Integrated circuits (ICs) are microscopic arrays of electronic components integrated onto a single chip of semiconductor material. There are several types of ICs based on their structure and fabrication method. Thick and thin film ICs are formed on an insulating substrate using screen printing or vacuum deposition techniques and can contain resistors, capacitors, and inductors but not transistors or diodes. Monolithic ICs integrate all components onto a single silicon wafer using photolithography to diffusively dope regions of the wafer with impurities. Hybrid ICs combine monolithic and thick/thin film fabrication by first forming transistors on a silicon wafer, covering it with an insulating layer, and then adding passive film components and interconnecting them to the underlying