Patent ID: 8643023

Claim:
A light-emitting diode comprising: a compound semiconductor layer having a pn-junction type light-emitting section which comprises Al in a composition formula and in which a luminescence wavelength is not less than 570 nm and not more than 700 nm; an ohmic electrode provided on the main light extraction surface of the compound semiconductor layer; and an electrode protection layer for protecting the ohmic electrode, wherein Al concentrations of the surfaces of the compound semiconductor layer which comprise the main light extraction surface are 25% or less, wherein the light-emitting section comprises a light-emitting layer having a composition formula, (Al X Ga 1-x ) Y In 1-Y P (0≦x≦1 and 0≦y≦1), the electrode protection layer has a two-layer structure composed of a first protective film provided so as to cover the ohmic electrode and a part of the adjacent main light extraction surface, and a second protective film provided so as to cover at least an end portion of the first protective film without covering the ohmic electrode, the ohmic electrode is covered with the first protective film without being exposed, most of the main light extraction surface that is not in contact with the ohmic electrode is not covered by the first protective film, and the surface of the first protective film is made to be a pad for wire bonding.