IP Library Granted Patent US 9,818,922
Granted Patent B2
US 9,818,922 · App. 14/993,983 · Granted Nov 14, 2017

Light emitting diode package having frame with bottom surface having two surfaces different in height

Inventor: Wan Ho Kim (Gwangju, KR)
Assignee: LG INNOTEK CO., LTD.
H01L33/60H01L33/483H01L33/52H01L33/58H01L33/62H01L33/64H01L33/642H01L33/486H01L33/647H01L2224/48091H01L2224/48227H01L2224/48247
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Quick Facts
Patent No.
US 9,818,922
App. No.
14/993,983
Granted
Nov 14, 2017
Kind
B2
Abstract

Provided is a light emitting device package. It is a substrate comprising a top and a bottom surfaces being substantially parallel to each other; a light emitting diode chip on the substrate; a frame disposed around the light emitting diode chip and configured to reflect light emitted from the light emitting diode chip, the frame having an opening; a first metal layer disposed on the top surface of the substrate; a second metal layer disposed on the top surface of the substrate; a third metal layer disposed on the bottom surface of the substrate; a through hole connected between the first metal layer and the third metal layer; a material being filled in the opening of the frame; and a lens disposed on the material, wherein the substrate and the frame are separate from each other.

Claims (54)

1. A light emitting device, comprising:

a substrate including a top surface, an outermost side surface, and a bottom surface;

a light emitting diode chip on the substrate;

a reflecting member disposed on the substrate and around the light emitting diode chip and configured to reflect light emitted from the light emitting diode chip, the reflecting member having a cavity;

an upper metal layer comprising a first metal layer and a second metal layer disposed on the top surface of the substrate;

a third metal layer disposed on the bottom surface of the substrate;

a through hole connected from a portion of the upper metal layer to the third metal layer;

a reflective material on an inside surface of the through hole; and

a silicone molding layer disposed on the light emitting diode chip,

wherein the first metal layer and the second metal layer each extend to the outermost side surface of the substrate and to the bottom surface of the substrate and are separated from each other by the third metal layer, and

wherein the through hole is vertically overlapped with the light emitting diode chip.

2. The light emitting device of claim 1 , wherein the reflective material comprises Ag.

3. The light emitting device of claim 1 , wherein the through hole comprises an Air.

4. The light emitting device of claim 1 , wherein the third metal layer comprises a first end which is overlapped with the second metal layer and a second end which is not overlapped with the second metal layer.

5. The light emitting device of claim 1 , wherein the second metal layer comprises one part of the second metal layer disposed in the cavity of the reflecting member.

6. The light emitting device of claim 1 , wherein a lens is disposed on the cavity of the reflecting member.

7. The light emitting device of claim 1 , wherein the reflecting member comprises at least one protrusion protruding toward the substrate.

8. The light emitting device of claim 1 , wherein the reflecting member comprises at least one protrusion contacting the top surface of the substrate.

9. The light emitting device of claim 8 , wherein a bottom surface of the at least one protrusion is below a top surface of at least one of the first metal layer and the second metal layer.

10. The light emitting device of claim 8 , wherein the at least one protrusion is not overlapped with the light emitting diode chip.

11. The light emitting device of claim 1 , wherein an inner surface of the reflecting member comprises an inclined surface, a flat surface, and a vertical surface.

12. A light emitting device, comprising:

a substrate including a top surface, an outermost side surface, and a bottom surface;

a light emitting diode chip on the substrate;

a reflecting member disposed on the substrate and around the light emitting diode chip and configured to reflect light emitted from the light emitting diode chip, the reflecting member having a cavity;

an upper metal layer comprising a first metal layer and a second metal layer disposed on the top surface of the substrate;

a third metal layer disposed on the bottom surface of the substrate;

a through hole connected between a portion of the upper metal layer and the third metal layer; and

a silicone molding layer disposed on the light emitting diode chip,

wherein the first metal layer and the second metal layer each extend to the outermost side surface of the substrate and to the bottom surface of the substrate and are separated from each other by the third metal layer, and

wherein the through hole is vertically overlapped with the light emitting diode chip.

13. The light emitting device of claim 12 , wherein the third metal layer comprises a first end which is overlapped with the second metal layer and a second end which is not overlapped with the second metal layer.

14. The light emitting device of claim 12 , wherein the second metal layer comprises one part of the second metal layer disposed in the cavity of the reflecting member.

15. The light emitting device of claim 12 , wherein the reflecting member comprises at least one protrusion protruding toward the substrate.

16. The light emitting device of claim 15 , wherein the at least one protrusion of the reflecting member is overlapped with the first metal layer.

17. The light emitting device of claim 12 , wherein the reflecting member comprises at least one protrusion contacting the top surface of the substrate.

18. The light emitting device of claim 17 , wherein the at least one protrusion is below a top surface of at least one of the first metal layer and the second metal layer.

19. The light emitting device of claim 12 , further comprising a reflective material on an inside surface of the through hole.

20. The light emitting device of claim 12 , wherein an inner surface of the reflecting member comprises an inclined surface, a flat surface, and a vertical surface.

21. A light emitting device, comprising:

a substrate including a top surface, an outermost side surface, and a bottom surface;

a light emitting diode chip on the substrate;

a reflecting member disposed on the substrate and around the light emitting diode chip and configured to reflect light emitted from the light emitting diode chip, the reflecting member having a cavity;

an upper metal layer comprising a first metal layer and a second metal layer disposed on the top surface of the substrate;

a third metal layer disposed on the bottom surface of the substrate; and

a silicone molding layer disposed on the light emitting diode chip,

wherein the reflecting member comprises at least one protrusion protruding toward the substrate.

22. The light emitting device of claim 21 , wherein the substrate comprises a through hole connected from a portion of the upper metal layer to the third metal layer.

23. The light emitting device of claim 22 , further comprising a reflective material on an inside surface of the through hole.

24. The light emitting device of claim 23 , wherein a height of the reflective material on the inside surface of the through hole is greater than a height of the light emitting diode chip.

25. The light emitting device of claim 22 , wherein the first metal layer and the second metal layer extend to the outermost side surface of the substrate and to the bottom surface of the substrate and are separated from each other by the third metal layer.

26. The light emitting device of claim 21 , wherein a bottom surface of the at least one protrusion is below a top surface of at least one of the first metal layer and the second metal layer.

27. The light emitting device of claim 21 , wherein the at least one protrusion is not overlapped with the light emitting diode chip.

28. The light emitting device of claim 21 , wherein the at least one protrusion contacts the top surface of the substrate.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 25, 2021
From: LG INNOTEK CO., LTD.
To: SUZHOU LEKIN SEMICONDUCTOR CO., LTD.
Reel/Frame 056366/0335 →
Priority Claims (1)
KR 10-2005-0098594 · Oct 19, 2005 · national
Continuity (6)
Continuation 14305957 · Jun 16, 2014
Continuation 13872688 · Apr 29, 2013
Continuation 13176538 · Jul 5, 2011
Continuation 12552911 · Sep 2, 2009
Continuation 11583043 · Oct 19, 2006
Related Publication 20160155916A1 · Jun 2, 2016