Light-emitting device
First Claim
Patent Images
1. A light-emitting device for emitting a radiation in a spectral range, successively including:
- a substrate including a metal layer capable of reflecting the radiation;
a first layer of a III/N type alloy, p-type doped, and comprising a first surface, opposite the metal layer, the first surface being provided with cavities;
a light-emitting layer of a III/N-type alloy, capable of generating the radiation;
a second layer of a III/N-type alloy, n-type doped, having the radiation coming out therethrough;
wherein a filling material, which is not a pure metal or a metal alloy and is transparent in the spectral range, is arranged within the cavities, and wherein the filling material alone or together with the first layer forms a planar surface and interface with the substrate or with the metal layer, the planar surface being continuous.
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Accused Products
Abstract
Device successively including a substrate including a metal layer capable of reflecting a radiation; a first layer of a III/N type alloy, p-type doped, and including a first surface, opposite the metal layer, the first surface being provided with cavities; a light-emitting layer made of a III/N-type alloy, capable of generating the radiation; a second layer of a III/N-type alloy, n-type doped, having the radiation coming out therethrough; wherein a non-metallic filling material transparent in the spectral range is arranged within the cavities.
5 Citations
16 Claims
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1. A light-emitting device for emitting a radiation in a spectral range, successively including:
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a substrate including a metal layer capable of reflecting the radiation; a first layer of a III/N type alloy, p-type doped, and comprising a first surface, opposite the metal layer, the first surface being provided with cavities; a light-emitting layer of a III/N-type alloy, capable of generating the radiation; a second layer of a III/N-type alloy, n-type doped, having the radiation coming out therethrough; wherein a filling material, which is not a pure metal or a metal alloy and is transparent in the spectral range, is arranged within the cavities, and wherein the filling material alone or together with the first layer forms a planar surface and interface with the substrate or with the metal layer, the planar surface being continuous. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A light-emitting device for emitting a radiation in a spectral range, successively including:
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a substrate including a metal layer; a first layer of a III/N type alloy, p-type doped, and comprising a first surface, opposite the metal layer, the first surface being provided with cavities; a light-emitting layer of a III/N-type alloy, capable of generating the radiation; a second layer of a III/N-type alloy, n-type doped, having the radiation coming out therethrough; wherein a filling material, which is not a pure metal or a metal alloy and is transparent in the spectral range, is arranged within the cavities, and wherein the cavities are fully filled by the filling material, the filling material forms a planar surface either alone or together with a surface of the first layer, the planar surface being continuous.
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14. A light-emitting device for emitting a radiation in a spectral range, successively including:
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a substrate including a metal layer; a first layer of a III/N type alloy, p-type doped, and comprising a first surface, opposite the metal layer, the first surface being provided with cavities, the first surface of the first layer being in contact with the metal layer and defining a first plane; a light-emitting layer of a III/N-type alloy, capable of generating the radiation; a second layer of a III/N-type alloy, n-type doped, having the radiation coming out therethrough; wherein a filling material, which is not a pure metal or a metal alloy and is transparent in the spectral range, is arranged within the cavities, the filling material forming dielectric balls and the dielectric balls protrudes from the first plane. - View Dependent Claims (15, 16)
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Specification