Patent ID: 6929966

Claim:
Method for producing a light-emitting semiconductor component having a thin-film layer sequence ( 14 ), in which a photon-emitting active zone ( 17 ) is formed, comprising: forming the thin-film layer sequence ( 14 ) on a growth substrate; forming a reflection contact layer ( 40 ) having contact with the thin-film layer sequence ( 14 ); applying a diffusion barrier layer ( 42 ) to the reflection contact layer ( 40 ); applying a solder contact layer ( 44 ) to the diffusion barrier layer ( 42 ); subjecting the reflection contact layer ( 40 ), after it has been formed and before the diffusion barrier layer ( 42 ) is applied, to heat treatment for producing an ohmic contact; and cleaning the surface of the reflection contact layer ( 40 ) with a first etching solution after the heat treatment.