Patent ID: 8129209
Filing Date: 2012-03-06
Classification: H01L

Abstract:
1. A method for an epitaxial fabrication of a thin-film light emitting-diode, the method comprising the steps of: forming GaN-based layers on a substrate which comprises sapphire, the GaN-based layers comprising an active layer sequence for emitting radiation; patterning the GaN-based layers into individual semiconductor layer stacks after they have been deposited on the substrate comprising sapphire; applying an electrically conductive carrier to the semiconductor layer stacks on a side of the semiconductor layer stacks which faces away from the substrate comprising sapphire and subsequently removing the substrate comprising sapphire such that the substrate comprising sapphire can be reused at least in part; forming a contact surface on surfaces of the semiconductor layer stacks from which the substrate comprising sapphire has been removed; and separating the semiconductor layer stacks from each other into a plurality of thin-film light-emitting diodes.