Light emitting diodes including barrier layers/sublayers and manufacturing methods therefor
First Claim
1. A semiconductor light emitting device comprising:
- a semiconductor region that includes therein a light-emitting region;
a reflector layer including a reflector layer sidewall on the semiconductor region; and
a conductive barrier layer directly on the reflector layer and extending directly on the reflector layer sidewall,wherein the conductive barrier layer comprises a plurality of first and second alternating sublayers.
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Accused Products
Abstract
Semiconductor light emitting devices, such as light emitting diodes, include a substrate, an epitaxial region on the substrate that includes a light emitting region such as a light emitting diode region, and a multilayer conductive stack including a reflector layer, on the epitaxial region. A barrier layer is provided on the reflector layer and extending on a sidewall of the reflector layer. The multilayer conductive stack can also include an ohmic layer between the reflector and the epitaxial region. The barrier layer further extends on a sidewall of the ohmic layer. The barrier layer can also extend onto the epitaxial region outside the multilayer conductive stack. The barrier layer can be fabricated as a series of alternating first and second sublayers.
95 Citations
39 Claims
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1. A semiconductor light emitting device comprising:
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a semiconductor region that includes therein a light-emitting region; a reflector layer including a reflector layer sidewall on the semiconductor region; and a conductive barrier layer directly on the reflector layer and extending directly on the reflector layer sidewall, wherein the conductive barrier layer comprises a plurality of first and second alternating sublayers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A semiconductor light emitting device comprising:
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a semiconductor region that includes therein a light-emitting region; a reflector layer including a reflector layer sidewall on the semiconductor region; a conductive barrier layer directly on the reflector layer and extending directly on the reflector layer sidewall; and a transparent ohmic contact between the semiconductor region and the reflector layer. - View Dependent Claims (22, 23, 24, 25)
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26. A semiconductor light emitting device comprising:
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a semiconductor region that comprises a light-emitting region; a reflector layer on the semiconductor region; and a conductive barrier layer on the reflector layer opposite the semiconductor region and further extending onto the semiconductor region outside the reflector layer, wherein the conductive barrier layer comprises a plurality of first spaced-apart sublayers. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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35. A semiconductor light emitting device comprising:
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a semiconductor region that comprises a light-emitting region; a reflector layer on the semiconductor region; and a conductive barrier layer on the reflector layer opposite the semiconductor region and further extending onto the semiconductor region outside the reflector layer, wherein the semiconductor region comprises a transparent ohmic contact adjacent the reflector layer. - View Dependent Claims (36, 37, 38)
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39. A semiconductor light emitting device comprising:
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a semiconductor region that comprises a light-emitting region; a reflector layer on the semiconductor region; a conductive barrier layer on the reflector layer opposite the semiconductor region and further extending onto the semiconductor region outside the reflector layer, and a first ohmic contact on the conductive barrier layer and a second ohmic contact on the semiconductor region opposite the reflective layer, to provide a vertical semiconductor light emitting device.
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Specification