Taiyo Yuden Co., Ltd.

Naoya Terauchi

Takayuki Arai

Tomoo Kashiwa

Akihisa Matsuda

Daisuke Yamaguchi

Masanori Nagano

Takashi Nakajima

Shinsuke Takeoka

Natsuko Sato

Atsuko Kasahara

Shuichi Machida

An inductor array includes a magnetic base body having first and second surfaces opposed to each other and a third surface connecting between the first and second surfaces, and also includes first and second end internal conductors having the same shape. The first end internal conductor includes first-end first conductor portions and fewer first-end second conductor portions, alternating with and being connected to each other. The second end internal conductor includes second-end first conductor portions and fewer second-end second conductor portions, alternating with and being connected to each other. The first-end first conductor portions are positioned away from the first surface by a first end distance in a reference axis direction and face the first surface. The second-end second conductor portions are positioned away from the second surface by a second end distance less than the first end distance in the reference axis direction and face the second surface.

Inductor array, circuit board, and electronic device

An inductor array of the invention includes a magnetic base body, a first internal conductor within the base body, and a second internal conductor adjacent to the first internal conductor. The first and second internal conductors are arranged along a reference axis. The base body includes an inter-conductor region between the first and second internal conductors. The inter-conductor region has a first section cut along a reference plane including the reference axis, and a first reference axis direction dimension of the first section in the reference axis direction may be less than double a shortest distance between the first internal conductor and a surface of the base body in the reference plane. A first aspect ratio of the first section, which is a ratio of a first orthogonal direction dimension in a direction orthogonal to the reference axis to the first reference axis direction dimension, may be less than 1.

Inductor array

A magnetic coupling coil component according to one or more embodiments of the invention includes a magnetic base body, a first and second conductors disposed in a through-hole of the magnetic base body, and a non-magnetic portion disposed between the first and second conductors and having a relative magnetic permeability smaller than that of the magnetic base body. The magnetic base body has a mounting surface and the through-hole connecting first and second openings in the mounting surface. One end the first conductor is exposed through the first opening and the other end is exposed through the second opening. The second conductor is disposed at a position spaced away from the first conductor toward inside of the magnetic base body and is opposed to the first conductor. One end of the second conductor is exposed through the first opening and the other end is exposed through the second opening.

Magnetic coupling coil component

An inductor according to one embodiment includes: a base body having a mounting surface, a top surface, and a first end surface; first and second external electrodes provided to the mounting surface and spaced from each other; and an conductor disposed inside the base body. One end of the conductor is exposed from the mounting surface and connected to the first external electrode, and the other end of the conductor is exposed from the mounting surface and connected to the second external electrode. The base body is partitioned into a first region and a second region, the first region being enclosed by the conductor and the mounting surface, and a ratio of an area of the second region to an area of the first region is 0.95 to 1.0. The conductor contains a conductive material having a higher electric conductivity than a material of the first external electrode.

Inductor

An inductor according to one embodiment of the present invention includes: a base body having a mounting surface, a top surface, and a first end surface; first and second external electrodes attached to the mounting surface and spaced from each other; and an internal conductor disposed in the base body and extending linearly from the first external electrode to the second external electrode. One end of the internal conductor is exposed from the mounting surface and connected to the first external electrode, and the other end of the internal conductor is exposed from the mounting surface and connected to the second external electrode. The base body is partitioned into a first region and a second region, the first region being enclosed by the internal conductor and the mounting surface, and a ratio of an area of the second region to an area of the first region is 0.95 to 1.0.

A coil componentincludes a base bodyhaving a mounting surface, a coil conductorwound around a coil axis X through a plurality of layers in the base body, where the coil conductorhas a first endand a second end, external electrodesandprovided on the mounting surface, a lead-out conductorconnecting the first endof the coil conductorand the external electrode, and a lead-out conductorconnecting the second endof the coil conductorand the external electrode. At least a portion of the lead-out conductoris positioned within a first region Rinside the coil conductorin a radial direction when seen in a direction of the coil axis X.

Laminated coil component

An inductance element includes: an insulative substrate body of a rectangular solid shape having length dimension L, height dimension H, and width dimension W, where 1.5&#x2264;W/H; at least one internal conductor built in the substrate body and capable of making an electrical current flow therethrough in one uniform direction orthogonal to a cross-section of the substrate body; and a pair of external electrodes provided on the surface of the substrate body in a manner respectively connected to both ends of the internal conductor, so that the internal conductor can make an electrical current flow therethrough in the one uniform direction; wherein, in the cross-section of the substrate body, a rectangular internal conductor region having height dimension Eh and width dimension Ew surrounds the internal conductor in a manner contacting the outermost positioned portions of the internal conductor in the height and width directions, wherein Ew/Eh&#x3e;W/H.

Inductance element and electronic device

In an exemplary embodiment, a coil component includes: a base partcontaining a magnetic material; a flat coilembedded in the base part, formed by a wound coil conductorwhere an end partand an end partare located on the inner side and on the outer side of the windings, respectively; a lead conductorand a lead conductorconnected to the end partand the end part, respectively; an external electrodeand an external electrodeprovided on the surface of the base partand connected to the lead conductorand the lead conductor, respectively. The lead conductoris connected to the external electrodein an areaon the inner side of the flat coilas viewed from above in the axial direction of the flat coil

Coil component and electronic device

A magnetic coupling coil element in one embodiment includes a magnetic base body that includes an intermediate magnetic layer, a first magnetic layer disposed over the intermediate magnetic layer, and a second magnetic layer disposed under the intermediate magnetic layer; a first coil conductor provided in the first magnetic layer; and a second coil conductor provided in the second magnetic layer. The intermediate magnetic layer has a saturation magnetic flux density lower than saturation magnetic flux densities of the first magnetic layer and the second magnetic layer in a first region that overlaps with the first coil conductor and the second coil conductor in plan view.

Magnetic coupling coil element and method of manufacturing the same

A magnetic coupling coil component according to one embodiment of the present invention includes: an insulating layer; a first coil conductor embedded in the insulating layer, the first coil conductor having a first top coil surface and a first bottom coil surface; a second coil conductor embedded in the insulating layer, the second coil conductor having a second top coil surface and a second bottom coil surface; a first cover layer provided on a first surface of the insulating layer so as to be opposed to the first top coil surface; and a second cover layer provided on a second surface of the insulating layer opposite to the first surface so as to be opposed to the second bottom coil surface. At least one of the first cover layer and the second cover layer has a magnetic permeability higher than a magnetic permeability of the insulating layer.

A magnetic coupling coil component includes: a main body including a first region, a second region disposed on a top side of the first region, and a third region disposed on a bottom side of the first region; a top-side coil conductor provided in the second region of the main body and wound around a coil axis extending in a top-bottom direction; and a bottom-side coil conductor provided in the third region of the main body and wound around the coil axis. The top-side coil conductor includes a plurality of top-side conductive patterns, and the plurality of top-side conductive patterns include a first top-side conductive pattern which is positioned closest to the first region among the plurality of top-side conductive patterns, and a number of turns of the first top-side conductive pattern is larger than an average of numbers of turns of the plurality of top-side conductive patterns.

In an exemplary embodiment, a coil component includes: an element body partthat contains magnetic metal grains and nonmagnetic materials and has insulation property; and a coilembedded in the element body partand formed by a winding conductor. The element body parthas a main partand a low magnetic permeability partwhose relative permeability is lower than that of the main part; the coilhas a first surfaceand a second surfacerespectively representing surfaces positioned on opposite sides in the direction of the coil axis and intersecting the coil axis; and the low magnetic permeability partis provided between a first planeflush with the first surface, and a second planeflush with the second surface, in a manner away from the first planeand the second plane

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Tokyo, Japan

Naoya Terauchi