Light-emitting device, method of fabricating the same, and OHMIC electrode structure for semiconductor device

摘要

A light-emitting device which uses a reflective metal layer, and thereby has a large light extraction efficiency and a small wavelength dependence is disclosed. The device uses one main surface of a light-emitting layer portion as a light extraction surface, and has a device substrate bonded on other main surface of the light-emitting layer portion. The device also has an Ag-base metal layer disposed between the device substrate and the light-emitting layer portion, wherein the Ag-base reflective metal layer has Ag as a major component over the entire portion thereof, and is intended for reflecting the light from the light-emitting layer portion back towards the light extraction surface side.