公开(公告)号：US20240203655A1

公开(公告)日：2024-06-20

申请号：US18586825

申请日：2024-02-26

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Seiji HIDAKA ,  Atsutaka MORI ,  Yukihiro FUJITA

IPC: H01G4/232 ,  G06F30/3323 ,  H01G4/30

CPC classification number: H01G4/232 ,  G06F30/3323 ,  H01G4/30

Abstract: A method for creating an equivalent circuit model of a multi-terminal capacitor including staggered positive and negative outer electrode terminals includes measuring S parameters of the multi-terminal capacitor, deriving a total impedance of the multi-terminal capacitor based on measured S parameter measurement values, creating a two-terminal equivalent circuit model from the derived total impedance of the multi-terminal capacitor, deriving a unit-cell equivalent circuit model from the created two-terminal equivalent circuit model, creating a three-dimensional grid topology by combining the derived unit-cell equivalent circuit model and an equivalent circuit model of a parasitic component including capacitive and inductive circuit elements, and setting terminals of the multi-terminal capacitor at nodes in the created three-dimensional grid topology.

公开(公告)号：US20230360854A1

公开(公告)日：2023-11-09

申请号：US18220896

申请日：2023-07-12

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yukihiro FUJITA ,  Yohei YAMAGUCHI ,  Seiji HIDAKA

IPC: H01G4/236 ,  H01G4/30 ,  H01G4/224 ,  H01G4/008 ,  H01G4/12 ,  H01G4/232

CPC classification number: H01G4/236 ,  H01G4/30 ,  H01G4/224 ,  H01G4/008 ,  H01G4/1218 ,  H01G4/1236 ,  H01G4/232

Abstract: A multilayer ceramic capacitor includes a capacitor body, first and second via-conductors, first and second extended electrode portions, first and second outer electrodes, and an insulative resin. The capacitor body includes first and second inner electrodes. The first and second via-conductors are inside the capacitor body, and are respectively electrically connected to the first and second inner electrodes. The first and second extended electrode portions are respectively electrically connected to the first and second via-conductors. The first and second extended electrode portions are located on an outer surface of the capacitor body so as to extend to locations different from locations at which the first and second extended electrode portions are connected to the first and second via-conductors. The first and second outer electrodes are respectively electrically connected to the first and second extended electrode portions.

公开(公告)号：US20210082625A1

公开(公告)日：2021-03-18

申请号：US17007022

申请日：2020-08-31

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yukihiro FUJITA ,  Kazuhiro TABATA ,  Shunsuke ABE ,  Takayuki OKADA

IPC: H01G4/30 ,  H01G4/012 ,  H01G4/12 ,  H01G2/02

Abstract: A multilayer capacitor includes a capacitor main body including dielectric layers, first inner electrodes, and second inner electrodes that are laminated together, first outer electrodes, second outer electrodes, first via conductors that electrically connect the respective first outer electrodes to the first inner electrodes, and second via conductors that electrically connect the respective second outer electrodes to the second inner electrodes. Through holes are provided in the second inner electrodes, and the first via conductors pass through the through holes. Through holes are provided in the first inner electrodes, and the second via conductors pass through the through holes. The first outer electrodes and the second outer electrodes are not provided on the first principal surface of the capacitor main body and provided only on its second principal surface.

公开(公告)号：US20180358179A1

公开(公告)日：2018-12-13

申请号：US16104299

申请日：2018-08-17

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yukihiro FUJITA ,  Tadateru YAMADA

IPC: H01G4/30 ,  H05K1/18 ,  H01G4/248 ,  H01G4/12 ,  H01G4/012

CPC classification number: H01G4/30 ,  H01G4/012 ,  H01G4/12 ,  H01G4/129 ,  H01G4/248 ,  H05K1/183 ,  H05K2201/10015

Abstract: A monolithic ceramic capacitor includes a plurality of first and second inner electrodes in a ceramic body. A direction in which the first and second inner electrodes are stacked is a stacking direction, a direction perpendicular or substantially perpendicular to the stacking direction in the ceramic body is a length direction, and a direction perpendicular or substantially perpendicular to the stacking direction and the first direction is a width direction. The ceramic body includes an effective portion, a first outer layer portion, a second outer layer portion, a first side portion, and a second side portion. A ratio A/B is about 0.04 or less when a dimension of each of the first side portion and the second side portion in the width direction is A and a dimension of the effective portion in the stacking direction is B.

公开(公告)号：US20240234389A9

公开(公告)日：2024-07-11

申请号：US18404939

申请日：2024-01-05

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yukihiro FUJITA ,  Ryutaro YAMATO ,  Tatsuya FUNAKI ,  Yoshiaki SATAKE

IPC: H01L25/10 ,  H01L23/15 ,  H01L23/528 ,  H01L23/538 ,  H01L23/64

CPC classification number: H01L25/105 ,  H01L23/15 ,  H01L23/528 ,  H01L23/5384 ,  H01L23/642

Abstract: A composite electronic component includes circuit layers, each including an electronic component, that are laminated, first and second circuit layers, a ceramic electronic component between the first and second circuit layers and including via electrodes extending through a body mainly including ceramic and being exposed at a corresponding one of a main surface on one side and a main surface on another side, and a sealing resin covering at least the ceramic electronic component at a location between the first and second circuit layers. At least one electronic component included in each of the first and second circuit layers are electrically connected by the via electrodes.

公开(公告)号：US20240202414A1

公开(公告)日：2024-06-20

申请号：US18586780

申请日：2024-02-26

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Seiji HIDAKA ,  Atsutaka MORI ,  Yukihiro FUJITA

IPC: G06F30/367 ,  G06F119/06

CPC classification number: G06F30/367 ,  G06F2119/06

Abstract: A method for creating an equivalent circuit model of a multi-terminal capacitor including staggered positive and negative outer electrode terminals includes measuring S parameters of the multi-terminal capacitor, deriving a total impedance of the multi-terminal capacitor based on S-parameter measurement values, creating a two-terminal equivalent circuit model from the derived total impedance of the multi-terminal capacitor, deriving a unit-cell equivalent circuit model from the created two-terminal equivalent circuit model, creating a two-dimensional grid topology by combining the derived unit-cell equivalent circuit model and a parasitic-component equivalent circuit model, and setting terminals of the multi-terminal capacitor at nodes in the created two-dimensional grid topology.

公开(公告)号：US20240136342A1

公开(公告)日：2024-04-25

申请号：US18404939

申请日：2024-01-05

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yukihiro FUJITA ,  Ryutaro YAMATO ,  Tatsuya FUNAKI ,  Yoshiaki SATAKE

IPC: H01L25/10 ,  H01L23/15 ,  H01L23/528 ,  H01L23/538 ,  H01L23/64

CPC classification number: H01L25/105 ,  H01L23/15 ,  H01L23/528 ,  H01L23/5384 ,  H01L23/642

Abstract: A composite electronic component includes circuit layers, each including an electronic component, that are laminated, first and second circuit layers, a ceramic electronic component between the first and second circuit layers and including via electrodes extending through a body mainly including ceramic and being exposed at a corresponding one of a main surface on one side and a main surface on another side, and a sealing resin covering at least the ceramic electronic component at a location between the first and second circuit layers. At least one electronic component included in each of the first and second circuit layers are electrically connected by the via electrodes.

公开(公告)号：US20180061580A1

公开(公告)日：2018-03-01

申请号：US15792800

申请日：2017-10-25

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yukihiro FUJITA ,  Tadateru YAMADA

IPC: H01G4/30 ,  H01G4/012 ,  H01G4/12 ,  H01G4/248 ,  H05K1/18

CPC classification number: H01G4/30 ,  H01G4/012 ,  H01G4/12 ,  H01G4/129 ,  H01G4/248 ,  H05K1/183 ,  H05K2201/10015

Abstract: A monolithic ceramic capacitor includes a plurality of first and second inner electrodes in a ceramic body. A direction in which the first and second inner electrodes are stacked is a stacking direction, a direction perpendicular or substantially perpendicular to the stacking direction in the ceramic body is a length direction, and a direction perpendicular or substantially perpendicular to the stacking direction and the first direction is a width direction. The ceramic body includes an effective portion, a first outer layer portion, a second outer layer portion, a first side portion, and a second side portion. A ratio A/B is about 0.04 or less when a dimension of each of the first side portion and the second side portion in the width direction is A and a dimension of the effective portion in the stacking direction is B.

公开(公告)号：US20160093439A1

公开(公告)日：2016-03-31

申请号：US14851114

申请日：2015-09-11

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yukihiro FUJITA ,  Tadateru YAMADA ,  Hirobumi ADACHI

IPC: H01G4/228 ,  H01G4/005 ,  H01G4/30

CPC classification number: H01G4/228 ,  H01G2/06 ,  H01G4/005 ,  H01G4/30

Abstract: An electronic component includes an electronic element including two outer electrodes on surfaces thereof and a board terminal including a board main body and two mounting electrodes. The board main body has electrical insulating properties and a first principal surface. The two mounting electrodes are disposed on the first principal surface and electrically coupled to the two outer electrodes, respectively. The electronic element is mounted on the first principal surface side. The two outer electrodes are partially disposed outside an outer edge of the board terminal when viewed from the first principal surface side. The height from an end of each of the two outer electrodes opposite the board terminal to an end of the board terminal opposite the electronic element is not greater than a larger dimension of the width of the electronic element and the width of the board terminal.

Abstract translation: 电子部件包括在其表面上包括两个外部电极的电子元件和包括板主体和两个安装电极的板端子。 板主体具有电绝缘性能和第一主表面。 两个安装电极分别设置在第一主表面上并电耦合到两个外部电极。 电子元件安装在第一主表面侧。 当从第一主表面侧观察时，两个外电极部分地设置在电路板端子的外边缘的外侧。 与基板端子相对的两个外部电极的每一个的端部与电子元件相对的电路板端子的端部的高度不大于电子元件的宽度和电路板端子的宽度的较大尺寸。

公开(公告)号：US20240312722A1

公开(公告)日：2024-09-19

申请号：US18672063

申请日：2024-05-23

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yukihiro FUJITA ,  Ryutaro YAMATO

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

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

Abstract: A multilayer ceramic capacitor includes a capacitor body including dielectric layers and first and second inner electrodes that are laminated, a first via conductor inside the capacitor body and electrically connected to the first inner electrodes, and a second via conductor inside the capacitor body and electrically connected to the second inner electrodes. In a lamination direction in which the dielectric layers, the first inner electrodes, and the second inner electrodes are laminated, a dimension of the multilayer ceramic capacitor is the same or substantially the same as the dimension of the capacitor body.