Radiation-Emitting Optical Component
First Claim
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1. A radiation-emitting semiconductor component, comprising:
- a layer structure which includes an active layer which, in operation, emits radiation with a spectral distribution;
electrical contacts for applying a current to the layer structure; and
a coating layer which at least partially surrounds the active layer and holds back a short-wave component of the emitted radiation,wherein the layer structure has a top face and side faces, and the coating layer substantially completely covers the top face and at least one side face of the layer structure, andwherein the coating layer is conductive and is surrounded by a first one of the electrical contacts for the application of current.
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Abstract
A radiation-emitting semiconductor component, having a layer structure which includes an active layer which, in operation, emits radiation with a spectral distribution, and electrical contacts for applying a current to the layer structure, includes a coating layer which at least partially surrounds the active layer and holds back a short-wave component of the emitted radiation.
6 Citations
20 Claims
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1. A radiation-emitting semiconductor component, comprising:
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a layer structure which includes an active layer which, in operation, emits radiation with a spectral distribution; electrical contacts for applying a current to the layer structure; and a coating layer which at least partially surrounds the active layer and holds back a short-wave component of the emitted radiation, wherein the layer structure has a top face and side faces, and the coating layer substantially completely covers the top face and at least one side face of the layer structure, and wherein the coating layer is conductive and is surrounded by a first one of the electrical contacts for the application of current. - View Dependent Claims (2, 7, 9, 11)
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3. A radiation-emitting semiconductor component, comprising:
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a layer structure which includes an active layer which, in operation, emits radiation with a spectral distribution; electrical contacts for applying a current to the layer structure; and a coating layer which at least partially surrounds the active layer and holds back a short-wave component of the emitted radiation, wherein the layer structure has a top face and side faces, and the coating layer substantially completely covers the top face and at lest one side face of the layer structure, and wherein the coating layer is formed by an ITO layer with a thickness in the range from 100 to 1500 nm. - View Dependent Claims (4, 5, 6, 8, 10)
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12. A radiation-emitting semiconductor component, comprising:
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a substrate; a semiconductor layer structure which includes an active semiconductor layer which, in operation, emits radiation with a spectral distribution; electrical contacts for applying a current to the layer structure and to a connection pad; and a coating layer which at least partially surrounds the active semiconductor layer and comprises a stack of electrically insulating layers to form an interference edge cut-off filter, the coating layer being operable to substantially hold back a short-wave component and to virtually unimpairedly transmit a longer-wave component of the radiation emitted by the active semiconductor layer, wherein a majority of the emitted radiation is emitted through a top face of the semiconductor layer structure remote from the substrate, wherein the longer-wave component transmitted by the coating layer comprises a dominant wavelength of the radiation emitted by the active semiconductor layer, and wherein the coating layer is in direct contact with the top face of the semiconductor layer structure, and wherein the coating layer completely covers the top face of the semiconductor layer structure and side faces of the semiconductor layer structure apart from a region of the top face that is provided with the connection pad. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification