METHOD FOR MAKING CERAMIC POWDER HAVING PEROVSKITE STRUCTURE AND EXCELLENT DIELECTRIC PROPERTY, CERAMIC POWDER AND CERAMIC ELECTRONIC COMPONENT HAVING PEROVSKITE STRUCTURE, MANUFACTURING METHOD THEREOF, MULTILAYER CERAMIC CONDENSER AND MANUFACTURING METHOD THEREOF

摘要

PURPOSE: Provided is a method for making ceramic powder, by which ceramic powder having high crystallinity and excellent dielectric property suitable to be used in ceramic electronic components are obtained. CONSTITUTION: The method for making ceramic powder having a perovskite structure comprises forming ceramic powder by non-wet treatment and heat treating the formed ceramic powder in liquid. Particularly, the non-wet treatment is any one selected from a solid phase treatment, hydroxide salt treatment, citric acid treatment and vapor phase treatment. The heat treating step is performed at a temperature of 80 deg.C or higher. The ceramic powder obtained from the method has a particle diameter of 0.2 micrometers or less, c/a axis ratio of the crystal lattice of 1.006 or more, and an area occupied by holes in one particle of 5% or less.