![]() It takes the form of a laminated sandwich structure of conductive and insulating layers: each of the conductive layers is designed with an artwork pattern of traces, planes and other features (similar to wires on a flat surface) etched from one or more sheet layers of copper laminated onto and/or between sheet layers of a non-conductive substrate. ![]() Part of a 1984 Sinclair ZX Spectrum computer board, a printed circuit board, showing the conductive traces, the through-hole paths to the other surface, and some electronic components mounted using through-hole mountingĪ printed circuit board ( PCB also printed wiring board or PWB) is a medium used to connect electronic components to one another in a controlled manner. For the mainboard of personal computers, see Motherboard. ![]()
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