MULTILAYER CERAMIC CAPACITOR AND BOARD HAVING THE SAME MOUNTED THEREON

摘要

A multilayer ceramic capacitor may include: a ceramic body in which dielectric layers having an average thickness of 0.2 μm to 2.0 μm are stacked; an active layer configured to form capacitance by including first and second internal electrodes alternately exposed to both end surfaces of the ceramic body, having at least one of the dielectric layers interposed therebetween; an upper cover layer formed on the active layer; a lower cover layer formed below the active layer and being thicker than the upper cover layer; and first and second external electrodes covering the end surfaces of the ceramic body. At least one edge of the ceramic body in length, width, and thickness directions may be rounded. When a radius of curvature of the edge is defined as R and a thickness of the upper cover layer is defined as D, R/D may be in a range of 0.1 to 0.7.

主权项

1. A multilayer ceramic capacitor comprising:
a ceramic body in which a plurality of dielectric layers having an average thickness of 0.2 μm to 2.0 μm are stacked; an active layer including first and second internal electrodes alternately exposed to end surfaces of the ceramic body, at least one of the dielectric layers being interposed between the first and second internal electrodes; an upper cover layer disposed on the active layer; a lower cover layer disposed below the active layer and being thicker than the upper cover layer; and first and second external electrodes covering the end surfaces of the ceramic body, wherein at least one edge of the ceramic body in length, width, and thickness directions is rounded, and when a radius of curvature of the edge is defined as R and a thickness of the upper cover layer is defined as D, R/D is in a range of 0.1 to 0.7 (0.1≦R/D≦0.7).