LED package and fabrication method thereof
View Patent ↗An LED package and a fabrication method thereof are provided. The LED package includes an upper metal plate having an LED-receiving hole therein; a lower metal plate disposed under the upper metal plate; and an insulator which the upper metal plate and the lower metal plate from each other. A portion of the lower metal plate is exposed via the LED-receiving hole and an LED is mounted on the exposed portion of the lower metal plate and is electrically connected to both of the upper and lower metal plates. A protective cover encloses and protects exposed surfaces of the upper and lower metal plates.
1. A light emitting diode (LED) package, comprising:
an upper metal plate having an LED-receiving hole;
a lower metal plate mounted to a lower surface of the upper metal plate via an insulator disposed therebetween, wherein a portion of the lower metal plate is exposed via the LED-receiving hole in the upper metal plate;
an LED mounted on the exposed portion of the lower metal plate and electrically connected to the upper and lower metal plates; and
a protective cover which encloses exposed surfaces of the upper and lower metal plates,
wherein the LED is mounted on the exposed portion of the lower metal plate via a sub-mount,
wherein the sub-mount comprises a first electrode and a second electrode;
wherein the first and second electrodes are soldered to the LED; and
wherein the first electrode is connected to the upper metal plate via at least one first wire and the second electrode is connected to the lower metal plate via at least one second wire.
2. The LED package according to claim 1 , wherein at least one of the upper metal plate and the lower metal plate includes a lead extending from a side thereof wherein the lead forms an integrated single body together with the corresponding metal plate.
3. The LED package according to claim 2 , wherein the lead projects through the protective cover.
4. The LED package according to claim 1 , wherein
the upper metal plate includes a first lead extending from a side thereof, wherein the first lead forms an integrated single body together with the upper metal plate, and
the lower metal plate includes a second lead extending from a side thereof, wherein the second lead forms an integrated single body together with the lower metal plate.
5. The LED package according to claim 1 , further comprising a lens mounted on the upper metal plate.
6. The LED package according to claim 5 , wherein the protective cover and the lens are formed as an integrated single body.
7. The LED package according to claim 1 , wherein the upper and lower metal plates are made of aluminum (Al) or copper (Cu).
8. The LED package according to claim 1 , wherein an inner circumference of the LED-receiving hole becomes larger from the lower surface to an upper surface of the upper metal plate, and a reflective coating layer is disposed on an inner circumferential surface of the LED-receiving hole.
9. The LED package according to claim 1 , wherein the insulator adheres the upper metal plate to the lower metal plate and includes a penetration hole disposed in a position corresponding to a position of the LED receiving hole.
10. The LED package according to claim 9 , wherein the insulator comprises a polymer film.
11. The LED package according to claim 1 , wherein the insulator comprises a plastic material.
12. The LED package according to claim 11 , wherein the insulator is formed by injecting a plastic mold material into a gap between the upper and lower metal plates.
13. The LED package according to claim 1 , wherein the insulator and the protective cover are formed by a plastic molding method.