The PECVD deposition system is relatively simple and consists of five main parts (see Figure 5.9):
• A stainless steel high vacuum reaction chamber with capacitatively coupled parallel electrodes, rf power feedthrough, substrate holder and substrate heating assembly.
• A gas handling system containing mass flow controllers and several gas valves to handle gas flows required for the deposition of the intrinsic and doped layers and pressure in the chamber.
• A pumping system that usually consists of a turbomolecular pump and a mechanical rotary pump, which can handle reactive gasses.