Patent ID: 7172956

Claim:
A semiconductor light-emitting element fabrication method comprises the steps of: forming a group III nitride underlayer on a set base material, said group III nitride underlayer contains at least Al, has a dislocation density of â‰¦1Ã—10 11 /cm 2 and a (002) plane X-ray rocking curve half-width value of â‰¦200 seconds; forming a p-type semiconductor layer group above said group III nitride underlayer, said p-type semiconductor layer group comprising a group III nitride having a Ga content relative to the total group III elements present in the p-type semiconductor layer group of â‰§50%; forming a light-emitting layer on said p-type semiconductor layer group, said light-emitting layer having the form of insular crystals comprising a group III nitride and produces quantum effects; and forming an n-type semiconductor layer group on said light-emitting layer, said n-type semiconductor layer group including a Ga content relative to the total group III elements present in the n-type semiconductor layer group of â‰§50%.