Patent ID: 8115222
Filing Date: 2012-02-14
Classification: H01L

Abstract:
1. A semiconductor light emitting device comprising: a substrate; an n-type semiconductor layer which is placed on the substrate, and is doped with the n-type impurity; an active layer placed on the n-type semiconductor layer; a p-type semiconductor layer which is placed on the active layer, and is doped with the p-type impurity; a first metal layer which is placed on the p-type semiconductor layer, and has a first pattern width; a second metal layer placed on the first metal layer; a transparent electrode layer which is placed on the second metal layer and the p type semiconductor layer, and has an opening patterned with a second pattern width on the second metal layer; an insulating film which is placed on the transparent electrode layer and the second metal layer, and has an opening patterned with the third pattern width on the second metal layer; a third metal layer placed on the second metal layer of an opening patterned with the insulating film and the third pattern width; and a fourth metal layer placed on the third metal layer.