Abstract: A transmission line conversion apparatus connecting a parallel transmission line to a coplanar waveguide (CPW) is provided. To this end, the CPW including a transmission line composed of a signal line and a ground line which is formed on one surface of a dielectric substrate, and a parallel transmission line connected to the CPW, at a predetermined angle with respect to a substrate constituting the CPW, and composed of a signal line and a ground line, are proposed. In addition, the signal line of the CPW and the signal line of the parallel transmission line are connected to each other, and the ground line of the CPW and the ground line of the parallel transmission line are connected to each other. As such, by connecting the CPW to the parallel transmission line, a return loss can be minimized.

Abstract: A semiconductor package includes a semiconductor chip, a package substrate, a first attaching member, a second attaching member, a connecting member and a molding member. The package substrate has a central region and an edge region. The first attaching member attaches the semiconductor chip to the central region of the package substrate. The second attaching member is arranged in the edge region of the package substrate. The second attaching member includes first attaching patterns extending in a first direction, and second attaching patterns extending in a second direction. The connecting member electrically connects the semiconductor chip to the package substrate. The molding member is attached to the package substrate using the second attaching member to molding the semiconductor chip.

Abstract: An ultra wide band (UWB) antenna with a unidirectional radiation pattern, including: a power feeder including a connecting point at one end and a feeding point at the other end; and a radiator including a dipole part, connected with the feeding point on the basis of the feeding point, and a loop part, whose both ends are connected with both ends of the dipole part respectively to be closed-loop-shaped. Accordingly, a UWB antenna with a unidirectional radiation pattern which mainly performs radiation perpendicular to an antenna plane can be provided.

Abstract: A loop antenna is provided having a matching circuit integrally formed includes a radiator which is formed in a loop shape; and a matching circuit including an extension part extended from one side of the radiator to an inner side of the loop and a bend part bent from an end of the extension part several times. Accordingly, the space for the installation of the loop antenna can be reduced and the design modification of the matching circuit can be facilitated.

Abstract: Provided is a method of performing a routing and allocating a resource in a wireless sensor network. The method includes electing one or more cluster heads, each representing each of one or more clusters comprised of a plurality of sensor nodes, selecting a routing path between the cluster heads and the plurality of sensor nodes, selecting a frame length based on elements and distribution methods of the wireless sensor network and the routing path, forming a time slot resource allocation table for communication between the cluster heads, and exchanging the time slot resource allocation table between the cluster heads separated by one hop. The present invention can enhance the reliability of the wireless sensor network and QoS by effectively performing routing and allocating resources in such a manner that various data requirements can be satisfied.

Abstract: The present invention relates to a method for manufacturing a gallium nitride single crystalline substrate, including (a) growing a gallium nitride film on a flat base substrate made of a material having a smaller coefficient of thermal expansion than gallium nitride and cooling the gallium nitride film to bend convex upwards the base substrate and the gallium nitride film and create cracks in the gallium nitride film; (b) growing a gallium nitride single crystalline layer on the crack-created gallium nitride film located on the convex upward base substrate; and (c) cooling a resultant product having the grown gallium nitride single crystalline layer to make the convex upward resultant product flat or bend convex downwards the convex upward resultant product and at the same time to self-split the base substrate and the gallium nitride single crystalline layer from each other at the crack-created gallium nitride film interposed therebetween.

Abstract: A method for providing multimedia and a multimedia apparatus applying the same. The method for providing multimedia includes searching for content related to keywords and generating channels to provide the content found as a result of searching. Therefore, it is possible for a user to more conveniently use Internet multimedia content using a TV.

Abstract: An apparatus for manufacturing a semiconductor device and a method for manufacturing a semiconductor device using the apparatus may be provided. The manufacturing apparatus may include a liquid supplying portion for forming a liquid film, and a gas supplying unit that may rotate to discharge gas at a wide range of angles. The manufacturing method may include forming a shape and size of a liquid film common to the shape and size of an exposure region through adjusting the direction and pressure in which gas may be discharged to the substrate. Thus, the speed at which a substrate may be moved may be increased, and morphology differences of a substrate may be reduced.

Abstract: A compound semiconductor device and method of manufacturing the same. The method includes coating a plurality of spherical balls on a substrate and selectively growing a compound semiconductor thin film on the substrate on which the spherical balls are coated. The entire process can be simplified and a high-quality compound semiconductor thin film can be grown in a short amount of time in comparison to an epitaxial lateral overgrowth (ELO) method.

Abstract: An antenna device for a portable terminal, which allows a whip antenna and helical antenna of a terminal to be retracted and withdrawn along an extension from the terminal, while not causing them to protrude out of the terminal. The antenna device provided with a whip antenna and helical antenna further includes an antenna housing disposed at a desired position in the main body, which permits the whip antenna to be retracted and withdrawn through the helical antenna, while causing the helical antenna to be withdrawn along an extension from the main body at the same time, and permits the helical antenna to be retracted, so that it can be inserted into the main body; and a housing coupling portion disposed in the main body for supporting the antenna housing.

Abstract: An apparatus and method for processing a substrate using neutralized beams are provided. A substrate processing apparatus includes an ion source generating device configured to form an ion source. An ion extraction device is configured to extract and accelerate ions from the ion source. An ion neutralizing device is configured to convert the ions extracted and accelerated from the ion extraction device into neutralized beams. A remaining portion of the ions extracted and accelerated from the ion extraction device is not converted into the neutralized beams. A substrate support is configured to support a substrate such that the neutralized beams are directed towards the substrate support. A substrate power supply is configured to apply a voltage to the substrate support such that the remaining portion of the ions that is not converted into the neutralized beams is directed away from the substrate support by the applied voltage of the substrate.

Abstract: An antenna device for a portable wireless terminal including a main built-in antenna for transmitting and receiving signals of one and more frequency bands is provided. The antenna device includes an external case on which a wireless terminal is disposed. The external case comprises an antenna radiator of at least one. In addition, the antenna device includes a control part for selectively controlling use of at least one of the at least one antenna radiator and a main built-in antenna of the wireless terminal.

Abstract: A semiconductor package circuit board has an indicator for specifying a location of a defective circuit board unit. The semiconductor package circuit board includes circuit board units arranged in an m-by-n matrix pattern. The indicator has marking areas arranged in an m-by-n matrix pattern so that the marking areas are marked in correspondence to locations of identified defective circuit board units of the circuit board units. An operator can readily put a defective mark on the indicator without any confusion. The operator or a sensor can readily recognize the defective mark. Since the indicator can be formed on the circuit board unit, the integration of the semiconductor package circuit board can be increased, and the productivity can be substantially improved. Furthermore, a pathway of the sensor can be reduced, and interferences that might occur if the sensor moves can be hindered.

Abstract: A stacked semiconductor module, a method of fabricating the same, and an electronic system using the module are provided. A first semiconductor module having a plurality of semiconductor devices mounted on a rigid printed circuit board (PCB) and a second semiconductor module having a plurality of other semiconductor devices mounted on a flexible PCB are provided. On the rigid PCB a number L of first tabs may be disposed on a first surface, and a number K of second tabs may be disposed on a second surface of the rigid PCB. The flexible PCB may have a number M of third tabs on a third surface, and a number N of fourth tabs on a fourth surface of the flexible PCB. The second tabs may be combined with the third tabs using a conductive adhesive. The third tabs may be electrically connected to corresponding ones of the second tabs.

Abstract: An apparatus treats harmful particulate matter generated through combustion. The apparatus includes a concentrator concentrating the harmful particulate matter and a plasma generator burning the concentrated harmful particulate matter. Thereby, the harmful particulate matter can be efficiently removed.

Abstract: A method for fabrication a substrate for a liquid crystal display device includes: forming a color filter layer on a substrate; coating an organic layer on the color filter layer; irradiating a first light onto the organic layer; irradiating a second light onto the organic layer through a mask having a transmitting portion and a shielding portion, an energy density of the first light smaller than an energy density of the second light; and forming an overcoat layer and a column spacer by developing the organic layer.

Abstract: Provided is a biometric authentication method. A biometric authentication method in accordance with an aspect of the present invention includes generating a first one-time authentication template from biometric information using one-time transform information, and requesting authentication, comparing the first one-time authentication template with a one-time registration template, updating the one-time registration template and the one-time transform information when authentication is achieved according to a result of the comparison, wherein the updated one-time transform information is used to generate a second one-time authentication template to be authenticated according to the result of the comparison with the updated one-time registration template when successive authentication is requested.

Abstract: Provided is a method for preparing a compound semiconductor substrate. The method includes coating a plurality of spherical balls on a substrate, growing a compound semiconductor epitaxial layer on the substrate coated with the spherical balls while allowing voids to be formed under the spherical balls, and cooling the substrate on which the compound semiconductor epitaxial layer is grown so that the substrate and the compound semiconductor epitaxial layer are self-separated along the voids. The spherical ball treatment can reduce dislocation generations. In addition, because the substrate and the compound semiconductor epitaxial layer are separated through the self-separation, there is no need for laser lift-off process.

Abstract: A photosensitive body to stably maintain an electric connection between a photosensitive drum and a shaft includes a photosensitive drum, a shaft serving as a rotational center of the photosensitive drum, and a grounding device to electrically connect the photosensitive drum and the shaft. The grounding device includes a shaft connecting portion electrically connected to the shaft, and an anchor portion fixedly stuck in an inner peripheral surface of the photosensitive drum. The anchor portion moves from a first state, in which the anchor portion is extended in a longitudinal direction of the photosensitive drum, to a second state, in which the anchor portion is extended in a radial direction of the photosensitive drum, and is fixed to the photosensitive drum.

Abstract: A method and apparatus for testing a liquid crystal display device are provided to detect a defect location precisely and rapidly without requiring a jig. The method includes providing an inspection apparatus as a removable portion of the liquid crystal display device; inspecting the display part of the liquid crystal display device using the inspection apparatus; removing the inspection apparatus from the liquid crystal display device after the inspection is completed; and attaching driving circuits to the liquid crystal display device having the inspection apparatus removed therefrom.