Integrated reflector cup for a light emitting device mount
View Patent ↗A mount for a semiconductor light emitting device includes an integrated reflector cup. The reflector cup includes a wall formed on the mount and shaped and positioned to reflect side light emitted from the light emitting device along a vertical axis of the device/mount combination. The wall may be covered by a reflective material such as a reflective metal.
1. A device comprising:
a semiconductor light emitting device; and
a mount comprising:
a body comprising silicon, the body having a substantially flat surface, and
a quantity of material attached to the substantially flat surface of the body, the quantity of material forming a wall; wherein:
the wall is reflective to light emitted from the semiconductor light emitting device; and
the semiconductor light emitting device is attached to the mount.
2. The device of claim 1 wherein the quantity of material is reflective.
3. The device of claim 1 further comprising a reflective layer formed on the wall.
4. The device of claim 3 wherein the reflective layer is reflective of light emitted by the semiconductor light emitting device.
5. The device of claim 3 wherein the reflective layer comprises a metal selected from the group of Al, Ag, Au, Pt, Pd, In, Ni, and Cr.
6. The device of claim 3 wherein the reflective layer is a metal.
7. The device of claim 6 further comprising a dielectric layer overlying the metal reflective layer.
8. The device of claim 3 wherein the reflective layer comprises a dielectric stack.
9. The device of claim 1 wherein the mount comprises a material selected from the group of silicon, ceramic, polymer, FR4, oxides of aluminum, and nitrides of aluminum.
10. The device of claim 1 wherein the quantity of material comprises one of BCB, PMMA, photoresist, polyamides, glass, spin-on-glass, Al, Ag, Au, Pt, Pd, In, Ni, and Cr.
11. The device of claim 1 wherein the wall has a height between about a height of the semiconductor light emitting device plus 25% and about ten times the height of the semiconductor light emitting device.
12. The device of claim 1 further comprising a plurality of leads electrically connected to the semiconductor light emitting device and a cover overlying the semiconductor light emitting device.
13. The device of claim 1 wherein the wall is angled.
14. The device of claim 1 wherein the wall is parabolic.
15. The device of claim 1 wherein the wall is shaped and positioned to reflect light emitted by the semiconductor light emitting device.
16. The device of claim 1 wherein the quantity of material is a quantity of first material, the device further comprising a quantity of second material disposed between the device and the wall.
17. The device of claim 16 wherein quantity of second material has a higher index of refraction than the quantity of first material.
18. The device of claim 16 wherein the quantity of second material comprises air.
19. The device of claim 16 wherein the quantity of first material encapsulates a region of air.
20. The device of claim 16 wherein the quantity of second material comprises one of epoxy and silicone.
21. The device of claim 16 wherein the quantity of second material has an index of refraction between about 1.4 and about 1.7.
22. The device of claim 1 further comprising an adhesive disposed between the quantity of material and the body.