Patent ID: 8290553

Claim:
A device for fabricating thin films on a substrate comprising: a vacuum chamber; a rotatable platen configured to hold one or more substrates within the vacuum chamber, the platen configured to provide an exposed underside of the one or more substrates when mounted on the platen; a housing disposed within the vacuum chamber, the housing having a heating element disposed therein, the housing including an upper portion configured to enclose an upper surface of the platen and a lower portion configured to partially enclose an underside surface of the platen, the partially enclosed portion forming a reaction zone; a heated evaporation cell containing heater coils therein, the heated evaporation cell operatively coupled to the lower portion of the housing via a feed tube comprising separate heater coils and configured to deliver a pressurized metallic reactant containing negligible amounts of oxygen to the reaction zone; and a deposition zone disposed in the vacuum chamber and isolated from the reaction zone, the deposition zone configured to deposit a deposition species to the exposed underside of the one or more substrates when said substrates are not contained in the reaction zone.