LIGHT EMITTING DIODE PACKAGE

• US 20130020600A1
• Filed: 07/20/2012
• Published: 01/24/2013
• Est. Priority Date: 07/21/2011
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: YOO, Cheol Jun
• Application Number:
  US13/554,765
• Publication Number:
  US 20130020600A1
• Time in Patent Office: Days
• US Class Current: 257/98
• CPC Class Codes: H01L 2224/49107 on the semiconductor or solid-state body
• CPC Class Codes: H01L 2224/73265 Layer and wire connectors
• CPC Class Codes: H01L 33/486 adapted for surface mounting
• CPC Class Codes: H01L 33/56 Materials, e.g. epoxy or silicone resin
• CPC Class Codes: H01L 33/60 Reflective elements

Abstract

A light emitting diode (LED) package is disclosed. The LED package includes a first metal line layer and a second metal line layer bonded to a circuit substrate, a thin film substrate disposed on the first metal line layer and the second metal line layer and configured to include an opening that exposes the first metal line layer and the second metal line layer, and an LED disposed in the opening and brought into contact with the first metal line layer and the second metal line layer.

Claims

1. A light emitting diode (LED) package comprising:

a first metal line layer and a second metal line layer bonded to a circuit substrate;

a thin film substrate disposed on the first metal line layer and the second metal line layer and including an opening that exposes the first metal line layer and the second metal line layer; and

an LED disposed in the opening and contacting the first metal line layer and the second metal line layer.

2. The LED package of claim 1, wherein the thin film substrate has a second height equal to or less than a first height, which is, a height of the LED.

3. The LED package of claim 1, wherein the thin film substrate has a second height greater than a first height, which is a height of the LED.

4. The LED package of claim 1, wherein the opening has a second surface area greater than a first surface area, which is a surface area of the LED.

5. The LED package of claim 3, further comprising a light reflective filling material disposed between the opening and the LED.

6. The LED package of claim 4, wherein the light reflective filling material comprises an organic or inorganic polymer, a light reflective material, a reinforcing material, an adhesive, and an antioxidant.

7. The LED package of claim 1, wherein the first metal line layer and the second metal line layer are disposed at a predetermined distance from each other on the circuit substrate.

8. The LED package of claim 7, wherein the first metal line layer and the second metal line layer each comprise a plurality of holes disposed on an exposed region of the thin film substrate, exposed through the opening, to expose the circuit substrate.

9. The LED package of claim 1, wherein the first metal line layer and the second metal line layer are disposed on a front surface of the circuit substrate at a distance from each other, and exposed at uniform intervals along an inside of the opening of the thin film substrate.

10. The LED package of claim 1, wherein the opening comprises:

a first opening to expose the first metal line layer; and

a second opening to expose the second metal line layer.

11. The LED package of claim 10, wherein the LED is disposed in the first opening and electrically connected with the first metal line layer, and also electrically connected with the second metal line layer exposed through the second opening by a wire.

12. The LED package of claim 10, wherein the opening further comprises a third opening to expose the first metal line layer.

13. The LED package of claim 12, wherein the LED is disposed in the first opening and electrically connected with the second metal line layer exposed through the second opening by a first wire, and also electrically connected with the first metal line layer exposed through the third opening by a second wire.

14. The LED package of claim 1, wherein an inner surface of the opening is inclined toward an upper surface of the thin film substrate.

15. The LED package of claim 1, further comprising a light reflective layer extending from an inner surface of the opening to an upper surface of the thin film substrate.

16. The LED package of claim 1, further comprising a lens unit disposed on the thin film substrate to cover the LED.

17. The LED package of claim 1, wherein the thin film substrate comprises any one of a polyimide, an epoxy resin, a silicone resin, polyethylene terephthalate (PET) resin, a polyester resin, and a ceramic.

18. A light emitting diode (LED) package comprising:

a circuit substrate;

a thin film substrate disposed on the circuit substrate and including a first opening and a second opening exposing the circuit substrate;

a first metal line layer and a second metal line layer bonded to the thin film substrate, and respectively disposed in a first region which includes the first opening and a second region which includes the second opening;

a metal bonding layer filling in the first opening and the second opening, thereby electrically connecting the first metal line layer and the second metal line layer with the circuit substrate; and

an LED disposed on the first metal line layer and the second metal line layer.

19. The LED package of claim 18, further comprising a metal pattern layer extended from an outer surface of the thin film substrate to inner surfaces of the first opening and the second opening, passing through a bonding surface with respect to the circuit substrate.

20. The LED package of claim 18, further comprising a lens unit disposed on the thin film substrate to cover the LED.