Printed circuits in electronic device Printed Circuit Boards (PCBs) are essential components in almost all electronic devices, from simple LEDs to complex supercomputers. They are made of insulating material and copper sheets, forming conductive pathways that allow electricity to reach all components. These components, which are soldered onto the PCBs, control various functions of the device, making the PCB a critical part of what is often referred to as the "Motherboard" or the "heart" of the device. China is a leading manufacturer in the global PCB industry, with production values reaching approximately 7 billion USD in 2016.
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