Surface-emitting semiconductor laser chip

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11979000
APP PUB NO 20210050710A1
SERIAL NO

16964072

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Abstract

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Surface-emitting semiconductor laser chip (1) comprising a carrier (20), a layer stack (10) arranged on the carrier (20) and having a layer plane (L) extending perpendicularly to the stacking direction (R), a front side contact (310) and a rear side contact (320), in which in operation a predetermined distribution of a current density (I) is achieved by means of current constriction in the layer stack (10), wherein in the carrier (20) an electrical through-connection (200) is provided, which extends from a bottom surface (20a) of the carrier (20) facing away from the layer stack (10) to a surface of the carrier (20) facing the layer stack (10), and the distribution of the current density (I) is significantly influenced by the shape and size of the cross-section of the through-connection (200) parallel to the layer plane (L) on the surface facing the layer stack.

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Patent Owner(s)

  • OSRAM OLED GMBH

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Halbritter, Hubert Dietfurt, DE 150 196
Rügheimer, Tilman Regensburg, DE 6 3

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