| 摘要 |
A reflective layer 10 is formed on a back surface 11b of a sapphire substrate 11. The reflective layer 10 includes an extension portion 10a which extends so as to cover almost all the sidewalls 21a of a light-emitting device in the vicinity of the sapphire substrate. Thus, since adhesion between the reflective layer 10 and the substrate is greatly enhanced in the vicinity of the periphery of the surface on which the reflective layer is formed (the substrate back surface 11b) by virtue of formation of the aforementioned extension portion 10a, exfoliation of the reflective layer 10 from the substrate is prevented. Therefore, even when a process in which the reflective layer 10 is attached onto an adhesive sheet to thereby secure the light-emitting device 100 on the sheet is employed, generation of a defective product having an exfoliated reflective layer can be prevented. Thus, the quality and productivity of the semiconductor light-emitting device 100 including the reflective layer 10 provided for enhancing emission efficiency can be considerably improved. The sidewalls 21a may have a short-circuit-prevention groove-like portion for preventing excessive extension of the reflective layer 10. <IMAGE>
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