Multilayer ceramic electronic component

A multilayer ceramic electronic component, comprising:

• a ceramic body including:
• a dielectric layer including a main component, and a plurality of grains with grain boundaries disposed between the plurality of grains;
• and
• first and second internal electrodes alternately stacked with the dielectric layer interposed therebetween,
• wherein the dielectric layer comprises a triple point disposed in contact with three grain boundaries and a secondary phase of Si disposed inside the triple point,
• wherein a dispersion of an Si content at an interface between the dielectric layer and the internal electrode is 1% by weight or less.

A multilayer ceramic electronic component, comprising:

• a ceramic body including:
• a dielectric layer including a main component, and a plurality of grains with grain boundaries disposed between the plurality of grains;
• and
• first and second internal electrodes alternately stacked with the dielectric layer interposed therebetween,
• wherein the dielectric layer comprises a triple point disposed in contact with three grain boundaries and a secondary phase of Si disposed inside the triple point,
• wherein a secondary phase of Si at an interface between the dielectric layer and the internal electrode has an average content of 0.1 mol % or less, and
• wherein a ratio (b/a) of an average Si content (b) of the triple point to an average Si content (a) inside a grain of the plurality of grains is within a range of exceeding 3 and/or less than 6.