Multilayer ceramic capacitor and manufacturing method of the same

A manufacturing method of a pre-mounted multilayer ceramic capacitor comprising:

• preparing a multilayer ceramic capacitor having a ceramic main body and a pair of external electrodes, the ceramic main body having a structure in which each of a plurality of dielectric layers and each of a plurality of internal electrode layers are alternately stacked, a main component of the dielectric layers being ceramic, the ceramic main body having a rectangular parallelepiped shape, the plurality of internal electrode layers being alternately exposed to a first end face and a second end face of the ceramic main body, the first end face being opposite to the second end face, wherein a first external electrode that is formed from the first end face to at least one of side faces of the ceramic main body;
• and a second external electrode that is formed from the second end face to at least one of the side faces of the ceramic main body,
• heating the pre-mounted multilayer ceramic capacitor in a reduced pressure atmosphere so that a relationship y≤1+1.48x is satisfied when a temperature of the multilayer ceramic capacitor is increased from 190 degrees C. to 260 degrees C.,
• wherein “x” (mm3) is a volume of the multilayer ceramic capacitor,
• wherein “y” is a total amount of hydrogen gas, water vapor and carbonic acid gas (number of molecules/1015) released from the multilayer ceramic capacitor.