Patent ID: 7791100
Filing Date: 2010-09-07
Classification: H01L

Abstract:
1. A vertical GaN-based LED comprising: an n-type bonding pad; an n-electrode formed under the n-type bonding pad; a light-emitting structure formed by sequentially laminating an n-type GaN layer, an active layer, and a p-type GaN layer under the n-electrode; a p-electrode formed under the light-emitting structure; and a support layer formed under the p-electrode, wherein the light-emitting structure has one or more trenches which are spaced at a predetermined distance with the n-electrode from the outermost side of the light-emitting structure and in which the trenches run through the n type GaN layer and the active layer and terminate over the p-type GaN layer, and wherein the n-electrode includes one or more negative branch electrodes extending in a direction where the negative branch electrodes are not overlapped with the trenches, the negative branch electrodes being formed on the light-emitting structure adjacent to the trench.