Abstract:
A phosphor dispenser includes: a nozzle having a space for accommodating the phosphor liquid, wherein an opening for ejecting the phosphor liquid is connected to the space; and a tappet reciprocally movable with respect to the nozzle to eject the phosphor liquid in the space through the nozzle, wherein the tappet includes a cylindrical unit having a cylindrical shape and a convex unit having a hemispherical shape that is convex towards the nozzle from the cylindrical unit, and the convex unit is formed of polycrystalline diamond (PCD).
Abstract:
Methods of forming through-silicon vias by using laser ablation. A method includes, laser drilling to form a plurality of grooves by irradiating a laser beam onto an upper surface of a silicon wafer, and grinding a lower surface of the silicon wafer to form a plurality of through-silicon vias by exposing the grooves on the lower surface of the silicon wafer.
Abstract:
A light-emitting diode (LED) package includes an LED chip, a phosphor film adhered to a top surface of the LED chip, and a molding phosphor covering a side surface of the LED chip.
Abstract:
A light-emitting device package may include a pre-mold and a molding member. The pre-mold may include an upper body having a inclined (e.g., concavely) plane from which a plurality of vertical holes passing through the upper body are formed and a lower body having an upper surface that meets the inclined (e.g., concavely) plane under the upper body to form a concave unit. The molding member may fill the plurality of vertical holes and the concave unit.
Abstract:
An optical pyrometer includes a receiving part having a receiving end for receiving light radiation of a heating unit, and a case part covering the receiving part, except for the receiving end of the receiving part, wherein a cross-sectional area of the receiving end of the receiving part perpendicular to a lengthwise direction of the receiving end of the receiving part decreases toward an end portion of the receiving end of the receiving part.
Abstract:
A light-emitting device package mold and a method of manufacturing a lens of a light-emitting device package. The light-emitting device package mold includes a convex unit, an inner circumference of which has a hemispherical shape; a flat panel unit that forms a flat panel by extending from an edge of the convex unit; a cylindrical unit extending in a vertical direction with respect to an upper surface of the flat panel unit; and an injection hole and a discharge hole that penetrate through the convex unit, wherein the discharge hole is formed in a horizontal direction with respect to the flat panel unit.