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IC refers to integrated circuits. In semiconductor, semiconductor is the most suitable material to realize transistor, and transistor is the core device of most circuits. But I want to write more here, starting from the beginning of "circuit". In physics class, everyone heard that Maxwell's equation predicted the existence of electromagnetic wave, and then Hertz's experiment proved the existence of electromagnetic wave. Finally, Marconi realized radio communication

In the 1980s, China began to enter the semiconductor industry. In the early days, semiconductor technology mainly relied on imports, while China mainly engaged in simple assembly and testing work. At that time, major enterprises such as Shanghai Hongli and East China Semiconductor had a significant gap between their product technology level and the international advanced level, but it laid the foundation for the Chinese semiconductor industry

PCB (Printed Circuit Board) is an industry with a relatively low technical threshold. However, 5G communication has the characteristics of high frequency and high speed. Therefore, 5G PCB requires higher technology and the industry threshold is raised; at the same time, the output value is also pulled up.

When designing a circuit, factors such as thermal stress are very important, and engineers should eliminate thermal stress as much as possible. Over time, PCB manufacturing processes have continued to evolve, and various PCB technologies have been invented, such as aluminum PCBs, which can handle thermal stress. It is in the interests of heavy copper PCB designers to minimize the power budget while maintaining the circuit. Performance and environmentally friendly design with heat dissipation performance.

The covering film of FPC circuit board shall be processed by opening the window, but it cannot be processed immediately after being taken out from the cold storage. Especially when the ambient temperature is high and the temperature difference is large, water droplets will condense on the surface.

BCM89551B1BFBGT is a high-performance automotive Ethernet switch chip launched by Broadcom, which plays a key role in today's intelligent devices.