Patent ID: 8487334

Claim:
A semiconductor light emitting diode (LED) chip comprising: a light emitting diode unit including a light-transmissive substrate having a face sloped upwardly at a lower edge thereof, and a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer sequentially formed on the upper face of the light-transmissive substrate; a rear reflective lamination body formed on the lower face and the surrounding sloped face of the light-transmissive substrate and including an optical auxiliary layer made of a material having a certain refractive index and a metal reflective film formed on a lower face of the optical auxiliary layer; and a junction lamination body provided to a lower face of the rear reflective lamination body and including a junction metal layer made of a eutectic metal material and a diffusion barrier film formed to prevent an element from being diffused between the junction metal layer and the metal reflective film.