| 摘要 |
PURPOSE: A light emitting device is provided to reduce a phenomenon that an electrode is exfoliated from a light transmission electrode layer by improving a contact area of the light transmission electrode layer. CONSTITUTION: A buffer layer(120) is formed on a substrate(110). A light emitting structure is formed on the buffer layer. The light emitting structure comprises a first conductivity semiconductor layer(130), an active layer(140), and a second conductivity semiconductor layer(150). A light transmission electrode layer(160) including a trench is formed on the light emitting structure. A current blocking layer(170) is formed between the light transmission electrode layer and the second conductivity semiconductor layer. One area of the current blocking layer is exposed by the trench. A head is projected from the light transmission electrode layer.
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