Murata Manufacturing Co., Ltd.

Akinori Hamada

Yoshimasa Yoshioka

Shinji Yasuda

Hayami Kudo

Ryuichiro Tominaga

Kenji Nishiyama

Yoshinori Taguchi

Koichi Yamaguchi

Shinya Hirai

Atsuo Hirukawa

Shinji Otani

Tomohiro Kido

Isamu Miyake

Ryo Okura

Keisuke Kunimori

Toshiyuki Nakaiso

Kouji Yamauchi

Hiroshi Kawai

Masaki Kitajima

Makoto Inai

Kazutaka Mukaiyama

Souko Fukahori

Naoto Yatani

Koki Okamura

Daisuke Kurafuji

An inductor component comprising an element body including a first and second magnetic layers that contain a metal magnetic powder and that are laminated along a first direction, a spiral wiring disposed between the first and second magnetic layers, a vertical wiring connected to the spiral wiring and extending in the first direction to penetrate the element body and an external terminal connected to the vertical wiring and exposed on a first principal surface of the element body orthogonal to the first direction. The spiral wiring is disposed on a first plane orthogonal to the first direction and includes a pad part to which the vertical wiring is connected, a spiral part extending from the pad part on the first plane, and a lead-out part extending from the pad part on the first plane and exposed from a side surface of the element body parallel to the first direction.

Inductor component and method of manufacturing inductor component

An inductor component comprising a spiral wiring wound on a plane; first and second magnetic layers 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 to penetrate at least the inside of the first magnetic layer; and an external terminal disposed on at least a surface of the first magnetic layer to cover an end surface of the vertical wiring. The first magnetic layer is larger than the second magnetic layer in terms of the area of the external terminal viewed in the normal direction, and when A is the thickness of the first magnetic layer and B is the thickness of the second magnetic layer, A/((A+B)/2) is from 0.6 to 1.6.

Inductor component

An inductor component comprising a spiral wiring wound on a plane; a first magnetic layer and a second magnetic layer located at positions sandwiching the spiral wiring from both sides in a normal direction relative to the plane on which the spiral wiring is wound; a vertical wiring extending from the spiral wiring in the normal direction to pass through the first magnetic layer; and an external terminal disposed on a surface of the first magnetic layer to connect an end surface of the vertical wiring. The first magnetic layer has magnetic permeability lower than that of the second magnetic layer.

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.

Inductor array component and inductor array component built-in substrate

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 Rof 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≤R≤T/10 . . . Formula (1).

Inductor component and inductor component embedded substrate

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.

Coil component and switching regulator

An inductor component includes an element body including a magnetic layer containing a resin and a magnetic powder; a coil wiring line arranged inside the element body; and an insulating coating film covering the coil wiring line and not including a magnetic material. In a cross section perpendicular to an extension direction of the coil wiring line, a top surface thickness of a part of the insulating coating film covering the top surface of the coil wiring line and a side surface thickness of parts of the insulating coating film covering side surfaces of the coil wiring line are less than or equal to 10 μm, and a corner thickness of parts of the insulating coating film that cover corners of the coil wiring line interposed between the top surface and the side surfaces is at least half of the top surface thickness and/or the side surface thickness.

An inductor component includes a composite body that includes a plurality of composite layers each including a composite material of an inorganic filler and a resin; and a plurality of spiral wires that each are stacked on the composite layer, the spiral wires each being covered with the other composite layer. The average particle diameter of the inorganic filler is equal to or smaller than 5 μm, the wire pitch of the spiral wires is equal to or smaller than 10 μm, and the interlayer pitch between adjacent spiral wires is equal to or smaller than 10 μm.

Inductor component, package component, and switching regulator

An inductor component includes a base body, a first coil line and a second coil line, a first substantially columnar line and a second substantially columnar line, and a third substantially columnar line and a fourth substantially columnar line. The first substantially columnar line is located closer to the third substantially columnar line than the fourth substantially columnar line. A minimum distance X1 between the first substantially columnar line and the third substantially columnar line is shorter than a minimum distance Y between a first portion of the first coil line and a second portion of the second coil line.

An inductor component comprising an insulating layer containing no magnetic substance, a spiral wiring formed on a first principal surface of the insulating layer and wound on the first principal surface, and a magnetic layer in contact with at least a portion of the spiral wiring.

Inductor component and method of manufacturing same

An inductor component comprising a first magnetic layer, a spiral wiring disposed on the first magnetic layer, and a second magnetic layer covering the spiral wiring. The first magnetic layer and the second magnetic layer contain a magnetic powder and a resin containing the magnetic powder, and the spiral wiring includes a spiral-shaped first conductor layer and a second conductor layer disposed on the first conductor layer and shaped along the first conductor layer.

An inductor component comprises an element body; first and second inductors in the body; first and second columnar wirings in the body with end surfaces exposed from a first principal surface of the body and electrically connected to the first inductor; third and fourth columnar wirings in the body with end surfaces exposed from the first principal surface and electrically connected to the second inductor; first through fourth external terminals contacting the end surfaces of the first through fourth columnar wirings, respectively; and an insulating film on the first principal surface covering a portion of the end surface of the first and third columnar wiring not contacting the first and third terminals, respectively. The first terminal is closer to the third terminal than the fourth terminal, and a shortest distance between the first and third terminals is longer than a shortest distance between the first and third columnar wirings.

An inductor component comprising a magnetic layer containing a magnetic powder and a resin containing the magnetic powder, a first spiral wiring and a second spiral wiring disposed on the same plane in the magnetic layer and adjacent to each other, and an insulating layer disposed between the first spiral wiring and the second spiral wiring and containing no magnetic substance. The first spiral wiring includes a first side surface facing the second spiral wiring, and at least a portion of the first side surface is in contact with the magnetic layer.

Growing community of inventors

Nagaokakyo, Japan

Akinori Hamada