Patent ID: 8872413
Filing Date: 2014-10-28
Classification: C23C,H01L,Y10T

Abstract:
1. A perovskite oxide film formed on a substrate, wherein the film has an average film thickness of not less than 5 μm and includes a perovskite oxide represented by a general formula (P) given below: where: 0<w<1.0, 0≦x≦0.2, 0≦y<1.0, 0≦z≦0.2, 0<w+x<1.0; A is an A-site element having an ionic valence of 1 other than K, B is an A-site element, C is a B-site element having an ionic valence of 5, and D is a B-site element; each of A to D is one kind or a plurality of kinds of metal elements; and although 1:3 is a standard ratio of the total number of moles of the A-site elements and of the total number of moles of the B-site elements to the number of moles of the oxygen atoms, the ratio may be deviated from 1:3 within a range in which a perovskite structure can be formed.