SUBSTRATE, METHOD OF PREPARING THE SAME, AND LIGHT-EMITTING DIODE USING THE SUBSTRATE
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United States of America Patent
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Dec 29, 2016
app pub date -
Jun 24, 2016
filing date -
Jun 25, 2015
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Abstract
The present invention relates to a gallium nitride substrate, a method of preparing the gallium nitride substrate, and a double-sided light-emitting diode using the gallium nitride substrate. The gallium nitride substrate has a first face having a Ga-polar face and a second face having an N-polar face. Protrusions with semi-polar surfaces are formed on the second face. A light-emitting body may be formed on the first face, and a separate light-emitting body may be formed through the surfaces of the protrusions.
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