Patent ID: 11942756
Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. A method for producing a radiation-emitting semiconductor chip comprising:
providing a semiconductor layer sequence having an active zone configured to generate electromagnetic radiation,
generating an outer recess in the semiconductor layer sequence,
applying a reflective layer on at least one side surface of the outer recess,
generating an inner recess in the semiconductor layer sequence in a central region, and
applying an electrically insulating layer to a side surface of the inner recess, wherein
the at least one side surface of the outer recess includes an angle of at least 35° and at most 55° with a main extension plane of the semiconductor chip,
the side surface of the inner recess includes an angle of at least 35° and at most 55° with a main extension plane of the semiconductor chip and
a reflective coating is arranged on the semiconductor layer sequence in a region of the reflective outer surface and an anti-reflective coating is arranged on the semiconductor layer sequence in the electrically insulating region, or
an anti-reflective coating is arranged on the semiconductor layer sequence in the region of the reflective outer surface and a reflective coating is arranged on the semiconductor layer sequence in the electrically insulating region.