Patent ID: 7498059
Filing Date: 2009-03-03
Classification: C23C,C30B

Abstract:
1. A process of growing a thin film on a substrate in a reaction space by a sequential vapor deposition process comprising a plurality of cycles, wherein a first and second vapor-phase reactant are alternately fed to the reaction space through separate first and second inflow channels that open directly into the reaction space, each cycle comprising: providing the first reactant through the first inflow channel while flowing only an inactive gas through the second inflow channel, wherein the first reactant is selected from halogenides of metals and metal organic compounds; stopping provision of the first reactant; removing the first reactant from the reaction space; providing the second reactant through the second inflow channel while flowing only the inactive gas through the first inflow channel, wherein the second reactant is selected from water, sulfur, hydrogen sulfide, and ammonia; stopping provision of the second reactant; and removing the second reactant from the reaction space; wherein during the removing steps the reaction space is simultaneously filled with an inactive carrier gas.