Dielectric composition for low-temperature sintering, multilayer ceramic electronic component including the same, and method of manufacturing multilayer ceramic electronic component

A multilayer ceramic electronic component comprising:

• a multilayer body formed by stacking a plurality of dielectric layers containing BaTiO3 as a main ingredient and xB2O3-(1-x)BaO as an accessory ingredient;
• first and second internal electrodes formed on upper surfaces of the dielectric layers to be alternately exposed to both end surfaces of the multilayer body;
• a first external electrode formed on one end surface of the multilayer body to thereby be electrically connected to the first internal electrode;
• and
• a second external electrode formed on a surface opposing the surface on which the first external electrode is formed to thereby be electrically connected to the second internal electrode,
• wherein x ranges from 0.25 to 0.8, and the content of the accessory ingredient ranges from 0.1 to 2.00 mol %, based on 100 mol % of the main ingredient.

A method of manufacturing a multilayer ceramic electronic component, the method comprising:

• preparing a dielectric composition for low-temperature sintering, containing BaTiO3 as a main ingredient and xB2O3-(1-x)BaO as an accessory ingredient;
• preparing a ceramic green sheet using the dielectric composition;
• forming an internal electrode on an upper surface of the ceramic green sheet;
• stacking and compressing the ceramic green sheets to prepare a ceramic multilayer body;
• and
• sintering the ceramic multilayer body,
• wherein x ranges from 0.25 to 0.8, and the content of the accessory ingredient ranges from 0.1 to 2.00 mol %, based on 100 mol % of the main ingredient.