A PCB, or printed circuit board, is a critical component in the electronic industry today. It primarily uses an insulating board as the base material, cut to the appropriate size, with a conductive pattern attached (including holes for components, fastening, metallization, etc.) to serve as a replacement for the previously utilized chassis in electronic devices. This allows for the interconnection between electronic components. The board is created using electronic printing technology, which is why it is also known as a “printed” circuit board.
Almost all electronic equipment, from electronic watches, calculators, to computers, communication electronic equipment, military weapon systems, as long as there are electronic components such as integrated circuits, as long as the parts that need electrical interconnection, all need to use PCB lines. In the process of relatively large-scale electronic product research, the most basic success factor is the design, documentation, and manufacturing of the product. The design and manufacturing quality of PCB also directly affects the quality and cost of the entire product, and even leads to the success or failure of commercial competition.
First: Function of PCB
After electronic equipment uses PCB, due to the consistency of similar PCB, manual wiring errors can be effectively avoided, and electronic components can be automatically inserted or mounted, automatic soldering, and automatic detection, ensuring the quality of electronic equipment. This improves labor productivity, reduces costs, and is also conducive to later maintenance.
Second: Source of PCB
The creator of the PCB is the Austrian Paul Eisler, who first used the PCB circuit board in a radio in 1936. In 1943, Americans mostly used this technology for military radios. In 1948, the United States officially approved this invention for commercial use. Since the mid-1950s, PCBs have only begun to be widely used.
Before the advent of PCB boards, the interconnection between electronic components was done directly by wires. Nowadays, wires are only used for experimental applications in the laboratory. PCB circuit boards have definitely occupied a position of absolute control in the electronics industry.
Third: Development of PCB
PCB boards have developed from single-sided to double-sided, multi-sided, and flexible, and still maintain their own development trends. Due to the continuous development of high precision, high density, and high reliability, continuous reduction in size, cost reduction, and performance improvement, PCB boards still maintain a strong vitality in the development of electronic equipment in the future.
Summarizing the domestic and foreign discussions on the development trends of PCB production and manufacturing technology in the future are basically the same. That is, towards high density, high precision, fine aperture, fine wire, fine pitch, high reliability, multilayer, high-speed transmission, light weight, and thin type. In production, at the same time, increasing productivity, reducing costs, reducing pollution, and adapting to the development of multi-variety, small-batch production. The technical development level of printed circuit boards is generally represented by the line width, aperture, and board thickness/aperture ratio on the PCB circuit board.
