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Gallium nitride compound semiconductor light-emitting device

  • US 5,905,275 A
  • Filed: 06/16/1997
  • Issued: 05/18/1999
  • Est. Priority Date: 06/17/1996
  • Status: Expired due to Term
First Claim
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1. A gallium nitride compound semiconductor light-emitting device comprising:

  • a sapphire substrate having a trench with two side wall surfaces which extend from a top surface to a bottom surface and incline so as to converge downward;

    a gallium nitride compound semiconductor multiple layer supported by said sapphire substrate and having an n-type layer and a p-type layer, said semiconductor multiple layer having two side portions arranged along said two side wall surfaces and a central portion positioned between said two side portions and formed integrally with said two side portions; and

    first and second electrodes connected to top and bottom surfaces, respectively, of said semiconductor multiple layer so that said first and second electrodes are positioned on top and bottom sides of said device.

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