Patent ID: 8084080

Claim:
A plasma processing method comprising the steps of: providing a first and a second electrodes so as to be relatively movable in parallel; disposing an object to be processed on the second electrode so as to face the first electrode; providing a blocking member to both end portions of the second electrode in parallel in a relative moving direction of the first and second electrodes, so that a plasma processing space formed between the first electrode and the object to be processed is blocked by the blocking member when the first and second electrodes are moved relatively in parallel with each other; applying voltage to both the first and the second electrodes and introducing a process gas into the plasma processing space formed between the first and second electrodes while both the first and second electrodes are relatively moved in parallel with each other; and radiating the plasma generated at a portion between the first and second electrodes to the object to be processed, wherein the blocking member is provided so as to extend from the second electrode to the first electrode so that an upper surface of the blocking member is raised higher than a surface level of the object disposed on the second electrode and further wherein the blocking member is configured as a guide rail having a top portion fitted to a concave groove formed at a portion close to the first electrode.