CROSS-REFERENCE TO RELATED APPLICATION(S)

This application claims benefit of priority to Korean Patent Application No. 10-2019-0077325 filed on Jun. 27, 2019 in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety.

TECHNICAL FIELD

The present disclosure relates to a multilayer ceramic electronic component, and more particularly, to a method of manufacturing a multilayer ceramic electronic component having excellent reliability.

BACKGROUND

In general, an electronic component using a ceramic material such as capacitors, inductors, piezoelectric elements, varistors, thermistors, or the like, includes a ceramic body formed of a ceramic material, an internal electrode formed in the ceramic body, and an external electrode disposed on a surface of the ceramic body to be connected to the internal electrode.

A multilayer ceramic capacitor, of a multilayer ceramic electronic component, may include a plurality of dielectric layers, internal electrodes disposed to oppose each other with a dielectric layer interposed therebetween, and an external electrode electrically connected to the internal electrode.

A multilayer ceramic capacitor is widely used as a component of a mobile communications device such as a computer, a PDA, a mobile phone, or the like, due to having a small size, high capacity, and ease of mounting.

In recent years, to implement high-performance as well as lightweight, thin, short, and small devices within the electrical and electronic equipment industry, miniaturization, high performance, and ultra-high capacity have been required for an electronic component.

In detail, according to the high capacity and miniaturization of a multilayer ceramic capacitor, a technique to significantly increase the capacitance per unit volume is required.

Thus, in the case of an internal electrode, it is required that an area is increased while a volume is significantly reduced. In this case, a high capacity is required to be implemented by increasing the stacking number of layers.

However, according to the high capacity and miniaturization of a multilayer ceramic capacitor, reliability, in detail, moisture resistance reliability is required to be secured.

SUMMARY

An aspect of the present disclosure is to provide a multilayer ceramic electronic component, and particularly, to a method of manufacturing a multilayer ceramic electronic component having excellent reliability.

According to an aspect of the present disclosure, a multilayer ceramic electronic component includes a ceramic body including a dielectric layer and a plurality of internal electrodes disposed to oppose each other with the dielectric layer interposed therebetween, and having a first surface and a second surface opposing each other in a thickness direction of the ceramic body, a third surface and a fourth surface connected to the first surface and the second surface, and opposing each other in a length direction of the ceramic body, and a fifth surface and a sixth surface connected to the first surface to the fourth surface, and opposing each other in a width direction of the ceramic body, and an external electrode disposed outside the ceramic body, and electrically connected to the internal electrode. The external electrode includes an electrode layer electrically connected to one or more of the plurality of internal electrodes, a first plating layer disposed on the electrode layer, and a second plating layer disposed on the first plating layer, and in a cross-section of the ceramic body in first and second directions, a thickness T1of the electrode layer corresponding to a central region of the ceramic body in the thickness direction is 5 μm or more and 30 μm or less, a thickness T2of the electrode layer corresponding to a region in which an outermost internal electrode, of the internal electrode, is located is 5 μm or more and 15 μm or less, and a thickness T3of the electrode layer corresponding to a corner portion of the ceramic body is 0.1 μm or more and 10 μm or less.

Other features and aspects will be apparent from the following detailed description, the drawings, and the claims.

