Vertical light source package

• US 20080087991A1
• Filed: 10/13/2006
• Published: 04/17/2008
• Est. Priority Date: 10/13/2006
• Status: Abandoned Application

• Current Assignee: Avago Technologies ECBU IP Singapore Pte Limited (Broadcom, Inc.)
• Original Assignee: Avago Technologies ECBU IP Singapore Pte Limited (Broadcom, Inc.)
• Inventors: Cheah, Chiang Sun, Koay, Ban Kuan
• Application Number:
  US11/580,391
• Publication Number:
  US 20080087991A1
• Time in Patent Office: Days
• US Class Current: 257/666
• CPC Class Codes: H01L 2224/48091 Arched
• CPC Class Codes: H01L 2224/48247 connecting the wire to a bond pad of the item
• 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 33/483 Containers
• CPC Class Codes: H01L 33/60 Reflective 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 vertical light source package uses leadframes with leads that extend in the same predefined direction. The leadframes are at least partially positioned in a structural body of the vertical light source package. The vertical light source package includes a light emitting device, such as a vertical-cavity surface-emitting laser, that is situated on one of the leadframes and electrically connected to the other leadframe.

Claims

1. A vertical light source package comprising:

a structural body including a light output end;

a light emitting device positioned in said structural body such that light from said light emitting device is emitted from said light output end of said structural body;

a first leadframe being at least partially positioned in said structural body, said first leadframe including a first region and a first elongate lead that extends from said first region in a predefined direction, said light emitting device being situated on said first region of said first leadframe; and

a second leadframe being at least partially positioned in said structural body, said second leadframe including a second region and a second elongate lead that extends from said second region in said predefined direction, said light emitting device being electrically connected to said second region of said second leadframe.

2. The package of claim 1 wherein said light emitting device is a vertical-cavity surface-emitting laser.

3. The package of claim 1 wherein said light emitting device is electrically connected to said second region of said second leadframe by a bondwire.

4. The package of claim 1 wherein at least one of said first and second elongate leads protrudes from a side surface of said structural body.

5. The package of claim 4 wherein each of said first and second elongate leads has a hole for direct wire connection.

6. The package of claim 4 wherein each of said first and second elongate leads has U-shaped end for mechanical clipping with a wire.

7. The package of claim 1 wherein said structural body further includes a back surface at a back end, said back end being the opposite end of said light output end of said structural body, said back surface being substantially planar, said back surface further being substantially perpendicular to a light emitting direction of said light emitting device.

8. The package of claim 1 wherein said structural body includes a base portion having a lower surface, said lower surface being located at an opposite end of said structural body as said light output end.

9. The package of claim 8 wherein said first and second elongate leads are exposed at a surface of said base portion, said surface being one of an upper surface, a side surface and said lower surface of said base portion.

10. The package of claim 9 wherein said base portion of said structural body is configured to be inserted into a slot of a female connector with exposed electrodes so that said first and second elongate leads exposed at said surface of said base portion are electrically connected to said exposed electrodes of said female connector when said base portion is inserted into said slot of said female connector.

11. The package of claim 8 wherein said base portion of said structural body is rectangular in shape.

12. The package of claim 8 wherein said structural body includes a cylindrical portion connected to said base portion, the axis of said cylindrical portion being substantially perpendicular to said lower surface of said base portion.

13. The package of claim 12 wherein said cylindrical portion of said structural body includes a cylindrical shell.

14. A vertical light source package comprising:

a structural body including a light output end;

a vertical-cavity surface-emitting laser (VCSEL) die positioned in said structural body such that light from said VCSEL die is emitted from said light output end of said structural body;

a first leadframe at least partially positioned in said structural body, said first leadframe including a first region and a first elongate lead that extends from said first region in a predefined direction, said VCSEL die being situated on said first region of said first leadframe; and

a second leadframe at least partially positioned in said structural body, said second leadframe including having a second region and a second elongate lead that extends from said second region in said predefined direction, said VCSEL die being electrically connected to said second region of said second leadframe.

15. The package of claim 14 wherein at least one of said first and second elongate leads protrude from a side surface of said structural body.

16. The package of claim 15 wherein each of said first and second elongate leads has a hole for direct wire connection.

17. The package of claim 15 wherein each of said first and second elongate leads has U-shaped end for mechanical clipping with a wire.

18. The package of claim 14 wherein said structural body includes a rectangular base portion having a lower surface, said lower surface being located at an opposite end of said structural body as said light output end, said back surface further being substantially perpendicular to a light emitting direction of VCSEL die.

19. The package of claim 18 wherein said first and second elongate leads are exposed at a surface of said rectangular base portion, said surface being one of an upper surface, a side surface and said lower surface of said rectangular base portion.

20. The package of claim 19 wherein said rectangular base portion of said structural body is configured to be inserted into a slot of a female connector with exposed electrodes so that said first and second elongate leads exposed at said surface of said rectangular base portion are electrically connected to said exposed electrodes of said female connector when said rectangular base portion is inserted into said slot of said female connector.