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公开(公告)号：US20220336345A1
公开(公告)日：2022-10-20
申请号：US17859245
申请日：2022-07-07
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Masatomi HARADA , Takeshi KAGAWA , Hiroshi MATSUBARA , Nobuyoshi ADACHI
IPC: H01L23/522 , H01G4/08 , H01L23/28 , H01L23/528
Abstract: A semiconductor device having a semiconductor substrate with first and second main surfaces that face one another in a thickness direction, and a circuit layer disposed on the first main surface. The circuit layer has a first electrode layer on the semiconductor substrate, a dielectric layer on the first electrode layer, a second electrode layer on the dielectric layer, and first and second outer electrodes electrically connected to the first and second electrode layers, respectively. The semiconductor substrate has a first end-portion region in which the circuit layer is not provided on the semiconductor substrate and on the side of the first end surface. In the first end-portion region, a first exposed portion is provided that is exposed between the first main surface and the first end surface.
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公开(公告)号：US20210193901A1
公开(公告)日：2021-06-24
申请号：US17192940
申请日：2021-03-05
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Seiji UMEZAWA , Shinsuke IKEUCHI , Fumiya KUROKAWA , Nobuyoshi ADACHI , Yoichi MOCHIDA
IPC: H01L41/09 , H01L41/047 , H01L41/187
Abstract: A piezoelectric transducer includes beam portions supported by a base portion at an end portion and extending in a direction away from the base portion above the base portion. Each beam portion includes a piezoelectric layer, an upper electrode layer on an upper side of the piezoelectric layer, and a lower electrode layer facing at least a portion of the upper electrode layer with the piezoelectric layer interposed therebetween. A fixing portion is disposed on the beam portion to sandwich the end portion of each beam portion between the fixing portion and the base portion. The fixing portion overlaps at least a portion of the base portion in an up-down direction, and extends to protrude from the base portion in an extending direction of the beam portion.
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公开(公告)号：US20250167676A1
公开(公告)日：2025-05-22
申请号：US19027470
申请日：2025-01-17
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Koshi HIMEDA , Kazuki ITOYAMA , Kenji NISHIYAMA , Akitomo TAKAHASHI , Nobuyoshi ADACHI
Abstract: A DCDC converter module is provided that includes an insulating substrate having first and second surfaces; and a circuit section at the insulating substrate. The circuit section includes a switching element and an output filter connected to the switching element in series from an input end to an output. The output filter has an output inductor, and first and second output capacitors connected in parallel to each other and having different capacitance. A current path from the switching element to the output end of the circuit section penetrates through the insulating substrate from the first surface to the second surface. The first and second output capacitors are different from each other in position in a thickness direction and are arranged to the current path. An inductor component is between a plus terminal of the first output capacitor and a plus terminal of the second output capacitor.
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公开(公告)号：US20240379280A1
公开(公告)日：2024-11-14
申请号：US18779712
申请日：2024-07-22
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Nobuyoshi ADACHI , Koshi HIMEDA , Yoshimitsu USHIMI , Kenji NISHIYAMA
Abstract: An inductor component includes an element body including a magnetic layer, a first coil and a second coil that are disposed adjacent to each other on a plane in the element body, and a first connection conductor that connects the first coil and the second coil. A first axis of the first coil and a second axis of the second coil are disposed parallel in a first direction that is orthogonal to the plane. A shortest distance between the first coil and the second coil is equal to or greater than a larger wiring width of a first wiring width of the first coil and a second wiring width of the second coil, and is equal to or less than an average value of a first diameter of a first smallest circle enclosing the first coil and a second diameter of a second smallest circle enclosing the second coil.
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公开(公告)号：US20240355533A1
公开(公告)日：2024-10-24
申请号：US18762018
申请日：2024-07-02
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yoshimitsu USHIMI , Koshi HIMEDA , Kenji NISHIYAMA , Hidehiko SASAKI , Nobuyoshi ADACHI
CPC classification number: H01F27/2823 , H01F27/24 , H01F27/324
Abstract: A coil that includes: a coil wire spirally wound along an axis; and an insulator that covers at least a portion of the coil wire. In a cross section including the axis, the insulator includes: a first insulation portion in contact with a first end surface of the coil wire on a first side in a direction of the axis of the coil wire, a second insulation portion in contact with a second end surface of the coil wire on a second side in the direction of the axis of the coil wire, and a third insulation portion between adjacent turns in the direction of the axis of the coil wire. At least one of a first thickness of the first insulation portion and a second thickness of the second insulation portion is thinner than half of a third thickness of the third insulation portion.
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Patent Agency Ranking
公开(公告)号：US20230054863A1
公开(公告)日：2023-02-23
申请号：US18045530
申请日：2022-10-11
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Nobuyoshi ADACHI
Abstract: A semiconductor device is provided having a semiconductor substrate with a circuit layer provided on a first main surface of the semiconductor substrate. The circuit layer includes a first and second electrode layers with a dielectric layer disposed therebetween, a first outer electrode electrically connected to the first electrode layer and a second outer electrode electrically connected to the second electrode layer. When the circuit layer is viewed from above, the first electrode layer has a first facing portion facing the second electrode layer in the thickness direction and a first non-facing portion not facing the second electrode layer, and the second electrode layer has a second facing portion facing the first electrode layer in the thickness direction and a second non-facing portion not facing the first electrode layer.
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公开(公告)号：US20240380324A1
公开(公告)日：2024-11-14
申请号：US18779985
申请日：2024-07-22
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yoshimitsu USHIMI , Koshi HIMEDA , Nobuyoshi ADACHI , Kenji NISHIYAMA
IPC: H02M3/158
Abstract: A voltage converter is provided that includes a variable inductor device that is disposed between an input line and an output line, a switching device that is disposed between the input line and the variable inductor device, a capacitor that is disposed between the output line and a ground line and a control circuit configured to switch an inductance value of the variable inductor device and to switch a control mode of the switching device according to a load current in the output line. The control circuit is configured to set the inductance value of the variable inductor device to a first value when the load current is less than a threshold value and set the inductance value of the variable inductor device to a second value that is smaller than the first value when the load current is higher than the threshold value.
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公开(公告)号：US20240355537A1
公开(公告)日：2024-10-24
申请号：US18758276
申请日：2024-06-28
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yoshimitsu USHIMI , Koshi HIMEDA , Kenji NISHIYAMA , Hidehiko SASAKI , Nobuyoshi ADACHI
CPC classification number: H01F27/292 , H01F17/0013 , H01F27/324 , H01F2017/0073
Abstract: An inductor component includes an element body having a magnetic material, and a coil that is disposed inside the element body. The coil includes a coil wire that is spirally wound along an axis with a first end of the coil wire at a positive side of the axis and a second end of the coil wire at a negative side of the axis. At least one of a first end surface of the first end of the coil wire and a second end surface of the second end of the coil wire includes a recess, and a portion of the element body is located inside the recess.
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公开(公告)号：US20240355527A1
公开(公告)日：2024-10-24
申请号：US18761630
申请日：2024-07-02
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kenji NISHIYAMA , Yoshimitsu USHIMI , Koshi HIMEDA , Nobuyoshi ADACHI
IPC: H01F27/255 , H01F17/00 , H01F17/04
CPC classification number: H01F27/255 , H01F17/0006 , H01F17/04 , H01F2017/0066 , H01F2017/048
Abstract: A package substrate that includes: an inductor layer having a magnetic body and inductor wires. The magnetic body includes a first magnetic layer and a second magnetic layer on at least one main surface of the first magnetic layer. The inductor wires are in the first magnetic layer and include a first wire and a second wire adjacent to each other and magnetically coupled. The second magnetic layer overlaps the first wire and the second wire in a thickness direction. The second magnetic layer has anisotropic magnetic permeability in which magnetic permeability in a main surface direction differs from the thickness direction. The magnetic permeability of the second magnetic layer in the main surface direction is higher than in the thickness direction. The magnetic permeability of the second magnetic layer in the main surface direction is higher than magnetic permeability of the first magnetic layer in a main surface direction.
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公开(公告)号：US20210202824A1
公开(公告)日：2021-07-01
申请号：US17205062
申请日：2021-03-18
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Fumiya KUROKAWA , Shinsuke IKEUCHI , Yoichi MOCHIDA , Seiji UMEZAWA , Nobuyoshi ADACHI , Yutaka KISHIMOTO
IPC: H01L41/09 , H01L41/053 , H01L41/113 , H01L41/187
Abstract: A piezoelectric transducer includes beam portions each with a fixed end portion and extending in a direction away from the fixed end portion. A base portion is connected to the fixed end portion of each of the beam portions. The beam portions extends in a same plane, and respective extending directions of at least two beam portions are different from each other. The beam portions each include a single crystal piezoelectric layer having a polarization axis in a same direction, an upper electrode layer, and a lower electrode layer. A polarization axis has a polarization component in the plane. An axial direction of an orthogonal axis that is orthogonal to the polarization axis and extends in the above-described plane intersects with an extending direction of each of the plurality of beam portions.
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