Patent ID: 7731933
Filing Date: 2010-06-08
Classification: C04B,C23C,H01L

Abstract:
1. A method of manufacturing an insulating target material comprising: preparing a first precursor composition including a raw material solution including Pb, Zr, Ti and Nb, a polycarboxylic acid or a polycarboxylic acid ester, and an organic solvent; forming a first powder of a complex oxide including Pb, Zr, Ti and Nb by spray drying the first precursor composition while simultaneously heating the first precursor composition; and forming a second powder by subjecting the first powder and a second precursor composition that is obtained by mixing a basic substance with the first precursor composition to hydrothermal synthesis to allow a complex oxide including Pb, Zr, Ti and Nb to be grown around particles of the first powder, wherein the second powder includes Nb in an amount of 10 to 30 mol %.