Patent ID: 10147849

Abstract:
This disclosure refers to a manufacturing method of a flip-chip structure of III group semiconductor light emitting device. The manufacturing method includes steps of: growing a substrate, a buffer layer, an N type nitride semiconductor layer, an active layer and a P type nitride semiconductor layer sequentially from bottom to top to form an epitaxial structure, depositing a transparent conductive layer; defining an isolation groove with the yellow light etching process, depositing a first insulation layer structure, depositing a P type contact metal and N type contact metal, depositing a second insulation layer structure, depositing a flip-chip P type electrode and flip-chip N type electrode, then removing the photo resist by using of the stripping process to get a wafer; thinning, dicing, separating, measuring and sorting the wafer. In this disclosure, structure of the first insulation layer structure which is formed by the Prague reflective layer, the metal layer and the multilayer of oxide insulation, acts as a reflector structure and an insulation layer to replace the flip-chip reflector structure design and the first insulation layer, so that a metal protective layer can be omitted.