There is a similar requirement for PCB manufacturing known as 'Thieving' - If you don't have a certain amount of copper, plating will not be uniform. See: http

There is a similar requirement for PCB manufacturing known as 'Thieving' - If you don't have a certain amount of copper, plating will not be uniform. See: https://resources.altium.com/p/what-thieving-pcbs-and-why-it-done https://resources.altium.com/p/what-thieving-pcbs-and-why-it...