PCB (Printed Circuit Board), Chinese name is printed circuit board, referred to as printed board, is one of the important parts of the electronics industry. Almost every kind of electronic equipment, electronic watches, calculators, to computers, communication electronic equipment, military weapon systems, as long as there are electronic components such as integrated circuits, for the electrical interconnection between them, printed boards are used. . In the research of larger electronic products, the most basic success factor is the design, documentation, manufacturing of the printed board of the product. The design manufacturing quality of printed boards directly affect the quality cost of the entire product, even lead to the success failure of commercial competition.

effect

After the electronic equipment adopts printed boards, due to the consistency of similar printed boards, errors in manual wiring can be avoided, automatic insertion placement of electronic components, automatic soldering, automatic detection can be achieved to ensure the quality of electronic equipment. , Improve labor productivity, reduce costs, facilitate maintenance.

development of

Printed boards have evolved single-layer to double-sided, multi-layer, flexible, still maintain their respective development trends. Due to the continuous development of high precision, high density high reliability, continuous reduction in size, cost, performance, printed boards still maintain a strong vitality in the future development of electronic equipment.

Summarizing the domestic foreign discussions on the development trends of future printed board manufacturing technology are basically the same, that is, high density, high precision, fine aperture, fine wire, fine pitch, high reliability, multilayer, high speed transmission, light weight, The development of the thin type is to increase productivity, reduce costs, reduce pollution, adapt to the development of multiple varieties small batches. The level of technological development of printed circuits is generally represented by the line width, aperture, plate thickness / aperture ratio of the printed circuit board.

source

The creator of the printed circuit board was the Austrian Paul Eisler. In 1936, he first used printed circuit boards in the radio. In 1943, Americans mostly applied this technology to military radios. In 1948, the United States officially recognized that the invention could be used for commercial purposes. Printed circuit boards have only been widely used since the mid-1950s.

Before the advent of PCBs, the interconnections between electronic components were completed by direct connection of wires. Today, circuit boards exist only for experimental applications in the laboratory; printed circuit boards have certainly occupied a certain control position in the electronics industry. Double-sided multilayer circuit board

Relevant webpage materials related resources on this site are sourced the Internet. If there is any infringement, please inform us quickly. We will delete it within 24 hours!