Patent ID: 8847271

Claim:
A semiconductor light emitting device comprising: a first semiconductor layer of a first conductivity type having a first surface and a second surface on an opposite side to the first surface; a second semiconductor layer of a second conductivity type provided on a side of the second surface of the first semiconductor layer; a light emitting layer provided between the first semiconductor layer and the second semiconductor layer; a dielectric layer in contact with the second surface, the dielectric layer having a refractive index lower than a refractive index of the first semiconductor layer; a first electrode including a first portion and a second portion, the first portion in contact with the second surface, the first portion provided adjacent to the dielectric layer, the first portion having a first length in a first direction along the second surface, the first portion having a second length in a second direction perpendicular to the first direction, the second portion in contact with an opposite side of the dielectric layer from the first semiconductor layer; a second electrode having a portion, the portion in contact with an opposite side of the second semiconductor layer from the light emitting layer, the portion having a third length in the second direction; and a support substrate provided on an opposite side of the second electrode from the second semiconductor layer and electrically connected to the second electrode.