Multilayer capacitor with core-shell dielectric

A multilayer capacitor comprising:

• a body including an active portion including a plurality of dielectric layers and a plurality of internal electrodes stacked in a first direction with respective dielectric layers among the plurality of dielectric layers interposed therebetween;
• and
• external electrodes formed on outer surfaces of the body and connected to the internal electrodes,
• wherein the body includes the active portion having the plurality of internal electrodes positioned therein to form capacitance, side margin portions including a plurality of dielectric layers and covering a first surface and a second surface of the active portion opposing each other in a second direction, and cover portions including a plurality of dielectric layers and covering the active portion in the first direction,
• the dielectric layers include a barium titanate-based composition,
• the dielectric layer of the active portion and the cover portion includes tin (Sn), and a content of Sn in the dielectric layer of the cover portion is different from that of Sn in the dielectric layer of the active portion,
• the dielectric layer of the cover portion includes a plurality of grains having a core-shell structure, and
• wherein the dielectric layer of the cover portion contains 0.1 to 10 mol of Sn based on 100 mol of barium titanate (BaTiO3).

A multilayer capacitor comprising:

• a body including an active portion including a plurality of dielectric layers and a plurality of internal electrodes stacked in a first direction with respective dielectric layers among the plurality of dielectric layers interposed therebetween;
• and
• wherein the body includes the active portion having the plurality of internal electrodes positioned therein to form capacitance, a side margin portion including a plurality of dielectric layers and covering at least one of a first surface and a second surface of the active portion opposing each other in a second direction, and a cover portion including a plurality of dielectric layers and covering the active portion in the first direction,
• the dielectric layers of the active portion, the side margin portion, and the cover portion include a barium titanate-based composition,
• the dielectric layer of the active portion, the cover portion and the side margin portion include tin (Sn), and a content of Sn in the dielectric layer of the cover portion is different from a content of Sn in the dielectric layer of the side margin portion with respect to 100 mol % of the barium titanate-based composition, and
• wherein the dielectric layer of the cover portion includes at least some grains having a core-shell structure.