Optoelectronic semiconductor chip and method for producing an optoelectronic semiconductor chip

Abstract

An optoelectronic semiconductor chip (1) is proposed having a carrier (5) and a semiconductor body (2) arranged on the carrier (5) with a semiconductor layer sequence, wherein the semiconductor An emission area (23) and a detection area (24) are formed in the body (2). The semiconductor layer sequence comprises an active region ( 20 ) which is arranged between a first semiconductor layer ( 21 ) and a second semiconductor layer ( 22 ) and in an emission region ( 23 ) for generating radiation. The first semiconductor layer ( 21 ) is arranged on the side of the active region ( 20 ) facing away from the carrier ( 5 ). The emission region (23) has a recess (25), which extends through the active region (20); the first semiconductor layer (21) is in the emission region (23) via a first connection layer (31) to a first contact Part (41) is electrically conductively connected, wherein the first connection layer (31) extends from the first semiconductor layer (21) in the direction of the carrier (5) in the recess (25); the second semiconductor layer (22) via the second connection layer ( 32 ) is electrically conductively connected to the second contact ( 42 ). The detection region ( 24 ) is electrically conductively connected to the additional contact ( 43 ). Furthermore, a method for producing an optoelectronic semiconductor chip is proposed.

Description

technical field [0001] The present application relates to an optoelectronic semiconductor chip and a method for producing an optoelectronic semiconductor chip. [0002] This application claims priority from German patent application 10 2010 034 665.9, the disclosure of which is hereby incorporated by reference. Background technique [0003] In optoelectronic components such as light-emitting diodes, aging phenomena such as aging of the semiconductor chip or of the luminescence conversion material can lead to changes in the emission properties, for example to a reduction in the radiation power and / or to a change in the color coordinates. In order to compensate for this effect, photodiodes, the signals of which are supplied to the control device for the operating parameters of the light-emitting diodes, can additionally be incorporated in the arrangement of the light-emitting diodes. However, just in the case of devices with a plurality of light-emitting diodes, the photodiod...

AI Technical Summary

Problems solved by technology

However, just in the case of devices with a plurality of light-emitting diodes, the photodiode cannot or can only monitor the output signal of each individual light-emitting diode with great effort.

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