Patent ID: 8297292

Claim:
A cleaning device for removing deposits or particles adhered to parts in a processing chamber of a semiconductor manufacturing apparatus, the device comprising: a pure water steam generating vessel configured to store pure water and generate pure water steam from the pure water; a supply port configured to supply the pure water steam to a cleaning target portion; a supply line, made of a pliable material, configured to connect the pure water steam generating vessel with the supply port; a collection port installed around the supply port and configured to collect steam used in cleaning from the cleaning target portion; a collection vessel configured to condense and collect the used steam; and a collection line, made of a pliable material, configured to connect the collection port with the collection vessel, wherein a contact surface of the pure water steam generating vessel with the pure water is made of resin, and a contact surface of the supply line with the pure water steam is made of resin, the collection port has an opening end making contact with the cleaning target portion where cleaning target surfaces of an angled portion of a member intersect, and the opening end has a protruded shape in an inverse-V shape as a whole.