Patent ID: 8878218
Filing Date: 2014-11-04
Classification: H01L

Abstract:
1. A semiconductor light-emitting device comprising: a translucent substrate having a first principal surface, a second principal surface and a side surface, wherein the side surface is in contact with the first principal surface and the second principal surface, a semiconductor layer disposed on the first principal surface of the translucent substrate, a first metal layer disposed in contact with the second principal surface of the translucent substrate, a second metal layer disposed in contact with at least the second principal surface or the side surface of the translucent substrate around the first metal layer, and a third metal layer disposed on the second metal layer, wherein the first metal layer has a reflectance with respect to a peak wavelength of light emitted from an emitting layer higher than the reflectance of the second metal layer, and the second metal layer has an adhesion with respect to the translucent substrate higher than the adhesion between the first metal layer and the translucent substrate.