Patent ID: 8999122
Filing Date: 2015-04-07
Classification: C23C,H01J

Abstract:
1. An insulator interposed plasma processing apparatus including a plasma generating portion the generates plasma from a target surface by a vacuum arc discharge under a vacuum environment, a plasma transport tube that transports said plasma generated by said plasma generating portion, a plasma processing portion that processes an object to be treated by said plasma supplied from said plasma transport tube, and said insulator interposed plasma processing apparatus characterized in that a starting end side insulator is interposed between said plasma generating portion and said plasma transport tube, a finishing end side insulator is interposed between said plasma transport tube and said plasma processing portion, said plasma generating portion, said plasma transport tube, and said plasma processing portion are mutually separated electrically so that an electric influence from said plasma generating portion and said plasma processing portion on said plasma transport tube is blocked, a deflection magnetic field generating means for deflecting a magnetic field for plasma transportation is attached in said plasma transport tube, said deflection magnetic field generating means consists of a deflection magnetic field generating coil and a movable yoke in a form that said deflection magnetic field generating coil is wound around said movable yoke, said deflection magnetic field generating means includes an adjustment mechanism, in which said movable yoke is adjusted by sliding along a tube axis, rotating along a circumferential direction and swinging toward said tube axis direction, a rotating adjustment mechanism comprising said deflection magnetic field generating means is installed with a guiding body, said guiding body positioned around an outer circumference of said plasma transport tube, arc-like guiding grooves are installed in four places of said guiding body, pins set up at said movable yoke are inserted into said guiding groove and said movable yoke can be rotationally adjusted by sliding said pins in said circumferential direction, an adjustment mechanism which slides along said tube axis direction comprises that a pin set up on said guiding body is inserted into a slide groove formed on a slide member along said tube axis direction of said plasma transport tube, and said deflection magnetic field generating means is adjusted by sliding said pin along said slide groove of said slide member, an adjustment mechanism which swings toward said tube axis direction by rotating said guiding body around said pin, said plasma transport tube is divided into a plurality of small transport tubes, said small transport tubes are electrically separated from one another by interposing an intermediate insulator between neighboring said small transport tubes, an electric influence on an arbitrary said small transport tube from other said small transport tubes is blocked, and said small transport tube near said plasma generating portion is set to a negative electric potential, and an electric potential higher than said negative electric potential is set in said small transport tube near said plasma processing portion.