Question concerning pouring a ground plane

I know how to pour a ground plane in eagle cad.

My question concerns not the how, but the how much! I am laying out a shield for an Arduino Mega and my board contains traces and through hole pads and vias. It is a two sided board. I want to pour a ground plane on the bottom and would like to know if it is acceptable to pour the entire bottom or simply the least amount to catch all the ground connections. Is there some sort of rule-of-thumb or best-practice ideas for making this sort of decision?

Any enlightenment will be appreciated.

Vic

KC2GUI

windreadertoo ATSIGN gmail DOT com

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Former Member over 15 years ago

Hi Vic,
Unless there is some reason in your particular design to minimise the area of copper then don't. As a general rule the larger and more comlete the ground plane the better! Much longer and technical answers can be found in texts on EMI/RFI reduction.
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Former Member over 15 years ago

Hi Vic,
Unless there is some reason in your particular design to minimise the area of copper then don't. As a general rule the larger and more comlete the ground plane the better! Much longer and technical answers can be found in texts on EMI/RFI reduction.
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