Patent ID: 8330174

Claim:
An LED having a radiation-emitting active layer, an n-type contact, a p-type contact and a current spreading layer wherein: the current spreading layer is arranged between the active layer and the n-type contact, the current spreading layer has a multiply repeating layer sequence, the layer sequence has at least one n-doped layer, an undoped layer and a layer composed of Al x Ga 1-x N, where 0<x<1, the layer composed of Al x Ga 1-x N has a concentration gradient of the Al content, the layer composed of Al x Ga 1-x N is arranged between the undoped layer and the n-doped layer, the layer composed of Al x Ga 1-x N at least partly has a doping, a partial region of the layer composed of Al x Ga 1-x N which faces the active layer is doped, and a partial region of the layer composed of Al x Ga 1-x N which is remote from the active layer is undoped.