Patent ID: 6676994
Filing Date: 2004-01-13
Classification: C23C

Abstract:
A method for producing thin films comprising placing a source material in a furnace inside a vacuum system, heating the source material while in the furnace to a temperature sufficiently high to create vapors of the material, flowing an inert gas carrier through the furnace in proximity to the heated source material to entrain the vapors of the material in the carrier gas, placing a substrate in the vacuum system at the exit of the furnace, providing a heated platen above the substrate, and flowing the carrier gas containing the vapors between the heated platen and the substrate with the temperature of the furnace being greater than the temperature of the heated platen and with the temperature of the heated platen being greater than the temperature of the substrate so that the vapors generated in the furnace become supersaturated in a deposition zone where the substrate is located resulting in deposition on the substrate.