Light emitting semiconductor device for enhancing light extraction efficiency

A semiconductor device comprising:

• a semiconductor structure including a first semiconductor layer, a second semiconductor layer, and an active layer;
• a first electrode provided on a first surface of the first semiconductor layer;
• a second electrode provided on a first surface of the second semiconductor layer, the active layer being provided between the first surface of the first semiconductor layer and a second surface of the second semiconductor layer that is opposite to the first surface of the second semiconductor layer;
• a first insulation layer provided on the first surface of the first semiconductor layer, the first surface of the second semiconductor layer, and a side surface of the active layer;
• a first cover electrode provided on the first electrode;
• a second cover electrode provided on the second electrode,
• a second insulation layer provided on the first cover electrode, the second cover electrode, and the first insulation layer,
• wherein:
• the second insulation layer includes a first opening over the first cover electrode and a second opening over the second cover electrode, and
• a plan view of the semiconductor device includes a light emitting region that includes a surface of the second cover electrode in the second opening of the second insulation layer, and a non-light emitting region that includes a surface of the first cover electrode in the first opening of the second insulation layer, and a first area of the non-light emitting region is smaller than a second area of the light emitting region,
• wherein the second cover electrode includes a plurality of second branch electrodes extending in a first plan direction and a second connection electrode extending in a second plan direction to connect the plurality of branch electrodes, and the first cover electrode includes a plurality of first branch electrodes extending in the first plan direction and provided between the second branch electrodes and a first connection electrode in the second plan direction to connect the plurality of first branch electrodes.