Patent ID: 9496456
Filing Date: 2016-11-15
CPC Classification: H01L

Claim Text:
1. A semiconductor light emitting element comprising: a first semiconductor layer of a first conductivity type; a pit formation layer formed on said first semiconductor layer and having a pyramidal pit caused by a threading dislocation generated in said first semiconductor layer; an active layer formed on said pit formation layer and having a flat portion and an embedded portion which is formed so as to be embedded in said pit; and a second semiconductor formed on said active layer and having a second conductivity type which is opposite to the first conductivity type, wherein: said active layer has a multi-quantum well structure having at least one well layer and at least one barrier layer laminated alternately in which each well layer and each barrier layer lie one upon another, said flat portion has at least one flat well portion corresponding to said at least one well layer, said embedded portion has at least one embedded well portion corresponding to said at least one well layer, each of said at least one embedded well portion has at least one ring portion which is formed in an interface with each of said at least one flat well portion so as to surround said threading dislocation, each of said at least one ring portion has a band gap smaller than that of each of said at least one flat well portion.