sand - Czochralski method type1/2 -> single crystal ingot ->slicing to obtain wafers -> photolitho -> testing -> profit

Silicon Purification & Ingot Growth: Silica sand is purified and melted to grow a large single-crystal silicon ingot using the Czochralski process. Wafer Production: The ingot is sliced into thin, highly polished wafers. Deposition: Thin films of insulating, conducting, or semiconducting materials are deposited onto the wafer. Photolithography: The wafer is coated with a photoresist, exposed to ultraviolet light through a mask containing the circuit design, and developed to create the pattern. Etching: Unwanted materials are removed to create the transistor structures. Doping (Ion Implantation): Impurities are added to the silicon to alter its conductivity, creating the transistor switches. Interconnect & Packaging: Copper or aluminum layers are added to connect the transistors. Finally, the wafer is cut into individual chips and packaged.