Compound semiconductor light-emitting device including...

Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – With particular semiconductor material

Reexamination Certificate

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C257S094000, C257S098000, C257S099000, C257SE33025, C257SE33034, C257SE33045

Reexamination Certificate

active

07732832

ABSTRACT:
This pn-junction compound semiconductor light-emitting device includes a crystal substrate; an n-type light-emitting layer formed of a hexagonal n-type Group III nitride semiconductor and provided on the crystal substrate; a p-type Group III nitride semiconductor layer formed of a hexagonal p-type Group III nitride semiconductor and provided on the n-type light-emitting layer; a p-type boron-phosphide-based semiconductor layer having a sphalerite crystal type and provided on the p-type Group III nitride semiconductor layer; and a thin-film layer composed of an undoped hexagonal Group III nitride semiconductor formed on the p-type Group III nitride semiconductor layer, wherein the p-type boron-phosphide-based semiconductor layer is joined to the thin-film layer composed of an undoped hexagonal Group III nitride semiconductor.

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Machine Translation of JP 09-232685, Oba Yasuo, Sep. 5, 1997, “Semiconductor Light Emitting Device”.
Odawara et al., “Suppression of indium vaporization from GaN/GaInN superlattice by BP capping layer”, Journal of Crystal Growth 263 (2004) pp. 645-647.
Isamu Akasaki, “Group III-V Compound Semiconductors,” 1994, 329-350, Chapter 13, Baifukan Co., Ltd., 1stedition.
Y. Kumasiro et al., “Preparation and Electrical Properties of Boron and Boron Phosphide Films obtained by Gas Source Molecular Beam Deposition”, Journal of Solid State Chem., vol. 133, pp. 269-272 (1997) SC977454.

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