Light emitting diode and manufacturing method therefor

• Main Authors: XIA ZHANGGEN, XU CHENKE, HONG LINGYUAN, LIN SUHUI, HUANG YUJIE, PENG KANGWEI
• Format: Patent
• Language: Chinese; English
• Published: 29.06.2016
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

The invention discloses a light emitting diode with three-dimensional type expansion electrodes and a manufacturing method for the light emitting diode. The light emitting diode comprises a first connecting layer, a light emitting layer, a second connecting layer, and a first metal electrode and a second metal electrode formed on the first connecting layer and the second connecting layer respectively; the first metal electrode comprises an electrode main body and at least an outwardly-extended metal expansion part; and the metal expansion part and the surface of the first connecting layer are in incomplete contact. The distance between the first metal expansion part and the light emitting layer is increased, so that the light absorption of the metal electrodes can be lowered and the efficiency of the light emitting diode element is improved; and meanwhile, due to the three-dimensional structured expansion electrodes, the surface area of the surface metal can be enlarged and the radiating area of the element c