# US 9,041,039 B2 · Semiconductor light emitting element

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- Number: US 9,041,039 B2
- Document ID: US9041039B2
- Status: Granted
- Kind: B2
- Application number: 14/167,016
- Filed: 2014-01-29
- Published: 2014-07-31
- Granted: 2015-05-26
- Earliest claimed: 2013-01-30
- Assignees: Nichia Corporation
- Applicants: Nichia Corporation
- Inventors: Keiji Emura; Akihiro Miyagi; Shun Kitahama
- Web page: https://patentgrep.com/patent/US9041039B2

## CPC

- H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls
- H10H 20/819: characterised by their shape, e.g. curved or truncated substrates
- H10H 29/10: Integrated devices comprising at least one light-emitting semiconductor component covered by group H10H20/00 (active-matrix LED displays H10H29/30)
- H10H 29/142: {Two-dimensional arrangements, e.g. asymmetric LED layout}
- H10H 20/032: {of electrodes}
- H10H 20/813: having a plurality of light-emitting regions, e.g. multi-junction LEDs or light-emitting devices having photoluminescent regions within the bodies
- H10H 20/831: characterised by their shape
- H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS

## Abstract

A semiconductor light emitting element includes: an insulating substrate having a plurality of convex portions on a surface thereof; a plurality of light emitting element components having semiconductor laminated bodies that are laminated on the insulating substrate and are separated from one another by a groove that exposes the convex portions; and a connector connecting between the light emitting element components. The light emitting element components include a first light emitting element component and a second light emitting element component. The first light emitting element component is separated from the second light emitting element component with the groove in between, and has a first protrusion that protrudes toward the second light emitting element component. The connector includes a first connector having a shape that straddles the groove and that follows the convex portions, and has a straight section.

## Claims

### Claim 1

A semiconductor light emitting element comprising:
an insulating substrate having a plurality of convex portions on a surface thereof;
a plurality of light emitting element components having semiconductor laminated bodies that are laminated on the insulating substrate and are separated from one another by a groove that exposes the convex portions on the surface of the insulating substrate; and
a connector connecting between the light emitting element components,
the light emitting element components including a first light emitting element component and a second light emitting element component,
the first light emitting element component being separated from the second light emitting element component with the groove in between, and having a first protrusion that protrudes toward the second light emitting element component, and
the connector including a first connector having a shape that straddles the groove separating the first protrusion and the second light emitting element component and that follows the convex portions on the surface of the insulating substrate, and has a straight section extending from the first protrusion toward the second light emitting element component in plan view.

### Claim 2 (depends on 1)

The semiconductor light emitting element according to claim 1, wherein
the first light emitting element component and the second light emitting element component are quadrangular in plan view.

### Claim 3 (depends on 2)

The semiconductor light emitting element according to claim 2, wherein
the first protrusion protrudes toward a corner of the second light emitting element component at a corner of the first light emitting element component, and
the first connector extends from the first protrusion toward the corner of the second light emitting element component.

### Claim 4 (depends on 2)

The semiconductor light emitting element according to claim 2, wherein
the light emitting element components are disposed in a matrix in which sides of the light emitting element components in a column direction and a row direction in plan view face each other.

### Claim 5 (depends on 1)

The semiconductor light emitting element according to claim 1, wherein
the first light emitting element component and the second light emitting element component are disposed obliquely in plan view.

### Claim 6 (depends on 2)

The semiconductor light emitting element according to claim 2, wherein
the second light emitting element component has a second protrusion that is disposed at a corner of the second light emitting element and protrudes toward the first protrusion.

### Claim 7 (depends on 2)

The semiconductor light emitting element according to claim 2, wherein
each of the semiconductor laminated bodies includes a first semiconductor layer, an active layer, and a second semiconductor layer laminated in this order, and the first light emitting element component has an exposed portion including the first protrusion where the first semiconductor layer is exposed at a corner of the first light emitting element component, and
the connector is electrically connected to the first semiconductor layer on the exposed portion.

### Claim 8 (depends on 2)

The semiconductor light emitting element according to claim 2, wherein
the distance from the first protrusion to the corner of the second light emitting element component is the same as the maximum distance between two adjacent light emitting elements in the column direction or the row direction.

### Claim 9 (depends on 4)

The semiconductor light emitting element according to claim 4, further comprising
additional connectors connecting the light emitting element components,
the additional connectors include a second connector connecting two adjacent ones of the light emitting element components in the column direction or the row direction, and
a distance between the two adjacent ones of the light emitting element components connected by the second connector is greater than a distance between two adjacent ones of the light emitting element components in the column direction or the row direction that are not connected by the second connector.

### Claim 10 (depends on 1)

The semiconductor light emitting element according to claim 1, wherein
the light emitting element components are arranged in a matrix of having an even number of columns and an even number of rows.

### Claim 11 (depends on 1)

The semiconductor light emitting element according to claim 1, further comprising
an insulating film covering the groove, side faces of the semiconductor laminated bodies adjacent to the groove, and the semiconductor laminated bodies directly under the connector.

### Claim 12 (depends on 1)

The semiconductor light emitting element according to claim 1, wherein
each of the semiconductor laminated bodies includes a first semiconductor layer, an active layer, and a second semiconductor layer laminated in this order, and includes a first electrode and a second electrode each having a slender shape and electrically connected to the first semiconductor layer and the second semiconductor layer, respectively, and
the connector is electrically connected to the first electrode and the second electrode, respectively, on the first semiconductor layer and the second semiconductor layer, and the connector is wider than the first electrode and the second electrode.

### Claim 13 (depends on 1)

The semiconductor light emitting element according to claim 1, wherein
each of the semiconductor laminated bodies includes a first semiconductor layer, an active layer, and a second semiconductor layer laminated in this order, and
the connector has a shape that is wider at a part straddling the groove than a width at a part disposed on the first semiconductor layer and the second semiconductor layer.

### Claim 14 (depends on 12)

The semiconductor light emitting element according to claim 12, wherein
the connector is connected to a long side of the first electrode and the second electrode.

### Claim 15 (depends on 2)

The semiconductor light emitting element according to claim 2, wherein
the first protrusion protrudes toward the second light emitting element component from a side of the first light emitting element component.

### Claim 16 (depends on 2)

The semiconductor light emitting element according to claim 2, wherein
the first protrusion protrudes toward a side of the second light emitting element component from a side of the first light emitting element component.

### Claim 17 (depends on 2)

The semiconductor light emitting element according to claim 2, wherein
the second light emitting element component has a second protrusion that protrudes toward the first protrusion from a side of the second light emitting element component.

### Claim 18

A semiconductor light emitting element comprising:
an insulating substrate having a plurality of convex portions on a surface thereof;
a plurality of light emitting element components having semiconductor laminated bodies that are laminated on the insulating substrate and are separated from one another by a groove that exposes the convex portions on the surface of the insulating substrate, and the light emitting element components being disposed in a matrix in which sides of the light emitting element components in a column direction and a row direction in plan view face each other; and
a plurality of connectors connecting the light emitting element components,
the light emitting element components including a first light emitting element component and a second light emitting element component disposed obliquely in plan view,
the first light emitting element component having a first protrusion disposed at a corner of the first light emitting element and protruding toward a corner of the second light emitting element component, and
the connectors including a first connector having a shape that straddles the groove separating the first protrusion and the corner of the second light emitting element component and that follows the convex portions on the surface of the insulating substrate, and the first connector having a straight section extending from the first protrusion toward the corner of the second light emitting element component.

### Claim 19 (depends on 18)

The semiconductor light emitting element according to claim 18, wherein
the second light emitting element component has a second protrusion that is disposed at the corner of the second light emitting element component and protrudes toward the first protrusion.

### Claim 20 (depends on 18)

The semiconductor light emitting element according to claim 18, wherein
each of the semiconductor laminated bodies includes a first semiconductor layer, an active layer, and a second semiconductor layer laminated in this order, and the first light emitting element component has an exposed portion including the first protrusion where the first semiconductor layer is exposed at the corner of the first light emitting element component, and
at least one of the connectors is electrically connected to the first semiconductor layer on the exposed portion.

### Claim 21 (depends on 18)

The semiconductor light emitting element according to claim 18, wherein
a distance from the first protrusion to the corner of the second light emitting element component is the same as a maximum distance between two adjacent ones of the light emitting elements in the column direction or the row direction.

### Claim 22 (depends on 19)

The semiconductor light emitting element according to claim 19, wherein
a distance between the first protrusion and the second protrusion is the same as a maximum distance between two adjacent ones of the light emitting element components in the column direction or the row direction.

### Claim 23 (depends on 18)

The semiconductor light emitting element according to claim 18, wherein
the connectors include a second connector connecting two adjacent ones of the light emitting element components in the column direction or the row direction, and
a distance between the two adjacent ones of the light emitting element components connected by the second connector is greater than a distance between two adjacent ones of the light emitting element components in the column direction or the row direction but are not connected by the second connector.

### Claim 24 (depends on 18)

The semiconductor light emitting element according to claim 18, wherein
the light emitting element components are arranged in a matrix of having an even number of columns and an even number of rows.

### Claim 25 (depends on 18)

The semiconductor light emitting element according to claim 18, further comprising
an insulating film that covers the groove, side faces of the semiconductor laminated bodies adjacent to the groove, and the semiconductor laminated bodies directly under the connector.

### Claim 26 (depends on 18)

The semiconductor light emitting element according to claim 18, wherein
each of the semiconductor laminated bodies includes a first semiconductor layer, an active layer, and a second semiconductor layer laminated in this order, and includes a first electrode and a second electrode each having a slender shape and electrically connected to the first semiconductor layer and the second semiconductor layer, respectively, and
the connectors are electrically connected to the first electrode and the second electrode, respectively, on the first semiconductor layer and the second semiconductor layer, and the connectors are wider than the first electrode and the second electrode.

### Claim 27 (depends on 18)

The semiconductor light emitting element according to claim 18, wherein
each of the semiconductor laminated bodies includes a first semiconductor layer, an active layer, and a second semiconductor layer laminated in this order, and
each of the connectors has a shape that is wider at a part straddling the groove than a width at a part disposed on the first semiconductor layer and the second semiconductor layer.

### Claim 28 (depends on 26)

The semiconductor light emitting element according to claim 26, wherein
the connectors are connected to a long side of the first electrode and the second electrode.
