An inductor component includes a main body formed in a flat-plate shape and including a magnetic layer; an inductor wiring line disposed on a plane inside the main body; a first vertical wiring line that extends, from a pad portion which is an end portion of the inductor wiring line, in a first direction to pass through the inside of the main body, and is exposed on a first principal surface side of the main body; a second vertical wiring line that extends, from the pad portion of the inductor wiring line, in a second direction to pass through the inside of the main body, and is exposed on a second principal surface side of the main body; and an insulation layer of a non-magnetic body. The first vertical wiring line includes a via conductor and a columnar wiring line. The second vertical wiring line includes a columnar wiring line.

This disclosure provides an integrated transformer and a power converter, the integrated transformer includes: a magnetic core, including an upper cover, a lower cover, a first winding column and a second winding column; a printed wiring board, disposed between the upper cover and the lower cover, and including a first through hole corresponding to the first winding column and a second through hole corresponding to the second winding column; and a first winding, a second winding, a third winding and a fourth winding; the first winding and the third winding are wound on the first winding column and the second winding column respectively, the second winding and the fourth winding are provided at positions corresponding to the first through hole and the second through hole on the printed wiring board, and magnetic flux directions within the first winding column and the second winding column are opposite.

A non-contact charging station with a planar-spiral power transmission core, a non-contact power-receiving apparatus, and a method for controlling the same. A primary core of the non-contact charging station transmitting a power signal to a portable device using an induced magnetic field and a secondary core of the non-contact power-receiving apparatus are configured as a power transmission Printed Circuit Board (PCB) core in which a planar-spiral core structure is formed on a core base. The power transmission PCB core has a simplified shape along with improved applicability that facilitates its mounting on a non-contact charger. In addition, the receiving core has a reduced volume to reduce the entire size of the power-receiving apparatus so that it can be easily mounted onto a portable device.

New types of circuit elements for integrated circuits include structures wherein a thickness dimension is much greater than a width dimension and is more closely spaced than the width dimension in order to attain a tight coupling condition. The structure is suitable to form inductors, capacitors, transmission lines and low impedance power distribution networks in integrated circuits. The width dimension is on the same order of magnitude as skin depth. Embodiments include a spiral winding disposed in a silicon substrate formed of a deep, narrow, conductor-covered spiral ridge separated by a narrow spiral trench. Other embodiments include a wide, thin conductor formed in or on a flexible insulative ribbon and wound with turns adjacent one another, or a conductor in or on a flexible insulative sheet folded into layers with windings adjacent one another Further, a method of manufacture includes directional etching of the deep, narrow spiral trench to form a winding in silicon.

There are provided a coil component and a method of manufacturing the same. The coil component includes: a body portion including a magnetic material; a coil portion disposed in the body portion; and an electrode portion disposed on the body portion, wherein the coil portion includes a support member having groove portions formed in at least one surface thereof and a coil conductor layer filling the groove portions and protruding onto the at least one surface of the support member, the groove portions having planar spiral shapes.

A laminated coil and manufacturing method therefor are disclosed. The laminated coil comprises multiple lamination units formed after a base body is folded. The lamination unit comprises an opening, a first common edge, and a second common edge; opening directions of two adjacent lamination units are opposite; the lamination unit is separately jointed with two adjacent lamination units by means of the first common edge and the second common edge, so that the base body in a laminated state forms a spiral power-on path. The base body is sequentially folded to form multiple lamination units, so that the base body in the laminated state forms the spiral power-on path to improve energy efficiency of a rectangular coil. In addition, on the basis of the laminated coil structure, the manufacturing method provided is adopted, and high precision of laminated coil can be highly efficiently manufactured.

An inductor built-in substrate includes a core substrate having openings, a magnetic resin filled in the openings and having through holes, and through-hole conductors formed in the through holes respectively such that each of the through-hole conductors includes a metal film. The magnetic resin is formed such that each of the through holes has an angle part having an obtuse angle formed by an upper surface of the magnetic resin and a side wall of a respective one of the through holes.

A multilayer coil component includes a multilayer body formed by stacking a plurality of insulating layers in a length direction and that has a built-in coil, and a first outer electrode and a second outer electrode that are electrically connected to the coil. The coil is formed by a plurality of coil conductors stacked in the length direction being electrically connected to each other. The first and second outer electrodes respectively cover parts of first and second end surfaces and parts of a first main surface. The multilayer body includes a low-dielectric-constant portion, which is centrally arranged, and high-dielectric-constant portions, which are arranged at both ends in the stacking direction. The length of a region in which the coil conductors are arranged in the stacking direction lies in a range from 85% to 90% of a length of the multilayer body.

A buildup board structure incorporating magnetic induction coils and flexible boards is disclosed. The buildup board structure includes at least one first buildup unit or at least one second buildup unit. The first buildup unit includes at least one first buildup body, the second buildup unit includes at least one second buildup body. Any two adjacent buildup bodies are separated by a covering layer provided with a central hole for electrical insulation. All central holes are aligned. Each buildup body includes a plurality of flexible boards, and each flexible board is embedded with a plurality of magnetic induction coils surrounding the corresponding central hole and connected through connection pads. The first and/or second buildup bodies are easily laminated in any order by any number as desired such that the effect of magnetic induction provided by the magnetic induction coils embedded in the buildup board structure are addable to greatly enhance the overall effect of magnetic induction.

An inductor includes a body including a support member including a through-hole, an internal coil disposed on the support member, and an encapsulant encapsulating the support member and the internal coil; and an external electrode disposed on an external surface of the body and connected to the internal coil. The external electrode includes a conductive resin layer and a double conductive layer of a first conductive layer and a second conductive layer, disposed between the conductive resin layer and the internal coil.