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Three dimensional features on light emitting diodes for improved light extraction

  • US 7,829,906 B2
  • Filed: 02/13/2008
  • Issued: 11/09/2010
  • Est. Priority Date: 04/01/2004
  • Status: Active Grant
First Claim
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1. An LED precursor structure comprising a substrate or submount:

  • at least one Group III nitride active layer on said substrate or said submount;

    a photoresist layer on said Group III nitride-layer; and

    an embossing stamp pressed into said photoresist layer.

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