Patent ID: 8136480

Claim:
A physical vapor deposition system comprising: an evaporation chamber comprising an evaporation source and a plasma torch inside the evaporation chamber, using plasma generated by said plasma torch under a predetermined gas atmosphere or the ambient air atmosphere to heat and evaporate said evaporation source, and generating microparticles from the evaporated atoms and a film formation chamber provided with a supersonic nozzle inside the film formation chamber, the supersonic nozzle being connected to a transfer pipe acting as a route for conveying a gas including said microparticles from said evaporation chamber and a substrate for film formation, making said microparticles transferred from said evaporation chamber ride on a supersonic gas flow created by said supersonic nozzle, and making said microparticles deposit on said substrate for film formation by physical vapor deposition, said plasma torch having a cylindrical conductive anode, a polymer-based or non-polymer-based insulation pipe inserted inside said anode and generating less outgas than that by phenol resin, a rod shaped cathode inserted inside said insulation pipe so as not to contact said anode, and a holding pipe arranged at an outer circumference of said anode, said holding pipe having a first holding member electrically connected to said cathode and mechanically holding said cathode, a second holding member electrically connected to said anode and mechanically holding said cathode, and a third holding member for mechanically holding said anode and said cathode via said first holding member and said second holding member, at least said first holding member and second holding member and said second holding member and third holding member being joined by welding to an insulation member of ceramic, said first holding member, said second holding member, and said third holding member being integrally formed while insulated from each other, a ultra high vacuum joint or international conflat flange, or both, said ultra high vacuum joint, international conflat flange, or both, being used as a vacuum seal of said anode, said cathode, and said holding pipe, and a negative voltage being applied to said cathode and a positive voltage being applied to said anode or said evaporation source, or both, to thereby to form plasma.