IP Library Granted Patent US 10,991,853
Granted Patent B2
US 10,991,853 · App. 16/061,358 · Granted Apr 27, 2021

Carrier for an optoelectronic component, method of producing a carrier for an optoelectronic component, wafer and soldering method

Inventors: Christoph Walter (Regensburg, DE); Roland Enzmann (Regensburg, DE); Markus Horn (Straubing, DE); Jan Seidenfaden (Neumarkt i.d. Oberpfalz, DE)
Assignee: OSRAM OLED GmbH
H01L33/44H01L24/00H01L33/62H01L2224/83234H01L2933/0033H01L2933/0066
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Quick Facts
Patent No.
US 10,991,853
App. No.
16/061,358
Granted
Apr 27, 2021
Kind
B2
Abstract

A carrier for an optoelectronic component includes a main body, wherein the main body includes a first electrically conductive heating layer arrangement, a first solder layer for soldering an optoelectronic component to the main body is arranged on a first side of the main body, the first electrically conductive heating layer arrangement is electrically insulated from the first solder layer and thermally connected to the first solder layer, and the first heating layer arrangement has an exposed portion on which molten solder of the first solder layer can flow to reduce an electrical resistance of the first heating layer arrangement.

Claims (44)

1. A carrier for an optoelectronic component comprising:

a main body,

wherein the main body comprises a first electrically conductive heating layer arrangement,

a first solder layer for soldering an optoelectronic component to the main body is arranged on a first side of the main body,

the first electrically conductive heating layer arrangement is electrically insulated from the first solder layer and thermally connected to the first solder layer,

the first heating layer arrangement has an exposed portion on which molten solder of the first solder layer can flow to reduce an electrical resistance of the first heating layer arrangement,

the first heating layer arrangement has a first electrical contacting portion, a second electrical contacting portion and a heating portion extending between the first solder layer and the first side, and the heating portion of the first heating layer arrangement is electrically contacted by the two electrical contacting portions of the first heating layer arrangement, and

the heating portion of the first heating layer arrangement has a two-dimensional coil structure.

2. The carrier according to claim 1 , wherein the first heating layer arrangement is electrically insulated from the first solder layer by a first electrically insulated passivation layer by virtue of the first passivation layer being arranged at least in part on the first heating layer arrangement, and the first solder layer is arranged at least indirectly on the first passivation layer.

3. The carrier according to claim 2 , wherein an electric line is formed to electrically contact the first heating layer arrangement, and the electric line extends from an upper side facing away from the first side of the main body of the first passivation layer to the first heating layer arrangement through the first passivation layer.

4. The carrier according to claim 3 , wherein the electric line is formed by the first heating layer arrangement.

5. The carrier according to claim 1 , wherein the thickness of the first electrically conductive heating layer arrangement is 15 nm to 200 nm.

6. The carrier according to claim 1 , further comprising an optoelectronic component, wherein the optoelectronic component is soldered onto the main body or soldered with the main body by the first solder layer.

7. The carrier according to claim 1 , wherein the first side of the main body is an upper side of the main body.

8. The carrier according to claim 1 , wherein the main body is configured as a submount.

9. The carrier according to claim 1 , wherein a second electrically conductive heating layer arrangement is arranged on a second side of the main body, lying opposite the first side, and the second heating arrangement is electrically insulated from a second solder layer arranged on the second side and thermally connected to the second solder layer.

10. The carrier according to claim 9 , wherein the main body is soldered onto a further carrier by the second solder layer.

11. The carrier according to claim 9 , wherein the second heating layer arrangement is electrically contacted by an electrical via extending from the first side to the second side of the main body.

12. A wafer comprising a plurality of carriers according to claim 1 .

13. A soldering method using a wafer according to claim 12 , wherein an optoelectronic component is soldered to the main body by the first solder layer by virtue of the first electrically conductive heating layer arrangement having a voltage or an electric current applied thereto such that the first electrically conductive heating layer arrangement is heated to melt the first solder layer.

14. A soldering method using a carrier according to claim 1 , wherein an optoelectronic component is soldered to the main body by the first solder layer by virtue of the first electrically conductive heating layer arrangement having a voltage or an electric current applied thereto such that the first electrically conductive heating layer arrangement is heated to melt the first solder layer.

15. The soldering method according to claim 14 , wherein molten solder of the first solder layer flows onto an exposed portion of the first heating layer arrangement to reduce an electrical resistance of the first heating layer arrangement.

16. A method of producing a carrier for an optoelectronic component comprising:

providing a main body, wherein the main body comprises a first electrically conductive heating layer arrangement, and

forming an electrical insulation, a thermal connection and a first solder layer for soldering an optoelectronic component to the main body on a first side of the main body such that the first electrically conductive heating layer arrangement is electrically insulated from the first solder layer and thermally connected to the first solder layer,

such that the first heating layer arrangement has a first electrical contacting portion, a second electrical contacting portion and a heating portion extending between the first solder layer and the first side, and the heating portion of the first heating layer arrangement is electrically contacted by the two electrical contacting portions of the first heating layer arrangement, and

such that the heating portion of the first heating layer arrangement has a two-dimensional coil structure.

17. A carrier for an optoelectronic component comprising:

a main body,

wherein the main body comprises a first electrically conductive heating layer arrangement,

a first solder layer for soldering an optoelectronic component to the main body is arranged on a first side of the main body,

the first electrically conductive heating layer arrangement is electrically insulated from the first solder layer and thermally connected to the first solder layer,

the first heating layer arrangement has an exposed portion on which molten solder of the first solder layer can flow to reduce an electrical resistance of the first heating layer arrangement,

a second electrically conductive heating layer arrangement is arranged on a second side of the main body, lying opposite the first side, and the second heating arrangement is electrically insulated from a second solder layer arranged on the second side and thermally connected to the second solder layer,

wherein the second heating layer arrangement is electrically contacted by an electrical via extending from the first side to the second side of the main body.

18. A carrier for an optoelectronic component comprising:

a main body comprising a first electrically conductive heating layer arrangement, and

a first solder layer for soldering an optoelectronic component to the main body is arranged on a first side of the main body,

wherein the first electrically conductive heating layer arrangement is electrically insulated from the first solder layer and thermally connected to the first solder layer,

the first heating layer arrangement has an exposed portion on which molten solder of the first solder layer can flow to reduce an electrical resistance of the first heating layer arrangement,

the first electrical heating layer arrangement is structured such that it has a heating portion and two electrical contacting portions and comprises a layer stack formed from a titanium layer, a platinum layer and a gold layer, and

the titanium layer is arranged on the first side of the main body as a first layer of the layer stack, the platinum layer is arranged on the titanium layer as a second layer of the layer stack, and the gold layer is arranged on the platinum layer as a third layer of the layer stack.

19. The carrier according to claim 18 , wherein a thickness of the first electrically conductive heating layer arrangement is 15 nm to 200 nm.

20. The carrier according to claim 18 , wherein the heating portion comprises the layer stack formed from the titanium layer, the platinum layer and the gold layer.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 3, 2020
From: OSRAM OPTO SEMICONDUCTORS GMBH
To: OSRAM OLED GMBH
Reel/Frame 051464/0504 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 5, 2018
From: WALTER, CHRISTOPH; ENZMANN, ROLAND; HORN, MARKUS; SEIDENFADEN, JAN
To: OSRAM OPTO SEMICONDUCTORS GMBH
Reel/Frame 046789/0584 →
Priority Claims (2)
DE 10 2015 121 711.2 · Dec 14, 2015 · national
DE 10 2016 106 734.2 · Apr 12, 2016 · national
Continuity (1)
Related Publication 20180366616A1 · Dec 20, 2018