Patent ID: 7791859

Claim:
A multilayer ceramic capacitor comprising: a multilayer ceramic structure having a plurality of dielectric layers and a plurality of internal electrodes alternating with the dielectric layers; and external electrodes provided at both ends of the multilayer ceramic, electrically connected to at least one of the internal electrodes, wherein the dielectric layers comprise the dielectric ceramic powder manufactured by dispersing BaCO 3 powder having an acicular shape into a solution of solvent and dispersant to prepare a slurry and then wet-milling the slurry to change the acicular shape of the BaCO 3 powder for a spherical shape; mixing TiO 2 powder slurry into the wet-milled BaCO 3 slurry to form mixed slurry and then drying the mixed slurry into mixed powder; and calcining the dried mixed powder to produce BaTiO 3 powder; wherein BaTiO 3 power has uniform particle size distribution, with mean particle size of 150 nm to 250 nm, D10/D50 of at least 0.6 and D90/D50 of up to 1.4 based on FE-SEM picture and at least 5.0 m2/g of BET specific surface area, and based on FE-SEM picture, a c/a ratio of c-axis to a-axis of the powder crystal lattice is at least 1.009.