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公开(公告)号：US20240304374A1
公开(公告)日：2024-09-12
申请号：US18594110
申请日：2024-03-04
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yoshimasa YOSHIOKA , Kenji TOYOSHIMA , Katsufumi SASAKI
CPC classification number: H01F27/2828 , H01F27/006 , H01F27/022 , H01F27/29 , H01F27/327
Abstract: An inductor component includes an element body, an inductor wiring, and columnar wirings. The inductor wiring extends parallel to a planar main surface in the element body. The columnar wirings extend in a direction intersecting with the main surface. The inductor wiring includes a pair of pad portions at both end portions of the inductor wiring, and to which the columnar wiring is connected, and a wiring main body which connects the pair of pad portions to each other. The wiring main body includes a maximum point where a cross-sectional area of a cross section orthogonal to a center line of the wiring main body is the maximum and a minimum point where the cross-sectional area of the cross section orthogonal to the center line is the minimum. The cross-sectional area at the maximum point is two or more times greater than the cross-sectional area at the minimum point.
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公开(公告)号：US20240145150A1
公开(公告)日：2024-05-02
申请号：US18482528
申请日：2023-10-06
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kenji TOYOSHIMA , Yoshimasa YOSHIOKA , Keisuke KUNIMORI
CPC classification number: H01F17/0013 , H01F5/04 , H01F27/292
Abstract: An inductor component includes an element body. The element body includes an inductor wire extending parallel to a first principal surface of the element body, a plurality of columnar wires extending in a direction intersecting the first principal surface, and a plurality of outer electrodes exposed from the first principal surface. When viewed transparently in a direction orthogonal to the first principal surface, a first vector extending from a geometric center of at least one selected from a plurality of first-end columnar wires toward a geometric center of a first outer electrode connected to the first columnar wire is different from a second vector extending from a geometric center of at least one selected from a plurality of second-end columnar wires toward a geometric center of a second outer electrode connected to the second columnar wire.
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公开(公告)号：US20220301758A1
公开(公告)日：2022-09-22
申请号：US17653607
申请日：2022-03-04
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yoshimasa YOSHIOKA , Kouji Yamauchi
Abstract: An inductor component comprising an element body having first and second magnetic layers laminated in order along a first direction; an inductor wire on a plane orthogonal to the first direction between the first and second magnetic layers and including side surfaces facing a direction orthogonal to the first direction; and a side surface insulating part made of a non-magnetic material covering only a part of the side surfaces. The first and second magnetic layers each include a flat magnetic powder and a resin containing the magnetic powder. The first magnetic layer exists in a direction opposite to the first direction with respect to the inductor wire. The second magnetic layer exists in the first direction and in a direction orthogonal to the first direction. The side surface insulating part is made of a material that is the same as that of the resin of the second magnetic layer.
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公开(公告)号：US20220071012A1
公开(公告)日：2022-03-03
申请号：US17410353
申请日：2021-08-24
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：US20220059282A1
公开(公告)日：2022-02-24
申请号：US17399943
申请日：2021-08-11
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yoshimasa YOSHIOKA , Kouji YAMAUCHI
Abstract: A body of an inductor component includes a magnetic layer, a first insulating resin, a second insulating resin, and an insulating layer. First inductor wiring extends along a principal surface of the body, inside the magnetic layer. First vertical wiring is connected to an upper surface of a first pad of the first inductor wiring. An upper surface of the first vertical wiring is exposed without being obstructed by the principal surface. A first outer terminal is connected to the upper surface of the first vertical wiring and protrudes from the principal surface upward in a thickness direction. The first outer terminal includes a metal layer covering the upper surface of the first vertical wiring and a solder portion on an upper surface of the metal layer. An upper portion including a protruding distal end of the first outer terminal is the solder portion made of a tin alloy.
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Patent Agency Ranking
公开(公告)号：US20220037078A1
公开(公告)日：2022-02-03
申请号：US17389740
申请日：2021-07-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yoshimasa YOSHIOKA
Abstract: An inductor component includes an air core coil in which an air core inductor wire is provided in an air core body containing a non-magnetic material, and a magnetic core coil in which a magnetic core inductor wire is provided in a magnetic core body containing a magnetic material. The air core body and the magnetic core body are combined or integrated. A magnetic material content in a peripheral region around the air core inductor wire is lower than 50%. The magnetic material content in a peripheral region around the magnetic core inductor wire is higher than or equal to 50%.
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公开(公告)号：US20210193370A1
公开(公告)日：2021-06-24
申请号：US17196540
申请日：2021-03-09
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yoshimasa YOSHIOKA , Akinori HAMADA , Atsuo HIRUKAWA
Abstract: A coil component including 2N coils, N being an integer of two or more, wherein the 2N coils are configured to form N pairs, and wherein when coils other than a first coil and a second coil forming one of the N pairs are defined as the other coils, a magnetic coupling between the first coil and the second coil is stronger than a magnetic coupling between the first coil and each of the other coils.
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公开(公告)号：US20210074467A1
公开(公告)日：2021-03-11
申请号：US16930142
申请日：2020-07-15
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Ryuichiro TOMINAGA , Yoshimasa YOSHIOKA
Abstract: An inductor component that includes an element body; a coil wiring line that is arranged parallel to a first main surface of the element body inside the element body; and a first vertical wiring line and a second vertical wiring line that are buried inside the element body so that end surfaces thereof are exposed from the first main surface of the element body and that are electrically connected to the coil wiring line. In a first cross section that is perpendicular to a direction in which the coil wiring line extends and intersects the first vertical wiring line, a top surface of the coil wiring line contacts a bottom surface of the first vertical wiring line and the top surface of the coil wiring line is substantially shaped like a convex surface.
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公开(公告)号：US20210043367A1
公开(公告)日：2021-02-11
申请号：US16986173
申请日：2020-08-05
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yoshimasa YOSHIOKA , Kouji YAMAUCHI , Akinori HAMADA , Daisuke KURAFUJI
Abstract: An inductor component in which degradation of the insulation property, the inductance acquisition efficiency, and mechanical strength is suppressed. An inductor component includes a flat plate-shaped main body containing magnetic powder and a resin piece containing the magnetic powder; an inductor wire arranged in the main body; and an external terminal electrically connected to the inductor wire and exposed from a main surface of the main body. An average particle size X of the magnetic powder, a thickness T orthogonal to the main surface of the main body, and a first arithmetic mean roughness Ra1 of a part of a straight line on the main surface passing through the external terminal and excluding a part overlapping with the external terminal satisfying Formula (1): X/10≤Ra1≤T/10 . . . Formula (1).
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公开(公告)号：US20200373079A1
公开(公告)日：2020-11-26
申请号：US16991974
申请日：2020-08-12
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yoshimasa YOSHIOKA , Akinori HAMADA
Abstract: An inductor component including a spiral wiring wound into a planar shape. A first magnetic layer and a second magnetic layer are located at positions sandwiching the spiral wiring from both sides in a normal direction relative to the plane of the wound spiral wiring. A vertical wiring extending from the spiral wiring in the normal direction penetrates the inside of the first magnetic layer or the second magnetic layer.
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