Ключевые слова: background, board, chip, circuit, circuit board, circuit traces, close up, closeup, component, conduction, conductive tracks, connection, copper foil, detail, device, electrical, electrical component, electrical connection, electrical product, electricity, electronic, electronics, engineering, equipment, etched, green, hardware, industry, metalization, pcb, printed, printed circuit board, science, semiconductor, sheet, solder, solder resist, technology, throughhole, track,