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DUAL SURFACE-ROUGHENED N-FACE HIGH-BRIGHTNESS LED
DUAL SURFACE-ROUGHENED N-FACE HIGH-BRIGHTNESS LED
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机译:双表面加固型N面高亮度LED
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摘要
A light emitting diode, comprising a substrate, a buffer layer on the substrate, an active layer on the buffer layer and between an n-type layer and a p-type layer, a tunnel junction adjacent the p-type layer, and n-type contacts to the tunnel junction and the n-type layer, wherein the buffer layer, n-type layer, p-type layer, active region and tunnel junction comprise III-nitride material grown in a nitrogen-face (N-face) orientation. The substrate surface upon which the III-nitride material is deposited is patterned to provide embedded backside roughening. A top surface of the tunnel junction, which also the top surface of the III-nitride material, is roughened.
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