Patent ID: 8299451
Filing Date: 2012-10-30
Classification: B82Y,H01L

Abstract:
1. A semiconductor light-emitting diode comprising: a silicon single crystal substrate, an intervening layer formed of an aluminum-containing Group III nitride semiconductor and stacked on the silicon single crystal substrate, a light-emitting part formed with a p-n junction hetero junction structure and stacked on the intervening layer, a superlattice structure interposed between the intervening layer and the light-emitting part and formed of a plurality of Group III nitride semiconductor layers that contain aluminum and have mutually different composition ratios of aluminum, and an intermediate layer formed of an aluminum-containing Group III nitride semiconductor and interposed between the intervening layer and the superlattice structure, wherein the intervening layer possesses an aluminum composition ratio of X the plurality of Group III nitride semiconductor layers of the superlattice structure possess aluminum composition ratios of X the intermediate layer possesses an aluminum composition ratio of X