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Photoelectric boards refer to PCBs used for LCD and other purposes, and have very strict requirements on size.

Components: products that do not change the molecular composition of raw materials during processing can be called components.

Why does the resistivity of semiconductor go down with temperature？Between the conductor and semiconductor resistivity difference is due to the different density of charge carriers.

Integrated circuits (ICs), also known as microchips or simply chips, are fundamental components of modern electronics.

Designing a PCB (Printed Circuit Board) for high-frequency applications requires careful consideration of various factors to ensure signal integrity, minimize losses, and mitigate electromagnetic interference. Here are some key steps and considerations:

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.