Patent ID: 7119034

Claim:
An atomic layer deposition method of forming an aluminum oxide-comprising layer on a substrate, comprising: providing a substrate within a deposition chamber; chemisorbing an aluminum-comprising first species to form a first species monolayer onto the substrate within the deposition chamber from a gaseous first precursor comprising trimethyl aluminum; contacting the chemisorbed first species with a gaseous second precursor effective to react with the first species to form aluminum oxide from the first species monolayer, the contacting at least in part resulting from flowing a mixture of O 2 and O 3 to the deposition chamber, the O 2 and O 3 mixture being at a temperature of at least 170° C. at a location immediately before where it is emitted into the deposition chamber; and successively repeating the chemisorbing and the contacting to form an aluminum oxide-comprising layer on the substrate.