Light emitting device

A light emitting device comprising:

• a conductive substrate;
• a first electrode layer disposed on the conductive substrate;
• a light emitting structure disposed on the first electrode layer, the light emitting structure including first semiconductor layer, a second semiconductor layer, and an active layer disposed between the first semiconductor layer and the second semiconductor layer;
• and
• a second electrode layer electrically connected to the second semiconductor layer,
• wherein the first electrode layer comprises:
• a metal electrode layer disposed on the conductive substrate;
• a transparent electrode layer disposed on the metal electrode layer;
• and
• a plurality of contact portions extending from the metal electrode layer, the contact portions vertically passing through the transparent electrode layer and contacting the light emitting structure,
• wherein the contact portions are spaced from one another by a predetermined distance, and
• a diffusion area containing Be is formed in a portion of the light emitting structure contacting the contact portion.

A light emitting device package comprising a light emitting device,

• wherein the light emitting device comprises:
• a conductive substrate;
• a first electrode layer disposed on the conductive substrate;
• a light emitting structure disposed on the first electrode layer, the light emitting structure including a first semiconductor layer, a second semiconductor layer, and an active layer disposed between the first semiconductor layer and the second semiconductor layer;
• and
• a second electrode layer electrically connected to the second semiconductor layer,
• wherein the first electrode layer comprises:
• a metal electrode layer disposed on the conductive substrate;
• a transparent electrode layer disposed on the metal electrode layer;
• and
• a plurality of contact portions extending from the metal electrode layer, the contact portions vertically passing through the transparent electrode layer and contacting the light emitting structure,
• wherein the contact portions are spaced from one another by a predetermined distance, and
• a diffusion area containing Be is formed in a portion of the light emitting structure contacting the contact portion.