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Light-emitting diode with an electrically conductive window

DC CAFC
  • US 5,008,718 A
  • Filed: 12/18/1989
  • Issued: 04/16/1991
  • Est. Priority Date: 12/18/1989
  • Status: Expired due to Term
First Claim
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1. A light emitting diode comprising:

  • a semiconductor substrate;

    an electrical contact to the substrate;

    active p-n junction layers for AlGaInP over the substrate for emitting light;

    a transparent window layer of semiconductor different from AlGaInP over the active layers and having a bandgap greater than the bandgap of the active layers and a resistivity lower than the active layers; and

    a metal electrical contact over a portion of the transparent layer.

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