what is pcb
PCB, all called printed circuit board, is an important electronic component, which is the support of electronic components and the carrier of electrical connection of electronic components.Because it is made by electronic printing, it is called “printed” circuit board.
After the electronic equipment adopts printing plate, due to the consistency of the same kind of printing plate, the error of manual wiring is avoided, and the electronic components can be automatically inserted or pasted, automatically soldered tin, and automatically detected, which ensures the quality of electronic equipment, improves labor productivity, reduces costs, and facilitates maintenance.
Printing plate developed from single layer to double layer, multilayer and flexible, and still maintained their own development trend.Due to the continuous development of high precision, high density and high reliability, and the continuous reduction of volume, cost reduction and performance improvement, the printing plate will still maintain a strong vitality in the development of electronic equipment in the future.
Were reviewed at home and abroad in the future technology development trend of PCB manufacturing is basically consistent, namely to high density, high precision, small aperture, thin wire, small spacing, high reliability, multiple stratification, high-speed transmission, light weight, thin, on the production at the same time to improve productivity, reduce costs, reduce pollution, to adapt to many varieties, small batch production.The technical development level of printed circuit is generally represented by line width, aperture, thickness/aperture ratio of printed circuit board.
The PCB was created by Austrian Paul Eisler, who first used the PCB in radios in 1936.In 1943, most americans applied the technology to military radios. In 1948, the United States officially recognized the invention for commercial use.Printed circuit boards have been widely used since the mid 1950s.what is pcb
Before the advent of PCB, the interconnection between electronic components was completed by direct connection of wires.Today, wires are used only in laboratory experiments.The printed circuit board has definitely occupied the position of absolute control in the electronic industry.what is pcb
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