Patent ID: 7514720
Filing Date: 2009-04-07
Classification: H01L

Abstract:
1. A white light emitting device comprising: a conductive submount substrate; a first light emitter bonded onto the conductive submount substrate by a metal layer, the first light emitter including a p-type nitride semiconductor layer, a first active layer, an n-type nitride semiconductor layer and a conductive substrate stacked sequentially from bottom to top; a second light emitter formed on only a partial area of a top surface of the conductive substrate, the second light emitter including a p-type AlGaInP-based semiconductor layer, a second active layer and an n-type AIGaInP-based semiconductor layer stacked sequentially from bottom to top; a p-electrode formed on an underside of the conductive submount substrate; and an n-electrode formed on a top surface of the n-type AlGaInP-based semiconductor layer, wherein the partial area of the top surface of the conductive substrate is smaller than the remaining area of the top surface of the conductive substrate.