Patent ID: 6670766
Filing Date: 2003-12-30
Classification: H01J

Abstract:
A plasma treatment apparatus for treating an object with plasma comprising:a tubular vessel made of an electrically-insulating material and having a laterally elongated cross section, which has a gas inlet at its one end and a plasma outlet at the other end; a pair of electrodes, which are arranged such that electric flux lines develop substantially in an axial direction of said tubular vessel when one of an AC voltage and a pulse voltage is applied between said electrodes; a gas supply for supplying a streamer generation gas into said tubular vessel though said gas inlet; a power source for applying said one of the AC voltage and the pulse voltage between said electrodes to generate plural streamers of said gas in said tubular vessel; and a plasma uniform means for making the plural streamers uniform in a lateral direction of the laterally elongated cross section of said tubular vessel to provide said plasma from said plasma outlet.