CERAMIC CAPACITOR AND ITS MANUFACTURING METHOD

摘要

PURPOSE: To provide a multilayer ceramic capacitor, whose reliability is superior if when a ceramic green sheet is thin at 5 μm or smaller by a method wherein a temporary firing temperature in the manufacture of a dielectric raw material and the firing temperature of the multilayer ceramic capacitor are limited and the solid solubility of CaZrO3-CaTiO3 can be enhanced, and to provide its manufacturing method. CONSTITUTION: The ceramic capacitor is constituted of a dielectric ceramic which is composed mainly of CaZrO3 and CaTiO3; the X-ray diffraction peak of the (200) face, detected near 31.6° of a CaZrO3-CaTiO3 solid solution obtained by the powder X-ray diffraction pattern of the ceramic, is designated as A; the X-ray diffraction peak of a (121) face detected near 32.0° is designated as B; the X-ray diffraction peak of a (002) face detected near 32.4° is designated as C; a valley of about 31.8° formed between the peak A and the peak B is designated as D; and a valley of about 32.2° formed between the peak B and the peak C is designated as E. Then, conditional expressions (X-ray intensity of valley D)/(X-ray intensity of peak B)< 0.2 and (X-ray intensity of valley E)/(X-ray intensity of peak B)< 0.2 are satisfied.