Samsung Electro-mechanics Co., Ltd.

Samsung Electronics Co., Ltd.

Korea Electronics Technology Institute

Jun Sung Lee

Il Jin Park

Se Hyung Lee

Gwang Hwan Hwang

Woo Jin Lee

Jung Wook Seo

Kang Ryong Choi

Je Ik Moon

Joong Won Park

Jun Ho Song

Young Jun Kim

Soon Kwang Kwon

Ji Woon Im

Woo Suk Cho

Ji Hwan Shin

Young Taek Kim

Jae-Hun Kim

Jeom-Soo Kim

Kyoung Joon Lee

Ji Ho Uh

Il Jun Jeon

Mu Yer Lee

Jin Hwa Kim

Jae Lyang Jung

Hyo Bum Kang

Je Hak Lee

Kwang Mun Choi

Seok Hee Lee

Young Min Hur

A coil electronic component includes a body including a coil portion therein, and including a plurality of magnetic particles including an Fe-based alloy component, and an external electrode connected to the coil portion, wherein at least a portion of the plurality of magnetic particles include a first layer formed on a surface, and a second layer formed on a surface of the first layer, wherein the first layer includes an Fe oxide component and has a thickness of 10 nm or less.

Coil electronic component

A magnetic powder contains a magnetic metal particle comprising iron (Fe) and an insulating coating layer disposed on a surface of the magnetic metal particle and comprising tin (Sn), phosphorous (P) and oxygen (O), and a coil component contains such a magnetic powder.

Magnetic powder and coil component comprising the same

A magnetic composition includes first, second, and third magnetic metal particles. The first magnetic metal particles have an average particle size of 10 &#x3bc;m to 28 &#x3bc;m; the second magnetic metal particles have an average particle size of 1 &#x3bc;m to 4.5 &#x3bc;m; and the third magnetic metal particles include insulating layers disposed on surfaces thereof and have a particle size of 300 nm or less. Therefore, eddy current loss of an inductor having a body formed of the magnetic composition may be improved, and high efficiency and inductance of the inductor may be secured.

Magnetic composition and inductor including the same

A substrate support unit according to an example embodiment of the present inventive concept may include a support having an upper surface on which a substrate is disposed; a coupling ring on which an edge of the substrate is disposed, the coupling ring being having an annular shape, wherein the coupling ring is disposed on an edge of the support; and an arm part for raising and lowering the coupling ring and the substrate, wherein the arm part is disposed below the coupling ring and under a portion of the coupling ring, wherein the coupling ring has a first region disposed on the arm part and a second region disposed around the first region, wherein the first region has a thickness greater than that of the second region.

Substrate support unit and deposition apparatus including the same

A particle detection device includes a chuck stage on which a wafer is configured to be seated, first and second adsorption holes shaped as closed concentric curves passing through the chuck stage, a first adsorption module connected to the first adsorption hole under the chuck stage and configured to provide a vacuum pressure, a second adsorption module connected to the second adsorption hole under the chuck stage and configured to provide a vacuum pressure, a pressure gauge configured to measure vacuum pressures of the first and second adsorption holes and a detection module configured to receive the vacuum pressures of the first and second adsorption holes from the pressure gauge and detect whether the wafer is fixed or not and whether particle is present or not, based on the received vacuum pressures. The first and second adsorption modules sequentially provide the vacuum pressure to the first and second adsorption holes.

Chuck stage particle detection device

Disclosed are a precursor for a rechargeable lithium battery, a positive active material including the same, a preparation method thereof, and a rechargeable lithium battery including the positive active material. More particularly, the present invention relates to a precursor including a sheet-shaped plate having a thickness of about 1 nm to about 30 nm and that is represented by the following Chemical Formula 1.NiCoMnM(OH)&#x2003;&#x2003;[Chemical Formula 1] In the above Chemical Formula 1,

Precursor of a cathode active material for a lithium secondary battery, cathode active material, method for manufacturing the cathode active material, and lithium secondary battery including the cathode active material

An optical disk player, used for reproducing data recorded on a laser or compact disk, is disclosed. In the disk player, a dust cover is rotatably hinged to the top surface of a pick-up unit. The above dust cover is brought into movable contact with and is operated in conjunction with the guide surface of a cam member. The dust cover thus selectively covers or opens the objective lens of the pick-up unit. Due to the dust cover, it is possible to almost completely prevent foreign substances, such as dust, from sticking on the lens, thereby effectively protecting the lens. The dust cover precisely opens or covers the lens in conjunction with a slidable movement of a guide rod of the dust cover relative to a sectioned guide surface of the cam member. The guide surface of the cam member is formed within a range corresponding to a distance between the inside edge of the chucking place of the disk to the junction between the chucking place and the data place of the disk. The optical disk player is thus free from any operational error and has an improved operational reliability.

Optical disk player

An apparatus and a method for chucking an optical disk and for driving a tray in an optical disk player. Combined gears 40 includes a plurality of gears. In accordance with the revolutions of the combined gears, an optical disk is chucked, and a tray 12 is loaded. That is, when the combined gears 40 revolve, they are meshed with a first gear unit 50 to load the tray 12. If the combined gears 40 further revolve, then a protruding piece 48 of the combined gears 40 is engaged with a slider cam 37 to activate a chucking means. In a state with the optical disk chucked, if the tray 12 is to be loaded, the combined gears 40 mesh with a second gear unit.

Method and apparatus for chucking an optical disk and driving a tray in

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Suwon-si, South Korea

Jun Sung Lee