公开(公告)号：US20180068792A1

公开(公告)日：2018-03-08

申请号：US15480511

申请日：2017-04-06

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kazunori EGASHIRA ,  Kazunori KUNIMOTO ,  Seiji KATSUTA ,  Yosuke TERASHITA ,  Takayoshi YAMAMOTO

IPC: H01G4/248 ,  H01G4/30 ,  H01B1/02

CPC classification number: H01G4/248 ,  H01B1/02 ,  H01G4/12 ,  H01G4/232 ,  H01G4/30

Abstract: An external electrode includes an underlying electrode layer on an end surface of a ceramic body and connected to an internal electrode, an external electrode layer located outside the underlying electrode layer, and an intermediate electrode layer including at least a portion between the underlying electrode layer and the external electrode layer. The intermediate electrode layer includes a conductive resin, and the underlying electrode layer and the external electrode layer include a material lower in electrical resistivity than the conductive resin. The intermediate electrode layer entirely or substantially entirely covers the end surfaces and extends from the end surfaces to portions, respectively, of one main surface, and the underlying electrode layer is partially exposed from the intermediate electrode layer to include an exposed surface and is in surface-contact with the external electrode layer at the exposed surface.

公开(公告)号：US20170294268A1

公开(公告)日：2017-10-12

申请号：US15484370

申请日：2017-04-11

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Seiji KATSUTA ,  Yosuke TERASHITA ,  Takayoshi YAMAMOTO ,  Atsushi ISHIDA ,  Kota ZENZAI

IPC: H01G4/30 ,  H01G4/10 ,  H01G4/012 ,  H01G4/12 ,  H01G4/232

CPC classification number: H01G4/30 ,  H01G4/012 ,  H01G4/10 ,  H01G4/12 ,  H01G4/1227 ,  H01G4/1236 ,  H01G4/232 ,  H01G4/2325

Abstract: In a multilayer ceramic capacitor, outer electrodes include base electrode layers including a conductive metal and a glass component on a ceramic multilayer body, conductive resin layers including a thermosetting resin and a metal component on the base electrode layers such that exposed portions of the base electrode layers are exposed at least at one corner on one end surface side of the ceramic multilayer body and at least at one corner on the other end surface side thereof, and plating layers on the conductive resin layers and the exposed portions of the base electrode layers. The exposed portions of the base electrode layers are in direct contact with the plating layers at least at one corner on the one end surface side of the ceramic multilayer body and at least at one corner on the other end surface side thereof.

公开(公告)号：US20210057162A1

公开(公告)日：2021-02-25

申请号：US16930351

申请日：2020-07-16

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Takayoshi YAMAMOTO

IPC: H01G4/30 ,  H01G4/012 ,  H01G4/12 ,  H01G4/008 ,  H01G2/06

Abstract: A multilayer ceramic electronic component includes a stacked body, and an external electrode including an underlying electrode layer containing a conductive metal and a glass component, a resin layer containing a thermosetting resin and no metal component, and a plating layer. The underlying electrode layer extends from a first or second end surface, and covers a portion of each of first and second main surfaces and first and second lateral surfaces. The resin layer covers the underlying electrode layer on the second main surface adjacent to the first or second end surface. The plating layer covers a portion of the surface of the underlying electrode layer that is not covered with the resin layer, and covers the surface of the resin layer.