The last section you need to know about before embarking on manufacturing of semiconductors is to know about silicon wafers. A wafer is a thin slice of semiconducting material made up of silicon, whereby microcircuits can be constructed. A thin, round slice of silicon, is processed into large cylindrical ingots, or groups of wafers, then sliced into ultra-thin wafers and finally implanted with transistors before being cut into smaller semiconductor chips. This process is the heart of the semiconducting fabrication processing method. Without using silicon, the whole semiconductor manufacturing process would not even happen.