Patent ID: 7135422

Claim:
A method for forming a multi-layered structure, comprising: loading a substrate into a deposition chamber; introducing a first metal precursor into the deposition chamber, wherein at least a portion of the first metal precursor forms a first absorption film on the substrate; purging the deposition chamber of the first metal precursor; introducing a first oxidizing agent including water vapor providing low oxidation of the substrate into the deposition chamber, wherein at least a portion of the first oxidizing agent oxidizes the first absorption film forming a first metal oxide film, and wherein formation of an oxide film at an interface between the substrate and the first metal oxide film is prevented; purging the deposition chamber of the first oxidizing agent; introducing a second metal precursor into the deposition chamber, wherein at least a portion of the second metal precursor forms a second absorption film on the first metal oxide film; purging the deposition chamber of the second metal precursor; and introducing a second oxidizing agent including ozone providing high oxidation of the substrate relative to the low oxidation provided by the first oxidizing agent into the deposition chamber, wherein at least a portion of the second oxidizing agent oxidizes the second absorption film forming a second metal oxide film and wherein the second metal oxide film is formed faster than the first metal oxide film.