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  2. Allegro X PCB Editor
  3. Dynamic shape flood spacing

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Dynamic shape flood spacing

Lock2002
Lock2002 over 5 years ago

Is there any way to find an resolve issues like this other than visually? 

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  • RFinley
    RFinley over 5 years ago

    The gap in your dynamic shape? 

    But, that is very short in length and cannot radiate.  I'm going to guess, it is on an internal layer and you cover it when you flood the surface layers.   

    In my experience, the board still passes EMC.

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  • Lock2002
    Lock2002 over 5 years ago in reply to RFinley

    it's not a EMI issue, it's a fabrication issue. I realize it's same net, but I still get grief from my DFM guy and the fab house. 

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  • steve
    steve over 5 years ago in reply to Lock2002

    Does the Shape - Check Shape command find it?

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  • steve
    steve over 5 years ago in reply to Lock2002

    Does the Shape - Check Shape command find it?

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  • Lock2002
    Lock2002 over 5 years ago in reply to steve

    Shape checking completed ... 0 problem pts found.

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  • Lock2002
    Lock2002 over 5 years ago in reply to Lock2002

    I can tinker with the shape void controls to make it go away, but another pops up somewhere else

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  • steve
    steve over 5 years ago in reply to Lock2002

    OK - Try adjusting your Min aperture for artwork fill (Global Dynamic Params) and see if that stops this type of issue being generated in the first place.

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  • Lock2002
    Lock2002 over 5 years ago in reply to steve

    I have gap width set to 6 mil. I can change it to 10 mil and that particular one goes away, but others pop up.

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  • RFinley
    RFinley over 5 years ago in reply to Lock2002

    (oh yeah, Steve mentioned this) There is a setting under Shape> Global Dynamic Shape Parameters> Void Controls tab

    "Minimum aperture for gap width".  Basically manages the smallest aperture used to generate dynamic shapes.

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