An integrated circuit is a tiny electronic device or component. Using a certain process, the transistors, resistors, capacitors and inductors required in a circuit and wiring are interconnected together, made on a small or several small pieces of semiconductor chips or dielectric substrates, and then packaged in a tube shell to become a miniature structure with the required circuit functions; All components have been structurally formed as a whole, making electronic components a big step forward in terms of miniaturization, low power consumption, intelligence and high reliability. It is represented in the circuit by the letter "IC". The integrated circuit was invented by Jack Kilby (Ge based integrated circuit) and Robert Noyce (Si based integrated circuit). The majority of applications in today's semiconductor industry are silicon-based integrated circuits.