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Semiconductor chip for optoelectronics

  • US 7,145,181 B2
  • Filed: 04/26/2002
  • Issued: 12/05/2006
  • Est. Priority Date: 04/27/2001
  • Status: Expired due to Term
First Claim
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1. A semiconductor chip for optoelectronics comprising:

  • a substrate (2);

    a sequence of semiconductor layers (3) arranged on and above said substrate and including a photon-emitting active zone (5);

    a window layer (6) directly applied to and above said sequence of semiconductor layers;

    wherein a region of said window layer (6) has a Fresnel lens type of stepped structure arranged so that in said region of the window layer radiation emitted from the active zone (5) impinges on said stepped structure; and

    wherein the semiconductor chip has a central contact point arranged above the active zone (5) on a surface of said window layer not in contact with the sequence of semiconductor layers.

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