Patent ID: 8071992

Claim:
A semiconductor light-emitting device, comprising: a support structure; and a light-emitting structure, wherein the support structure comprises: a support substrate; and a support substrate side bonding layer disposed on one surface of the support substrate, wherein the light-emitting structure comprises: a light-emitting structure side bonding layer bonded to the support substrate side bonding layer; a reflection region is disposed on the light-emitting structure side bonding layer opposite the support substrate; and a semiconductor multilayer structure including a light-emitting layer disposed on the reflection region opposite the light-emitting structure side bonding layer for emitting a light with a predetermined wavelength, and a light-extraction surface roughened and disposed on the light-emitting layer opposite the reflection region for reflecting diffusely the light, wherein the reflection region includes a transparent layer comprising a material having electrical insulation with a lower refractive index than that of the semiconductor multilayer structure, and a reflection layer comprising a metallic material, wherein the transparent layer has such a thickness that an interference caused by multiple reflection of light inputted to the transparent layer is suppressed, and has a thickness of at least about half of a value obtained by dividing a central wavelength of light emitted from the light-emitting layer by a refractive index of the transparent layer, and wherein the transparent layer has a refractive index of about 1.3 to about 3.0, and a thickness of not less than about Â¾ of the value obtained by said dividing the central wavelength by the refractive index.