Light emitting diode package and method of manufacturing the same

• US 9,502,617 B2
• Filed: 05/05/2015
• Issued: 11/22/2016
• Est. Priority Date: 02/23/2006
• Status: Active Grant

• Current Assignee: Suzhou Lekin Semiconductor Company Limited
• Original Assignee: LG Innotek Company Limited (LG Corporation)
• Inventors: Son, Won-Jin
• Primary Examiner(s): Lopez, Fei Fei Yeung
• Application Number:
  US14/704,678
• Publication Number:
  US 20150235997A1
• Time in Patent Office: 567 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H01L 2224/48091 Arched
• CPC Class Codes: H01L 2224/49107 on the semiconductor or solid-state body
• CPC Class Codes: H01L 25/0753 the devices being arranged next to each other
• CPC Class Codes: H01L 2924/00014 the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
• CPC Class Codes: H01L 33/38 with a particular shape
• CPC Class Codes: H01L 33/48 characterised by the semiconductor body packages
• CPC Class Codes: H01L 33/483 Containers
• CPC Class Codes: H01L 33/486 adapted for surface mounting
• CPC Class Codes: H01L 33/50 Wavelength conversion elements
• CPC Class Codes: H01L 33/62 Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls

Abstract

A light emitting diode package including a package body with a cavity, a plurality of light emitting diode (LED) chips in the cavity, a plurality of wires connected to the plurality of LED chips, and a plurality of lead frames in the package body, wherein the lead frames comprise a first lead frame electrically connected to a first electrode of a first LED chip, a second lead frame electrically connected to a second electrode of the first LED chip and a second electrode of a second LED chip, a third lead frame electrically connected to a first electrode of the second LED chip, and fourth lead frame electrically connected to a second electrode of a third LED chip. Further, ends of the lead frames are exposed outside of the package body and penetrate the package body, and the first electrodes are P electrodes and the second electrodes are N electrodes.

Claims

1. A light emitting diode package comprising:

a package body with a cavity, the package body comprising at least two protrusion portions and a recess portion disposed between the at least two protrusion portions;

a plurality of electrodes on the package body; and

a plurality of light emitting diode (LED) chips in the cavity;

wherein a bottom portion of the at least one of the plurality of electrodes is exposed through the recess portion, and

wherein the at least one of the electrodes is not electrically connected to the plurality of the LED chips.

2. The light emitting diode package according to claim 1, wherein a lateral width of the package body is greater than a maximum lateral width of the at least one of the plurality of electrodes.

3. The light emitting diode package according to claim 1, wherein the bottom portion exposed through the recess portion is not exposed to an outside surface of the package body.

4. The light emitting diode package according to claim 1, wherein the bottom portion exposed through the recess portion is not extended to a lateral surface of the package body.

5. The light emitting diode package according to claim 1, further comprising a phosphor disposed on the plurality of LED chips;

and

a plurality of wires electrically connected to the plurality of LED chips in common.

6. The light emitting diode package according to claim 1, wherein at least one of the plurality of electrodes is exposed through the recess portion.

7. The light emitting diode package according to claim 1, wherein the bottom portion exposed through the recess portion is disposed between the at least two protrusion portions.

8. The light emitting diode package according to claim 1, wherein the bottom portion of the at least one of the plurality of electrodes exposed through the recess portion vertically overlaps with the at least one of the plurality of LED chips, and

a lateral width of the bottom portion of the at least one of the plurality of electrodes overlapped with the at least one of the plurality of LED chips is smaller than a lateral width of the at least one of the plurality of LED chips overlapped with the bottom portion of the at least one of the plurality of electrodes.

9. The light emitting diode package according to claim 1, wherein the at least one of the plurality of electrodes whose bottom portion is exposed through the recess portion penetrates the package body.

10. The light emitting diode package according to claim 1, wherein the bottom portion of the at least one of the plurality of electrodes is substantially flush with a bottom surface of the package body, and

wherein the bottom portion exposed through the recess portion is surrounded by the package body.

11. A light emitting diode package, comprising:

a package body having an upper portion including a cavity, and a lower portion having a recess portion being stepped down from the lowermost surface of the package body;

a plurality of LED chips in the cavity of the package body;

a plurality of electrodes on the package body,

wherein at least one of the electrodes passes through the package body such that the at least one of the electrodes is extended from the cavity of the package body to the recess portion of the lower portion of the package body, and

wherein the at least one of the electrodes is not electrically connected to the plurality of the LED chips.

12. The light emitting diode package according to claim 11, wherein the plurality of the LED chips are spaced from each other by a predetermined distance and disposed in a line in the cavity.

13. The light emitting diode package according to claim 11, wherein the package body comprising at least two protrusion portions and the recess portion disposed between the at least two protrusion portions.

14. The light emitting diode package according to claim 11, wherein a bottom portion of the at least one of the electrodes is exposed through the recess portion.

15. The light emitting diode package according to claim 11, wherein a bottom portion of the at least one of the electrodes is substantially flush with a bottom surface of the package body.

16. The light emitting diode package according to claim 11, further comprising a mold member in the cavity and a phosphor disposed in the mold member,

wherein the at least one of the electrodes on the package body contacts the mold member or the phosphor.

17. The light emitting diode package according to claim 14, wherein the bottom portion exposed through the recess portion is disposed at a center of the package body.

18. The light emitting diode package according to claim 11 further comprising a plurality of wires electrically connected to the plurality of LED chips in common.

19. The light emitting diode package according to claim 11, wherein a width of the recess portion is larger than a width of the at least one of the plurality of electrodes whose bottom portion is exposed through the recess portion.

20. The light emitting diode package according to claim 14, wherein the bottom portion exposed through the recess portion is not extended to a lateral surface of the package body.