Nitto-denko Corporation

Georgia Tech Research Corporation

Yoshihiro Furukawa

Keisuke Okumura

Hirofumi Ebe

Shinichi Inoue

Rao R Tummala

Keiji Takemura

Markondeya Raj Pulugurtha

Teng Sun

Himani Sharma

A mark-including inductor includes a sheet-shaped inductor including a plurality of wirings and a magnetic layer embedding the plurality of wirings, and a mark disposed at one side in a thickness direction of the inductor and/or formed in the magnetic layer.

Mark-including inductor and mark-including laminated sheet

An inductor includes a wire and a magnetic layer which has a via, having an inner peripheral surface. On a cross-section across the via, a first point and a second point are located at one side and the other side in a direction in which the first principal surface extends and are kept 50 μm away from a first edge on one side of the inner peripheral surface in the thickness direction, and a third point and a fourth point are located at one side and the other side in the extending direction and are kept 50 μm away from a second edge on the other side of the inner peripheral surface in the thickness direction. An area of a quadrangle having all four points as vertices and an area of the molten solid inside the quadrangle are obtained, along with a percent (S/S×100) of the area.

Inductor

A frame member-including inductor includes an inductor including a plurality of wirings, and a magnetic layer embedding the plurality of wirings, and a frame member in which the inductor is set.

Frame member-including inductor and frame member-including laminated sheet

An inductor includes a first wire and a second wire, a first magnetic layer containing magnetic particles having an approximately spherical shape, a second magnetic layer containing magnetic particles having an approximately flat shape, and a third magnetic layer containing magnetic particles having an approximately flat shape. The relative permeability of each of the second magnetic layer and the third magnetic layer is higher than the relative permeability of the first magnetic layer. A fourth surface of the first magnetic layer has a second concave portion. A sixth surface of the third magnetic layer has a fourth concave portion.

An inductor includes a wire, and a magnetic layer covering the wire. The wire includes a conducting line and an insulating layer. The magnetic layer contains an anisotropic magnetic particle and a binder. In a peripheral region of the wire, the magnetic layer includes an orientated region. The peripheral region is, in a cross-sectional view, a region from an outer surface of the wire to an outward distance of 1.5 times an average of the longest length and the shortest length from the center of gravity of the wire to the outer surface of the wire. The upper surface of the inductor has a protruding portion caused by the wire.

An inductor includes a wire, and a magnetic layer covering the wire. The wire includes a conducting line, and an insulating layer covering the conducting line. The magnetic layer includes a magnetic particle and a binder. In a peripheral region of the wire, a filling rate of the magnetic particle is 40% by volume or more. The peripheral region is a region of the magnetic layer traveling outwardly from an outer peripheral surface of the wire by 1.5 times an average of the longest length and the shortest length from the center of gravity C of the wire to an outer surface of the wire in a cross-sectional view.

An inductor includes a wire, and a magnetic layer covering the wire. The wire includes a conducting line, and an insulating layer. The magnetic layer contains an anisotropic magnetic particle and a binder. In a peripheral region of the wire, the magnetic layer includes an orientated region in which the anisotropic magnetic particle is orientated along the periphery of the wire. The peripheral region is, in a cross-sectional view, a region from an outer surface of the wire to an outward distance of 1.5 times an average of the longest length and the shortest length from the center of gravity of the wire to the outer surface of the wire. An upper surface and a lower surface of the inductor are flat.

An inductor includes a wire including a conducting line, and an insulating film disposed on an entire circumferential surface of the conducting line, and a magnetic layer embedding the wire. The magnetic layer contains a magnetic particle. The magnetic layer includes a first layer in contact with the circumferential surface of the wire, a second layer in contact with the surface of the first layer, . . . and the n-th layer (n is a positive number of 3 or more) in contact with the surface of the (n−1)th layer. In the two layers adjacent to each other in the magnetic layer, the relative magnetic permeability of the layer closer to the wire is lower than the relative magnetic permeability of the layer farther from the wire.

An inductor includes a wire having a generally circular shape in cross section, and the magnetic layer covering the wire, wherein the wire includes a conductive wire and an insulating layer covering the conductive wire, the magnetic layer contains anisotropic magnetic particles and a binder, and includes in a surrounding region of the wire within 1.5 times the radius of the wire, a first region in which the anisotropic magnetic particles are oriented along the circumferential direction of the wire, and a second region in which the anisotropic magnetic particles are oriented along the crossing direction that crosses the circumferential direction, or in which the anisotropic magnetic particles are not oriented.

A laminated sheet includes a sheet-shaped inductor including a plurality of wirings and a magnetic layer embedding the plurality of wirings, and a processing stability layer disposed on at least one surfacein a thickness direction of the inductor. The magnetic layer includes a binder and a magnetic particle having a generally flat shape and whose material is a metal. The processing stability layer includes a cured product of a thermosetting resin composition. The thermosetting resin composition includes a thermosetting resin as an essential component. The thermosetting resin composition includes at least one kind of particle, as an optical component, selected from the group consisting of a first particle having a generally spherical shape and a second particle having a generally flat shape and whose material is an inorganic compound.

Laminated sheet

An exemplary embodiment of the present invention provides a planar inductor including a substrate, a first magnetic layer, a conductive coil, and a second magnetic layer. The first magnetic layer can be disposed on at least a portion of the substrate. The conductive coil can be disposed on a first portion of the first magnetic layer. The second magnetic layer can be disposed on a second portion of the first magnetic layer and on at least a portion of the conductive coil.

Substrate-compatible inductors with magnetic layers

An inductor includes a wire having a width W, and a first electrode and a second electrode continuous to each of both ends of the wire. The wire, the first electrode, and the second electrode are present on the same plane. The plane area Sof the first electrode and the plane area Sof the second electrode are a square value (W) or more of the width W. An area in which the wire is disposed is positioned between the first electrode and the second electrode. The area has a length X in a longitudinal direction equal to a length L between the first electrode and the second electrode along a facing direction of the first electrode and the second electrode, and a length Y in a short-length direction in a direction perpendicular to the longitudinal direction. The length X in the longitudinal direction is 1.5 times or more of the length Y in the short-length direction.

Inductor and producing method thereof

A magnetic wiring circuit board includes an insulating layer; a wire disposed on a one-side surface in a thickness direction of the insulating layer and having a one-side surface in the thickness direction disposed to face the one-side surface in the thickness direction of the insulting layer at spaced intervals thereto, an other-side surface in the thickness direction in contact with the one-side surface in the thickness direction of the insulating layer, and side surfaces each connecting an end edge of the one-side surface in the thickness direction to an end edge of the other-side surface in the thickness direction; and a magnetic layer containing a magnetic particle having a shape of an aspect ratio of 2 or more and embedding the wire.

Magnetic wiring circuit board and producing method thereof

A method for producing a module includes a first step of preparing a conductive layer disposed at one side in a thickness direction of a first peeling layer, a second step of forming a conductive pattern from the conductive layer, a third step of pushing the conductive pattern into a first adhesive layer containing a first magnetic particle and a first resin component, and a fourth step of peeling the first peeling layer.

Producing method of module

A magnetic film includes a first layer having a real part of complex magnetic permeability of 50 or more and an imaginary part of complex magnetic permeability of below 30 at 10 MHz, and a second layer provided on the first layer and having a real part of complex magnetic permeability of 50 or more and an imaginary part of complex magnetic permeability of 30 or more at 10 MHz.

Growing community of inventors

Osaka, Japan

Yoshihiro Furukawa