Surface emitting visible light emiting diode having ring-shaped

Details Surface emitting visible light emiting diode having ring-shaped Surface emitting visible light emiting diode having ring-shaped

1996-04-11

1999-01-19

Tran, Minh Loan

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

Incoherent light emitter structure

Plural light emitting devices

257 95, 257 98, 257 99, 257100, H01L 3300

Patent

active

058616365

ABSTRACT:
Disclosed is a surface emitting visible light emitting diode, which has: a first conductivity-type substrate; and a first conductivity-type buffer layer, a first conductivity-type cladding layer, an active layer, a second conductivity-type cladding layer, a second conductivity-type current spreading layer and a second conductivity-type cap layer which are in turn grown on the substrate; wherein the second conductivity-type cap layer has a ring shaped electrode formed thereon.

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