Light emitting diode chip having electrode pad
DCFirst Claim
1. A light emitting diode (LED) device comprising:
- a substrate;
a light emitting structure disposed over the substrate and including a first semiconductor layer, a second semiconductor layer, and an active layer disposed between the first semiconductor layer and the second semiconductor layer;
a first electrode pad disposed over the first semiconductor layer;
a transparent electrode layer disposed over the second semiconductor layer;
a second electrode pad disposed over the transparent electrode layer;
a first extension extending from the first electrode pad; and
a second extension extending from the second electrode pad,wherein the first extension includes first portions in contact with the first semiconductor layer and second portions not in contact with the first semiconductor layer, wherein one of the first portions and one of the second portions are alternately disposed along the first extension, and wherein the second extension includes a plurality of portions extending from the second electrode pad.
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Abstract
Disclosed herein is an LED chip including electrode pads. The LED chip includes a semiconductor stack including a first conductive type semiconductor layer, a second conductive type semiconductor layer on the first conductive type semiconductor layer, and an active layer interposed between the first conductive type semiconductor layer and the second conductive type semiconductor layer; a first electrode pad located on the second conductive type semiconductor layer opposite to the first conductive type semiconductor layer; a first electrode extension extending from the first electrode pad and connected to the first conductive type semiconductor layer; a second electrode pad electrically connected to the second conductive type semiconductor layer; and an insulation layer interposed between the first electrode pad and the second conductive type semiconductor layer. The LED chip includes the first electrode pad on the second conductive type semiconductor layer, thereby increasing a light emitting area.
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Citations
21 Claims
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1. A light emitting diode (LED) device comprising:
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a substrate; a light emitting structure disposed over the substrate and including a first semiconductor layer, a second semiconductor layer, and an active layer disposed between the first semiconductor layer and the second semiconductor layer; a first electrode pad disposed over the first semiconductor layer; a transparent electrode layer disposed over the second semiconductor layer; a second electrode pad disposed over the transparent electrode layer; a first extension extending from the first electrode pad; and a second extension extending from the second electrode pad, wherein the first extension includes first portions in contact with the first semiconductor layer and second portions not in contact with the first semiconductor layer, wherein one of the first portions and one of the second portions are alternately disposed along the first extension, and wherein the second extension includes a plurality of portions extending from the second electrode pad. - View Dependent Claims (2, 3, 4, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17)
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5. A light emitting diode (LED) device comprising:
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a substrate; a light emitting structure disposed over the substrate and including a first semiconductor layer, a second semiconductor layer, and an active layer disposed between the first semiconductor layer and the second semiconductor layer; a first electrode pad disposed over the first semiconductor layer; a transparent electrode layer disposed over the second semiconductor layer; a second electrode pad disposed over the transparent electrode layer; a first extension extending from the first electrode pad; and a second extension extending from the second electrode pad, wherein the first extension includes first portions in contact with the first semiconductor layer and second portions not in contact with the first semiconductor layer, wherein one of the first portions and one of the second portions are alternately disposed along the first extension, and wherein the second extension extend toward the first electrode pad and has a curved shape near the first electrode pad. - View Dependent Claims (18, 19, 20)
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14. A light emitting diode (LED) device comprising:
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a substrate; a light emitting structure disposed over the substrate and including a first semiconductor layer, a second semiconductor layer, and an active layer disposed between the first semiconductor layer and the second semiconductor layer; a first electrode pad disposed over the first semiconductor layer; a transparent electrode layer disposed over the second semiconductor layer; a second electrode pad disposed over the transparent electrode layer; a first extension extending from the first electrode pad; and a second extension extending from the second electrode pad, wherein the first extension includes first portions in contact with the first semiconductor layer and second portions not in contact with the first semiconductor layer, wherein one of the first portions and one of the second portions are alternately disposed along the first extension, and wherein one of the first portions has different length comparing to another of the first portions. - View Dependent Claims (21)
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Specification