Patent ID: 7109660

Claim:
A plasma processing device comprising: a processing container; a separating unit for dividing an inside of the processing container into a processing region and an exhaust region, wherein a processing gas is introduced into the processing region and an object to be processed is processed therein, and wherein the processing gas supplied is exhausted to the exhaust region; and a discharging unit for discharging in the processing region to produce a plasma formed of charged particles and neutral gas particles by ionizing the processing gas supplied, wherein the separating unit includes; an opening through which the neutral gas particles pass; a non-conductive portion in a processing region facing surface, which faces the processing region; and a conductive portion in a gas flow facing surface, which faces a flow of the processing gas exhausted to the exhaust region from the processing region, and wherein the separating unit separates an average moving direction of the neutral gas particles from those of the charged particles in the vicinity of the separating unit.