Abstract:
A light emitting device may include a substrate, an n-type clad layer, an active layer, and a p-type clad layer. A concave-convex pattern having a plurality of grooves and a mesa between each of the plurality of grooves may be formed on the substrate, and a reflective layer may be formed on the surfaces of the plurality of grooves or the mesa between each of the plurality of grooves. Therefore, light generated in the active layer may be reflected by the reflective layer, and extracted to an external location.
Abstract:
A semiconductor device includes a device chip coupled to an electrode chip. The device chip includes a first device electrode on a first substrate, and the electrode chip includes a first pad electrode extending at least partially through a second substrate. The first pad electrode is electrically connected to the first device electrode and includes spaced conductive sections which serve as a heat dissipating structure to transfer heat received from the device chip and the electrode chip. A method for making a semiconductor device includes using the substrate of the electrode chip as a support during thinning the substrate of the device chip.
Abstract:
Example embodiments are directed to a light-emitting device including a patterned emitting unit and a method of manufacturing the light-emitting device. The light-emitting device includes a first electrode on a top of a semiconductor layer, and a second electrode on a bottom of the semiconductor layer, wherein the semiconductor layer is a pattern array formed of a plurality of stacks. A space between the plurality of stacks is filled with an insulating layer, and the first electrode is on the insulating layer.