Method of fabricating AC light emitting device having...

Details Method of fabricating AC light emitting device having... Method of fabricating AC light emitting device having...

2011-03-08

2011-03-08

Smoot, Stephen W (Department: 2813)

Semiconductor device manufacturing: process

Making device or circuit emissive of nonelectrical signal

Including integrally formed optical element

C438S034000, C257SE33067

Reexamination Certificate

active

07901964

ABSTRACT:
Disclosed is an AC light emitting device having photonic crystal structures and a method of fabricating the same. The light emitting device includes a plurality of light emitting cells and metallic wirings electrically connecting the light emitting cells with one another. Further, each of the light emitting cells includes a first conductive type semiconductor layer, a second conductive type semiconductor layer disposed on one region of the first conductive type semiconductor layer, and an active layer interposed between the first and second conductive type semiconductor layers. In addition, a photonic crystal structure is formed in the second conductive type semiconductor layer. The photonic crystal structure prevents light emitted from the active layer from laterally propagating by means of a periodic array, such that light extraction efficiency of the light emitting device can be improved. Furthermore, the metallic wirings electrically connect a plurality of light emitting cells with one another such that an AC light emitting device can be provided.

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Final Office Action issued May 26, 2010 in U.S. Appl. No. 12/065,063.
Chinese Preliminary Notice of the First Office Action dated Sep. 8, 2009.

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