Abstract: There is provided a camera module including: a lens housing in which a lens is disposed; a glass cover formed of a transparent material and covering the lens housing; and a coil conductive part formed between an outer surface of the lens and an inner surface of the glass cover.

Abstract: Disclosed are a piezoelectric element and a piezoelectric vibrator having the same. The piezoelectric element and the piezoelectric vibrator having the same in accordance with an embodiment of the present invention include: a piezoelectric material formed by laminating a plurality of ceramic layers with one another; internal electrodes formed, respectively, on surfaces of the ceramic layers; and a pair of cover layers formed, respectively, above and below the piezoelectric material in order to protect the internal electrodes, and at least one of the cover layers includes: a plurality of crystal grains; and crack inhibiting particles disposed at boundaries between the plurality of crystal grains and configured to inhibit a crack from spreading in the cover layers.

Abstract: A dielectric ceramic composition and a multilayer ceramic capacitor containing the same are provided. The dielectric ceramic composition contains a base material powder represented by (1?x)BaTiO3?xPbTiO3 containing a first main ingredient represented by BaTiO3 and a second main ingredient represented by PbTiO3, wherein x satisfies 0.0025?x?0.4. The multilayer ceramic capacitor includes a ceramic body in which dielectric layers containing the dielectric ceramic composition are alternately stacked with first and second internal electrodes, and first and second external electrodes formed on both end portions of the ceramic body and respectively electrically connected to the first and second internal electrodes.

Abstract: A coil device comprises a first coil, a second coil, a first conductor, and a first film. The second coil is disposed inside an inner boundary line of the first coil. The first conductor is disposed between the inner boundary line of the first coil and an outer boundary line of the second coil to dissipate heat. The first film is disposed on upper surfaces of the first coil, the second coil, and the first conductor.

Abstract: Disclosed herein is an electronic stability control system including: a motor driver configured to include a motor switch for driving a motor unit depending on a PWM signal and a freewheeling switch and a reverse protection switch for checking whether the motor unit is normally operated; and a controller configured to turn off all of the motor switch, the freewheeling switch, and the reverse protection switch, turn off only the motor switch and the reverse protection switch, or turn off only the motor switch and the freewheeling switch, apply a diagnostic current, and then detect a fault state of the freewheeling switch or the reverse protection switch, or the freewheeling switch and the reverse protection switch by using a voltage detector.

Abstract: Disclosed herein is a metal magnetic powder, and the metal magnetic powder according to the exemplary embodiment of the present invention includes a soft magnetic core particle and a multilayer coating film covering the core particle and having a multilayer structure, the multilayer coating film including an oxide film formed by heat treating the core particle and an insulation film formed by coating a coating particle with respect to the core particle.

Abstract: A sheet for shielding electromagnetic waves includes a magnetic sheet formed of a metal ribbon. The magnetic sheet includes fractures disposed in a plurality of cracked portions comprising a plurality of metal ribbon fragments.

Abstract: A sheet for shielding against electromagnetic waves includes a first magnetic material having a plurality of through holes formed in a thickness direction, and a second magnetic material filling the plurality of through holes and blocking a frequency band different from that of electromagnetic waves blocked by the first magnetic material.

Abstract: A magnetic sheet for a communications module includes a magnetic material. The magnetic sheet includes crushed cracks in a first region and a second region disposed adjacent to the first region. Degrees of crushed cracks are different in the first region and the second region.

Abstract: A common mode filter includes a magnetic substrate in which ferrite particles having anisotropy and a planar structure are disposed to have a planar orientation.

Abstract: A magnetic powder contains magnetic particles, a first coating layer disposed on surfaces of the magnetic particles and containing a first glass, and a second coating layer disposed on the first coating layer and containing a second glass different from the first glass. A method of manufacturing magnetic powder includes preparing magnetic particles, forming a first coating layer containing a first glass on surfaces of the magnetic particles, and forming a second coating layer containing a second glass different from the first glass on the first coating layer.

Abstract: A wire wound inductor includes a winding coil, a magnetic core disposed in a central portion of the winding coil, and a body part filling a space around the winding coil and the magnetic core. The magnetic core has different characteristics from those of the body part, for example a higher permeability and higher magnetic flux density. In a method of manufacturing a wire wound inductor, a magnetic core is inserted in a central portion of a winding coil, wherein the magnetic core has different characteristics from those of a magnetic metal powder that is filled on the winding coil and the magnetic core. In one example, the filled magnetic metal powder is compressed at a pressure lower than a high pressure applied in the formation of the magnetic core.

Abstract: A power inductor includes a magnetic body; a coil provided in the magnetic body; and external electrodes formed at opposite end portions of the magnetic body. The magnetic body includes a stacked plurality of magnetic sheets including a flake alloy powder, and a major axis of the flake alloy powder and a major axis of the coil are arranged in a direction parallel to an upper surface of the magnetic body.

Abstract: A coil component may include a core element, a coil conductor embedded in a surface of the core element, and a cover element bonded to the surface of the core element in which the coil conductor is embedded. Since the core element and the cover element are integrally formed, common failures, such as delamination or cracks, may be suppressed, and thereby product reliability may be improved.

Abstract: The present invention related to ferromagnetic nano-metal powders and more particularly, to ferromagnetic nano-metal powders for increasing packing density by decreasing the porosity between micro-sized soft magnetic metal powders. According to an embodiment of the present invention, the ferromagnetic nano-metal powder allows high packing density and high magnetic property at a high frequency to fill the pores inevitably generated during the manufacturing process of an inductor using the soft magnetic metal powders.

Abstract: There is provided a piezoelectric device, including: a multilayered body in which a piezoelectric layer having a first internal electrode formed thereon and a piezoelectric layer having a second internal electrode formed thereon are alternately formed; a first insulating via formed in the first internal electrode layer; a second insulating via formed in the second internal electrode layer; a first conductive via formed in the multilayered body and penetrating through the first insulating via; and a second conductive via formed in the multilayered body and penetrating through the second insulating via, wherein a diameter of the first insulating via is larger than a diameter of the first conductive via, and a diameter of the second insulating via is larger than a diameter of the second conductive via.

Abstract: A chip electronic component includes a magnetic body including magnetic metal powder particles, an internal coil unit embedded in the magnetic body, and a cover unit disposed on at least one of upper and lower surfaces of the magnetic body and including a magnetic metal plate. The magnetic metal plate is cracked and includes a plurality of metal fragments.

Abstract: A conductive paste for an internal electrode includes a conductive material; and a common material comprising a dielectric substance and a eutectic mixture, wherein the eutectic mixture comprises lead oxide (PbO) and copper oxide (CuO) and has a eutectic temperature that is higher than a sintering temperature of the conductive material.

Abstract: The present invention relates to particles with special structure for preventing electrostatic discharge and paste containing the same. The particles having the structure of the present invention can be manufactured easily and economically. Furthermore, electrostatic discharge can be very effectively blocked through the maximized quantum tunneling effect between particles and the particles or paste of the present invention can be easily applied to high density fine circuits.

Abstract: An antenna device may include a substrate, a first coil formed on the substrate, a second coil formed on the substrate and formed outside of the first coil, and a magnetic sheet interposed between the substrate and the first coil. Whereby, the second coil formed around the first coil removes electromotive force formed by a magnetic field passing through the outside of the first coil such that a communication distance and communication strength may be improved.