OXIDE DIELECTRIC, METHOD OF PRODUCING THE DIELECTRIC, PRECURSOR FOR OXIDE DIELECTRIC, SOLID ELECTRONIC DEVICE AND METHOD OF PRODUCING THE DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an oxide dielectric having excellent characteristics, a solid electronic device provided with the oxide dielectric, e.g. a high-frequency filter, a patch antennas, a capacitor, a semiconductor device or a micro-electromechanical system.SOLUTION: An oxide layer 30 composed of an oxide dielectric contains an oxide which has a crystalline phase of a pyrochlore crystal structure and comprises bismuth(Bi), niobium(Nb) and optionally unavoidable impurities, and, with the atomic number of bismuth(Bi) as 1, the atomic number of niobium(Nb) is 1.3 or more and 1.7 or less.