Light emitting diode
First Claim
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1. A light emitting diode (LED), comprising:
- an n-type semiconductor layer, an active layer, a p-type semiconductor layer, and a transparent electrode layer arranged on a substrate;
a tunnel layer interposed between the p-type semiconductor layer and the transparent electrode layer;
an opening arranged in the transparent electrode layer so that the tunnel layer or the p-type semiconductor layer under the tunnel layer is exposed upward;
a distributed Bragg reflector (DBR) arranged in the opening; and
an electrode pad arranged on the transparent electrode layer to cover the DBR in the opening.
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Abstract
A light emitting diode (LED) has an n-type semiconductor layer, an active layer, a p-type semiconductor layer, and a transparent electrode layer. The LED includes a tunnel layer interposed between the p-type semiconductor layer and the transparent electrode layer, an opening arranged in the transparent electrode layer so that the tunnel layer is exposed, a distributed Bragg reflector (DBR) arranged in the opening, and an electrode pad arranged on the transparent electrode layer to cover the DBR in the opening.
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Citations
10 Claims
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1. A light emitting diode (LED), comprising:
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an n-type semiconductor layer, an active layer, a p-type semiconductor layer, and a transparent electrode layer arranged on a substrate; a tunnel layer interposed between the p-type semiconductor layer and the transparent electrode layer; an opening arranged in the transparent electrode layer so that the tunnel layer or the p-type semiconductor layer under the tunnel layer is exposed upward; a distributed Bragg reflector (DBR) arranged in the opening; and an electrode pad arranged on the transparent electrode layer to cover the DBR in the opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A light emitting diode (LED), comprising:
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an n-type semiconductor layer, an active layer, a p-type semiconductor layer, and a transparent electrode layer arranged on a substrate; an opening arranged in the transparent electrode layer; an electrode pad arranged to partially fill the opening; and an n++ or undoped layer arranged on the transparent electrode layer and contacting the electrode pad.
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Specification