Do you have a deep understanding of PCB?

PCB (printed circuit board) is a printed circuit board, referred to as a printed board, and is one of the important components of the electronics industry. Almost every kind of electronic equipment, ranging from electronic watches and calculators to computers, communication electronic equipment, and military weapon systems, as long as there are electronic components such as integrated circuits, in order to make the electrical interconnection between various components, printed circuit boards must be used. plate. The printed circuit board is composed of an insulating base plate, connecting wires and pads for assembling and welding electronic components, and has the dual functions of a conductive line and an insulating base plate. It can replace complex wiring and realize the electrical connection between components in the circuit, which not only simplifies the assembly and welding of electronic products, reduces the workload of wiring in traditional methods, and greatly reduces the labor intensity of workers; it also reduces the size of the whole machine. Volume, reduce product cost, improve the quality and reliability of electronic equipment. The printed circuit board has good product consistency, and it can adopt a standardized design, which is conducive to the realization of mechanization and automation in the production process. At the same time, the entire printed circuit board that has been assembled and debugged can be used as an independent spare part, which is convenient for the exchange and maintenance of the whole machine. At present, printed circuit boards have been widely used in the production and manufacture of electronic products. 


The earliest printed circuit boards were paper-based copper-clad printed boards. Since the advent of semiconductor transistors in the 1950s, the demand for printed boards has risen dramatically. Especially with the rapid development and wide application of integrated circuits, the volume of electronic equipment is getting smaller and smaller, and the density and difficulty of circuit wiring are getting higher and higher, which requires continuous updating of printed boards. At present, the variety of printed boards has developed from single-sided boards to double-sided boards, multi-layer boards and flexible boards; the structure and quality have also developed to ultra-high density, miniaturization and high reliability; new design methods, design supplies and Board-making materials and board-making processes continue to emerge. In recent years, various computer-aided design (CAD) printed circuit board application software has been popularized and promoted in the industry. In specialized printed circuit board manufacturers, mechanized and automated production has completely replaced manual operations.

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