Patent ID: 8034212

Claim:
A magnetron plasma processing apparatus comprising: an airtight processing chamber for accommodating therein a substrate to be processed; a gas supply unit for supplying a processing gas into the processing chamber; a gas exhaust unit for exhausting an inside of the processing chamber and setting the inside of the processing chamber in a vacuum state, the gas exhaust unit having a gas exhaust port formed at a lower part of the processing chamber; an upper and a lower electrode facing each other while having therebetween a processing space formed above the gas exhaust port inside the processing chamber, the lower electrode serving as a mounting table for mounting thereon the substrate to be processed; an electric field forming unit for forming an electric field by applying an electric power between the upper and the lower electrode, the electric field exciting the processing gas in the processing space to convert same into a plasma; a baffle plate interposed between the processing space and the gas exhaust port such that the plasma is confined in the processing space, wherein the baffle plate has multiple through holes allowing the processing space and the gas exhaust port to communicate with each other; and a magnetic field forming unit for forming a magnetic field, wherein the magnetic field includes central magnetic force lines running parallel to a radial direction of the processing chamber and magnetic force lines, which pass through the baffle plate and are tilted with respect to the central magnetic force lines, wherein the through holes are substantially normal to the magnetic force lines passing through the baffle plate at a mounting position of the baffle plate.