Patent ID: 9312441
Filing Date: 2016-04-12
CPC Classification: H01L

Claim Text:
1. A radiation-emitting semiconductor chip comprising: a semiconductor body comprising an active zone configured to emit unpolarized radiation having a first radiation component of a first polarization and a second radiation component of a second polarization; a grating structure configured to act as a waveplate or polarization filter and bring about an increase in one radiation component relative to the other radiation component in the radiation emitted by the semiconductor chip through a coupling-out side such that the semiconductor chip is configured to emit polarized radiation having the polarization of the amplified radiation component while the attenuated radiation component remains in the semiconductor chip; an optical structure configured to convert the polarization of at least a part of the attenuated radiation component remaining in the semiconductor chip into the polarization of the amplified radiation component; and a reflective rear side situated opposite the coupling-out side, wherein the optical structure comprises a first group of structured regions and at least a second group of structured regions, wherein each group of structured regions comprises at least one structured region having oblique side faces that run at an angle of greater than 0° and less than 90° obliquely with respect to a plane in which the grating structure extends, wherein each group of structured regions comprises at least two of the structured regions, wherein the structured regions of one group of structured regions directly adjoin each other, and wherein the first group of structured regions and the second group of structured regions are laterally spaced apart from each other.