LIGHT EMITTING DIODE AND METHOD OF FABRICATING THEREOF
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United States of America Patent
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Issued Date -
Dec 7, 2006
app pub date -
Aug 18, 2005
filing date -
Jun 3, 2005
priority date (Note) -
Abandoned
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Abstract
A light emitting diode (LED) is made of a substrate and an epitaxial structure. A surface of the epitaxial structure has many mass transferred patterns. The mass transferred patterns are formed by a mass transfer method to deform an original rough surface of the epitaxial structure. The surface topography of the mass transferred patterns is smoother and more gradual than that of the original rough surface of the epitaxial structure, and thus the light extraction efficiency of the LED is improved. In addition, the issue of instrument detection errors related to device positioning due to the roughness or the patterns of the LED surface can be reduced.
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