Patent ID: 9303178
Filing Date: 2016-04-05
CPC Classification: C09D,C09K,H01L

Claim Text:
1. A method of producing a semiconductor body comprising: providing a semiconductor wafer having a separating region arranged between two chip regions, wherein the chip regions have light emitting diode structures with a semiconductor layer sequence having an outermost protection layer and an underlying metallic reflective layer, and the refractive index of the outermost layer is greater than 1, forming a suspension layer on the semiconductor wafer from a suspension, said suspension layer protecting semiconductor material and comprising a carrier medium, inorganic particles and a plasticizer having a cooling effect during laser treatment, wherein the inorganic particles contain at least one selected from the group consisting of titanium oxide, zinc oxide, aluminum nitride, silicon nitride and boron nitride, and separating the semiconductor wafer along the separating region with a laser.