公开(公告)号：US20230207222A1

公开(公告)日：2023-06-29

申请号：US18116430

申请日：2023-03-02

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Shinji OTANI ,  Hidehiko TANAKA

IPC: H01G4/30 ,  H01G4/012

CPC classification number: H01G4/30 ,  H01G4/012 ,  Y10T29/435

Abstract: A method for manufacturing a multilayer ceramic electronic component includes preparing a ceramic green sheet, forming a plurality of internal electrode patterns on a main surface of the ceramic green sheet, applying a ceramic paste above the main surface of the ceramic green sheet, stacking a plurality of the ceramic green sheets, pressing the plurality of stacked ceramic green sheets, and cutting the plurality of pressed ceramic green sheets. The ceramic paste at least partially overlaps end portions of the internal electrode patterns, and a stepped region is provided on the ceramic green sheet. When cutting the ceramic green sheets in a first direction, the cutting is performed at a position of the stepped region between two of the internal electrode patterns adjacent to each other in a second direction.

公开(公告)号：US20220020526A1

公开(公告)日：2022-01-20

申请号：US17371793

申请日：2021-07-09

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Shinji OTANI ,  Hiroki IMAEDA ,  Namiko SASAJIMA ,  Tomohiro SUNAGA ,  Masami OKADO ,  Yoshimasa YOSHIOKA

IPC: H01F27/29 ,  H01F27/28 ,  H01F27/255

Abstract: An electronic component includes a composite body made of a composite material of resin and magnetic metal particles, an inner electrode which is provided in the composite body and which has an end surface exposed from an outer surface of the composite body, and a metal film provided on the outer surface of the composite body and on the end surface of the inner electrode. The metal film includes a first region provided on the end surface of the inner electrode and a second region which is in contact with the magnetic metal particles exposed at the outer surface of the composite body and which is provided on the outer surface of the composite body. The thickness of the first region is less than the thickness of the second region.

公开(公告)号：US20210265097A1

公开(公告)日：2021-08-26

申请号：US17174276

申请日：2021-02-11

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yoshimasa YOSHIOKA ,  Hiroki IMAEDA ,  Shinji OTANI

IPC: H01F27/28 ,  H01F27/255 ,  H01F27/29 ,  H01F41/04 ,  H01F41/02

Abstract: An inductor component including a magnetic layer in which a magnetic metal powder is dispersedly present in a base material made of an insulation material and an inductor wiring line laminated on a surface of the magnetic layer. The inductor wiring line includes an anchor portion extending from a main face of the inductor wiring line on a side of the magnetic layer and covering a surface of the magnetic metal powder in the magnetic layer.

公开(公告)号：US20210098195A1

公开(公告)日：2021-04-01

申请号：US17031971

申请日：2020-09-25

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Shinji OTANI ,  Hidehiko TANAKA

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

Abstract: A method for manufacturing a multilayer ceramic electronic component includes preparing a ceramic green sheet, forming a plurality of internal electrode patterns on a main surface of the ceramic green sheet, applying a ceramic paste above the main surface of the ceramic green sheet, stacking a plurality of the ceramic green sheets, pressing the plurality of stacked ceramic green sheets, and cutting the plurality of pressed ceramic green sheets. The ceramic paste at least partially overlaps end portions of the internal electrode patterns, and a stepped region is provided on the ceramic green sheet. When cutting the ceramic green sheets in a first direction, the cutting is performed at a position of the stepped region between two of the internal electrode patterns adjacent to each other in a second direction.

公开(公告)号：US20200312519A1

公开(公告)日：2020-10-01

申请号：US16830170

申请日：2020-03-25

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Namiko SASAJIMA ,  Hiroki IMAEDA ,  Masami OKADO ,  Shinji OTANI ,  Tomohiro SUNAGA ,  Yoshimasa YOSHIOKA

IPC: H01F27/06 ,  H01F27/29 ,  H01F27/255

Abstract: An inductor component includes a base, an inductor device disposed in the base, and an external terminal serving as a line that is disposed on the base and that is electrically coupled to the inductor device. The external terminal includes a first metal film that is in contact with the base and that is electrically conductive, a second metal film disposed on a side of the first metal film opposite to the base, the second metal film having resistance to solder leaching, and a catalytic layer disposed between the first metal film and the second metal film. The first metal film includes a pore portion adjacent to the catalytic layer.

公开(公告)号：US20190066909A1

公开(公告)日：2019-02-28

申请号：US16173873

申请日：2018-10-29

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Shinji OTANI ,  Masaki TSUTSUMI ,  Yoshinori UEDA ,  Hayami KUDO

IPC: H01F27/29 ,  H01L41/047 ,  H01C7/00 ,  H01C1/14 ,  H01G4/40 ,  H01G4/33 ,  H01G4/252 ,  H01G4/236 ,  H01G4/232 ,  H01G4/008 ,  H01F41/02 ,  H01F27/28 ,  H01F27/255 ,  H01F17/04 ,  H01F17/00 ,  H01F1/03 ,  H01C17/28 ,  H01C7/18 ,  H05K1/16

Abstract: An electronic component includes a composite body made of a composite material of a resin material and a metal powder; and a metal film disposed on an outer surface of the composite body. The metal film is in contact with the resin material and the metal powder of the composite body, and an average particle diameter of crystals of the metal film contacting the resin material is 60% or more and 120% or less of an average particle diameter of crystals of the metal film contacting the metal powder.

公开(公告)号：US20170169930A1

公开(公告)日：2017-06-15

申请号：US15369073

申请日：2016-12-05

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hayami KUDO ,  Akinori HAMADA ,  Shinji OTANI

IPC: H01F27/28 ,  H01F27/32 ,  H01F27/255 ,  H01F27/02 ,  H01F27/06

CPC classification number: H01F17/0013 ,  H01F17/04 ,  H01F27/292 ,  H01F2017/048

Abstract: An inductor component has a plurality of layers of spiral wirings a magnetic composite body directly or indirectly covering the plurality of layers of spiral wirings and made of a composite material of a resin and a metal magnetic powder with an average particle diameter of 5 μm or less an internal electrode embedded in the magnetic composite body with an end surface exposed from an outer surface of the magnetic composite body, the internal electrode being electrically connected to the spiral wirings, and an external terminal disposed on the outer surface of the magnetic composite body and electrically connected to the internal electrode.