摘要:
There is provided a method of manufacturing a nitride semiconductor light emitting device, the method including: forming a light emitting structure on a substrate, the light emitting structure including first and second conductivity-type nitride semiconductor layers with an active layer interposed therebetween; forming a first conductivity-type nitride semiconductor layer, an active layer and a second conductivity-type nitride semiconductor layer sequentially stacked on a substrate; forming a first electrode to be connected to the first conductivity-type nitride semiconductor layer; forming a photoresist film on the second conductivity-type nitride semiconductor layer to expose a portion of the second conductivity-type nitride semiconductor layer; and forming a reflective metal layer and a barrier metal layer as a second electrode consecutively on the portion of the second conductivity-type nitride semiconductor layer exposed by the photoresist film and removing the photoresist film.
摘要:
A semiconductor light emitting device may include: a light emitting structure including an n-type semiconductor layer, a p-type semiconductor layer, and an active layer interposed therebetween; a first electrode connected to one of the n-type semiconductor layer and the p-type semiconductor layer; and a second electrode connected to the other of the n-type semiconductor layer and the p-type semiconductor layer. The first electrode may include a first electrode pad disposed in a central portion of one side of the light emitting structure and first to third branch electrodes connected to the first electrode pad, having a fork shape. The second electrode may include second and third electrode pads disposed separately in both corners of the other side opposing the one side and fourth to seventh branch electrodes connected thereto. The fourth and seventh branch electrodes may extend in an interdigitated manner between the first to third branch electrodes.
摘要:
A semiconductor light emitting device includes: a light emission structure in which a first conductive semiconductor layer, an active layer and a second conductive semiconductor layer are sequentially stacked; a first electrode formed on the first conductive semiconductor layer; an insulating layer formed on the second conductive semiconductor layer and made of a transparent material; a reflection unit formed on the insulating layer and reflecting light emitted from the active layer; a second electrode formed on the reflection unit; and a transparent electrode formed on the second conductive semiconductor layer, the transparent electrode being in contact with the insulating layer and the second electrode.
摘要:
A semiconductor light emitting device includes: first and second conductive type semiconductor layers; an active layer disposed between the first and second conductive type semiconductor layers; and first and second electrodes disposed on one surface of each of the first and second conductive type semiconductor layers, respectively, wherein at least one of the first and second electrodes includes a pad part and a finger part formed to extend from the pad part, and the end of the finger part has an annular shape. Because a phenomenon in which current is concentrated in a partial area of the finger part is minimized, tolerance to electrostatic discharge (ESD) can be strengthened and light extraction efficiency can be improved.
摘要:
A semiconductor light emitting device includes: first and second conductive type semiconductor layers; an active layer disposed between the first and second conductive type semiconductor layers; and first and second electrodes disposed on one surface of each of the first and second conductive type semiconductor layers, respectively, wherein at least one of the first and second electrodes includes a pad part and a finger part formed to extend from the pad part, and the end of the finger part has an annular shape. Because a phenomenon in which current is concentrated in a partial area of the finger part is minimized, tolerance to electrostatic discharge (ESD) can be strengthened and light extraction efficiency can be improved.
摘要:
A semiconductor light emitting device includes: a light emission structure in which a first conductive semiconductor layer, an active layer and a second conductive semiconductor layer are sequentially stacked; a first electrode formed on the first conductive semiconductor layer; an insulating layer formed on the second conductive semiconductor layer and made of a transparent material; a reflection unit formed on the insulating layer and reflecting light emitted from the active layer; a second electrode formed on the reflection unit; and a transparent electrode formed on the second conductive semiconductor layer, the transparent electrode being in contact with the insulating layer and the second electrode.
摘要:
The present invention relates to a vertical/horizontal light-emitting diode for a semiconductor. An exemplary embodiment of the present invention provides a semiconductor light-emitting diode comprising: a conductive substrate; a light-emitting structure including a first conductive semiconductor layer, an active layer and a second conductive semiconductor layer sequentially formed over the conductive substrate; a second conductive electrode including a conductive via that passes through the first conductive semiconductor and active layers to be connected with the second conductive semiconductor layer therein, and an electrical connector that extends from the conductive via and is exposed outside the light-emitting structure; a passivation layer for covering a dielectric and at least the side surface of the active layer of the light-emitting structure, the dielectric serving to electrically isolate the second conductive electrode from the conductive substrate, the first conductive semiconductor layer and the active layer; and a surface relief structure formed on the pathway of light emitted from the active layer. According to the present invention, a semiconductor light-emitting diode exhibiting enhanced external light extraction efficiency, especially the diode's side light extraction efficiency, can be obtained.
摘要:
There is provided a semiconductor light emitting diode (LED) chip including: a semiconductor light emitting diode unit including a light-transmissive substrate, and a first conductivity-type semiconductor layer, an active layer, and a second conductivity-type semiconductor layer sequentially formed on an upper surface of the light-transmissive substrate; a rear reflective laminate including an auxiliary optical layer formed on a lower surface of the light-transmissive substrate and made of a material having a predetermined refractive index and a metal reflective film formed on a lower surface of the auxiliary optical layer; and a bonding laminate provided on a lower surface of the rear reflective laminate and including a bonding metal layer made of a eutectic metal material and an anti-diffusion film formed to prevent diffusion of elements between the bonding metal layer and the metal reflective film.
摘要:
There is provided a semiconductor light emitting device including a conductive substrate, a first electrode layer, an insulating layer, a second electrode layer, a second semiconductor layer, an active layer, and a first semiconductor layer that are sequentially stacked. The contact area between the first electrode layer and the first semiconductor layer is 3% to 13% of the total area of the semiconductor light emitting device, and thus high luminous efficiency is achieved.
摘要:
The present invention provides a light emitting diode package including: a package mold having a first cavity and a second cavity with a smaller size than that of the first cavity; first and second electrode pads provided on the bottom surfaces of the first cavity and the second cavity, respectively; an LED chip mounted on the first electrode pad; a wire for providing electrical connection between the LED chip and the second electrode pad; and a molding material filled within the first cavity and the second cavity.