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  3. Cadence 17.4 S019 has shorts appearing on copper pours

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Cadence 17.4 S019 has shorts appearing on copper pours

tmd63
tmd63 over 2 years ago

I have an inner layer which is a ground plane and there are microvias going through this.

But when I check the copper pour. It has shorted out some pins! There is no DRC error I and would have to search 4000+ connections to see if the plane has shorted.

I must use a hatch plane. a solid plane does not short but it is a requirement of the design.

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  • DavidJHutchins
    0 DavidJHutchins over 2 years ago

    Instead of using a hatch plane, could you use a solid plane with a matrix pattern of voids like the image below?

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  • DavidJHutchins
    0 DavidJHutchins over 2 years ago

    Instead of using a hatch plane, could you use a solid plane with a matrix pattern of voids like the image below?

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  • tmd63
    0 tmd63 over 2 years ago in reply to DavidJHutchins

    The problem with this how would you set each via as to not have undercuts? How would you set the area to cover a PWB that is 14 inches long and 1.75 inches wide but avoid all through pins and vias? This is where a hatched shape performs greatly, normally!

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