Semiconductor light-emitting device

Active solid-state devices (e.g. – transistors – solid-state diode – Specified wide band gap semiconductor material other than...

Reexamination Certificate

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C257S079000, C257S094000, C257S096000, C257S097000, C257S190000, C257S196000, C257SE31019, C257SE31022, C257SE27120, C257SE33023, C257SE33024, C257SE33025, C257SE33026, C257SE33027, C257SE33028, C257SE33029, C257SE33030, C257SE33032, C257SE33033, C257SE33034, C257SE33044, C257SE33048, C257SE33049, C257S101000, C257S183000, C257SE33031, C438S046000, C438S047000, C372S043010, C372S045011, C372S050100

Reexamination Certificate

active

07601985

ABSTRACT:
A semiconductor light-emitting device includes: a substrate; a first conductivity type layer formed on the substrate and including a plurality of group III-V nitride semiconductor layers of a first conductivity type; an active layer formed on the first conductivity type layer; and a second conductivity type layer formed on the active layer and including a group III-V nitride semiconductor layer of a second conductivity type. The first conductivity type layer includes an intermediate layer made of AlxGa1−x−yInyN (wherein 0.001≦x<0.1, 0<y<1 and x+y<1).

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