Abstract: A burn-in board connection device includes a first connection unit to hold a burn-in board and move in a first direction perpendicular to the burn-in board that is inserted in a chamber of a burn-in test device, a second connection unit to move in a second direction parallel to the burn-in board to attach/detach the burn-in board that is held by the first connection unit to/from a connector disposed in the chamber. A burn-in board connection method includes coupling a finger to the burn-in board by moving the finger in a first direction, attaching the burn-in board to a connector by moving the finger in a second direction, and driving the finger by converting a rotation of a servo motor into a linear movement of the finger.

Abstract: A microfluidic system for monitoring or detecting a change in a parameter of an input substance, which includes a microfluidic device having a tissue chamber and a tissue analog placed in the tissue chamber, wherein the tissue analog has a vessel structure mimicking naturally occurring vessel network incorporated in the tissue analog.

Abstract: An apparatus for holding stacked trays includes a cover and a hooking unit. The cover protects an upper surface of the stacked trays. The hooking unit is connected to the cover. The hooking unit is drawn from at least two side surfaces of the cover along the side surfaces of the stacked trays, to hold both lower ends of the stacked trays. Thus, the stacked trays may be easily held only by hooking the hook on the lower end of the stacked trays.

Abstract: A burn-in board connection device includes a first connection unit to hold a burn-in board and move in a first direction perpendicular to the burn-in board that is inserted in a chamber of a burn-in test device, a second connection unit to move in a second direction parallel to the burn-in board to attach/detach the burn-in board that is held by the first connection unit to/from a connector disposed in the chamber. A burn-in board connection method includes coupling a finger to the burn-in board by moving the finger in a first direction, attaching the burn-in board to a connector by moving the finger in a second direction, and driving the finger by converting a rotation of a servo motor into a linear movement of the finger.

Abstract: A system for facilitating the handling and transporting of semiconductor packages includes a stock of trays in which semiconductor packages can be held, and a tray carrier by which a stack of the trays can be easily handled using automated equipment and without producing dust. The tray carrier includes a frame having an open bottom end through which a stack of trays can be inserted into the frame, belt drums mounted on both sides of the bottom end of the frame, fork blocks mounted to the frame under the belt drums, and a belt extending from the belt drums through the fork blocks and across the open bottom end of the frame. When the tray carrier is placed over a stack of the trays, the belt surrounds the top and sides of the stack of trays. The fork blocks include prongs that are movable into the space constituting the open bottom end of the frame so as to support the bottom of the stack of trays.

Abstract: Provided is an apparatus for clamping a stack of trays that allows automation and prevents distribution of particles or foreign materials during a semiconductor fabrication process. In one embodiment, the apparatus includes a frame body surrounding the stack of trays, a plurality of belt drums, and a hook. Each belt drum is attached to one side of the frame body has a belt and spiral spring. The belt is structured to securely surround the stack of trays using the elastic tension of the spiral spring member mounted in the belt drum. The hook is structured to be rotatably connected to the frame body and slid under a bottom surface of the stack of trays to secure the stack of trays.

Abstract: A glass cassette for loading glass substrates for display panels includes an upper plate, a lower plate, side plates, a stopper and stepped support members. The lower plate is disposed substantially parallel to the upper plate. The side plates are disposed spaced apart from each other in a first direction and substantially parallel to each other. The side plates are connected to the upper plate and the lower plate. The stopper is disposed at an end portion of the glass cassette to limit a movement of the glass substrates in a second direction that is substantially perpendicular to the first direction to stop the movement of the glass substrates upon insertion. The stopper is connected between the upper plate and the lower plate. The stepped support members are disposed at each of the side plates while facing each other in the first direction in order to flatly support the glass substrates.

Abstract: A glass cassette for loading glass substrates for display panels includes an upper plate, a lower plate, side plates, a stopper and stepped support members. The lower plate is disposed substantially parallel to the upper plate. The side plates are disposed spaced apart from each other in a first direction and substantially parallel to each other. The side plates are connected to the upper plate and the lower plate. The stopper is disposed at an end portion of the glass cassette to limit a movement of the glass substrates in a second direction that is substantially perpendicular to the first direction to stop the movement of the glass substrates upon insertion. The stopper is connected between the upper plate and the lower plate. The stepped support members are disposed at each of the side plates while facing each other in the first direction in order to flatly support the glass substrates.

Abstract: An artificial tissue including an internal mass transport network having a plurality of channels, wherein the channels are designed to substantially mimic naturally occurring vascular network and a method for creating an internal transport system within a tissue scaffold to improve circulation, diffusion, and mass transport properties by utilizing computer-aided tissue engineering (CATE). The artificial tissue has the internal mass transport network of channels embedded, deposited, or molded within a scaffold, wherein the channels are made from a biodegradable transporting material and the scaffold is made from a scaffold material. The artificial tissue of the invention includes a basic circulatory system embedded within the tissue scaffold. This system provides mass transport throughout the entire scaffold and degrades after the new circulatory system develops.

Abstract: A process and apparatus are provided for manufacturing complex parts and devices which utilize a CAD environment to design a part or device to be created (FIG. 1); Boolean, scaling, smoothing, mirroring, or other operations to modify the CAD design; a software interface to convert the CAD designed part (Data Process System) or device into a heterogeneous material and multi-part assembly model (Design Input Model) which can be used for multi-nozzle printing; and a multi-nozzle system to print the designed part or device using different, specialized nozzles (Tissue substitutes).

Abstract: The present invention provides an electroactive solid-state actuator, including a solid polymer electrolyte film having first and second main surfaces facing each other, and first and second conductive polymer layers infiltrated into the first and second main surfaces of the solid polymer electrolyte film. Further, a method of manufacturing the electroactive solid-state actuator is provided, the method including preparing a solid polymer film having first and second main surfaces facing each other, infiltrating a monomer of a conductive polymer into the first and second main surfaces of the solid polymer film, followed by polymerization, to form first and second conductive polymer layers, and immersing the solid polymer film into an ionic liquid or liquid electrolyte to be converted to an electrically conductive polymer.

Abstract: A method of producing a polymer capacitor includes forming a first electrode on a surface of a first ion exchange resin solid and coating a mixture of an ion exchange resin solution and a salt on the other surface of the first resin; putting a second ion exchange resin solid which has a second electrode formed on a surface thereof on the coated layer, and conducting lamination of the resulting structure to produce a composite; dissolving the salt to form pores; and filling the pores with an electrolytic solution.

Abstract: The present invention provides a dielectric polymer actuator and an inchworm robot using the same. The dielectric polymer actuator comprises a laminate-type actuating part and a frame. The laminate-type actuating part is provided with at least one dielectric polymer film which has first and second surfaces positioned opposite to each other and a side interposed between the first and second surfaces and which includes an incompressible dielectric polymer. First and second compliant electrodes are connected to the first and second surfaces. The frame is formed along the side of the dielectric polymer film so that prestrain applied to the dielectric polymer film is about zero. When a voltage is applied through the first and second compliant electrodes to the dielectric polymer film, the laminate-type actuating part is warped in any one direction of first and second surface directions.

Abstract: A cassette for a substrate is provided, which includes: a frame; and a plurality sets of supporting members defining slots layered in a vertical direction, wherein each set of supporting members comprises: a plurality of first support bars that extend in a first horizontal direction, nave ends fixed to the frame, and mount the substrate; and a support wire that is coupled with the first support bars and has ends fixed to the frame.

Abstract: A lift for substrates is provided, which includes: a plurality of pallets for mounting the substrates and having first and second edges; a first pair of cables connected to the first edges of the pallets; a second pair of cables connected to the second edges of the pallets; and a drive unit moving the first and the second pair of cables to move the pallets upward and downward.

Abstract: The arrangement and method determine if an article requested in a retrieval request is destined for storage and retrieve the article prior to storage when it is determined that the article requested in a retrieval request is destined for storage.

Abstract: Disclosed is a speaker system that can be advantageously used in a television set. The speaker system has a support member which is provided with a partition wall and mounted on both sides of the television cabinet. A speaker is securely installed in the partition wall of the support member and provided with a frame. An amplifying horn is connected to the frame for collecting and amplifying the sound waves projected toward the frame. A cover is coupled to the rear side of the support member. The speaker system collects and amplifies not only the midrange-frequency and high-frequency sounds projected toward the front of the speaker, but also some of the sound waves projected in the backward direction of the speaker, thereby providing greatly amplified bass and harmonious and sensitive sound.

Abstract: A speaker system includes a speaker having a cone which converts an electric signal into a sound wave signal; a frame attached to a rear side of the speaker and having a plurality of sound wave radiating holes formed therein; and a sound wave amplifying horn for amplifying and radiating only a portion of sound waves which are radiated through the frame.

Abstract: A horizontal reactor for processing an elemental compound semiconductor growth is provided with a reactor housing having a sealed container, a susceptor with an upper surface provided with a plurality of substrate mounts which receive substrates, the upper surface positioned inside the reactor housing, a heater for heating the susceptor, a Group V gaseous material supply in a vertically upward direction from a lower center of the susceptor, and a Group III gaseous material supply with delivery gas in a vertically downward direction toward a center of the upper surface of the susceptor, wherein the Group III gaseous material and the Group V gaseous material form a reaction gas when mixed together and the horizontal reactor is further provided with a remaining reaction gas exhaust after contribution to the semiconductor growth.

Abstract: A speaker apparatus, in which sound wave is uniformly radiated to front and rear sides thereof, to prevent distortion of sound due to one way vibration. The speaker apparatus includes a bobbin to vibrate a vibrating plate according to a current applied to a voice coil, and a yoke is disposed at an inner side of the bobbin and spaced apart from the bobbin by a predetermined interval. A sound wave guiding member is disposed at an inner side of the yoke so as to guide the sound wave to the front side and the rear side of the speaker apparatus.