Patent ID: 8124179
Filing Date: 2012-02-28
Classification: B05D,C23C,C30B

Abstract:
1. A process for preparation of a thin film of an organic-inorganic nature on a substrate by an atomic layer deposition (ALD) technique comprising the following steps: a) contacting the substrate with a pulse of an inorganic precursor selected from the group consisting of metal alkyls, metal cycloalkyls, metal aryls, metal amine, metal silylamine, metal halogenides, metal carbonyls and metal chelates, where the metal is selected from the group consisting of Al, Si, Ge, Sn, In, Pb, alkali metals, alkaline earth metals, 3d-insertion metals, 4d-insertion metals, 5d-insertion metals, lanthanides and actinides; b) reacting the inorganic precursor with at least one surface of the substrate; c) removing non-reacted inorganic precursor and reaction by-products if any; d) contacting the surface of said substrate with a pulse of an organic precursor; where the organic precursor is an organic compound with at least two reactive substituents selected from the group consisting of —OH, —OR, ═O, —COOH, —SH, —SO e) reacting the organic precursor with the inorganic compound bound to the substrate to form an organic inorganic hybrid layer; f) removing non-reacted organic precursor and reaction by-products if any; g) repeating step a) to f) until the wanted film thickness is achieved.