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

Claim 0:
1. 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 including 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, and having a hole passing through the second conductivity-type semiconductor layer and the active layer;
a first electrode layer disposed between the substrate structure and the light emitting structure, and connected to the first conductivity-type semiconductor layer through the hole, 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, and connected to the second conductivity-type semiconductor layer, the second electrode layer 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;
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 in the first region exposing a portion of the first electrode extension;
a pad electrode layer disposed on the exposed portion of the first electrode extension through the opening, 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; and
a first pad and a second pad, respectively disposed on the upper surface of the pad electrode layer and the upper surface of the second electrode extension.