An integrated circuit is a miniature electronic device or component. A specific process is used to interconnect the components and wiring of transistors, diodes, resistors, capacitors and inductors required in a circuit, to make one or more semiconductor chips or dielectric substrates, and then packaged in a package to achieve the desired circuit function. Microstructure of energy; Among them, all components have been integrated into a whole in structure, making the volume of the entire circuit greatly reduced, and the number of welding points of the lead line is also greatly reduced, making electronic components towards miniaturization, low power consumption, high reliability in the direction of development on a big step. The circuit is represented by the letter "IC" (there are also useful characters such as "N"). .