Abstract: A lens driving device includes a substrate which generates surface acoustic waves on its surface and a movable unit which is coupled to an optical lens and executes translation above the substrate using the surface acoustic waves. The lens driving device can implement translation of the lens without a separate mechanism, unlike the conventional driving devices using motors and screws, thereby satisfying the recent trend towards miniaturization and lightness to be used in a variety of industrial fields that use optical lenses.

Abstract: A multifunctional video apparatus and a method of providing a user interface (UI) thereof. The multifunctional video apparatus has diverse functions such as image capturing, image reproduction, image editing, image input/output from/to an external device, etc., and provides a UI capable of performing the above-described functions more conveniently.

Abstract: In a display apparatus and a method for driving the display apparatus, the display apparatus includes a display panel and a gate driving part. The display panel has a gate line, and a gate driving part has a plurality of stages and a plurality of signal lines. At least one of the stages includes a transferring stage sequentially driving the stage, and an output stage partially driving the gate line, in response to a signal outputted from the transferring stage and a driving area selection signal. Accordingly, the display apparatus is partially driven, so that current consumption may be decreased, the display apparatus may be more safely driven, and a position, a size and the number of a non-display area may be more easily controlled.

Abstract: An electromagnetic scanning micro-mirror is provided with a magnetic field generator for supplying a magnetic field, a mirror plate having a reflective plane and a frame structure attached to a rear surface of the reflective plane, a substrate to surround the mirror plate, a pair of torsion bars to connect the mirror plate to the substrate, and a magnetic substance provided at the rear surface of the reflective plane of the mirror plate and adapted to generate a drive force by interacting with the magnetic field supplied from the magnetic field generator, wherein the mirror plate performs a rotation operation about the torsion bars, which define the rotating axis of the mirror plate, by use of the drive force generated from the magnetic substance.

Abstract: According to one exemplary embodiment, a frequency synthesizer module includes a loop filter, where the loop filter includes a capacitor having a first terminal and a second terminal. The frequency synthesizer module further includes a loop filter calibration module coupled to the capacitor in the loop filter. The loop filter calibration module causes an initial capacitance between the first terminal and the second terminal of the capacitor to increase to a target capacitance when the loop filter is in a calibration mode. The target capacitance can causes in increase in control of a bandwidth of the loop filter and a reduction in percent error of a unity gain bandwidth of the loop filter. The loop filter further includes a switched capacitor array configured to cause the initial capacitance to increase to the target capacitance in response to a digital feedback signal provided by the loop filter calibration module.

Abstract: An apparatus for cleaning semiconductor wafers includes a chamber, a bubbler having a vapor generating part for generating alcohol vapor and a spray pipe for spraying the alcohol vapor into the chamber, a gas supply nozzle for spraying gas into the chamber to dry the wafers, a liquid supply nozzle for supplying cleaning liquid into the chamber and a discharge system. The spray pipe of the bubbler has a liquid retention portion that keeps condensate of the alcohol vapor from issuing into the chamber. The gas supply nozzle has a spray outlet configured to spray the same amount of the drying gas onto all of the wafers in the chamber. The liquid supply nozzle has liquid supply openings only in a side portion thereof so that liquid alcohol will not become trapped therein.

Abstract: An apparatus for treating an edge of a semiconductor substrate includes an etchant supply nozzle for supplying a first etchant to the edge of the semiconductor substrate. The apparatus further includes a shielding cover for preventing an etchant from flowing to a shielding surface of the semiconductor substrate. The shielding cover is movable in an upward and downward direction. The apparatus also includes a device for cleaning the edge of the semiconductor substrate. According to the apparatus, after a wafer edge is etched, foreign substances remaining at the wafer edge is efficiently removed.

Abstract: A display device includes a display panel having a first substrate and a second substrate opposite to the first substrate; a transparent film formed on the second substrate; and a buffer layer formed between the second substrate and the transparent film.

Abstract: According to one exemplary embodiment, a frequency synthesizer module includes a loop filter, where the loop filter includes a capacitor having a first terminal and a second terminal. The frequency synthesizer module further includes a loop filter calibration module coupled to the capacitor in the loop filter. The loop filter calibration module causes an initial capacitance between the first terminal and the second terminal of the capacitor to increase to a target capacitance when the loop filter is in a calibration mode. The target capacitance can causes in increase in control of a bandwidth of the loop filter and a reduction in percent error of a unity gain bandwidth of the loop filter. The loop filter further includes a switched capacitor array configured to cause the initial capacitance to increase to the target capacitance in response to a digital feedback signal provided by the loop filter calibration module.

Abstract: The present invention relates to a variably focusing mirror for realizing an automatic focusing and optical zooming of a miniature camera module, the mirror comprising a driving part having a supporting board and more than one permanent magnet attached on the supporting board; and a mirror having a coil, a reflective surface of which a curvature is changed by the magnitude and the direction of a current flowing through the coil and a thin film on which the reflective surface is incorporated. The variably focusing mirror according to the present invention can realize a focusing and an optical zooming by adjusting a curvature radius of a reflective surface. Therefore, it can remarkably decrease the volume of a camera module and be used in various applications requiring for a miniature camera module.

Abstract: A local oscillator circuit for generating a local frequency signal is provided. The local oscillator circuit may cooperate with a radio circuit for providing wireless reception or transmission. The radio circuit performs modulation or demodulation processes with reference to a defined carrier signal frequency. The local oscillator circuit has a voltage controlled oscillator that generates a VCO signal at frequency different than the carrier frequency. A frequency scaling circuit applies a scaling factor to the VCO signal, with the scaled signal generated at the frequency of the defined carrier frequency.

Abstract: The present invention relates to a small form factor camera module, more particularly, to a small form factor camera module having a mechanical iris and a shutter not only to improve an image quality by adjusting an amount of a light entering an image sensor but also to remarkably reduce a volume of the entire system by using an electromagnetic force and therefore to be applied to various applications which require for a small form factor camera module including a handheld terminal and so on, contrary to the existing electronic shutter.

Abstract: Disclosed is a device for reducing deterioration of image quality which can get rid of speckle by equalizing a laser from a light source on a screen by vibrating a reflective mirror installed between the light source and the screen at a predetermined amplitude. The device for reducing deterioration of image quality in a display system using a laser as a light source includes: a reflective mirror formed at the path of light positioned between the light source and a screen, for reflecting the laser; and a driving unit connected to the reflective mirror and vibrating the reflective mirror at a predetermined amplitude by using an electromagnetic force.

Abstract: A system for direct modulation is disclosed. Embodiments of the direct modulator for shift-keying modulation include impressing baseband data on a radio frequency (RF) signal at an oscillator by controlling a digital divider using a sigma-delta modulator.

Abstract: Disclosed herein are a surface acoustic wave linear motor that can be driven in opposite directions along a predetermined path, a package including the surface acoustic wave linear motor, and a lens actuator that is capable of performing an optical zoom function by adopting the surface acoustic wave linear motor package. The surface acoustic wave linear motor includes a substrate, through which a surface acoustic wave progresses, a movable part constructed such that the movable part can perform a translating movement in the opposite direction to the progressing direction of the surface acoustic wave, and electrodes for supplying the substrate with power to generate the surface acoustic wave in the substrate. According to the present invention, the surface acoustic wave linear motor is capable of performing a translating movement without the provision of an additional mechanism, unlike the conventional actuator using the rotary motor, the gear, and the lead screw.

Abstract: Liquid used in manufacturing a semiconductor device is rapidly heated to a desired temperature at which the liquid is most effective at processing substrates. An apparatus for heating the liquid includes a chemical bath in which the liquid is stored, circulation piping connected to the chemical bath, so that the liquid can be circulated in a loop to and from the bath, and a heating system that includes a heating unit associated with the chemical bath and a heating unit associated with the circulation piping. Accordingly, the liquid present in the chemical bath and the liquid flowing through the circulation piping can be heated at the same time. Thus, the temperature of the liquid can be rapidly raised to a desired temperature suitable for the processing of the substrates.

Abstract: A varifocal mirror and a camera module comprising the same are disclosed. The varifocal mirror comprises a substrate, a thin film having a circumference supported by the substrate and a variable radius of curvature, and a reflective plane attached to the thin film to reflect light. The reflective plane has a radius of curvature varying in response to variation in the radius of curvature of the thin film. The camera module embodies focus and optical zoom functions via actuation of the varifocal mirror instead of using an electromagnetic actuator, a step motor and the like when adjusting positions of lens units, significantly reducing a volume of the overall system. With this structure, the camera module can be applied to various portable digital assistances requiring a minimized camera module, such as PDAs, mobile phones and the like.

Abstract: Disclosed herein is an electromagnetic scanning micro-mirror for use in an optical scanning device. The electromagnetic micro-mirror, which is designed to reflect an input light beam using an electromagnetic force, is able to perform a rotating operation, to achieve a modulation in a path of a reflected light beam. The electromagnetic scanning micro-mirror comprise a magnetic field generator for supplying a magnetic field, a mirror plate having a reflective plane and a frame structure attached to a rear surface of the reflective plane, a substrate to surround the mirror plate, a pair of torsion bars to connect the mirror plate to the substrate, and a magnetic substance provided at the rear surface of the reflective plane of the mirror plate and adapted to generate a drive force by interacting with the magnetic field supplied from the magnetic field generator.

Abstract: A micro actuator for controlling a focal depth includes: a lens for forming a focal point by focusing light coming from a light source; a lens mounting unit having a lens mounted therein and allowing the lens to move in one axial direction; and an electromagnetic force generator consisting of a constant magnetic field generating member having a magnetic field in a predetermined direction and a variable magnetic field generating member for changing direction and strength of a magnetic field according to direction and amount of a current, installed at and around the lens mounting unit and causing the lens to move in a direction of an electromagnetic force generated by interaction of the two magnetic field generating members. The micro actuator for controlling a focal depth can be fabricated in a ultra-compact size, available for a mass production, and has a fast response speed.

Abstract: A substrate dryer includes, among other things, means for generating isopropyl alcohol bubbles, and a vibrator to atomize stored isopropyl alcohol. A heater may be provided to heat pumped isopropyl alcohol, as wells as a spray nozzle to spray the heated IPA to the vibrator. It is possible to increase the concentration of the isopropyl alcohol supplied for the purpose of drying the substrate. Improved substrate drying is achieved.