Light emitting device package including a substrate having at least two recessed surfaces
Disclosed is a light emitting device package. The light emitting device package includes a substrate including a recess, a light emitting chip on the substrate and a first conductive layer electrically connected to the light emitting chip. And the first conductive layer includes at least one metal layer electrically connected to the light emitting chip on an outer circumference of the substrate.
1. A light emitting device package comprising:
a substrate comprising a first cavity having a first depth recessed from an upper surface of the substrate and a second cavity having a second depth recessed from the first cavity;
a light emitting chip disposed on the second cavity;
a first conductive type metal electrically connected to the light emitting chip;
a second conductive type metal electrically connected to the light emitting chip; and
a bottom metal on a bottom surface of the substrate;
wherein a top surface of the light emitting chip is lower than a bottom surface of the first cavity,
wherein the substrate comprises a first via hole and a second via hole,
wherein the bottom metal comprises a first bottom metal, a second bottom metal, and a third bottom metal between the first bottom metal and the second bottom metal, and
wherein the first conductive type metal is electrically connected to the first bottom metal through the first via hole and the second conductive type metal is electrically connected to the second bottom metal through the second via hole.
2. The light emitting device package of claim 1 , wherein the first bottom metal, the second bottom metal and the third bottom metal comprise Au.
3. The light emitting device package of claim 1 , wherein the first bottom and the second bottom metal are apart from the third bottom metal at the bottom surface of the substrate.
4. The light emitting device package of claim 1 , wherein the third bottom metal is not electrically connected to the second conductive type metal layer.
5. The light emitting device package of claim 4 , wherein the first conductive type metal further comprises a mountable metal on the second cavity.
6. The light emitting device package of claim 4 , wherein the first conductive type metal further comprises a first exposed metal on a side surface of the substrate.
7. The light emitting device package of claim 6 , wherein the substrate comprises a recessed portion of the side surface of the substrate.
8. The light emitting device package of claim 7 , wherein the first exposed metal is disposed on the recessed portion of the side surface of the substrate.
9. The light emitting device package of claim 6 , wherein the first conductive type metal comprises an uneven shape.
10. The light emitting device package of claim 6 , further comprising a zener diode disposed on the substrate.
11. The light emitting device package of claim 1 , wherein the first via hole and the second via hole pass through a part of the substrate.
12. The light emitting device package of claim 1 , wherein the second cavity comprises an uneven shape.
13. The light emitting device package of claim 12 , wherein the uneven shape of the second cavity comprises a V-shaped groove shape.
14. The light emitting device package of claim 1 , wherein a width of the first cavity is wider than a width of the second cavity.
15. The light emitting device package of claim 1 , further comprising a phosphor on the light emitting chip.
16. The light emitting device package of claim 1 , wherein the first conductive type metal and the second conductive type metal comprise Ag and Cu.