Abstract: The present disclosure provides a high electron mobility transistor including a channel layer; a barrier layer on the channel layer and configured to induce formation of a 2-dimensional electron gas (2DEG) to the channel layer; a p-type semiconductor layer on the barrier layer; a first passivation layer on the barrier layer and including a quaternary material of Al, Ga, O, and N; a gate electrode on the p-type semiconductor layer; and a source electrode and a drain electrode provided on both sides of the barrier layer and separated from the gate electrode.

Abstract: Provided is a light-emitting device including a body including a first semiconductor layer, an active layer, and a second semiconductor layer, a first electrode and a second electrode provided on a first surface of the body, the first electrode and the second electrode being in contact with the first semiconductor layer and the second semiconductor layer, respectively, and a third electrode and a fourth electrode provided on a second surface of the body, the third electrode and the fourth electrode being in contact with the first semiconductor layer and the second semiconductor layer, respectively.

Abstract: Provided is a dispenser for a solution including a reservoir configured to hold a suspension of micro light-emitting diodes (LEDs) suspended in a solvent; a stirrer configured to stir the suspension in the reservoir; a discharge path including a first valve configured to control outflow of the suspension from the reservoir; a filling path including a second valve configured to control inflow of the suspension into the reservoir; a hydraulic path including a third valve configured to control a pressure inside the reservoir; and a washing path connected to the first valve and configured to input a washing fluid for washing the discharge path into the discharge path, wherein the first valve includes a multi-way valve configured to selectively connect the discharge path to one of the reservoir and the washing path.

Abstract: A micro-semiconductor chip wet alignment apparatus is provided. The micro-semiconductor chip wet alignment apparatus includes a semiconductor chip wet supply module configured to supply the plurality of micro-semiconductor chips and a liquid onto the transfer substrate so that the plurality of micro-semiconductor chips are flowable on the transfer substrate; and a chip alignment module including an absorber capable of relative movement along a surface of the transfer substrate and configured to absorb the liquid so that the plurality of micro-semiconductor chips are aligned in the plurality of grooves.

Abstract: Provided are a semiconductor chip, a method of preparing a semiconductor chip, and an apparatus for manufacturing a semiconductor chip. The method includes separating a semiconductor chip from a laminate, the laminate including a substrate, a lift-off layer on the substrate, and a semiconductor layer on the lift-off layer. The method further includes removing the lift-off layer with an etchant by applying a magnetic field while contacting the laminate and the etchant, to thereby prepare a semiconductor chip.

Abstract: Provided is a method of manufacturing a display, the method including a first operation of transferring a plurality of micro light emitting diodes (LEDs) to a plurality of wells of an interposer through a fluidic self assembly (FSA) process, a second operation of aligning a driving substrate on the interposer, a third operation of injecting a penetrating solvent between the interposer and the driving substrate, such that the penetrating solvent penetrates between the plurality of micro LEDs and the plurality of wells, and a fourth operation of transferring the plurality of micro LEDs to the driving substrate by radiating light to the interposer to vaporize the penetrating solvent.

Abstract: A chemical lift-off device includes a first chamber including a first bath containing a first chemical solution and configured to receive a semiconductor light-emitting device on a substrate, such that the semiconductor light-emitting device is partially separated from the substrate by being submerged in the first chemical solution, a cleaning bath containing deionized water and configured to receive the semiconductor light-emitting device that is partially separated from the substrate, and a second chamber including a separator including a chemical solution sprayer configured to spray a second chemical solution toward the semiconductor light-emitting device that is partially separated from the substrate, such that the semiconductor light-emitting device is completely separated from the substrate by being sprayed with the second chemical solution and a recovery assembly provided at a lower portion of the separator and configured to recover the semiconductor light-emitting device that is completely separated f

Abstract: A display device and a method of manufacturing the display device are provided. The display device includes a display substrate including a driving circuit; an array layer provided on the display substrate and including a plurality of grooves; a micro-semiconductor chip provided in a groove of the plurality of grooves, the micro-semiconductor chip including: an n-type semiconductor layer; an active layer provided on the n-type semiconductor layer; a p-type semiconductor layer provided on the active layer; and a first electrode provided on the p-type semiconductor layer; and a second electrode connected to the n-type semiconductor layer from a lower surface of the display substrate; a first wiring connected to the first electrode; and a second wiring connected to the second electrode.

Abstract: A refrigerator includes a cabinet having a storage space, a hinge bracket configured to be installed on an upper wall of the cabinet and having a hinge shaft, a door configured to be connected to the hinge shaft and to open and close the storage space while rotating, and a hinge cover configured to be installed on the upper wall of the cabinet and to cover the hinge bracket, in which the hinge cover includes a first mounting part and a second mounting part disposed to be spaced apart in a horizontal direction, a bracket cover detachably mounted on one mounting part of the first mounting part and the second mounting part disposed at a position corresponding to the hinge bracket and configured to cover the hinge bracket, and a shielding member detachably mounted on another mounting part of the first mounting part and the second mounting part.

Abstract: A refrigerator includes a cabinet having a storage space, a hinge bracket configured to be installed on an upper wall of the cabinet and having a hinge shaft, a door configured to be connected to the hinge shaft and to open and close the storage space while rotating, and a hinge cover configured to be installed on the upper wall of the cabinet and to cover the hinge bracket, in which the hinge cover includes a first mounting part and a second mounting part disposed to be spaced apart in a horizontal direction, a bracket cover detachably mounted on one mounting part of the first mounting part and the second mounting part disposed at a position corresponding to the hinge bracket and configured to cover the hinge bracket, and a shielding member detachably mounted on another mounting part of the first mounting part and the second mounting part.

Abstract: A refrigerator includes a cabinet having a storage space, a hinge bracket configured to be installed on an upper wall of the cabinet and having a hinge shaft, a door configured to be connected to the hinge shaft and to open and close the storage space while rotating, and a hinge cover configured to be installed on the upper wall of the cabinet and to cover the hinge bracket, in which the hinge cover includes a first mounting part and a second mounting part disposed to be spaced apart in a horizontal direction, a bracket cover detachably mounted on one mounting part of the first mounting part and the second mounting part disposed at a position corresponding to the hinge bracket and configured to cover the hinge bracket, and a shielding member detachably mounted on another mounting part of the first mounting part and the second mounting part.

Abstract: A refrigerator includes a cabinet having a storage space, a hinge bracket configured to be installed on an upper wall of the cabinet and having a hinge shaft, a door configured to be connected to the hinge shaft and to open and close the storage space while rotating, and a hinge cover configured to be installed on the upper wall of the cabinet and to cover the hinge bracket, in which the hinge cover includes a first mounting part and a second mounting part disposed to be spaced apart in a horizontal direction, a bracket cover detachably mounted on one mounting part of the first mounting part and the second mounting part disposed at a position corresponding to the hinge bracket and configured to cover the hinge bracket, and a shielding member detachably mounted on another mounting part of the first mounting part and the second mounting part.

Abstract: A refrigerator includes a cabinet having a storage space, a hinge bracket configured to be installed on an upper wall of the cabinet and having a hinge shaft, a door configured to be connected to the hinge shaft and to open and close the storage space while rotating, and a hinge cover configured to be installed on the upper wall of the cabinet and to cover the hinge bracket, in which the hinge cover includes a first mounting part and a second mounting part disposed to be spaced apart in a horizontal direction, a bracket cover detachably mounted on one mounting part of the first mounting part and the second mounting part disposed at a position corresponding to the hinge bracket and configured to cover the hinge bracket, and a shielding member detachably mounted on another mounting part of the first mounting part and the second mounting part.