tracks to match the impedance of the upstream and downstream components. The longer the route or the higher the frequency, the better adaptation is required. When producing the printed circuit with controlled impedance, the impedance will silkscreen be controlled by acting on the dimensions of the tracks and the distance between them, i.e. the insulation.
power supply decoupling. In multilayer boards, layers of material are laminated together in an alternating sandwich: copper, substrate, copper, substrate, copper, etc.; each layer of copper is etched and any internal sleepers (which will not extend to silkscreen both outer surfaces of the finished multilayer board) are plated before the layers are laminated together.
other colors are available: yellow, black, blue, red. Screen printing is used to render useful information on the PCB board that can help users during assembly. silkscreen It is used to mark component values, part numbers, test points, polarity, etc. Screen printing does not influence the printed circuit and the possible