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Minimum Blind/Buried Via Gap (L1-L2 and L11-L12)

Lock2002

I have a design with one buried via L2-L11 and two micro vias (L1-L2 and L11-L12). I do not want my microvias overlapping the buried via, but I don't care if the top and bottom micro-vias overlap for obvious reasons. 

Is there any way to relay this information to Allegro so I can get rid of the 500 DRCs? Or am I just stuck with waiving them manually?

Thanks

  • redwire
    Which version Allegro? And which license level do you have? MVIA errors change depending on license...
  • oldmouldy
    You might need to set the BBVIA_SEPARATION, Drawing level property, Edit>Properties, set the Find drop-down to Drawing and More to get to the properties. By default "infinite" layers are considered for BB Via separation, try setting a value of 2 (for adjacent layers only) for BBVIA_SEPARATION, and the DRC for Top / Bottom BB Vias should be gone.
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