US 11,901,131 B2Granted

Multilayer ceramic electronic component including external electrodes having improved reliability

AssigneeSamsung Electro-Mechanics Co., Ltd.

InventorsKyo Yeol Lee, Seung Hun Han, In Young Kang, Jung Min Kim, Jeong Ryeol Kim

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Abstract

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. The first conductive layer and the second conductive layer are sintered electrodes including a conductive metal and glass, and the first coating layer includes a plurality of openings disposed on the first electrode layer and the second electrode layer.

Claims22

Dependent claims

A multilayer ceramic electronic component comprising:

a ceramic body having a first surface and a second surface opposing each other in a first direction, a third surface and a fourth surface opposing each other in a second direction, and a fifth surface and a sixth surface opposing each other in a third direction, the ceramic body including a first internal electrode and a second internal electrode disposed to be alternately stacked in the third direction with a dielectric layer interposed therebetween;
a first external electrode connected to the first internal electrode which extends from the first surface, 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 which extends from the second surface, and including a second electrode layer, a second conductive layer, and a second metal layer;
a first coating layer disposed on the ceramic body, the first electrode layer and the second electrode layer;
and
a second coating layer disposed on the ceramic body, the first external electrode, and the second external electrode,
wherein the first conductive layer and the second conductive layer are sintered electrodes including a conductive metal and glass, and the first coating layer includes a plurality of openings disposed on the first electrode layer and the second electrode layer,
the second coating layer includes a first insulating layer and a second layer covering the first insulating layer, and
the first insulating layer and the second layer are disposed on one of the first surface and the second surface to cover an end of the first internal electrode or an end of the second internal electrode.

6 more elements

A multilayer ceramic electronic component comprising:

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 which extends from a first surface of the ceramic body, and including a first electrode layer and a first conductive layer;
a second external electrode connected to the second internal electrode which extends from a second surface of the ceramic body opposing the first surface in a first direction, and including a second electrode layer and a second conductive layer;
a first coating layer, including an inorganic film layer, disposed between the first electrode layer and the first conductive layer and between the second electrode layer and the second conductive layer;
and
a second coating layer, including at least one vinyl group, disposed to cover the first external electrode and the second external electrode,
wherein the second coating layer includes a first layer and a second layer, and
on one of the first surface and the second surface, the second layer is disposed on the first surface in the first direction.

5 more elements

A multilayer ceramic electronic component comprising:

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 which extends from a first surface of the ceramic body, and including a first electrode layer and a first conductive layer;
a second external electrode connected to the second internal electrode which extends from a second surface of the ceramic body opposing the first surface in a first direction, and including a second electrode layer and a second conductive layer;
a first coating layer disposed between the first electrode layer and the first conductive layer and between the second electrode layer and the second conductive layer;
and
a second coating layer disposed on the first external electrode and the second external electrode,
wherein the first coating layer has a plating solution penetration prevention layer of an island shape,
the second coating layer includes a first insulating layer and a second layer covering the first insulating layer, and
the first insulating layer includes a material different from the second layer.

6 more elements

Dependencies are inferred from the claim text.