Patent ID: 7915625

Claim:
A semiconductor light emitting device comprising: (A) a light emitting part configured to be formed of a multilayer structure arising from sequential stacking of a first compound semiconductor layer of a first conductivity type, an active layer, and a second compound semiconductor layer of a second conductivity type; (B) a current block layer configured to be provided in contact with a side surface of the light emitting part; and (C) a burying layer configured to be formed over the current block layer and the light emitting part, wherein a planar shape of the active layer is a strip shape in which a width of a center part is smaller than a width of both end parts, the current block layer is composed of a third compound semiconductor layer of the first conductivity type and a fourth compound semiconductor layer of the second conductivity type in contact with the third compound semiconductor layer, the burying layer has the second conductivity type and is formed of a multilayer structure arising from sequential stacking of a first burying layer and a second burying layer, and in the burying layer located above the current block layer, an impurity for causing the second burying layer to have the second conductivity type is such that a substitution site of the impurity in the second burying layer does not compete with a substitution site of an impurity in the third compound semiconductor layer for causing the third compound semiconductor layer to have the first conductivity type.