A method for producing optoelectronic conversion semiconductor chips and a composite of conversion semiconductor chips are disclosed. In an embodiment the method includes growing a semiconductor layer sequence on a growth substrate, applying an electric contact on to a rear side of the semiconductor layer sequence facing away from the growth substrate, thinning the growth substrate, after thinning, cutting the growth substrate at least to the semiconductor layer sequence thereby forming a first intermediate space, applying a conversion layer on to the thinned growth substrate and singulating at least the thinned growth substrate and the semiconductor layer sequence.