Samsung Electro-mechanics Co., Ltd.

Sang Hyuk Kim

Sang Hoon Kwon

Jae Yeol Choi

Kang Heon Hur

Sung Hyung Kang

Hyo Sub Kim

Soon Mo Song

Byung Kwon Yoon

Gun Woo Kim

Min Su Kim

Chang Hak Choi

Doo Il Kim

Seok Hyun Yoon

Chang Sik Kim

Min Gon Lee

Jae Sung Park

Ki Yong Lee

Chan Hee Nam

Kum Jin Park

Hyung Joon Jeon

Dong Woo Rhee

Joon Yeob Cho

Hye Young Baeg

A camera module includes a lens barrel; an actuator driving the lens barrel in a direction perpendicular to an optical axis; and an aperture module adjusting an amount of light incident in the lens barrel. The aperture module includes an aperture coupled to the lens barrel, a magnet provided on one side of the aperture, a coil disposed opposite to the magnet, a position detector detecting a position of the magnet to generate a feedback signal, and a driver comparing an input signal indicating a target position of the magnet with the feedback signal to calculate an error value and generating a driving signal according to the calculated error value. The driver compares a current position of the lens barrel with a neutral position of the lens barrel to generate a compensation signal and compensates for one of the input signal and the feedback signal based on the compensation signal.

Aperture module and camera module including the same

A dielectric composition may include a first dielectric powder; and a second dielectric powder having an average grain size smaller than that of the first dielectric powder and included in the dielectric composition in an amount of 0.01 to 1.5 parts by weight based on 100 parts by weight of the first dielectric powder, and a multilayer ceramic capacitor formed using the same. A multilayer ceramic capacitor may include: a ceramic body including dielectric layers; first and second internal electrodes disposed in the ceramic body to face each other with the respective dielectric layers interposed therebetween; and first and second external electrodes electrically connected to the first and second internal electrodes, respectively. The dielectric layers are formed of a dielectric composition including a first dielectric powder and a second dielectric powder having an average grain size smaller than that of the first dielectric powder and included in the dielectric composition in an amount of 0.01 to 1.5 parts by weight based on 100 parts by weight of the first dielectric powder.

Dielectric composition and multi-layered ceramic capacitor

There is provided a multilayer ceramic capacitor including: a ceramic body in which a plurality of dielectric layers are stacked; a plurality of first and second internal electrodes alternately formed on the plurality of dielectric layers and including first and second lead-out parts having an overlap area exposed to one surface of the ceramic body, respectively; first and second external electrodes formed on one surface of the ceramic body and electrically connected to the first and second lead-out parts, respectively; and a first insulating layer formed on one surface of the ceramic body to cover exposed portions of the first and second lead-out parts, wherein the first and second lead-out parts are formed to have concave-convex portions alternating with each other in the overlap area therebetween.

Multilayer ceramic capacitor with electrodes having lead-out parts and method of manufacturing the same

There are provided a method of manufacturing perovskite powder, and perovskite powder and a multilayer ceramic electronic component manufactured thereof. The manufacturing method includes: washing metal oxide hydrate to remove impurities therefrom; adding pure water and an acid or a base to the metal oxide hydrate to prepare a metal oxide sol; mixing the metal oxide sol with a metal salt to form perovskite particle nuclei; and conducting grain growth of the perovskite particle nuclei by hydrothermal treatment to produce perovskite powder. The method of manufacturing perovskite powder and the perovskite powder manufactured by the same have advantages such as excellent crystallinity, reduced generation of fine powder, and favorable dispersion properties.

Method of manufacturing perovskite powder, perovskite powder manufactured by the same and multilayer ceramic electronic component

A multilayer ceramic capacitor includes a ceramic body having first and second main surfaces opposing one another, first and second lateral surfaces opposing one another, and first and second end surfaces opposing one another. First and second internal electrodes have an overlap region with lead out portions exposed to the first lateral surface of the ceramic body. An insulating layer is formed to cover the overlap region of the lead out portions exposed to the first lateral surface of the ceramic body; and first and second external electrodes are formed on the first lateral surface of the ceramic body on which the insulating layer is formed and electrically connected to the first and second internal electrodes. Thicknesses of the insulating layer from the first lateral surface and the first and second external electrodes from the first lateral surface are specified.

Multilayer ceramic capacitor and circuit board with multilayer ceramic capacitor mounted thereon

There is provided a multilayered ceramic capacitor including: a ceramic body; a plurality of first and second internal electrodes having first and second lead-out portions overlapped with each other, respectively, and exposed to one surface of the ceramic body; first and second external electrodes formed on one surface of the ceramic body and electrically connected to the first and second lead-out portions, respectively; and an insulating layer formed on one surface of the ceramic body to cover exposed portions of the first and second lead-out portions, wherein the first lead-out portion has a first overlap increase part of which a forward edge has an inclined surface, and the second lead-out portion has a second overlap increase part of which a forward edge has an inclined surface.

Multilayered ceramic capacitor and method of manufacturing the same

Disclosed herein is an apparatus for synthesizing nano particles. The apparatus for synthesizing nano particles is configured to include: a plasma generator that generates plasma; a recovery device that recovers the synthesized nano particles; and a cooler that is disposed between the plasma generator and the recovery device and includes a cooling path where the nano particles are synthesized, while material supplied from the plasma generator is cooled, wherein the cooling path is set to have lower cooling temperatures for each section as going to the moving direction of the nano particles.

Apparatus for synthesizing nano particles, and method for synthesizing the nano particles using the same

A method for synthesizing nano particles, including: moving material in a plasma generating space in a first direction; and synthesizing nano particles by cooling the material moved along the first direction, wherein the synthesizing the nano particles may be performed by cooling the material at gradually lower temperatures during the moving thereof in the first direction.

Method for synthesizing nano particles

There is provided a dielectric ceramic composition including a base powder expressed by a composition formula of Ba(TiZr)O, where 0.995&#x2266;m&#x2266;1.010 and 0&#x3c;x&#x2266;0.10, and first to fifth accessory components, and a multilayer ceramic capacitor having the same. The multilayer ceramic capacitor having the dielectric ceramic composition has a high dielectric constant and superior high-temperature reliability.

Growing community of inventors

Gyunggi-do, South Korea

Sang Hyuk Kim