Just finishing a fairly simple board (2 layer board) and find that I have a fairly large area (relative to the board size) of unconnected copper copper zones/polygons on both sides of the board.
I thought it was a good idea to leave these unused areas of copper since it should make manufacturing quicker since less copper needs to be etched away.
However, what is the rule of thumb in regards to this? Could the two areas of unconnected copper cause some unpleasant effects, work as an antenna or behave like a capacitor?
Any advice?
Thanks.