Patent ID: 7780790

Claim:
A vacuum processing apparatus comprising: a conductive partition which is positioned inside a vacuum processing vessel, partitions an internal space of the vacuum processing vessel into a plasma generating space and a substrate processing space, and has a plurality of through holes for communicating with the plasma generating space and the substrate processing space; a high-frequency electrode which is positioned in the plasma generating space, and is positioned so as to be opposite to said conductive partition; a gas reservoir is configured by a first insulating member which is positioned in a side of the substrate processing space and has a recessed sectional shape formed along a circumference portion of said conductive partition, and a second insulating member which is positioned along a circumference portion of said high-frequency electrode in a side of the plasma generating space and is arranged so as to be opposite to the first insulating member; and a gas supply system is connected to said gas reservoir in order to supply a gas to said gas reservoir, wherein said gas reservoir has a gap for spraying the gas supplied from said gas supply system to said gas reservoir to the plasma generating space between the second insulating member and an upper surface of the circumference portion of said conductive partition.