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Comments on Power polygon and matching ground

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Power polygon and matching ground

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For power polygon that primarily carry DC, how critical is it that it is located above a ground plane?

If it is important, how crucial is it that the polygon completely overlaps the ground plane beneath it?

Additionally, if overlap is important, how significant is it that the ground plane remains continuous and is not split by traces?

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1 comment thread

What are your concerns for crosstalk or EMI and parasitic capacitance? Do you think all this power o... (1 comment)
What are your concerns for crosstalk or EMI and parasitic capacitance? Do you think all this power o...
TonyStewart‭ wrote 15 days ago · edited 15 days ago

What are your concerns for crosstalk or EMI and parasitic capacitance? Do you think all this power or ground plane can hurt anything? For example, ground/power planes are bad under inductors if lowering self-resonant frequency causes a problem .