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

There are many forms of matter, such as solid, liquid, gas, plasma and so on. We usually call materials with poor conductivity, such as coal, artificial crystal, amber, ceramics and so on, insulators. Metals with good conductivity, such as gold, silver, copper, iron, tin and aluminum, are called conductors. The material between conductor and insulator can be simply called semiconductor. Compared with conductors and insulators, the discovery of semiconductor materials is the latest. Until the 1930s, when the purification technology of materials was improved, the existence of semiconductors was really recognized by the academic community.

China business information network news: semiconductor is a kind of material with conductivity between conductor and insulator at normal temperature. It is also a material with controllable conductivity, ranging from insulator to conductor.

At present, the dividend ceiling of smart phones is gradually emerging, especially the competition in the Chinese market is particularly fierce. In January, Huawei's sales were 4.72 million units, a slight decrease of 0.4%, and sales were 10.89 billion yuan, a decrease of 1.5%.

FPC soft board reinforced board processing, FPC soft board reinforced board is unique to flexible circuit board, and its shape and materials are also diverse

Printed circuit board (PCB), also known as printed circuit board, is the supplier of electrical connection of electronic components. Its development has a history of more than 100 years. Its design is mainly layout design. The main advantage of using circuit board is that it greatly reduces the wiring and assembly errors, and improves the automation level and production labor rate. According to the number of circuit board layers, it can be divided into single board, double board, four board, six board and other multilayer circuit boards.