Patent ID: 7989361
Filing Date: 2011-08-02
Classification: C23C,H01L

Abstract:
1. A method of preparing a metal oxide dielectric thin film comprising: preparing a metal oxide precursor solution by dissolving a metal halide as represented by Formula 1 below, and one or more selected from among a metal alkoxide and an ether compound, in an organic solvent; applying the metal oxide precursor solution on a substrate; and thermally treating the substrate to thus obtain a thin film: wherein M is a metal of Groups 1 to 14; X is a halogen element; a is an integer from 1 to about 3; and b is an integer from 1 to about 10, wherein the thermally treating is conducted through a non-hydrolytic sol-gel process to thus prepare a metal oxide represented by Formula 4 below: wherein M is a metal of Groups 1 to 14; x is 1 or 2; and y is greater than or equal to 1 and less than or equal to 10.