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公开(公告)号：US12279373B2
公开(公告)日：2025-04-15
申请号：US18499877
申请日：2023-11-01
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yoshimasa Yoshioka , Kouji Yamauchi
Abstract: A DC/DC converter component has a reduced mounting area and includes an inductor component; a semiconductor integrated circuit including a switch circuit connected to the inductor component, and a control circuit that controls the switch circuit; and a package substrate, to which the semiconductor integrated circuit is mounted, having a mounting face that opposes an other substrate when the package substrate is mounted to the other substrate. The inductor component includes an element body, and a plurality of inductor wiring lines, each extending in the element body and in parallel with a main face of the element body. A value of inductance of a second inductor wiring line is 10% or more greater than a value of inductance of a first inductor wiring line. The inductor component has a dimension equal to or less than 0.25 millimeters in a thickness direction, and is mounted to the package substrate.
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公开(公告)号：US12237767B2
公开(公告)日：2025-02-25
申请号：US17517584
申请日：2021-11-02
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yoshimasa Yoshioka , Naoya Noo
Abstract: When an inductor component is adopted as an inductor for a DC-DC converter, high efficiency is achieved at a light load, and a large current is also handled. An inductor component includes a body containing metal magnetic powder containing an iron element, and an inductor provided in the body and having both ends exposed from the body. In a DC superposition characteristic curve of the inductor, a first steady region and a second steady region exist as a steady region, and a transition region exists between the first steady region and the second steady region.
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公开(公告)号：US12205752B2
公开(公告)日：2025-01-21
申请号：US17243505
申请日：2021-04-28
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yoshimasa Yoshioka , Tatsuya Sasaki
IPC: H01F27/29 , H01F27/255 , H01F27/28 , H01F41/02 , H01F41/06
Abstract: In an inductor component, an inductor wire is formed inside a main body. The inductor wire has a circular columnar body extending in the height direction. An end surface of the inductor wire at a first end in the wire extending direction serves as a first external terminal and is exposed at a first terminal surface of the main body. The first external terminal is exposed only at the first terminal surface. An end surface of the inductor wire at a second end in the wire extending direction serves as a second external terminal and is exposed at a second terminal surface of the main body. The second external terminal is exposed only at the second terminal surface.
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公开(公告)号：US12154709B2
公开(公告)日：2024-11-26
申请号：US17350624
申请日：2021-06-17
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yoshimasa Yoshioka , Tatsuya Funaki , Shunsuke Abe
Abstract: A surface-mount passive component includes a passive element and a size conversion unit on which the passive element is mounted. The size conversion unit has a body, a plurality of first external terminals each of which is exposed on an element mount surface of the body and is electrically connected to a corresponding one of passive element external terminals of the passive element, a plurality of second external terminals exposed on a board-side mount surface of the body, and connection wires that electrically connect the first external terminals and the second external terminals. An area of the board-side mount surface is larger than an area of a first main surface of the passive element, and a total area of the plurality of second external terminals on the board-side mount surface is larger than a total area of the passive element external terminals on the first main surface.
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公开(公告)号：US12087493B2
公开(公告)日：2024-09-10
申请号：US17246584
申请日：2021-04-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yoshimasa Yoshioka
CPC classification number: H01F27/2828 , H01F27/24 , H01F27/29 , H01F41/06
Abstract: An inductor component is configured such that a lower surface of a first magnetic layer serves as a first terminal surface. A first inductor wire is disposed in the first magnetic layer. The first inductor wire is cylindrical and extends in an up-down direction. A boundary portion is connected to a first internal terminal of the first inductor wire. An upper surface of a second magnetic layer serves as a second terminal surface. A second inductor wire is disposed in the second magnetic layer. The second inductor wire is columnar and extends in the up-down direction. A second internal terminal of the second inductor wire is connected to the boundary portion. The boundary portion serves as a physical boundary between the first inductor wire and the second inductor wire.
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Patent Agency Ranking
公开(公告)号：US12020852B2
公开(公告)日：2024-06-25
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 , H01F27/255 , H01F27/28
CPC classification number: H01F27/292 , H01F27/255 , H01F27/2804 , H01F2027/2809
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.
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公开(公告)号：US11908606B2
公开(公告)日：2024-02-20
申请号：US17076245
申请日：2020-10-21
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yoshimasa Yoshioka , Naoya Noo
IPC: H01F27/28 , H01F41/02 , H01F41/04 , H01F27/255
CPC classification number: H01F27/2804 , H01F27/255 , H01F41/0246 , H01F41/041 , Y10T428/32
Abstract: An inductor array component including an element body and a first straight wiring line and a second straight wiring line that are arranged on the same plane inside the element body. The element body includes a first region that is located on a first side of the first straight wiring line or the second straight wiring line in a normal direction that is normal to the plane, a second region that is located on a second side of the first straight wiring line or the second straight wiring line in the normal direction that is normal to the plane, and a third region that is located between the first straight wiring line and the second straight wiring line. The greater one out of the magnetoresistance of the first region and the magnetoresistance of the second region is greater than or equal to the magnetoresistance of the third region.
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公开(公告)号：US11804325B2
公开(公告)日：2023-10-31
申请号：US16995103
申请日：2020-08-17
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 , H01F41/02 , H01F41/04
CPC classification number: H01F27/2804 , H01F27/255 , H01F41/0246 , H01F41/041 , H01F2027/2809
Abstract: An electronic component includes a composite body composed of a composite material of a resin and a magnetic metal powder and a metal film disposed on an outer surface of the composite body. The magnetic metal powder contains Fe. The metal film mainly contains Cu, further contains Fe, and is in contact with the resin and the magnetic metal powder.
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公开(公告)号：US11783994B2
公开(公告)日：2023-10-10
申请号：US17076142
申请日：2020-10-21
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yoshimasa Yoshioka , Akinori Hamada
CPC classification number: H01F27/324 , H01F17/0013 , H01F17/04 , H01F27/2823 , H01F27/292 , H01F2017/0066 , H01F2017/048
Abstract: An inductor array component includes a substantially flat plate-shaped main body including a magnetic layer having resin and metal magnetic powder contained in the resin, a first inductor wiring and a second inductor wiring disposed on the same plane in the main body and adjacent to each other, and a plurality of first vertical wirings extending in a first direction of a normal direction with respect to the plane so as to penetrate through inside of the main body and being exposed on a side of a first main surface of the main body. Also, the inductor array component includes a plurality of second vertical wirings extending in a second direction of the normal direction with respect to the plane so as to penetrate through the inside of the main body and being exposed on a side of a second main surface of the main body.
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公开(公告)号：US11694839B2
公开(公告)日：2023-07-04
申请号：US16890947
申请日：2020-06-02
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Namiko Sasajima , Hiroki Imaeda , Masami Okado , Shinji Otani , Tomohiro Sunaga , Yoshimasa Yoshioka
CPC classification number: H01F27/292 , H01F17/0013
Abstract: A base includes a main body and a multilayer metal film disposed on the main body. The multilayer metal film includes a first metal film disposed on the main body, the first metal film having conductivity, second metal film on the first metal film and above the main body, the second metal film having resistance to solder leaching, and a third metal film on the second metal film, the third metal film having wettability. The third metal film includes an inwardly extended portion extending between the second metal film and the main body.
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