Abstract: In a coil component, a height h1 of a pedestal portion of a resin wall corresponds to the height position of a step portion. In addition, a height of a seed portion corresponds to the plating start position at a time when a winding portion of a coil is plated and grown. The plating start position and the step portion are designed to be close to each other by the height h1 of the pedestal portion and the height h2 of the seed portion satisfying 0.3?h1/h2?10. Accordingly, although the coil component has a configuration in which the resin wall has the step portion, the inside of the step portion is sufficiently filled with a coil conductor, and thus deterioration of characteristics is suppressed.

Abstract: A laminated electronic component having a coil formed in the laminated body of pluralities of laminated magnetic material layers and conductor patterns by electrically connecting the conductor patterns adjacent to each other via the magnetic material layers. The magnetic material layers contain a metal magnetic material. The coil has a first end portion close to a bottom surface of the laminated body and a second end portion distant from the bottom surface of the laminated body. The first end portion is electrically connected to a first external terminal disposed on the bottom surface of the laminated body. The second end portion is electrically connected to a second external terminal disposed on the bottom surface of the laminated body via an electrode disposed on a side surface of the laminated body. The electrode is covered with an insulator film.

Abstract: A coil component includes a body having one surface and the other surface, opposing each other, and one side surface and the other side surface, each connecting the one surface and the other surface to each other, opposing each other, a recess formed in each of the one side surface and the other side surface of the body to extend to the one surface of the body, a support substrate disposed inside the body, a coil portion, disposed on the support substrate, having one end portion and the other end portion exposed to the recess, an oxide insulating layer disposed on a surface of the body, and a first insulating layer disposed along a surface of the oxide insulating layer to cover the surface of the body.

Abstract: A powder magnetic core with terminal includes: a powder magnetic core composed of Fe-based alloy particles including Fe and an element M (M is Cr and/or Al) which is more easily oxidizable than Fe; and at least two terminals formed at an interval on a surface of the powder magnetic core. The powder magnetic core includes the Fe-based alloy particles, and an underlayer including the element M (M is Cr and/or Al), Fe and O formed on a surface of the Fe-based alloy particles. A first layer including at least one of Cr or Al and O is formed on a surface including a region in which the terminals of the powder magnetic core are formed. The terminals are formed on a surface of the first layer. Each of the terminals includes a second layer including one of Au, Ag, Cu, Ti or Cr.

Abstract: The present disclosure provides a transformer module and a power module, wherein the transformer module comprises: a magnetic core, where a first insulating layer and a second wiring layer are sequentially disposed on the magnetic core from inside to outside; a first metal winding, wound around the magnetic core in a foil structure, and comprising a first winding segment formed in the first wiring layer and a second winding segment formed in the second wiring layer; and a second metal winding, wound around the magnetic core in a foil structure, comprising a third winding segment formed in the first wiring layer and a fourth winding segment formed in the second wiring.

Abstract: An inductor component including a magnetic layer in which a magnetic metal powder is dispersedly present in a base material made of an insulation material and an inductor wiring line laminated on a surface of the magnetic layer. The inductor wiring line includes an anchor portion extending from a main face of the inductor wiring line on a side of the magnetic layer and covering a surface of the magnetic metal powder in the magnetic layer.

Abstract: In a coil 5 of a multilayer coil component 1, an end portion 6a of a turn 6 closest to a side surface 2e in the facing direction of the side surface 2e and a side surface 2f is connected to a first external electrode 3 and an end portion 11a of a turn 11 closest to the side surface 2f in the facing direction of the pair of side surfaces 2e and 2f is connected to a second external electrode 4. The area at which the turn 6 faces the second external electrode 4 and the area at which the turn 11 faces the first external electrode 3 are smaller than the area at which turns 7, 8, 9, and 10 other than the turn 6 and the turn 11 face the first external electrode 3 or the second external electrode 4.

Abstract: A coil component includes a body including magnetic metal powder particles and an insulating resin; a coil portion embedded in the body; and first and second external electrodes respectively disposed on the body to be spaced apart from each other and respectively connected to both end portions of the coil portion. A magnetic metal powder particle exposed from a surface of the body, among the magnetic metal powder particles, has a plating prevention film formed on at least a portion of a surface thereof and containing metal ions of the exposed magnetic metal powder particle.

Abstract: A double 8-shaped inductive device includes a first 8-shaped coil, a second 8-shaped coil, and a connection structure. The first 8-shaped coil includes a first connecting terminal. The second 8-shaped coil includes a second connecting terminal, which the first 8-shaped coil and the second 8-shaped coil are to be disposed side by side on two sides of a first imaginary line. The connection structure electrically couples to the first connecting terminal and the second connecting terminal, such that the first 8-shaped coil and the second 8-shaped coil form a connected circuit, and the first 8-shaped coil and the second 8-shaped coil include a loop respectively.

Abstract: A coil electronic component includes an insulating substrate, a coil portion disposed on at least one surface of the insulating substrate, a body in which the insulating substrate and the coil portion are embedded, a lead-out portion connected to the coil portion and exposed to an external surface of the body, and a protrusion embedded in the body to be connected to the lead-out portion, and spaced apart from the external surface of the body and each of the coil portion.

Abstract: Magnetic core for a balun, balun with a magnetic core and method for manufacturing a magnetic core. In particular, a magnetic core is provided comprising multiple core elements, wherein the individual core elements are concentrically arranged. Furthermore, a heat sink is arranged between two adjacent core elements. By using multiple core elements for a magnetic core, the individual core elements can be adapted to different frequency ranges. In this way, the magnetic core may be used for a balun having a broad frequency range. Furthermore, thermal energy generated in the magnetic core can be dissipated by the heat sinks between the individual core elements. In this way, the power handling capability of the magnetic core can be increased.

Abstract: A coil electronic component includes a body including magnetic particles and an insulating resin, and a coil portion disposed within the body. The body has a multilayer structure including a core portion covering the coil portion and a cover portion covering the core portion. The magnetic particles included in the core portion have a distribution of a particle size having a D50 of 3.5 ?m or less.

Abstract: Inductor device includes first and a second coils. First coil is wound into plural first circles. Second coil is wound into plural second circles. First connection member is coupled to first circle between outermost and innermost sides among first circles located at first area and first circle on outermost side among first circles located at second area. Second connection member is coupled to second circle on outermost side among second circles located at first area and second circle between outermost and innermost sides among second circles located at second area. At least two first circles of first circles are located at first area, and half of first circle of first circles is located at second area. Half of second circle of second circles is located at first area, and at least two second circles of second circles are located at second area.

Abstract: A coil component according to one aspect of the present invention includes: a magnetic base body containing a plurality of metal magnetic particles and a binder binding the plurality of metal magnetic particles together; and a coil conductor provided in the magnetic base body and including a winding portion wound around a coil axis, wherein as viewed from a direction of the coil axis, the magnetic base body includes a core region enclosed by the winding portion, and a ratio of an area of the core region to a sum of an area of the winding portion and the area of the core region is 32% or larger.

Abstract: A multilayer coil component includes an element body, a coil disposed in the element body, and an external electrode disposed in the element body and electrically connected to the coil. The element body includes a principal surface that is a mounting surface, and an end surface positioned adjacent to the principal surface and extending in a direction crossing to the principal surface. The external electrode includes an underlying metal layer and a conductive resin layer. The underlying metal layer is formed on the principal surface and the end surface. The conductive resin layer is formed to cover the underlying metal layer. A thickness of the conductive resin layer at an end positioned above the principal surface of the underlying metal layer is equal to or greater than 50% of a maximum thickness of a portion positioned above the principal surface of the conductive resin layer.

Abstract: A coil module is provided, including a second coil mechanism. The second coil mechanism includes a third coil assembly and a second base corresponding to the third coil assembly. The second base has a positioning assembly corresponding to a first coil mechanism.

Abstract: An inductor component includes a base, an inductor device disposed in the base, and an external terminal serving as a line that is disposed on the base and that is electrically coupled to the inductor device. The external terminal includes a first metal film that is in contact with the base and that is electrically conductive, a second metal film disposed on a side of the first metal film opposite to the base, the second metal film having resistance to solder leaching, and a catalytic layer disposed between the first metal film and the second metal film. The first metal film includes a pore portion adjacent to the catalytic layer.

Abstract: An electronic component includes a marker excellent in visibility and prevented from peeling off. That is, an electronic component is provided with an element body having a conductor inside; an insulating film and at least one marker disposed on a surface of the element body; and an external electrode disposed on the element body or the insulating film. The marker is exposed on a surface of the electronic component, and when the maximum height of the marker on the surface of the element body on which the marker is disposed is Mmax and the maximum height of the insulating film is Imax, Mmax and Imax satisfy the following expression: Mmax?Imax.

Abstract: A coil component includes a body including a coil having a top coil and a bottom coil connected to each other through a via and an external electrode disposed on an external surface of the body to be connected to the coil. A first insulating layer is disposed on a surface of the top coil, and a second insulating layer is disposed on a surface of the bottom coil. The first and second insulating layers are disposed to extend between the top coil and the bottom coil.

Abstract: A coil component includes: a body including a magnetic material and a coil of which both ends are externally exposed; intermetallic compounds disposed on the exposed both ends of the coil; and external electrodes disposed on the body to cover the intermetallic compounds. The external electrodes include: conductive resin layers disposed on outer surfaces of the body to contact the exposed both ends of the coil and including base resins, a plurality of metal particles disposed in the base resins, and conductive connecting parts surrounding the plurality of metal particles and contacting the intermetallic compounds. The coil component further includes electrode layers disposed on the conductive resin layers and contacting the conductive connecting parts.