A multilayer ceramic capacitor includes a multilayer body including dielectric layers and internal electrode layers laminated alternately on each other, and external electrode layers provided on opposing end surfaces of the multilayer body in a length direction orthogonal or substantially orthogonal to a lamination direction, and each connected with the internal electrode layers, in which the dielectric layers each include at least one of Ca, Zr, or Ti, the internal electrode layers each include Cu, and when a dimension in the lamination direction of the multilayer body is defined as T0, a dimension in the length direction of the multilayer body is defined as L0, and a dimension in a width direction orthogonal or substantially orthogonal to the lamination direction and the length direction is defined as W0, a relationship of L0<W0<T0 is satisfied.

A multilayer ceramic capacitor includes a capacitor main body including a multilayer body including dielectric layers and internal electrode layers alternately laminated, and external electrodes each provided at one of two end surfaces of the multilayer body and connected to the internal electrode layers, and two interposers provided on both sides in a length direction of a surface of the capacitor main body. The two interposers each include a protrusion extending from one of the two interposers to another of the two interposers.

A multilayer capacitor includes a body including dielectric layers and internal electrodes, and external electrodes, wherein the body has first and second surfaces opposing each other in a first direction, third and fourth surfaces opposing each other in a second direction, and fifth and sixth surfaces opposing each other in a third direction perpendicular to the first and second directions. A length of a portion of the plurality of internal electrodes in the third direction in an intermediate region of the body in the first direction is greater than a length of the first surface or the second surface of the body in the third direction. The plurality of internal electrodes have a bottleneck structure between the intermediate region and at least one of the first and second surfaces, and wherein the bottleneck structure has a shape recessed into an inner portion of the body.

A multilayer ceramic electronic component includes a ceramic body including a first internal electrode and a second internal electrode disposed to be alternately stacked with a dielectric layer interposed therebetween, a first external electrode connected to the first internal electrode and including a first electrode layer, a first conductive layer, and a first metal layer, a second external electrode connected to the second internal electrode and including a second electrode layer, a second conductive layer, and a second metal layer, and a first coating layer disposed on the ceramic body, the first electrode layer and the second electrode layer, wherein the first coating layer may include an alkyl(meth)acrylate-based polymer.

The present invention is directed to a multilayer capacitor and a circuit board containing the multilayer capacitor. The capacitor includes a main body containing a set of alternating dielectric layers and internal electrode layers wherein the set contains a first internal electrode layer and a second internal electrode layer and each internal electrode layer includes a top edge, a bottom edge opposite the top edge, and two side edges extending between the top edge and the bottom edge that define a main body of the internal electrode layer. Each internal electrode layer contains at least one lead tab extending from the top edge of the main body of the internal electrode layer and at least one lead tab extending from the bottom edge of the main body of the internal electrode layer, wherein at least one lead tab extending from the top edge of the main body of the internal electrode layer and at least one lead tab extending from the bottom edge of the main body of the internal electrode layer include a lateral edge aligned with a side edge of the main body of the internal electrode layer. External terminals are electrically connected to the internal electrode layers wherein the external terminals are formed on a top surface of the capacitor, a bottom surface of the capacitor opposing the top surface of the capacitor, and extending along an end surface between the top surface and the bottom surface.

A multilayer ceramic capacitor includes a multilayer body including dielectric ceramic layers and internal electrode layers laminated alternately in a lamination direction, and a pair of external electrodes on both end portions in the length direction of the multilayer body and respectively connected to the internal electrode layers. The pair of external electrodes each include a base region covering at least each of the first and second end surfaces, connected to the internal electrode layers, and including Cu as a main component, a cover region on the base region to cover the base region, and including Ag as a main component, and a reaction region between the base region and the cover region including Cu included in the base region and Ag included in the cover region reacting with each other.

A multilayer ceramic electronic component includes a multilayer body including ceramic layers that are laminated, first and second internal electrode layers respectively on the ceramic layers and exposed to first and second end surfaces, first and second external electrodes respectively connected to the first and second internal electrode layers. The first and second external electrodes include a base electrode layer including at least one of Ni, Cr, Cu, or Ti and a plating layer including lower, middle, and upper layer plating layers. A particle diameter of a metal included in the lower layer plating layer is larger than a particle diameter of a metal included in the middle layer plating layer.

A multilayer ceramic capacitor includes a multilayer body including dielectric ceramic layers and internal electrode layers laminated alternately in a lamination direction, and a pair of external electrodes on both end portions in the length direction of the multilayer body and respectively connected to the internal electrode layers. The pair of external electrodes each include a base region covering at least each of the first and second end surfaces and connected to the internal electrode layers, and a cover region on the base region to cover the base region. The cover region includes maximum thickness portions each including a maximum thickness in the cover region, in a region corresponding to the ranges of about ±10 μm in the lamination direction centered around internal electrode layers at both outermost ends in the lamination direction among the internal electrode layers.

A component built-in substrate includes a multilayer body and a substrate including a multilayer ceramic electronic component embedded therein. The multilayer ceramic electronic component includes a first connection portion that protrudes from the first external electrode, and a second connection portion that protrudes from the second external electrode. The substrate includes a core material. The multilayer ceramic electronic component including the first connection portion and the second connection portion includes a surface covered by the core material and embedded in the substrate. The first connection portion protrudes toward a surface of the substrate, and is not exposed at the surface of the substrate. The second connection portion protrudes toward the surface of the substrate, and is not exposed at the surface of the substrate.

A multilayer ceramic electronic device includes a multilayer chip having a plurality of internal electrode layers that face each other and a plurality of dielectric layers, each of which is sandwiched by two of the plurality of internal electrode layers, one end of at least one of the plurality of internal electrode layers being exposed at a side face of the multilayer chip, a first external electrode that is provided on the side face of the multilayer chip, is in contact with at least one of the each end of the plurality of internal electrode layers, and includes ceramic grains, and a second external electrode that is provided on the first external electrode, has a glass, and has a main component that is a same metal as that of the first external electrode.