Silicon wafers are fundamental to semiconductor manufacturing. The process begins with the purification of silicon, which is melted and formed into ingots. These ingots are sliced into wafers, providing the substrate for chip fabrication.
Doping modifies the electrical properties of the silicon wafer. Photolithography patterns the wafer, and etching and deposition processes build ... https://universitywafer.com/how-to-make-silicon-wafers-into-computer-chips.html