Patent ID: 6096127
Filing Date: 2000-08-01
Classification: C30B,H01P

Abstract:
A method for forming a thin film dielectric material, comprising:selecting a superstoichiometric ratio between two or more components of a selected thin film dielectric material to provide a superstoichiometric composition;forming the two or more components in the superstoichiometric ratio into the superstoichiometric composition;applying the superstoichiometric composition to a crystalline substrate to form a layer of the superstoichiometric composition having an initial mean grain size, wherein a lattice mismatch between the crystalline substrate and the layer of the superstoichiometric composition is sufficient to cause epitaxial growth of the superstoichiometric composition on the crystalline substrate; andheating the layer to a temperature below the eutectic temperature to form an annealed layer of the thin film dielectric material having a final mean grain size, wherein the final mean grain size is more than the initial mean grain size and wherein the temperature is at least about 70% of the eutectic temperature.