Carrier for a light emitting device
View Patent ↗A semiconductor light emitting device is mounted on a support substrate. The support substrate is disposed in an opening in a carrier. In some embodiments, the support substrate is a ceramic tile and the carrier is a low cost material with a lateral extent large enough to support a lens molded over or attached to the carrier.
1. A structure comprising:
a semiconductor light emitting device;
a support substrate, wherein the semiconductor light emitting device is mounted on the support substrate; and
a carrier having an opening, wherein the support substrate is disposed in the opening and the support substrate is mechanically connected to the carrier through at least one of a top surface of the support substrate and a side surface of the support substrate;
wherein a bottom surface of the carrier is disposed at a higher elevation than a bottom surface of the support substrate.
2. The structure of claim 1 wherein the support substrate is ceramic.
3. The structure of claim 1 wherein the support substrate is electrically connected to the carrier by wire bonds formed on top surfaces of the support substrate and the carrier.
4. The structure of claim 1 wherein the support substrate is electrically connected to the carrier by electrical connections disposed on a top surface of the support substrate.
5. The structure of claim 1 wherein the support substrate is electrically connected to the carrier by electrical connections disposed on at least one side surface of the support substrate.
6. The structure of claim 1 further comprising a lens disposed over the semiconductor light emitting device, wherein a bottom surface of the lens contacts the carrier.
7. The structure of claim 6 wherein the lens has a lateral extent larger than the support substrate.
8. The structure of claim 6 wherein the lens is attached to the carrier.
9. The structure of claim 6 wherein the lens is molded over the semiconductor light emitting device, support substrate, and carrier.
10. The structure of claim 9 wherein the lens mechanically connects the support substrate to the carrier.
11. The structure of claim 9 further comprising an additional opening in the carrier, wherein the additional opening undercuts a surface of the carrier, and wherein lens material is disposed in the additional opening during molding.
12. The structure of claim 1 wherein the support substrate is configured to have a thermally conductive path from the semiconductor light emitting device to a bottom surface of the support substrate.
13. The structure of claim 1 wherein the opening extends through an entire thickness of the carrier.
14. The structure of claim 1 wherein:
a wavelength converting element is attached to the semiconductor light emitting device; and
a top surface of the wavelength converting element is disposed at a higher elevation than a top surface of the carrier.
15. A method comprising:
providing a semiconductor light emitting device mounted on a support substrate;
positioning the support substrate in an opening in a carrier such that a bottom surface of the carrier is disposed at a higher elevation than a bottom surface of the support substrate; and
mechanically connecting the carrier to the support substrate through at least one of a top surface of the support substrate and a side surface of the support substrate.
16. The method of claim 15 wherein mechanically connecting the carrier to the support substrate comprises gluing the carrier to the support substrate.
17. The method of claim 15 wherein mechanically connecting the carrier to the support substrate comprises molding a lens over the carrier and support substrate.