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Semiconductor light emitting device and method for manufacturing the same

  • US 7,791,094 B2
  • Filed: 04/15/2008
  • Issued: 09/07/2010
  • Est. Priority Date: 04/16/2007
  • Status: Active Grant
First Claim
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1. A semiconductor light emitting device, comprising:

  • a substrate, in which concave-convex patterns are in at least a portion of a backside of the substrate; and

    a light emitting structure on the substrate and comprising a first conductive semiconductor layer, an active layer and a second conductive semiconductor layer,wherein at least one of the concave patterns comprises a width larger of a center position than a width of a concave pattern aligned at outer side position in the center area of substrate,wherein the center position comprises an area that is equal to or less than a ⅓

    radius of the substrate.

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