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Inverted LED structure with improved light extraction

  • US 7,741,134 B2
  • Filed: 09/15/2008
  • Issued: 06/22/2010
  • Est. Priority Date: 09/15/2008
  • Status: Expired due to Fees
First Claim
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1. A method of fabricating a light emitting device comprising:

  • providing a substrate having a first surface and a second surface that are substantially parallel to one another;

    fabricating a light emitting structure on said first surface, said light emitting structure comprising;

    a first layer of semiconductor material of a first conductivity type deposited on said substrate;

    an active layer overlying said first layer; and

    a second layer of semiconductor material of an opposite conductivity type from said first conductivity type overlying said active layer; and

    etching said second surface of said substrate to provide a curved, convex surface with respect to said first surface, wherein said substrate comprises sapphire or silicon carbide.

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