Symmetry plane in the middle between top and bottom side. Symmetry means equal substrate thickness and copper weight in both halves, preferably also similar copper areas. Asymmetrical stack-ups are expected to cause PCB warping.
Symmetry plane in the middle between top and bottom side. Symmetry means equal substrate thickness and copper weight in both halves, preferably also similar copper areas. Asymmetrical stack-ups are expected to cause PCB warping.