Ordered interface texturing for a light emitting device

  • US 5,779,924 A
  • Filed: 03/22/1996
  • Issued: 07/14/1998
  • Est. Priority Date: 03/22/1996
  • Status: Expired due to Term
First Claim
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1. A light emitting device comprising:

  • a device that includes,a substrate,a p-n junction region having multiple layers, wherein subsets of the multiple layers have opposing polarity such that a p-n junction is formed, one of the layers being adjacent the substrate,a transparent window layer, positioned adjacent the p-n junction region, andelectrical contacts, connecting to the p-n junction region, being operative to forward bias the p-n junction; and

    a primary interface, positioned in the device, that is textured with repeated features in at least one selected direction, having an associated periodicity in each of the selected directions to increase light extraction and, within a period, having a cross-sectional profile having at least one peak and at least one valley.

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