Printed Circuit Board (PCB) belongs to the category of electronic products. It is an electronic component with a multi-layer structure, which is mainly used to carry and connect electronic components to achieve circuit functions. The main function of the circuit board is to connect electronic components (such as resistors, capacitors, integrated circuits, etc.) together to achieve specific electrical functions.
< br >
Circuit boards are widely used in various electronic equipment, such as computers, mobile phones, home appliances, automotive electronic equipment and so on. According to the application field and the number of layers, the circuit board can be divided into many types, such as single-sided, double-sided, multi-layer, flexible circuit board and so on. Different types of circuit boards are suitable for different electronic devices and applications.
In the national industry classification, PCB belongs to the electronic component manufacturing industry, and the industry classification number is 3972 printed circuit board manufacturing