Patent ID: 9166111
Filing Date: 2015-10-20
Classification: H01L

Abstract:
1. A light-emitting element comprising: a first conductivity type semiconductor layer having a stepped portion formed on an end portion of the first conductivity type semiconductor layer; a light-emitting layer stacked on the first conductivity type semiconductor layer excluding the stepped portion; a second conductivity type semiconductor layer stacked on the light-emitting layer; a transparent electrode layer, stacked on the second conductivity type semiconductor layer, transparent with respect to an emission wavelength of light emitted from the light-emitting layer; a reflecting electrode layer, stacked on the transparent electrode layer, reflecting light transmitted through the transparent electrode layer; an insulating layer stacked on the reflecting electrode layer and including an extensional portion, the extensional portion covering outer end surfaces of respective ones of the light-emitting layer, the second conductivity type semiconductor layer, the transparent electrode layer and the reflecting electrode layer in a plan view as viewed from a thickness direction of the first conductivity type semiconductor layer, and the stepped portion of the first conductivity type semiconductor layer; a first electrode layer stacked on the insulating layer; a second electrode layer stacked on the insulating layer in a state isolated from the first electrode layer; a plurality of insulating tube layers, discretely arranged in the plan view, passing through the reflecting electrode layer, the transparent electrode layer, the second conductivity type semiconductor layer and the light-emitting layer continuously from the insulating layer and reaching the first conductivity type semiconductor layer; first contacts, continuous from the first electrode layer, connected to the first conductivity type semiconductor layer through the insulating layer and the insulating tube layers; and second contacts, continuous from the second electrode layer, passing through the insulating layer to be connected to the reflecting electrode layer, the second contacts having a wider width than that of the first contacts.