Semiconductor light emitting device

Details Semiconductor light emitting device Semiconductor light emitting device

2005-03-22

2005-03-22

Nelms, David (Department: 2818)

Active solid-state devices (e.g., transistors, solid-state diode

Incoherent light emitter structure

C257S013000, C257S014000, C257S113000, C257S678000

Reexamination Certificate

active

06870191

ABSTRACT:
A high external quantum efficiency is stably secured in a semiconductor light emitting device. At least one recess and/or protruding portion is created on the surface portion of a substrate for scattering or diffracting light generated in a light emitting region. The recess and/or protruding portion has a shape that prevents crystal defects from occurring in semiconductor layers.

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