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US 2011/0297982 A1Published application
Optoelectronic Semiconductor Chip
OwnerNorbert Linder, Ralph Wirth +3inventors
InventorsNorbert Linder, Ralph Wirth, Christopher Wiesmann, Ross Stanley, Romuald Houdre
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Abstract
A semiconductor chip is specified, comprising an active layer provided for emitting an electromagnetic radiation, and a two-dimensional arrangement of structural units, which is disposed downstream of the active layer in a main emission direction of the semiconductor chip. The structural units are arranged in an arbitrary statistical distribution. Such an arrangement of structural units makes it possible to realize a semiconductor chip having a directional emission characteristic.
Claims14
An optoelectronic semiconductor chip comprising:
- an active layer provided for emitting an electromagnetic radiation;
- and
- a two-dimensional arrangement of structural units, which is disposed downstream of the active layer in a main emission direction of the semiconductor chip,
- wherein the structural units each have a first lateral extent, a second lateral extent measured perpendicularly to the first lateral extent, and/or a vertical extent, which is greater than or equal to 0.2 times a wavelength of the emission maximum of the electromagnetic radiation and less than or equal to 5 times a wavelength of the emission maximum of the electromagnetic radiation, and
- wherein the structural units are arranged in an arbitrary statistical distribution, with the boundary condition that the distribution of the distances of the nearest neighbors has a standard deviation of at least +/−10% and at most +/−25% from an average value.
2 more elements
Dependencies are inferred from the claim text.