Abstract: Provided are a method of forming silicon nitride at a low temperature, a charge trap memory device including crystalline nano dots formed by using the same, and a method of manufacturing the charge trap memory device. The method of forming silicon nitride includes loading a substrate into a chamber of a silicon nitride deposition device comprising a filament; increasing a temperature of the filament to a temperature whereby a reactant gas to be injected into the chamber may be dissociated; and injecting the reactant gas into the chamber so as to form a crystalline silicon nitride film or crystalline silicon nitride nano dots on the substrate. In the method, the temperature of the filament may be maintained at 1,400° C.˜2,000° C., and a pressure in the chamber may be maintained at several to several ten torr when the reactant gas in injected into the chamber.

Abstract: A hair clip is provided. The hair clip has a lower clip piece and an upper clip piece connected through a pivot connection with a hinge pin and coil spring. The upper clip piece has a bottom portion that defines a concavity portion for defining a hair holding space to hold hair in a bundled state. A finger is connected to the upper clip piece through a pivot connection and for holding hair in a bundled state. A guide loop is connected to a rear end portion of the finger through a pivot connection. The guide loop prevents hair from entering a joint portion defined by the finger and the upper clip piece.

Abstract: A hair clip is provided. The hair clip has a lower clip piece and an upper clip piece connected through a pivot connection with a hinge pin and coil spring. The upper clip piece has a bottom portion that defines a concavity portion for defining a hair holding space to hold hair in a bundled state. A finger is connected to the upper clip piece through a pivot connection and for holding hair in a bundled state. A guide loop is connected to a rear end portion of the finger through a pivot connection. The guide loop prevents hair from entering a joint portion defined by the finger and the upper clip piece.

Abstract: A light unit for a display device is used as a back light of an LCD panel and adapted to allow light entered from the side to exit in a perpendicular direction. The light unit includes a light source emitting white light; a light guide plate located at one side of the light source to transmit the light from the light source therethrough; a color dispersion sheet located opposite to the front surface of the light guide plate to refract the light transmitted through the light guide plate at different angles according to wavelength and to reflect the refracted light back into the light guide plate; and a diffraction pattern formed on at least one of the front surface and rear surface of the light guide plate to allow the light to pass through the color dispersion sheet to exit at the same angle.

Abstract: Disclosed is a lens system installed in a mobile communication terminal, comprising: a first lens including at least one aspherical plane and having a positive refractivity; a perforated iris separated from the first lens by a designated distance for preventing unnecessary incident light from being incident onto an optical system; a second lens separated from the perforated iris by a designated distance, including at least one aspherical plane and having a positive refractivity; and a third lens separated from the second lens by a designated distance, including at least one aspherical plane and having a negative refractivity, wherein the first lens, the perforated iris, the second lens and the third lens are arranged sequentially from a subject, and the perforated iris is located between the first lens and the second lens.

Abstract: Disclosed herein is a light unit for a display device, which is used as a back light of a liquid crystal display(LCD) panel. This is adapted to allow light entered thereinto from the side to exit in a direction perpendicular to the light unit.

Abstract: Disclosed is a light unit used for backlighting a display device such as an LCD panel, which emits perpendicularly-directed white surface light by using lateral monochromatic light. The light unit of the invention comprises: a monochromatic light source for emitting monochromatic light; a light guide plate placed at the side of the monochromatic light source, and having a hologram pattern formed on at least one of front and rear faces oriented perpendicular to incident light introduced from the monochromatic light source for emitting light in a direction substantially perpendicular to the incidence direction of light; and a fluorescent layer applied on the front face of the light guide plate for converting perpendicularly-directed emitted light into white light.

Abstract: An image sensor module with a zooming function is disclosed. The sensor module consists of first and second barrels for respectively holding condensing lenses used for image capture, and a housing having a guide channel at a sidewall thereof and movably and stably receiving the first extensions of the first and second barrels in the guide channel such that the first and second barrels are moved along a focusing axis of the condensing lenses. The sensor module also has a motor for generating a rotating force, a motor gear formed on the output shaft of the motor, and a means for controlling the interval between the first and second barrels by converting a rotating action of the motor gear into a linear movement of the first and second barrels in a horizontal direction. In the sensor module used in a variety of electronic apparatuses, the condensing lenses are movable to change their positions, thus accomplishing a zooming effect while precisely condensing light beams to produce clear images.

Abstract: An image sensor module with a zooming function is disclosed. The sensor module consists of first and second barrels for respectively holding condensing lenses used for image capture, and a housing having a guide channel at a sidewall thereof and movably and stably receiving the first extensions of the first and second barrels in the guide channel such that the first and second barrels are moved along a focusing axis of the condensing lenses. The sensor module also has a motor for generating a rotating force, a motor gear formed on the output shaft of the motor, and a means for controlling the interval between the first and second barrels by converting a rotating action of the motor gear into a linear movement of the first and second barrels in a horizontal direction. In the sensor module used in a variety of electronic apparatuses, the condensing lenses are movable to change their positions, thus accomplishing a zooming effect while precisely condensing light beams to produce clear images.

Abstract: Disclosed is a positive active material for a rechargeable lithium battery and a method of preparing the same. The positive active material includes a LiCoO2 core and a metal selected from a group consisting of Al, Mg, Sn, Ca, Ti, Mn and mixtures thereof. The metal has a concentration gradient from a surface of the core to a center of the core. The method of preparing a positive active material for a rechargeable lithium battery includes the steps of dissolving a metal compound in alcohol to prepare a metal compound solution in a sol state, coating LiCoO2 with the metal compound solution in the sol state and sintering the coated LiCoO2 at 150 to 500° C.

Abstract: Disclosed is a positive active material for a rechargeable lithium battery and a method of preparing the same. The positive active material includes a LiCoO2 core and a metal selected from a group consisting of Al, Mg, Sn, Ca, Ti, Mn and mixtures thereof. The metal has a concentration gradient from a surface of the core to a center of the core.

Abstract: A SCSI device available for breakdown prediction and self-examination or a breakdown prediction and self-examination method by this device which increases the overall system performance through reducing the loading of a master I2C processor and SCSI bus, by reporting to the master I2C processor only when necessary, after an I2C processor reads the status of the SCSI device.

Abstract: A roller for rolling an electrode composite plate of a storage cell, including a cylindrical body having an inner space and a heater installed in the body for heating the electrode composite plate is provided.According to the present invention, it is possible to prevent stress concentrations and to easily perform thickness control and winding by heating and rolling the electrode composite plate during manufacturing of a cylindrical electrical storage cell.

Abstract: A battery terminal case includes an outer case into which a battery is inserted such that an anode and a portion of a cathode can of a battery can be enclosed; a cathode terminal extension member inserted into and nested inside the outer case and contacting the portion of the cathode can; and an anode terminal extension member inserted into the inside of the cathode terminal extension member and contacting the anode of the battery. Accordingly, by using the anode and cathode terminal extension members respectively contacting the anode and the cathode of the battery, damage to the battery itself can be prevented since welding is not necessary during the manufacturing of a battery pack, and contact defects between the battery and the terminal in the conventional terminal case, occurring as the elastic force of the terminal weakens, can be prevented.