Abstract: A coil electronic component includes a body, a coil unit disposed in the body and having a multilayer structure. The coil unit includes a first coil pattern forming an upward turn with respect to a bottom surface of the body and a second coil pattern forming a downward turn with respect to the bottom surface of the body. The first and second coil patterns are disposed on at least two layers of the multilayer structure. The component additionally includes a first external electrode and a second external electrode disposed on the bottom surface of the body.

Abstract: A coil component includes a body having a winding type coil and a core in which the winding type coil is embedded, and external electrodes disposed on external surfaces of the body. The core includes first and second cores, and the first and second cores are coupled to each other with a bonding surface interposed therebetween. The bonding surface is formed of a same type of resin as the first and second cores. The first and second cores each include a resin directly covering surfaces of magnetic powder particles, such that adjacent particles are separated only by the resin. A method of manufacturing the coil component includes applying a solvent to dissolve a resin on a bonding surface of the first core, and mounting the second core to the bonding surface having the solvent applied thereto.

Abstract: A coil electronic component includes a body including ferrite, a coil portion embedded in the body, external electrodes electrically connected to the coil portion, and a magnetic permeability adjusting layer disposed in the body and including ferrite having a Curie temperature lower than that of the ferrite included in the body.

Abstract: There are provided a wire wound inductor and a manufacturing method thereof according to an exemplary embodiment in the present disclosure. The wire wound inductor according to an exemplary embodiment in the present disclosure includes a winding coil, a magnetic core embedding the winding coil, and an adhesive portion disposed between the magnetic core and the winding coil and enclosing the winding coil.

Abstract: A winding-type inductor includes a body including a winding-type coil and first and second external electrodes disposed on external surfaces of the body. The body includes the winding-type coil, and first and second connection reinforcing portions are additionally arranged on first and second ends of the winding-type coil and directly connected to the first and second external electrodes.

Abstract: An inductor includes a body including an internal coil having first and second end portions and an encapsulant encapsulating the internal coil and containing magnetic particles. First and second external electrodes are on external surfaces of the body and electrically connected to the internal coil. A first metal expansion portion encloses the first end portion while coming into direct contact with the first end portion of the internal coil, and may be between the body and the first external electrode. A second metal expansion portion encloses the second end portion while coming into direct contact with the second end portion of the internal coil, and may be between the body and the second external electrode.

Abstract: A coil component includes a body including coil patterns and a plurality of trenches; and external electrodes electrically connected to the coil patterns. The plurality of trenches include a magnetic material, and at least one edge of a trench disposed outside of an outermost coil pattern among the coil patterns has a same shape as an outside boundary portion of the outermost coil pattern adjacent thereto.

Abstract: A thin film type coil component including coil patterns in a cross section shape having an undercut in lower portions thereof is provided. The coil patterns may reduce parasitic capacitance between the coil patterns, thereby minimizing electrical loss. The volume of the coil patterns may be increased, thereby improving inductance and resistance characteristics.

Abstract: A hybrid coil component in which a magnetic core generally included in a wire-wound type inductor and a core included in a multilayer type inductor are combined with each other. A winding coil may be wound around a magnetic core manufactured in advance and an encapsulant having a stacked structure of a plurality of magnetic sheets may encapsulate the winding coil wound around the magnetic core. In this case, a magnetic flux generated in the winding coil is arranged to be parallel to long axes of magnetic particles contained in the magnetic core and the encapsulant.

Abstract: An antenna device includes: an antenna wiring including a spiral wiring having a ring shape, wherein the spiral wiring includes a linear part formed as a straight line or a curved line, and a bent part formed as a meandering line.

Abstract: A wire-wound type inductor includes a core containing magnetic powder flakes and including a central portion and an outside portion, and a winding coil disposed in the core and wound around the central portion of the core, wherein the core has a coupling structure including first and second bodies, and the first and second bodies contain magnetic powder flakes having shape magnetic anisotropy, and long axes of the magnetic powder flakes are arranged in parallel with a direction in which a magnetic field of the winding coil is formed.

Abstract: There is provided a thin film-type coil component having a size equal to or less than 0806 and including a ceramic main body, external electrodes including a plurality of first external electrodes formed on one surface of the ceramic main body and a plurality of second external electrodes formed on the other surface facing one surface of the ceramic main body, and a coil unit including a plurality of coil layers stacked in the ceramic main body, thereby obtaining low direct current (DC) resistance.

Abstract: A magnetic powder includes an insulating layer formed of a polymer material which is directly coated on a powder particle core having magnetic properties. An inductor containing the same is also provided. The magnetic powder does not include a separate inorganic insulating layer between the powder particle core and the insulating layer, the insulating layer has a relatively uniform thickness, and a body formed using the magnetic powder does not contain a separate binder or curing agent, such that a high permeability and an excellent Q factor may be implemented.

Abstract: A chip electronic component includes a body including a coil portion disposed therein and a magnetic metallic powder, and a stress buffer layer disposed on a surface of the body. A Young's modulus of the stress buffer layer is less than that of the body.

Abstract: A thin film type coil component that includes a body having a coil embedded therein and including a composite of magnetic powder particles and a polymer, and external electrodes disposed on at least portions of external surfaces of the body. The body includes an upper body portion disposed on an upper surface of the coil, a lower body portion disposed on a lower surface of the coil, and a central body portion disposed between the upper body portion and the lower body portion and including a central portion of the coil. The upper body portion and the lower body portion include a stacked structure of a plurality of magnetic sheets, each magnetic sheet including the composite of the magnetic powder particles and the polymer.

Abstract: A coil component includes a body including coil patterns and a plurality of trenches; and external electrodes electrically connected to the coil patterns. The plurality of trenches include a magnetic material, and at least one edge of a trench disposed outside of an outermost coil pattern among the coil patterns has a same shape as an outside boundary portion of the outermost coil pattern adjacent thereto.

Abstract: A coil component includes an insulating layer and a coil pattern provided inside the insulating layer. A lower surface and a side surface of the coil pattern form an acute angle, in a longitudinal cross section of the coil pattern. In particular, a side surface of the coil pattern includes a foot part located in a lower portion of the side surface and an upper part located above the foot part in the side surface, and an angle between the lower surface and the upper part of the side surface of the coil pattern is larger than the acute angle between the lower surface and the foot part of the side surface of the coil pattern. A method of manufacturing the coil component is also provided.

Abstract: A method of manufacturing a coil component includes preparing a coil unit including a coil surrounded by an insulating film. The coil unit further has a through hole in a center thereof and has a first surface and a second surface opposing each other. A first magnetic sheet and a second magnetic sheet containing magnetic particles are prepared, and the first magnetic sheet is pressed onto the first surface of the coil unit to cause the first magnetic sheet to fill the through hole therewith. The second magnetic sheet is pressed onto the second surface of the coil unit. The second magnetic sheet may be pressed onto a portion of the first magnetic sheet that extends through the through hole and outwardly from the second surface of the coil unit.

Abstract: A coil component includes a coil part having a through hole in a center, including a coil covered by an insulating film, and having a first surface and a second surface opposing each other, a core disposed in the through hole and including a nonmagnetic layer, and cover portions disposed on the first surface and the second surface of the coil part.

Abstract: A common mode filter is manufactured to include a coil part including an insulation layer and a conductor pattern formed in the insulation layer; and a magnetic substrate coupled to one surface or both surfaces of the coil part. The magnetic substrate includes: an electrostatic absorbing layer made of an electrostatic absorbing material; a magnetic layer provided on one surface or both surfaces of the electrostatic absorbing layer and made of a magnetic material; and an electrode provided between the magnetic layer and the electrostatic absorbing layer and made of a conductive material. Therefore, common mode filter may maintain high efficiency characteristics while preventing an electrostatic discharge phenomenon.