An integrated circuit is a circuit with specific functions that integrates a number of common electronic components, such as resistors, capacitors, transistors, etc., and the connections between these components through semiconductor technology. Through oxidation, lithography, diffusion, epitaxy, steam aluminum and other semiconductor manufacturing processes, the composition of a function of the circuit of those components are all integrated in a small piece of silicon, and then welded into a shell of electronic devices. Its packaging shell has round shell type, flat type or double row in - line type and other forms.
The integrated circuit has the advantages of small size, light weight, less leads and welding points, long life, high reliability, good performance, and low cost, which is convenient for large-scale production. It is not only widely used in industrial and civil electronic equipment such as radio recorder, television, computer, but also widely used in military, communication, remote control. Besides, integrated circuit technology, including chip manufacturing technology and design technology, mainly reflects in processing equipment, processing technology, packaging and testing, mass production and design innovation ability.