What is the process for manufacturing semiconductors?
The manufacturing process requires the following steps: • Producing silicon wafers from very pure silicon ingots (boules) • Slicing the boules into wafers and polishing • Using multiple oxidation, photoresist etching doping steps to fabricate bipolar integrated circuits (ICs) onto the wafers (front-end processing) • Metal Oxide Semiconductor (MOS) devices only use one doping step, i.e.