SUB-MOUNT, LIGHT EMITTING DEVICE INCLUDING SUB-MOUNT AND METHODS OF MANUFACTURING SUCH SUB-MOUNT AND/OR LIGHT EMITTING DEVICE
First Claim
1. A sub-mount adapted for AC and DC operation of devices mountable thereon, the sub-mount comprising:
- a base substrate including a first surface and a second surface, the first surface being different from the second surface;
a conductive pattern on the first surface;
a first pair of first and second electrodes on the second surface of the base substrate;
a second pair of first and second electrodes on the second surface of the base substrate; and
a plurality of vias extending through the base substrate between the first surface and the second surface,wherein;
the conductive pattern includes a first set of mounting portions and two via portions along a first electrical path between the first pair of first and second electrodes, and a second set of mounting portions and two via portions along a second electrical path between the second pair of first and second electrodes, the first path being independent of the second path, andeach of the via portions connecting respective portions of the conductive pattern to a respective one of the electrodes of the first and second pair of first and second electrodes through a respective one of the vias.
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Accused Products
Abstract
A sub-mount adapted for AC and DC operation of devices mountable thereon, light emitting devices including such a sub-mount, and methods of manufacturing such a sub-mount are provided. The sub-mount includes a base substrate having first and second surfaces, a conductive pattern on the first surface, first and second pairs of first and second electrodes on the second surface and vias extending through the base substrate between the first and second surfaces. The conductive pattern includes a first set of mounting portions and two via portions along a first electrical path between the first pair of first and second electrodes, and a second set of mounting portions and two via portions along a second electrical path between the second pair of first and second electrodes, the via portions connecting respective portions of the conductive pattern to respective electrodes.
6 Citations
24 Claims
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1. A sub-mount adapted for AC and DC operation of devices mountable thereon, the sub-mount comprising:
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a base substrate including a first surface and a second surface, the first surface being different from the second surface; a conductive pattern on the first surface; a first pair of first and second electrodes on the second surface of the base substrate; a second pair of first and second electrodes on the second surface of the base substrate; and a plurality of vias extending through the base substrate between the first surface and the second surface, wherein; the conductive pattern includes a first set of mounting portions and two via portions along a first electrical path between the first pair of first and second electrodes, and a second set of mounting portions and two via portions along a second electrical path between the second pair of first and second electrodes, the first path being independent of the second path, and each of the via portions connecting respective portions of the conductive pattern to a respective one of the electrodes of the first and second pair of first and second electrodes through a respective one of the vias. - View Dependent Claims (2, 3, 5, 6, 7, 9, 10, 11, 14)
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4. (canceled)
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8. (canceled)
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12. (canceled)
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13. (canceled)
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15. A light emitting device, comprising:
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at least one sub-mount including a base substrate, a first pair of first and second electrodes, a second pair of first and second electrodes, a conductive pattern, and a plurality of vias; a first set of light emitting devices mounted on the sub-mount, the first set of light emitting devices being connected between the first pair of first and second electrodes of the sub-mount; and a second set of light emitting devices mounted on the sub-mount, the second set of light emitting devices being connected between the second pair of first and second electrodes of the sub-mount; a first power supply electrode connected to one of the first and second electrodes of the first pair of electrodes and one of the first and second electrodes of the second pair of electrodes on the sub-mount; and a second power supply electrode connected to the other of the first and second electrodes of the first pair of electrodes and the other of the first and second electrodes of the second pair of electrodes on the sub-mount; wherein the sub-mount is adapted for AC and DC operation of the light emitting devices based on which one of the first and second electrodes of each pair of electrodes is connected to the to the first power supply electrode and the second power supply electrode. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A sub-mount employable for electrically connecting a plurality of light emitting devices in series and/or in parallel on a mounting substrate, the sub-mount including:
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a base substrate; a conductive pattern on the base substrate; a first pair of first and second electrodes on the base substrate; a second pair of first and second electrodes on the base substrate; and a plurality of vias extending through the base substrate, wherein; the conductive pattern includes a first set of mounting portions defining a first electrical path between the first pair of first and second electrodes through first and second ones of the plurality of vias, and a second set of mounting portions defining a second electrical path between the second pair of first and second electrodes through third and fourth ones of the plurality of vias, the first path being independent of the second path, when the sub-mount is arranged in a first orientation on the mounting substrate, the plurality of light emitting devices mountable on the first set of mounting portions and the plurality of light emitting devices mountable on the second set of mounting portions thereon are electrically connected such that current flows through the first set of light emitting devices and the second set of light emitting devices in a forward bias direction, and when the sub-mount is arranged in a second orientation on the mounting substrate, the plurality of light emitting devices mountable on the first set of mounting portions and the plurality of light emitting devices mountable on the second set of mounting portions thereon are electrically connected such that current flows through the first set of light emitting devices in a forward bias direction and current flows through the second set of light emitting devices in a reverse bias direction, the first orientation being different from the second orientation. - View Dependent Claims (23)
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24. A method of manufacturing a sub-mount adapted for AC and DC operation of devices mountable thereon, the method comprising:
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forming a plurality of vias in a base substrate; forming a conductive pattern on a first surface of the base substrate; forming a first pair of first and second electrodes on a second surface of the base substrate; forming a second pair of first and second electrodes on the second surface of the base substrate, wherein; the vias extend through the base substrate between the first surface and the second surface, the conductive pattern includes a first set of mounting portions and two via portions along a first electrical path between the first pair of first and second electrodes, and a second set of mounting portions and two via portions along a second electrical path between the second pair of first and second electrodes, the first path being independent of the second path, and each of the via portions connecting respective portions of the conductive pattern to a respective one of the electrodes of the first and second pair of first and second electrodes through a respective one of the vias.
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Specification