post Points: 5
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Started by esemper1 at 11 Mar 2014 06:40 AM. Topic has 5 replies.