Abstract: 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.

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).

Abstract: An inductor component includes a multilayer body including a magnetic layer and a spiral wiring line disposed in the multilayer body. The magnetic layer includes a base resin, a metal magnetic powder, and a non-magnetic powder. The base resin has voids, and the metal magnetic powder and the non-magnetic powder are contained in the base resin. There is a particle of the metal magnetic powder that is in contact with at least one of the voids and with the non-magnetic powder.

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.

Abstract: An electronic component comprising an element body including opposite first and second end surfaces, and an upper surface connecting the first and second end surfaces; a circuit element embedded in the element body; a first lead-out electrode embedded on the first end surface side and electrically connected to the circuit element; a columnar electrode arranged separately from the first lead-out electrode in a first direction viewed in a direction orthogonal to the first end surface, and embedded in the element body with a portion exposed from the first end surface to the upper surface; and a first via conductor connecting the first lead-out and columnar electrodes. An exposure width of the first via conductor, on the first end surface along a second direction orthogonal to the first direction viewed in the direction orthogonal to the first end surface, is smaller than the exposure width of the columnar electrode.

Abstract: 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 ?m, the wire pitch of the spiral wires is equal to or smaller than 10 ?m, and the interlayer pitch between adjacent spiral wires is equal to or smaller than 10 ?m.

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.

Abstract: A printed wiring board comprises a sheet-shaped core base material containing a magnetic material, a coil disposed inside the core base material, and an external circuit layer disposed on at least one of first and second surfaces of the core base material opposite to each other.

Abstract: 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 ?m, the wire pitch of the spiral wires is equal to or smaller than 10 ?m, and the interlayer pitch between adjacent spiral wires is equal to or smaller than 10 ?m.

Abstract: An inductor having an excellent Q values is provided with a configuration in which an inductor and a capacitor are integrally formed in a single element. Specifically, an LC device is provided that includes an element, an inductor, a capacitor, and a magnetic body portion. The element has a planar shape, and includes an insulating resin layer at at least part of the element. The inductor includes a loop-shaped conductor pattern and is formed inside the element. The capacitor is a mounting-type element, and is disposed in an opening of the loop-shaped conductor pattern and inside the element with at least a mounting surface of the capacitor being in contact with the resin layer. The magnetic body portion forms part of the element and is disposed between the conductor pattern and the capacitor over substantially an entire length of the loop-shaped conductor pattern.

Abstract: A printed wiring board comprises a sheet-shaped core base material containing a magnetic material, a coil disposed inside the core base material, and an external circuit layer disposed on at least one of first and second surfaces of the core base material opposite to each other.

Abstract: A coil component includes a core with a closed magnetic circuit structure, a primary-side coil wound around the core, and a secondary-side coil wound around the core, disposed in an axial direction of the primary-side coil, and magnetically coupled to the primary-side coil. The primary-side coil and the secondary-side coil each include a first coil portion, and a second coil portion electrically connected to the first coil portion. The second coil portion overlaps in an axial direction of the first coil portion and an axis of the second coil portion is eccentric from an axis of the first coil portion. A cross-sectional area of an inner magnetic path of the second coil portion in a direction orthogonal to the axis is smaller than a cross-sectional area of an inner magnetic path of the first coil portion in a direction orthogonal to the axis.

Abstract: 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.

Abstract: 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.

Abstract: The manufacture method of a coil component includes the steps of bonding a dummy metal layer onto one face of a mounting base, stacking a base insulating resin on the dummy metal layer, stacking a first spiral wiring and a first insulating resin in this order on the base insulating resin to cover the first spiral wiring with the first insulating resin and stacking a second spiral wiring and a second insulating resin in this order on the first insulating resin to cover the second spiral wiring with the second insulating resin to thereby form a coil substrate, detaching the mounting base from the dummy metal layer in a bonding face between the one face of the mounting base and the dummy metal layer, removing the dummy metal layer from the coil substrate, and covering the coil substrate with a magnetic resin.

Abstract: 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.

Abstract: 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.

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.

Abstract: A method of manufacturing a coil component includes the steps of disposing a dummy metal layer on a base; laminating a base insulating resin on the dummy metal layer; exposing the dummy metal layer by disposing an opening part in the base insulating resin; disposing a spiral wiring on the base insulating resin and disposing a sacrificial conductor on the dummy metal layer in the opening part of the base insulating resin; enlarging the sacrificial conductor by plating by energizing the dummy metal layer; covering the spiral wiring and the sacrificial conductor with an insulating resin; exposing the sacrificial conductor by disposing an opening part in the insulating resin; forming a hole part by removing the sacrificial conductor by etching from the opening part of the insulating resin; and constructing the inner magnetic path of a magnetic resin by filling the hole part with the magnetic resin.

Abstract: A coil component has a first surface and a second surface facing each other. The coil component has a coil conductor formed into a spiral shape and having a central axis intersecting with the first surface and the second surface, an insulation resin body covering the coil conductor and including an inner diameter hole part corresponding to the central axis of the coil conductor and a magnetic resin body disposed on the first surface side of the insulation resin body without being disposed on the second surface side of the insulation resin body. The magnetic resin body is also disposed inside the inner diameter hole part of the insulation resin body.