Integrated Circuit, Integrated Circuit, abbreviated as IC; As the name implies, it is a circuit with specific functions that integrates a certain number of commonly used electronic components, such as resistors, capacitors, transistors, and the wiring between these components through semiconductor process.
Integrated circuit has the advantages of small size, light weight, less lead and welding points, long life, high reliability, good performance, and so on. At the same time, it has low cost and is convenient for mass production. It is not only widely used in industrial and civil electronic equipment such as recorders, TV sets, computers, but also in military, communication, remote control and other aspects. With integrated circuit to assemble electronic equipment, its assembly density than transistors can be raised tens of times to thousands of times, the stable working time of equipment can also be greatly improved.
Before the inspection and repair of integrated circuit, we must be familiar with the function of the integrated circuit, the internal circuit, the main electrical parameters, the role of the pins and the normal voltage of the pins, the waveform and the working principle of the circuit composed of peripheral components.