PCB (Printed Circuit Board), the Chinese name is printed circuit board, also known as printed circuit board, is an important electronic component, is the support body of electronic components, is the carrier of electrical interconnection of electronic components. Because it is produced by electronic printing, it is called "printed" circuit board.

         Almost every electronic device, from electronic watches and calculators to large computers, communication electronics and military weapon systems, where there are electronic components such as integrated circuits, uses printed boards in order to make the electrical interconnection between the components. The printed circuit board is composed of an insulating base plate, connecting wires and a welding pad for assembling welded electronic components. It has the dual functions of conductive circuit and insulating base plate. It can replace the complex wiring, realize the electrical connection between the components in the circuit, not only simplifies the assembly of electronic products, welding work, reduce the traditional way of wiring workload, greatly reduce the labor intensity of workers; And reduce the volume of the machine, reduce the cost of products, improve the quality and reliability of electronic equipment. Printed circuit board has good product consistency, it can adopt standardized design, conducive to the realization of mechanization and automation in the production process. At the same time, the whole printed circuit board can be used as an independent spare part, which is convenient for the exchange and maintenance of the whole machine products. At present, printed circuit board has been widely used in the manufacture of electronic products.

         Jiangmen Xinji Circuit Co., Ltd. is a high-tech enterprise specializing in the production of high precision double-sided and multilayer circuit boards. The company has advanced production equipment: automatic copper-electrographic-etching production line, LDI line automatic line exposure machine, CNC drilling machines imported from Taiwan, text printing machine, etc. At the same time, we have many years of experience in PCB production management and technical personnel team. Products are widely used in communication equipment, computer, industrial control, power electronics, medical instruments, security electronics, consumer electronics and other high-tech fields, the production of PCB board sold to many regions at home and abroad.