Astech (Alloy Steel Technologies Inc.) is a sand-casting foundry that produces castings in steel, stainless steel, alloy steel, and gray iron. The company’s specialties include the production of steel ...
Major processes in semiconductor wafer fabrication: 1) wafer preparation, 2) pattern transfer, 3) doping, 4) deposition, 5) etching, and 6) packaging. The process of creating semiconductors can be ...