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Classification of PCB circuit board

At present, the coating method of resist is divided into the following three methods according to the precision and output of circuit graphics: screen missing printing method, dry film / photosensitive method and liquid resist photosensitive method.

IC chip (integrated circuit) is an integrated circuit formed by putting a large number of microelectronic components (transistors, resistors, capacitors, diodes, etc.) on a plastic base to make a chip. At present, almost all chips can be called IC chips.

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

A chip refers to a silicon chip containing integrated circuits, which is small in size and is a part of a mobile phone, computer, or other electronic device. If the most important organ of the human body is the brain, then chips are the "brain" of electronic devices. A chip is an integrated circuit, also known as a microelectronic chip, composed of many electronic devices, circuit components, organic matter, etc., packaged on a single silicon chip, and is one of the foundations of modern electronic technology. Because of its small size, low power consumption, high manufacturing difficulty, and high reliability

The development history of electronic components is actually a condensed history of electronic development. Electronic technology is an emerging technology developed at the end of the 19th century and the beginning of the 20th century. It has developed most rapidly and widely used in the 20th century, and has become an important symbol of the development of modern science and technology.