![]() ![]() Another manufacturing process adds vias, plated-through holes that allow interconnections between layers. Each of the conductive layers is designed with an artwork pattern of conductors (similar to wires on a flat surface) that provides electrical connections on that conductive layer. The second is to provide reliable electrical connections (and also reliable open circuits) between the component's terminals in a controlled manner often referred to as PCB design. The first is to affix electronic components in designated locations on the outer layers by means of soldering. ![]() Part of a 1984 Sinclair ZX Spectrum computer board, a PCB, showing the conductive traces, vias (the through-hole paths to the other surface), and some electronic components mounted using through-hole mounting.Ī printed circuit board ( PCB) is a laminated sandwich structure of conductive and insulating layers.
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