Patent ID: 9312429
Filing Date: 2016-04-12
CPC Classification: H01L,H01S

Claim Text:
1. A semiconductor light emitting device, comprising: a light emitting layer; a first semiconductor layer arranged with the light emitting layer in a first direction, the first semiconductor layer including a first portion and a second portion, the first portion and the second portion including a nitride semiconductor, the first portion having a first lattice polarity, and the second portion having a second lattice polarity different from the first lattice polarity; a second semiconductor layer provided between the first semiconductor layer and the light emitting layer, the second semiconductor layer being of a first conductivity type; a third semiconductor layer of the second conductivity type, the light emitting layer being provided between the second semiconductor layer and the third semiconductor layer; and an In-containing layer provided between the second semiconductor layer and the light emitting layer, the In-containing layer including a nitride semiconductor including In, the light emitting layer including a nitride semiconductor including In, a composition ratio of In in the In-containing layer being different from a composition ratio of In in the light emitting layer, a lattice length of the In-containing layer in an a-axis direction being not less than 0.1% greater than a lattice length of the second semiconductor layer in the a-axis direction, and a difference of the lattice length of the In-containing layer in the a-axis direction and the lattice length of the light emitting layer in the a-axis direction is not more than 0.1%.