PCB Copper Balance Concerns to Know for Manufacturing
Circuit boards can get out of whack too, and when that happens they can bend and twist in ways that are not good for the board. This effect happens when some areas of the board have more copper than others. To prevent this, it is a good idea to even out the amount of copper fill used between the different open areas of the board. Here is some more information on why this problem occurs, and what you should do to ensure that your circuit board has good PCB copper balance.