Patent ID: 9406440
Filing Date: 2016-08-02
CPC Classification: C04B,H01G

Claim Text:
1. A method for manufacturing a laminated ceramic capacitor, the method comprising: blending Ba, Ca and Ti powders to obtain a blended powder, drying the blended powder to obtain an adjusted powder, calcining the adjusted powder to obtain a main constituent powder that includes a perovskite-type compound, adding a V compound and an Mg compound to the main constituent powder to obtain a mixed powder, drying the mixed powder to obtain a dielectric raw material powder; preparing a ceramic slurry by slurrying the dielectric raw material powder; forming the ceramic slurry into ceramic green sheets; forming an unfired laminated body having the ceramic green sheets and stacked conductive paste films, the conductive paste films serving as internal electrodes after firing; and firing the unfired laminated body to form a capacitor main body, the capacitor main body comprising a plurality of stacked dielectric ceramic layers and a plurality of internal electrodes along interfaces between the dielectric ceramic layers, wherein, in the main constituent powder that includes the perovskite-type compound, a molar ratio x (Ca/(Ba+Ca)) of Ca to the total amount of Ba and Ca is 0.05≦x≦0.15, and wherein, in the dielectric raw material powder, when a content of Ti is regarded as 100 parts by mol, an Mg content a (parts by mol) is 0.01≦a≦0.1, and a V content b (parts by mol) is 0.05≦b≦0.5, and an Mn content d (parts by mol) is 0.5≦d≦1.0.