Silicon wafer Silicon wafer ▶ Characteristic: - Large energy band gap(1.2eV) - Raw material for device process - No defect and scratch on surface - Extream flatness - Electronic conductivity between insulator and conductor by dopant ▶ Application: - System-in-a-Package and MEMS - DRAM, ASIC, Transistor, CMOS, ROM, EP-ROM ▶ Specification Diameter 2” 3” 4” ..