Patent ID: 7677199

Claim:
A surface treatment system for forming a deposition layer at a surface of an object, comprising: a deposition chamber having an inner vertical wall; a gas injection unit for injecting a gas for a deposition reaction in the deposition chamber; an electrode unit substantially parallel to the inner vertical wall for applying power to form a deposition reaction in the deposition chamber, said electrode unit being installed between the inner vertical wall of the deposition chamber and the object, a cooling unit adapted to contain a refrigerant and disposed against the inner vertical wall of the deposition chamber and adjacent to a side of the electrode for cooling the injected gas with the refrigerant contained within the cooling unit for dropping the temperature between the inner vertical wall and the electrode unit, wherein the cooling unit includes a cooling plate installed against the inner vertical wall of the deposition chamber, the cooling plate includes a plurality of slots for receiving the gas injection unit, and a refrigerant passage of the cooling unit extends within the cooling plate and around a periphery of the slots; and a control unit for operating the cooling unit, wherein the cooling unit further comprises: a heat exchanger operatively connected to the cooling plate for releasing heat generated in the deposition chamber and absorbed by the cooling plate.