The inventor of the printed circuit board was the Austrian Paul Eisler, who in 1936 used the printed circuit board in a radio device. In 1943, Americans used the technology extensively in military radios. In 1948, the United States officially recognized the invention for commercial use. Printed circuit board technology has only been widely adopted since the mid-1950s.

Before the advent of printed circuit boards, the interconnection between electronic components was achieved by direct connection of wires. Now, the breadboard exists only as an effective experimental tool; the printed circuit board has occupied a position of absolute dominance in the electronics industry.

When the electronic equipment adopts the printed board, due to the consistency of the same type of printed board, the error of manual wiring is avoided, and the automatic insertion or mounting of electronic components, automatic soldering, and automatic detection can be realized, which ensures the safety of the electronic equipment. quality, improve labor productivity, reduce costs, and facilitate maintenance.

The role of the printed circuit board diagram:

A printed circuit board diagram is a diagram dedicated to component assembly and machine repair services, and it is essentially different from various circuit diagrams.

1. The main functions of the printed circuit board diagram are as follows:

(1) The specific location of a component in the electrical schematic diagram can be easily found on the actual circuit board through the printed circuit board diagram, and it is inconvenient to search without a printed circuit board diagram.

(2) The printed circuit board diagram plays the role of communication between the electrical schematic diagram and the actual circuit board. It is one of the indispensable drawings and materials to facilitate repairs. The absence of a printed circuit board diagram will affect the repair speed and even hinder the normal maintenance ideas. successful development.

(3) The printed circuit board diagram shows the distribution and specific position of each component on the circuit board in the electrical schematic diagram, and gives the direction of the connection (copper foil line) between the pins of each component.

(4) The printed circuit board diagram is a very important repair material, and the conditions on the circuit board are drawn one-to-one on the printed circuit board diagram.

2.Advantage

The main advantages of using printed boards are:

(1) Due to the repeatability (reproducibility) and consistency of the graphics, wiring and assembly errors are reduced, and equipment maintenance, debugging and inspection time are saved;

(2) The design can be standardized, which is convenient for interchange;

(3) High wiring density, small size and light weight, which is conducive to the miniaturization of electronic equipment;

(4) Conducive to mechanized and automated production, improve labor productivity and reduce the cost of electronic equipment;

The manufacturing methods of printed boards can be divided into two categories: subtractive method (subtractive method) and additive method (additive method). At present, large-scale industrial production is still dominated by the method of etching copper foil in the subtraction method;

(4) In particular, the bending resistance and precision of FPC flexible board can be better applied to high-precision instruments. (Such as cameras, mobile phones, camcorders, etc.)

NextPCB Electronics is a professional supplier in China If you want to purchase printed circuit boards.

NextPCB Electronics, established in 2011, is a leading one-stop service platform for the electronics industry in China and a national high-tech enterprise. With the business philosophy of "customer-centric, pursuit of the ultimate experience", it has laid out electronic industry services such as electronic enthusiasts network, solution design, component e-commerce, PCB manufacturing, SMT manufacturing and PCBA manufacturing, and has provided 300,000+ customers around the world. High quality, short delivery time, cost-effective one-stop servic.

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