Patent ID: 7926445

Claim:
An oxidizing unit comprising: a processing container whose inside can be vacuumed, the processing container having a predetermined length and zones; a main supplying unit of an oxidative gas provided at one end of the processing container; a supplying unit of a reducing gas provided at the one end of the processing container; a sub supplying unit of the oxidative gas provided on a way in a longitudinal direction of the processing container for a zone; and a holding unit that supports a plurality of objects to be processed at a predetermined pitch, and that can be arranged in the processing container so that the arranged holding unit can be in more than one zone; and a control unit programmed to control the main supplying unit, the supplying unit and the sub supplying units in a manner to form in the processing container an atmosphere having active oxygen species and active hydroxyl species and adjusts an atmosphere in a zone by control of the oxidative gas sub supplying unit in that zone.