Patent ID: 6159763
Filing Date: 2000-12-12
Classification: C23C,H01L,Y02E,Y02P

Abstract:
A method of forming a non-single crystal semiconductor thin film comprising the steps of introducing material gas into a discharge space of a reaction container while moving a belt-like member, applying a high-frequency power, decomposing said material gas by plasma discharge and forming an i-type semiconductor layer on said belt-like member, whereinsaid i-type semiconductor layer is formed by repeating once or more times a process of depositing an i-type semiconductor film having a specified film thickness, then applying a H.sub.2 plasma process onto a surface of said i-type semiconductor film, andsaid H.sub.2 plasma process is applied under the conditions that the surface area of a cathode electrode in a plasma discharge space is larger than the sum of surface areas of said belt-like member and an anode electrode in said plasma discharge space, and a potential of said cathode electrode at the time of excitation of glow discharge provides a positive potential of +5V or more relative to said belt-like member and said anode electrode.