PCB (Printed Circuit Board), the Chinese name is printed circuit board, printed circuit board for short, is one of the important parts of the electronics industry.

Almost every kind of electronic equipment, from electronic watches, calculators, to computers, communication electronic equipment, and weapon systems, as long as there are electronic components such as integrated circuits, they must be printed for electrical interconnection.制板。 System board.

　　In the research process of larger electronic products, the basic success factors are the design, documentation and manufacturing of the product's printed board. The design and manufacturing quality of printed boards directly affects the quality and cost of the entire product, and even leads to the success or failure of commercial competition.

　　The role of PCB

After electronic equipment adopts printed boards, due to the consistency of similar printed boards, manual wiring errors can be avoided, and electronic components can be automatically inserted or mounted, automatic soldering, and automatic detection, ensuring the quality of electronic equipment , Improve labor productivity, reduce costs, and facilitate maintenance.

　　PCB development

　　 printed boards have developed from single-layer to double-sided, multilayer and flexible, and still maintain their respective development trends. Due to the continuous development of high precision, high density and high reliability, continuous reduction in size, cost reduction, and performance improvement, the printed circuit board will still maintain a strong vitality in the future development of electronic equipment.

The domestic and foreign discussions on the future development trends of printed board manufacturing technology are basically the same, that is, to high density, high precision, fine aperture, fine wire, fine pitch, high reliability, multilayer, high-speed transmission, light weight, The development of thin type, in the production, at the same time, to increase productivity, reduce costs, reduce pollution, and adapt to the development of multi-variety, small-batch production. The technical development level of the printed circuit is generally represented by the line width, aperture, and plate thickness/aperture ratio on the printed board.

　　In recent years, the consumer electronics market, led by mobile electronic devices such as smart phones and tablet computers, has grown rapidly, and the trend toward miniaturization and thinning of devices has become more obvious.