IP Library Granted Patent US 7,164,159
Granted Patent B2
US 7,164,159 · App. 10/834,175 · Granted Jan 16, 2007

LED package

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Quick Facts
Patent No.
US 7,164,159
App. No.
10/834,175
Granted
Jan 16, 2007
Kind
B2
Abstract

An LED package includes a substrate, internal electrodes provided in an even (2 n ) number and formed on an upper surface of the substrate, external electrodes provided in the even (2 n ) number, formed on at least a part of surfaces of the substrate other than the upper surface of the substrate, and electrically connected to the corresponding internal electrodes, and LEDs provided in the even (2 n ) number, located on the upper surface of the substrate, and provided with an anode and a cathode. The anodes and cathodes of the LEDs are electrically connected to the internal electrodes such that the anode of each of the LEDs is connected to the anode of a neighboring one of the LEDs and the cathode of each of the LEDs is connected to the cathode of another neighboring one of the LEDs.

Claims (24)

1. An LED package comprising:

a substrate;

internal electrodes provided in an even (2n) number and formed on an upper surface of the substrate;

external electrodes provided in the even (2n) number, formed on at least a part of surfaces of the substrate other than the upper surface of the substrate, and electrically connected to the corresponding internal electrodes; and

LEDs provided in the even (2n) number, and located on the upper surface of the substrate, each said LED having an anode and a cathode;

wherein the anodes and cathodes of the LEDs are electrically connected to the internal electrodes, the anode of each of the LEDs is connected to the anode of a neighboring one of the LEDs and the cathode of each of the LEDs is connected to the cathode of another neighboring one of the LEDs.

2. The LED package as set forth in claim 1 , further comprising a dam, having a designated height, formed at an edge of the upper surface of the substrate so that the LEDs provided in the even (2n) number are surrounded by the dam, and sealed with epoxy.

3. The LED package as set forth in claim 2 , wherein the dam is provided with a tilted inner surface.

4. The LED package as set forth in claim 2 , wherein the dam is made of polyphthalamide.

5. The LED package as set forth in claim 2 , wherein the epoxy includes a non-YAG fluorescent substance containing Tb, Al, O, and Ce.

6. The LED package as set forth in claim 1 , wherein the anodes and cathodes of the LEDs are electrically connected to the internal electrodes by bonding wires.

7. The LED package as set forth in claim 1 , wherein the LEDs are LED flip chips.

8. An LED package comprising:

a substrate;

an even (2n) number of internal electrodes located on an upper surface of the substrate;

the even (2n) number of external electrodes located on at least one surface of the substrate other than said upper surface, said external electrodes being electrically connected to the corresponding internal electrodes; and

the even (2n) number of LEDs located on the upper surface of the substrate, each said LED having an anode and a cathode;

wherein the anodes and cathodes of the LEDs are directly electrically connected to the internal electrodes, the anode of each of the LEDs is directly electrically connected to the anode of a neighboring one of the LEDs, and the cathode of each of the LEDs is directly electrically connected to the cathode of another neighboring one of the LEDs.

9. The LED package as set forth in claim 8 , further comprising a dam having a designated height and being formed along an edge of the upper surface of the substrate, wherein the LEDs are sunounded by the dam and sealed with epoxy.

10. The LED package as set forth in claim 9 , wherein the dam has a tilted inner surface.

11. The LED package as set forth in claim 9 , wherein the dam is made of polyphthalamide.

12. The LED package as set forth in claim 9 , wherein the epoxy includes a non-YAG fluorescent substance containing Th, Al, O, and Ce.

13. The LED package as set forth in claim 8 , wherein the anodes and cathodes of the LEDs are directly electrically connected to the internal electrodes by bonding wires.

14. The LED package as set forth in claim 8 , wherein the LEDs are LED flip chips.

Assignments (3)
MERGER Recorded Aug 7, 2012
From: SAMSUNG LED CO., LTD.
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 028744/0272 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2010
From: SAMSUNG ELECTRO-MECHANICS CO., LTD.
To: SAMSUNG LED CO., LTD.
Reel/Frame 024723/0532 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 29, 2004
From: PARK, JOUNG UK; MOON, SEOUNG JU; CHOI, SEUNG HWAN
To: SAMSUNG-ELECTRO MECHANICS CO., LTD.
Reel/Frame 015275/0141 →