Patent ID: 6503792
Filing Date: 2003-01-07
Classification: H01L

Abstract:
A method of fabricating a patterned metal-oxide-containing layer, which comprises the following method steps:providing a substrate; depositing a metal-oxide-containing layer on the substrate; heat treating the metal-oxide-containing layer in a first heat treatment step; patterning the metal-oxide-containing layer and thereby causing edge sections of the metal-oxide-containing layer to have a stoichiometric deficiency of a given element in the metal-oxide-containing layer; applying an annealing layer to cover the metal-oxide-containing layer at least on the edge sections, the annealing layer containing the given element of the metal-oxide-containing layer; in a second heat treatment step, heat-treating to diffuse the given element from the annealing layer into regions of the edge sections of the metal-oxide-containing layer having the stoichiometric deficiency; and removing the annealing layer from the metal-oxide-containing layer after the second heat treatment step.