Patent ID: 6500500
Filing Date: 2002-12-31
Classification: C23C

Abstract:
A film-forming method comprises the steps of: arranging a substrate for film formation in a reaction chamber; evacuating said reaction chamber; introducing a film-forming raw material gas into said reaction chamber and, simultaneously with this, introducing a high frequency power into said reaction chamber through a high frequency power introduction means; thereby causing a glow discharge in said reaction chamber to form a deposited film on said substrate, whereinsaid high frequency power introduction means comprises at least a hollow electrode, having one or more gas ejection holes at its periphery, which introduces said high frequency power into said reaction chamber and an insulating member which covers said hollow electrode with a clearance between said hollow electrode and said insulating member, said insulating member isolating a surface of said hollow electrode from said glow discharge in said reaction chamber; feeding cooling gas through one or more gas ejection holes against an inner face of said insulating member; forming said deposited film on said substrate while cooling said insulating member with said cooling gas.