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Printed circuit board (PCB), also known as printed circuit board, is the supplier of electrical connection of electronic components. Its development has a history of more than 100 years. Its design is mainly layout design. The main advantage of using circuit board is that it greatly reduces the wiring and assembly errors, and improves the automation level and production labor rate. According to the number of circuit board layers, it can be divided into single board, double board, four board, six board and other multilayer circuit boards.

What should be paid attention to in the anti-corrosion treatment of multilayer circuit boards

At present, there are two general FPC welding processes, one is tin press welding, and the other is manual drag welding

To get the best performance from electronic circuits, the layout of components and the layout of wires are important.

A semiconductor is a substance with a conductivity between that of a conductor and an insulator. It is not very conductive in a pure state, but its conductivity can be adjusted by adding impurities (doping) or changing the temperature. The typical representative of semiconductors is silicon, which is widely used in the manufacturing of electronic components. Semiconductor technology is the cornerstone of modern electronic devices, such as smartphones, computers, digital cameras, etc., all rely on semiconductor chips. In addition, semiconductors are also very important in the energy field, such as semiconductor materials, which are the core of solar cells

Multilayer boards were invented in 1961. Its production method is generally to make the inner layer graphics first, and then use the printing and etching method to make a single-sided or double-sided substrate, and incorporate it into the designated interlayer, and then heat, press and bond it. As for the subsequent drilling, It is the same as the plated through-hole method of the double-sided board.