PCB circuit board, also known as printed circuit board, is the provider of electrical connection of electronic components for more than 100 years; the industrial output value accounts for about a quarter of the total output value of electronic components, which is more important in each electronic component segment industry, and the flexible PCB board (FPC) is one of the fast growing sub-industries in the PCB industry. Its design is mainly layout design; the main advantage of using the circuit board is to greatly reduce the wiring and assembly errors, and improve the rate of automation level and labor productivity. As an important electronic connector, PCB is used in all electronic products, and is considered as the mother of electronic system products. Printed electric circuit boards will be used in both large machines or personal computers, communication base stations or mobile phones, household appliances or electronic toys.
With the rapid development of science and technology today, the rapid development of integrated circuit technology and electronic information products also drives the continuous progress of printed circuit board technology. Printed circuit boards gradually developed from single side to double-sided, multilayer and soft and hard boards. The arrival of the current 5G era is more leading the development direction of high precision, high performance and high stability circuit board technology of electronic products.