Patent ID: 11916167
Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. An optoelectronic semiconductor chip comprising
a semiconductor layer sequence with a radiation side, a first semiconductor layer of a first conductivity type, an active layer, a second semiconductor layer of a second conductivity type and a rear side, which are arranged one above the other in this order, wherein the active layer generates or absorbs electromagnetic primary radiation in the intended operation,
a first contact structure and a second contact structure for electrically contacting the semiconductor layer sequence,
a mirror on the rear side, wherein the mirror is specular for the primary radiation generated or absorbed in the active layer, wherein
the second contact structure is arranged on the rear side and is in electrical contact with the second semiconductor layer,
the first contact structure is in electrical contact with the first semiconductor layer,
the radiation side is configured for coupling in or coupling out the primary radiation into or out of the semiconductor layer sequence,
the rear side is structured and comprises scattering structures which are configured to scatter and deflect the primary radiation,
between the rear side and the mirror a planarization layer is arranged, which comprises a dielectric material and is smooth within the manufacturing tolerance on a side facing the mirror, and
the radiation side is smooth within the manufacturing tolerance.