Contact SADELEC PCB

with controlled impedance, the impedance will be SADELEC PCB controlled by acting on the dimensions of the tracks and the distance between them, i.e. the insulation. For a multilayer printed circuit with a specific stack-up, it must be taken into account that the internal tracks with controlled impedance are shielded by

black. Only the outer layers need to be covered with solder mask, the inner copper layers are protected by the adjacent substrate layers. The soldering mask soldermask is made of a fluid substance like an ink and is applied in a thin layer similar PCB SADELEC to varnish

metallized holes (vias) for passing connections between layers of copper as solid conductive areas for electromagnetic shielding or other purposes. Each of the conductive layers is designed with copper tracks (similar to wires on SADELEC PCB a flat surface) that provide electrical connections on that conductive layer. Another manufacturing process adds plated