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Light-emitting diode with current-spreading region

  • US 8,399,273 B2
  • Filed: 08/12/2009
  • Issued: 03/19/2013
  • Est. Priority Date: 08/18/2008
  • Status: Active Grant
First Claim
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1. A method of forming a light-emitting diode (LED), the method comprising:

  • providing a substrate;

    forming an LED structure on a first side of the substrate, the LED structure having a lower layer formed on the substrate, an active layer formed on the lower layer, and a first upper layer formed on the active layer;

    forming a current blocking layer in the first upper layer by implanting impurities into the first upper layer;

    forming a second upper layer over the first upper layer, wherein the forming the second upper layer is performed after the forming the current blocking layer;

    forming a first electrode over the second upper layer, the first electrode being electrically coupled to the second upper layer; and

    forming a second electrode over the lower layer, the second electrode being electrically coupled to the lower layer.

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