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A printed circuit board (PCB) is used to carry electronic components and provide a master circuit for connecting the components to the circuit. From the structural point of view, PCB is divided into single panel, double panel and multilayer board. But most people can't tell the difference, so what are the three differences?

What should be paid attention to in the anti-corrosion treatment of multilayer circuit boards

Electronic products should use PCB. PCB (printed circuit board) is used in almost all electronic products and is considered as the "mother of electronic system products".

Semiconductors have a wide range of applications, almost permeating every aspect of our lives. It is widely used in fields such as electronic products, communication equipment, computers, medical equipment, etc. According to different application fields, semiconductors can be divided into six major sub sectors:

On April 24, Han's Laser released its 2016 annual report and a quarterly report for 2017. During the reporting period, it achieved operating income of 6.959 billion yuan, a year-on-year increase of 24.55%, and realized net profit of 754 million yuan. In 17Q1, profit increased by 31.50%, and the profit growth rate in the first half of the year is expected to be 60%-90%.

A semiconductor is a substance with a conductivity between that of a conductor and an insulator. It is not very conductive in a pure state, but its conductivity can be adjusted by adding impurities (doping) or changing the temperature. The typical representative of semiconductors is silicon, which is widely used in the manufacturing of electronic components. Semiconductor technology is the cornerstone of modern electronic devices, such as smartphones, computers, digital cameras, etc., all rely on semiconductor chips. In addition, semiconductors are also very important in the energy field, such as semiconductor materials, which are the core of solar cells