Patent ID: 8354136
Filing Date: 2013-01-15
Classification: C23C,H01L,Y10T

Abstract:
1. A process for preparing a superconductor oxide film, comprising the steps of: depositing a first precursor solution onto a substrate to form a precursor film, the first precursor solution comprising precursor components to a rare earth-alkaline earth metal-transition metal oxide compriing a salt of a rare earth element, a salt of an alkaline earth metal, and a salt of said transition metal in one or more solvents, wherein at least one of the salts is a fluoride-containing salt, and wherein the ratio of the transition metal to the alkaline earth metal is greater than 1.5; and treating the precursor film to form a rare earth-alkaline earth metal-transition metal oxide superconductor, wherein the overall ratio of the transition metal to the alkaline earth metal in the precursor film is greater than 1.5, wherein the ratio of the transition metal to the alkaline earth metal at an interface between the substrate and the oxide superconductor is about 1.5, and wherein the overall thickness of the oxide superconductor is greater than about 0.8 μm.