摘要:
A light-emitting device includes an n-type semiconductor layer 13, a light-emitting layer 14, and a p-type semiconductor layer 15, which are sequentially stacked on a substrate 11; and a p-side electrode 16 formed on the p-type semiconductor layer 15. The p-side electrode 16 includes an adhesive layer 61 formed in contact with the p-type semiconductor layer 15, having a thickness ranging from 0.5 atomic layer to 1.5 atomic layer, and made of platinum; and a reflective layer 62 formed in contact with the adhesive layer 61, and made of a material containing silver.
摘要:
In a semiconductor light emitting device, in which a light emitting layer is formed on one surface of a conductive substrate, and an n-type electrode and a p-type electrode are formed on the same side as the light emitting layer, there has been the problem that, if larger electric power is applied, heat is generated near the n-side electrode to reduce luminous efficiency.The n-side electrode has a predetermined length at a corner portion or along an edge of the substrate to disperse a current flowing from the n-side electrode into the substrate, thereby avoiding heat generation near the n-side electrode. In this type of semiconductor light emitting element, the existence of the n-side electrode reduces a light emitting area. Therefore, the length of the n-side electrode preferably ranges from 20% to 50% of the entire peripheral length of the substrate.
摘要:
In a semiconductor light emitting device, in which a light emitting layer is formed on one surface of a conductive substrate, and an n-type electrode and a p-type electrode are formed on the same side as the light emitting layer, there has been the problem that, if larger electric power is applied, heat is generated near the n-side electrode to reduce luminous efficiency. The n-side electrode has a predetermined length at a corner portion or along an edge of the substrate to disperse a current flowing from the n-side electrode into the substrate, thereby avoiding heat generation near the n-side electrode. In this type of semiconductor light emitting element, the existence of the n-side electrode reduces a light emitting area. Therefore, the length of the n-side electrode preferably ranges from 20% to 50% of the entire peripheral length of the substrate.
摘要:
A method of manufacturing the semiconductor light emitting element comprises a semiconductor layer forming step of forming the multilayered nitride semiconductor layer on the first wafer having a transparent property; a bonding step of bonding the multilayered nitride semiconductor layer to the first wafer; a groove forming step of forming the groove extending from the lower surface of the first wafer to the multilayered nitride semiconductor layer; a light applying step of applying a first light to the lower surface of the multilayered nitride semiconductor layer through the first wafer to reduce a bonding force between the multilayered nitride semiconductor layer and the first wafer; a separating step of separating the first wafer from the multilayered nitride semiconductor layer; and a cutting step of cutting the second wafer along the groove to divide into a plurality of the semiconductor light emitting element.
摘要:
A method of manufacturing the semiconductor light emitting element comprises a semiconductor layer forming step of forming the multilayered nitride semiconductor layer on the first wafer having a transparent property; a bonding step of bonding the multilayered nitride semiconductor layer to the first wafer; a groove forming step of forming the groove extending from the lower surface of the first wafer to the multilayered nitride semiconductor layer; a light applying step of applying a first light to the lower surface of the multilayered nitride semiconductor layer through the first wafer to reduce a bonding force between the multilayered nitride semiconductor layer and the first wafer; a separating step of separating the first wafer from the multilayered nitride semiconductor layer; and a cutting step of cutting the second wafer along the groove to divide into a plurality of the semiconductor light emitting element.
摘要:
A method of manufacturing the semiconductor light emitting element comprises a semiconductor layer forming step of forming the multilayered nitride semiconductor layer on the first wafer having a transparent property; a bonding step of bonding the multilayered nitride semiconductor layer to the first wafer; a groove forming step of forming the groove extending from the lower surface of the first wafer to the multilayered nitride semiconductor layer; a light applying step of applying a first light to the lower surface of the multilayered nitride semiconductor layer through the first wafer to reduce a bonding force between the multilayered nitride semiconductor layer and the first wafer; a separating step of separating the first wafer from the multilayered nitride semiconductor layer; and a cutting step of cutting the second wafer along the groove to divide into a plurality of the semiconductor light emitting element.
摘要:
A light emitting element and a light emitting device for which light extraction efficiency is enhanced are provided.A light emitting element 10 includes a substrate 1 having light transmittance, a semiconductor layer 2 in which an n-type layer 2a, an active layer 2b, and a p-type layer 2c are stacked, a reflective electrode 3 stacked on the semiconductor layer 2 and configured to reflect light emitted from the active layer 2b, toward the substrate 1, a p-side pad electrode 4 stacked on the reflective electrode 3, an insulating film 6 covering a side surface of the semiconductor layer 2 and having light transmittance, a reflective film 7 stacked on the insulating film 6 and having light reflectivity, and an n-side electrode 5 provided on the substrate 1.
摘要:
A light emitting element and a light emitting device for which light extraction efficiency is enhanced are provided.A light emitting element 10 includes a substrate 1 having light transmittance, a semiconductor layer 2 in which an n-type layer 2a, an active layer 2b, and a p-type layer 2c are stacked, a reflective electrode 3 stacked on the semiconductor layer 2 and configured to reflect light emitted from the active layer 2b, toward the substrate 1, a p-side pad electrode 4 stacked on the reflective electrode 3, an insulating film 6 covering a side surface of the semiconductor layer 2 and having light transmittance, a reflective film 7 stacked on the insulating film 6 and having light reflectivity, and an n-side electrode 5 provided on the substrate 1.
摘要:
A plurality of semiconductor layers including a light-emitting layer (14) are formed on the main surface of a substrate (10) which is composed of a group III-V nitride semiconductor. A first n-type semiconductor layer (12) containing indium is formed between the light-emitting layer (14) and the substrate (10), thereby reducing the affect of damage in the substrate surface. By having such a structure, there is realized a semiconductor light-emitting device having uniform characteristics.
摘要:
A semiconductor light-emitting device includes: a substrate; a first conductivity type layer formed on the substrate and including a plurality of group III-V nitride semiconductor layers of a first conductivity type; an active layer formed on the first conductivity type layer; and a second conductivity type layer formed on the active layer and including a group III-V nitride semiconductor layer of a second conductivity type. The first conductivity type layer includes an intermediate layer made of AlxGa1−x−yInyN (wherein 0.001≦x
摘要翻译:一种半导体发光器件包括:衬底; 形成在所述基板上并且包括多个第一导电类型的III-V族氮化物半导体层的第一导电类型层; 形成在所述第一导电类型层上的有源层; 以及形成在所述有源层上并且包括第二导电类型的III-V族氮化物半导体层的第二导电类型层。 第一导电类型层包括由Al x Ga 1-xy N y N(其中0.001 <= x <0.1, 0