| abstract |
The invention provides the manufacture method of dielectric ceramic composition, it is a method of making the dielectric ceramic composition that contains following compositions: the principal constituent that contains barium titanate, the oxide compound that contains R1 (wherein, R1 is at least a less than in the rare earth element of 108pm of effective ionic radius when being selected from 9 coordinations) the 4th minor component, the oxide compound that contains R2 (wherein, R2 is that the effective ionic radius when being selected from 9 coordinations is at least a in the rare earth element of 108pm～113pm) the 5th minor component, it has following operation: make the part of raw materials of principal constituent raw material and the 4th minor component and/or the 5th minor component react the operation of the raw material that obtains reacting in advance; With the operation of the raw material that adds remaining the 4th and the 5th minor component in the raw material that reacted, in the dielectric ceramic composition that finally obtains, the ratio (M1/M2) of the mole number M1 of R1 and the mole number M2 of R2 is in the scope of 4＜M1/M2≤100.According to the present invention,, also can take into account the dielectric ceramic composition and the manufacture method thereof of relative permittivity and capacity temperature characteristic even can provide with the dielectric layer thin layerization. |