After using printed boards in electronic devices, due to the consistency of similar printed boards, errors in manual wiring are avoided, and electronic components can be automatically inserted or pasted, soldered, and inspected, ensuring the quality of electronic devices, improving labor productivity, reducing costs, and facilitating maintenance.

　　Development:

　　Printed circuit boards have evolved from single-layer to double-sided, multi-layer, and flexible, and still maintain their respective development trends. Due to the continuous development towards high precision, high density, and high reliability, as well as the reduction of volume, cost, and performance, printed circuit boards still maintain strong vitality in the future development of electronic equipment engineering.

　　The discussion on the development trend of future printed circuit board production and manufacturing technology at home and abroad is basically consistent, which is to develop towards high-density, high-precision, fine aperture, fine wire, fine spacing, high reliability, multi-layer, high-speed transmission, lightweight, and thinness. At the same time, in production, it is to improve productivity, reduce costs, reduce pollution, and adapt to the direction of multi variety and small batch production. The technological development level of printed circuits is generally represented by the line width, aperture, and board thickness/aperture ratio on printed boards

　　source

　　The creator of printed circuit boards was Austrian Paul Eisler, who first used printed circuit boards in radios in 1936. In 1943, many Americans applied this technology to military radios, and in 1948, the United States officially recognized this invention for commercial use. Printed circuit boards have only been widely used since the mid-1950s.

　　Before the emergence of PCBs, the interconnection between electronic components was achieved through direct wire connections. Nowadays, circuit boards only exist for experimental applications in the laboratory; Printed circuit boards have definitely occupied a controlling position in the electronics industry.