A magnetic element includes a magnetic core assembly and a winding assembly. The magnetic core assembly includes a first magnetic part. The winding assembly includes a first winding. The first winding is wound around the first magnetic part. Moreover, at least a portion of a substrate is formed as the first winding. The substrate includes a first accommodation space and a first metal structure. Moreover, at least a portion of the first metal structure is formed as at least a portion of the first winding and disposed on four lateral surfaces of the first accommodation space, and at least a portion of the first magnetic part is disposed within the first accommodation space.

A one-piece solenoid stator core is provided, comprising: a plurality of outer wall segments; a plurality of inner wall segments; and a lower wall extending between the plurality of outer wall segments and the plurality of inner wall segments; wherein a plurality of outer slots is defined between the plurality of outer wall segments and a plurality of inner slots is defined between the plurality of inner wall segments, each of the outer slots being radially aligned with an inner slot relative to a central axis of the stator core.

There is provided a coil component which includes a core; and a plurality of leg portions provided at respective ends of the core, wherein each of the leg portions includes a protrusion which protrudes inward with respect to a joint between the core and the leg portion.

A method to form an electrical component, comprising: overlaying a conductive and adhesive layer on a body and covering a first portion of a terminal part of a conductive element, wherein a second portion of the terminal part of the conductive element is not covered by the conductive and adhesive layer; and overlaying at least one metal layer on the conductive and adhesive layer and covering the second portion of the terminal part of the conductive element, wherein the at least one metal layer is electrically connected to the second portion of the terminal part of the conductive element for electrically connecting with an external circuit.

An electronic part has: a conductive unit that has a terminal including a conductor-exposed portion; n insulating unit in contact with the conductive unit, the insulating unit enclosing part of the conductive unit; and a terminal conductive layer in contact with the insulative unit and conductor-exposed portion. The conductive unit is an electricity-conducting body. The insulating unit includes an electric insulator. The conductor-exposed portion is part of the surface of the conductive unit. The terminal conductive layer has: a first conductive layer including conductive particles and a resin; and a second conductive layer formed from a metal having a lower specific resistance than the first conductive layer, the second conductive layer being in contact with the first conductive layer. The first conductive layer and the second conductive layer are in contact with the conductor-exposed portion.

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 (S1/S0×100) of the area.

A method for producing a magnetic core includes a processing step of giving a desired shape to a strip made of an alloy composition, a heat-treating step of forming bcc-Fe crystals, and then a stacking step of obtaining a magnetic core having a shape. Here, the alloy composition is Fe—B—Si—P—Cu—C and has an amorphous phase as a primary phase. In the heat-treating step, the strip is heated up to a temperature higher than a crystallization temperature of the alloy composition at a high heating rate.

Provided is a method for increasing magnetic induction intensity of soft magnetic metallic materials. The method includes carburizing or carbonitriding the soft magnetic metallic materials with carbon source or a carbonitriding agent by a heat treatment process, to increase the magnetic induction intensity of the soft magnetic metallic materials, wherein the soft magnetic metallic materials are amorphous materials, nanocrystals, silicon steel, or pure iron.

An electronic component includes a main body made of an insulator, a circuit element positioned inside the main body, and outer electrodes. The outer electrodes are constituted of bottom surface electrodes and post-like electrodes. The post-like electrodes are extended from a bottom surface of the main body toward the interior of the main body. Further, the post-like electrodes are embedded in the main body, and parts of the post-like electrodes are exposed to side surfaces of the main body. Furthermore, the bottom surface electrodes are made of a resin containing metal powder.

An assembly device for a three-dimensional triangular iron core is provided according to the present application, including iron core driving devices each for driving an iron core to be assembled with adjacent iron cores. There are three iron core driving devices, and each of the iron core driving devices includes an iron core fixing device and a driving assembly for driving the iron core fixing device to move. When the three-dimensional triangular iron core is required to be assembled, firstly, the three iron cores are mounted on the corresponding iron core fixing devices respectively, then the iron core fixing devices are driven by driving assemblies to move toward one another, thereby driving adjacent iron cores to move toward each other until the adjacent iron cores are assembled, and then each two adjacent iron cores are wound and assembled.