Multilayer ceramic capacitor including dielectric layers with different regions having different concentrations of dysprosium

A multilayer ceramic capacitor comprising:

• a ceramic body including first and second internal electrodes facing each other with dielectric layers interposed therebetween,
• wherein the dielectric layers include dielectric grains having a core-shell structure,
• wherein the dielectric grains include, respectively, first regions in cores of the core-shell structure essentially free of dysprosium (Dy) and second regions outside of the first regions and substantially surrounding the first regions, and
• wherein, where a shortest distance between boundaries of the respective first regions of two adjacent dielectric grains is “L,” a first concentration of dysprosium (Dy) in a third region of material within ±0.2 L from a halfway point along the shortest distance between the dielectric grains is lower than a second concentration of dysprosium (Dy) in the second regions.

A multilayer ceramic capacitor comprising:

• a ceramic body including first and second internal electrodes facing each other with dielectric layers interposed therebetween;
• and
• a non-grain region directly between a first dielectric grain and a second dielectric grain of a plurality of dielectric grains in one of the dielectric layers,
• wherein the first and second dielectric grains each have a first region essentially free of dysprosium (Dy) and a second region at least partially surrounding the first region and having a first concentration of dysprosium (Dy), and
• wherein the non-grain region includes a third region, within 30% to 70% along a shortest distance between the first region of the first dielectric grain and the first region of the second dielectric grain, having a second concentration of dysprosium (Dy) smaller than the first concentration of dysprosium (Dy).

A multilayer ceramic capacitor, comprising:

• a plurality of first and second internal electrodes alternately stacked, in a stacking direction, with dielectric layers interposed therebetween,
• wherein, in a cross-section of the multilayer ceramic capacitor taken substantially parallel to the stacking direction:
• a dielectric layer between first and second internal electrodes includes a non-grain region directly between a first dielectric grain and a second dielectric grain,
• the first and second dielectric grains each have outer peripheries with dysprosium (Dy), where a highest concentration of dysprosium (Dy) in the outer peripheries is a first concentration,
• the first and second dielectric grains each have cores that are essentially free of dysprosium (Dy),
• the non-grain region includes a sub-region where a second concentration of dysprosium (Dy) is less than the first concentration, and
• the sub-region is located no closer to either of the first and second dielectric grains than 30% of a distance of a shortest line between the cores of the first and second dielectric grains.