Integrated circuit is a kind of micro electronic device or component. By using a certain technology, transistors, resistors, capacitors, inductors and other components needed in a circuit are interconnected together with wiring, which are made on a small piece or several pieces of semiconductor chips or dielectric substrates, and then packaged in a shell to form a micro structure with the required circuit function; all components in the structure have formed a whole, making the electronic components toward the tiny Great strides have been made in modeling, low power consumption, intelligence and high reliability.