LIGHT-EMITTING DIODE ELEMENT AND LIGHT-EMITTING DIODE DEVICE
First Claim
1. A light-emitting diode element, comprising:
- a first semiconductor layer of a first conductivity type having a first front surface region, a second front surface region, and a rear surface, the first semiconductor layer being made of a gallium nitride-based compound;
a second semiconductor layer of a second conductivity type, which is provided at the first front surface region;
an active layer, which is positioned between the first semiconductor layer and the second semiconductor layer;
a first electrode, which is provided on a principal surface of the second semiconductor layer;
a first insulating film, which is provided on an inner wall of a through hole, the through hole penetrating through the first semiconductor layer and having openings in the second front surface region and the rear surface;
a conductor portion, which is provided on a surface of the first insulating film inside the through hole;
a second electrode, which is provided at the second front surface region and is in contact with the conductor portion; and
a third electrode, which is provided on the rear surface of the first semiconductor layer and is in contact with the conductor portion,wherein, when seen in a direction perpendicular to a principal surface of the first semiconductor layer, the third electrode is provided in a region that overlaps the first electrode.
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Accused Products
Abstract
A light-emitting diode element disclosed in the present application, comprises a first semiconductor layer made of a gallium nitride-based compound and having first and second front surface regions and a rear surface, a second semiconductor layer at the first front surface region and an active layer interposed therebetween. A first electrode is provided on a principal surface of the second semiconductor layer. A second electrode is provided at the second front surface region. A third electrode is provided on the rear surface. A thorough hole having openings in the second front surface region and the rear surface is provided in the first semiconductor layer, and a conductor portion is provided in the through hole.
31 Citations
17 Claims
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1. A light-emitting diode element, comprising:
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a first semiconductor layer of a first conductivity type having a first front surface region, a second front surface region, and a rear surface, the first semiconductor layer being made of a gallium nitride-based compound; a second semiconductor layer of a second conductivity type, which is provided at the first front surface region; an active layer, which is positioned between the first semiconductor layer and the second semiconductor layer; a first electrode, which is provided on a principal surface of the second semiconductor layer; a first insulating film, which is provided on an inner wall of a through hole, the through hole penetrating through the first semiconductor layer and having openings in the second front surface region and the rear surface; a conductor portion, which is provided on a surface of the first insulating film inside the through hole; a second electrode, which is provided at the second front surface region and is in contact with the conductor portion; and a third electrode, which is provided on the rear surface of the first semiconductor layer and is in contact with the conductor portion, wherein, when seen in a direction perpendicular to a principal surface of the first semiconductor layer, the third electrode is provided in a region that overlaps the first electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 16)
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10. A light-emitting diode element, comprising:
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a first semiconductor layer of a first conductivity type including a semiconductor substrate of the first conductivity type and a gallium nitride-based compound semiconductor layer, the semiconductor substrate having a principal surface and a rear surface, the gallium nitride-based compound semiconductor layer being formed on the principal surface of the semiconductor substrate; a second semiconductor layer of a second conductivity type, which is provided at a principal surface of the gallium nitride-based compound semiconductor layer; an active layer, which is positioned between the first semiconductor layer and the second semiconductor layer; a first electrode, which is provided in a first region of a principal surface of the second semiconductor layer; a first insulating film, which is provided on an inner wall of a through hole, the through hole penetrating through the first semiconductor layer, the second semiconductor layer, and the active layer and having openings in a second region of the principal surface of the second semiconductor layer and in the rear surface of the semiconductor substrate; a conductor portion, which is provided on a surface of the first insulating film inside the through hole; a second electrode, which is provided at the second region and is in contact with the conductor portion; and a third electrode, which is provided on the rear surface of the semiconductor substrate and is in contact with the conductor portion, wherein; when seen in a direction perpendicular to the principal surface of the first semiconductor layer, the third electrode is provided in a region that overlaps the first electrode; and the light-emitting diode element further comprises a second insulating film which is provided in a region of the second region which is positioned around the through hole, and the second electrode is provided on the second insulating film. - View Dependent Claims (11, 12, 13, 14, 15, 17)
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Specification