Light emitting diode device for clamping electrically conductive element

• US 8,994,046 B2
• Filed: 11/21/2008
• Issued: 03/31/2015
• Est. Priority Date: 11/23/2007
• Status: Active Grant

• Current Assignee: Everlight Electronics Company Limited
• Original Assignee: Everlight Electronics Company Limited
• Inventors: Chen, Shang-Lin, Hsu, Chih-Hung
• Primary Examiner(s): Lee, Eugene
• Assistant Examiner(s): Jiang, Fang-Xing
• Application Number:
  US12/275,431
• Publication Number:
  US 20090134423A1
• Time in Patent Office: 2,321 Days
• Field of Search: 257 98-100, 257666-676, 362/238, 362/80, 438/26
• US Class Current: 257/98
• 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 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• 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 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• 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 (LED) device comprises a first lead frame, a second lead frame, a LED die and at least one bump. The LED die is fixed on and electrically connected to the first lead frame. The second lead frame separated from the first lead frame with a distance is connected to the LED die. The bump disposed on at least one of the first lead frame and the second lead frame to identify a gripping space for allowing an electronic element inserted or gripped therein.

Claims

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

two lead frames separated with each other, each of the two lead frames having a first longitudinal lateral side and two second longitudinal lateral sides arranged oppositely and in parallel with each other, wherein the first longitudinal lateral side is disposed between the two second longitudinal lateral sides and connected with both of the two second longitudinal lateral sides;

an LED die electrically connected to both of the two lead frames;

two first bumps respectively having a rectangular shape, respectively disposed on the two second longitudinal lateral sides of one of the two lead frames, and respectively extending towards in a direction in the second longitudinal lateral side and along a tangent angle of a longitudinal axis of the lead frame;

a first gripping space defined by the first longitudinal lateral side and the two first bumps, and shaped as a rectangular recess;

two third bumps respectively having an arc shape, respectively disposed on the two second longitudinal lateral sides of the one of the two lead frames, and respectively extending towards in the direction in the second longitudinal lateral side and along the tangent angle of the longitudinal axis of the lead frame; and

a third gripping space defined by the first longitudinal lateral side and the two third bumps, and shaped as a semi-cylinder.

2. The LED device of claim 1, wherein the LED device is a LED chip or a laser diode chip.

3. The LED device of claim 1, wherein the LED die is fixed on a cup recess of one of the two lead frames.

4. The LED device of claim 3, wherein the LED die is electrically connected to the one lead frame by a first bonding wire, and is electrically connected to the other lead frame by a second bonding wire.

5. The LED device of claim 1, wherein a longitudinal axis of the rectangular recess is in parallel to a longitudinal axis of the first longitudinal lateral side of the one lead frame.

6. The LED device of claim 1, wherein a longitudinal axis of the semi-cylinder is in parallel to a longitudinal axis of the first longitudinal lateral side of the one lead frame.

7. The LED device of claim 1, wherein the two third bumps are bended inward to the third gripping space.

8. The LED device of claim 1 further comprising:

two second bumps respectively disposed on the two second longitudinal lateral sides of the other lead frame, and respectively extending towards in a direction in the second longitudinal lateral side and along a tangent angle of a longitudinal axis of the other lead frame; and

a second gripping space defined by the first longitudinal lateral side of the other lead frame and the two second bumps, for allowing an electronic element inserted or gripped therein.

9. The LED device of claim 8, wherein each of the two second bumps has a rectangular shape;

and the second gripping space is shaped as a rectangular recess, and a longitudinal axis of the rectangular recess is in parallel to a longitudinal axis of the first longitudinal lateral side of the other lead frame.

10. The LED device of claim 8, wherein each of the two second bumps has an arc shape;

and the second gripping space is shaped as a semi-cylinder, and a longitudinal axis of the semi-cylinder is in parallel to a longitudinal axis of the first longitudinal lateral side of the other lead frame.

11. A light emitting diode (LED) device comprising:

two lead frames separated with each other, each of the two lead frames having a first longitudinal lateral side and two second longitudinal lateral sides arranged oppositely and in parallel with each other, wherein the first longitudinal lateral side is disposed between the two second longitudinal lateral sides and connected with both the two second longitudinal lateral sides;

an LED die electrically connected to both of the two lead frames;

two first bumps respectively having a rectangular shape, respectively disposed on the two second longitudinal lateral sides of one of the two lead frames, and respectively extending towards in a direction in the second longitudinal lateral side and along a tangent angle of a longitudinal axis of the lead frame;

a first gripping space defined by the first longitudinal lateral side and the two first bumps, and shaped as a rectangular recess, wherein a longitudinal axis of the rectangular recess is in parallel to a longitudinal axis of the first longitudinal lateral side of the one lead frame;

two third bumps respectively having an arc shape, respectively disposed on the two second longitudinal lateral sides of the one of the two lead frames, and respectively extending towards in the direction in the second longitudinal lateral side and along the tangent angle of the longitudinal axis of the lead frame;

a third gripping space defined by the first longitudinal lateral side and the two third bumps, and shaped as a semi-cylinder, wherein a longitudinal axis of the semi-cylinder is aligned to the longitudinal axis of the rectangular recess; and

a conductive wire inserted or gripped in both of the first gripping space and the third gripping space.

12. The LED device of claim 11, wherein the LED device is a LED chip or a laser diode chip.

13. The LED device of claim 11, wherein the LED die is fixed on a cup recess of one of the two lead frames.

14. The LED device of claim 13, wherein the LED die is electrically connected to the one lead frame by a first bonding wire and is electrically connected to the other lead frame by a second bonding wire.

15. The LED device of claim 11, wherein the two third bumps are bended inward to the third gripping space to clamp the conductive wire.