APPARATUS AND METHOD FOR MANUFACTURING PHOTOELECTRIC CONVERSION ELEMENTS, AND PHOTOELECTRIC CONVERSION ELEMENT

摘要

Provided are an apparatus and a method for manufacturing photoelectric conversion elements, and a photoelectric conversion element, the apparatus and method being capable of highly efficiently forming a film at a high speed with microwave plasma, preventing oxygen from mixing, and reducing the number of defects. The invention provides a photoelectric conversion element manufacturing apparatus 100 that forms a semiconductor layer film on a substrate W by microwave plasma CVD. The apparatus 100 includes a chamber 10, the chamber 10 being an enclosed space containing a base, a substrate W of a subject for thin-film formation being mounted on the base, a first gas supply unit 40 that supplies a plasma excitation region in the chamber 10 with plasma excitation gas, a pressure regulation unit 70 that regulates the pressure in the chamber 10, a second gas supply unit 50 that supplies a plasma diffusion region in the chamber 10 with raw gas, a microwave application unit 20 that applies microwaves into the chamber 10, and a bias voltage application unit 60 that selects and applies a substrate bias voltage to the substrate W in accordance with the type of gas.