Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Substrate for mounting light-emitting element, and light-emitting element module
The invention provides a substrate for mounting light-emitting element, and a light-emitting element module. The substrate has a high reflectance, and a light-emitting element module which has high reliability and a high luminance. The substrate for mounting a light-emitting element thereon is constituted of an alumina-based sintered object which comprises alumina crystals, zirconia crystals, and a grain boundary phase, wherein in an examination with an X-ray diffractometer using a CuK[Alpha] line, the ratio of the intensity It at a peak (2[Theta]=30-30.5o) assigned to the tetragonal zirconia crystals to the intensity Im at a peak (2[Theta]=28-28.5o) assigned to the monoclinic zirconia crystals, It/Im, is 35 or less (excluding 0). The light-emitting element module comprises the substrate for mounting a light-emitting element thereon and a light-emitting element mounted thereon.
Substrate for mounting light-emitting element, and light-emitting element module
The invention provides a substrate for mounting light-emitting element, and a light-emitting element module. The substrate has a high reflectance, and a light-emitting element module which has high reliability and a high luminance. The substrate for mounting a light-emitting element thereon is constituted of an alumina-based sintered object which comprises alumina crystals, zirconia crystals, and a grain boundary phase, wherein in an examination with an X-ray diffractometer using a CuK[Alpha] line, the ratio of the intensity It at a peak (2[Theta]=30-30.5o) assigned to the tetragonal zirconia crystals to the intensity Im at a peak (2[Theta]=28-28.5o) assigned to the monoclinic zirconia crystals, It/Im, is 35 or less (excluding 0). The light-emitting element module comprises the substrate for mounting a light-emitting element thereon and a light-emitting element mounted thereon.
Substrate for mounting light-emitting element, and light-emitting element module
TOYODA SATOSHI (Autor:in) / TAKENOSHITA HIDEHIRO (Autor:in) / FURUTACHI KENICHI (Autor:in)
18.11.2015
Patent
Elektronische Ressource
Englisch
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