| 摘要 |
PROBLEM TO BE SOLVED: To provide a light-emitting element where a light-emission efficiency is improved while the amount of generated light is increased. SOLUTION: A semiconductor substrate 1 is provided with a protruding surface 1A which protrudes toward a light-emitting surface 11. On the surface 1A, an N-type semiconductor layer 2 and P-type semiconductor layer 3 are sequentially epitaxial-grown, with a PN junction surface 5 which contributes light emission formed at the interface. The PN junction surface 5 protrudes toward the light-emission surface 11. Thus, an exposed part 5A of the PN junction surface 5 is away from an anode electrode 8 while the PN junction surface 5 has a wide area. |
