Integrated circuit has the advantages of small size, light weight, less lead line and welding points, long life, high reliability, good performance, and low cost, easy to large-scale production. It is not only widely used in industrial and civilian electronic equipment such as radio recorders, television sets, computers, etc., but also widely used in military, communications, remote control and other aspects. The integrated circuit is used to assemble electronic devices, and its assembly density can be increased by dozens to thousands of times compared with the transistor, and the stable working time of the device can also be greatly improved.