Patent ID: 11888091
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A semiconductor light emitting device comprising:
a substrate structure having an upper surface, the upper surface having a first region, a second region, and a third region;
a light emitting structure having a first conductivity-type semiconductor layer, an active layer, and a second conductivity-type semiconductor layer, sequentially stacked on the third region of the substrate structure;
a first electrode layer disposed between the substrate structure and the light emitting structure, and connected to the first conductivity-type semiconductor layer, and the first electrode layer having a first electrode extension extending onto the first region;
a second electrode layer disposed between the first electrode layer and the light emitting structure, connected to the second conductivity-type semiconductor layer, and having a second electrode extension, extending onto the second region, wherein the second electrode extension has an upper surface higher than an upper surface of the first electrode extension;
a leveling electrode layer disposed on the upper surface of the first electrode extension, and having an upper surface that reduces a level difference between the upper surface of the first electrode extension and the upper surface of the second electrode extension;
an interlayer insulating layer disposed between the first electrode layer and the second electrode layer, and extending onto the first region and the second region, the interlayer insulating layer having an opening that exposes the first electrode extension and the leveling electrode layer; and
a first pad and a second pad, respectively disposed on the upper surface of the leveling electrode layer and the upper surface of the second electrode extension.