Patent ID: 7495261

Claim:
A Group III nitride semiconductor light-emitting device comprising: a stacked structure formed on a crystal substrate, removable from the stacked structure, and including two Group III nitride semiconductor layers having different electric conductive types and a light-emitting layer which is stacked between the two Group III nitride semiconductor layers and which comprises a Group III nitride semiconductor; and a plate body made of material different from that of the crystal substrate and formed on a surface of an uppermost layer which is opposite from the crystal substrate that is removable from the stacked structure, wherein the crystal substrate is a sapphire substrate having a (0001) face on which the stacked structure is formed, the plate body is a conductive (001)-Si monocrystal, and wherein the plate body has a <110> crystal orientation that is in parallel to a [1.1.-2.0] crystal orientation of the (0001)-sapphire substrate.