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Purpose of PCB

2021-12-14

Purpose of PCB

In depth analysis of the development of electronic industry

The creator of PCB is Austrian Paul Eisler. In 1936, he first adopted PCB in radio. In 1943, Americans mostly applied this technology to military radio. In 1948, the United States officially recognized that this invention can be used for commercial purposes. PCB has not been widely used since the mid-1950s.
PCB is one of the important components of the electronic industry. Almost every kind of electronic equipment, 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, PCB should be used for the electrical interconnection between them. In the process of large-scale electronic product research, the most basic success factor is the PCB design, documentation and manufacturing of the product. The design and manufacturing quality of PCB directly affects the quality and cost of the whole product, and even leads to the success or failure of commercial competition.
After the electronic equipment adopts printed boards, due to the consistency of similar printed boards, the error of manual wiring is avoided, and the automatic insertion or installation, automatic soldering and automatic detection of electronic components can be realized, which ensures the quality of electronic equipment, improves labor productivity, reduces cost and is convenient for maintenance. PCB has developed from single-layer to double-sided, multi-layer and flexible, and still maintains their own development trend. Due to the continuous development in the direction of high precision, high density and high reliability, reducing the volume, reducing the cost and improving the performance, the printed board still maintains strong vitality in the development project of electronic equipment in the future.
The global discussion on the development trend of PCB production and manufacturing technology in the future is basically the same, that is, to develop in the direction of high density, high precision, fine aperture, fine wire, fine spacing, high reliability, multi-layer, high-speed transmission, light weight and thin, and to improve productivity, reduce cost, reduce pollution and adapt to multi variety and small batch production. The technological development level of printed circuit is generally represented by the line width, aperture and plate thickness / aperture ratio on the printed board
Before the emergence of PCB, the interconnection between electronic components was completed by direct connection of wires. Nowadays, circuit boards exist only for experimental application in the laboratory; Printed circuit board has certainly occupied an absolute control position in the electronic industry