High-efficiency light-emitting device

This invention provides a high-efficiency light-emitting device, which comprises a substrate, and an epitaxial crystal formed on the substrate. The substrate has a base surface and a plurality of cavities sunk from the base surface of the substrate apart from each other. The epitaxial crystal has a...

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Bibliographic Details
Main Authors HORNG, RAY-HUA, WUU, DONG-SING, WANG, WOEI-KAI
Format Patent
LanguageEnglish
Published 21.07.2005
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:This invention provides a high-efficiency light-emitting device, which comprises a substrate, and an epitaxial crystal formed on the substrate. The substrate has a base surface and a plurality of cavities sunk from the base surface of the substrate apart from each other. The epitaxial crystal has a base surface and a plurality of posts projected form the base surface of the epitaxial crystal. The posts of the epitaxial crystal displaced in the cavities of the substrate respectively. Each of the cavities of the substrate and each of the posts of the epitaxial crystal cooperate to confine a plurality of closed pores.
Bibliography:Application Number: TW20040117957