Patent ID: 7312165
Filing Date: 2007-12-25
Classification: C23C,H01L

Abstract:
1. A method of depositing a thin film of germanium oxide and an oxide of a non-germanium metal by atomic layer deposition (ALD) onto a substrate in an ALD chamber, comprising the steps of: a) chemisorbing a first precursor compound onto the substrate, the first precursor compound including the non-germanium metal; b) allowing a first co-reactant compound to react with the first precursor compound chemisorbed onto the substrate thereby forming a thin film of an oxide of the non-germanium metal, the first co-reactant compound including oxygen; c) chemisorbing a second precursor compound onto the thin film of the oxide of the non-germanium metal, wherein the second precursor compound comprises at least one member selected from the group consisting of: d) allowing a second co-reactant compound to react with the second precursor compound chemisorbed onto the thin film of an oxide of the non-germanium metal thereby forming a thin film of germanium oxide on the thin film of the oxide of the non-germanium metal.