IP Library Granted Patent US 10,923,640
Granted Patent B2
US 10,923,640 · App. 15/771,827 · Granted Feb 16, 2021

Optoelectronic component and method of producing same

Inventors: Thomas Schwarz (Regensburg, DE); Stefan Listl (Pettendorf, DE); Björn Hoxhold (Sinzing Viehhausen, DE); Frank Singer (Regenstauf, DE)
Assignee: OSRAM OLED GmbH
H01L33/62H01L24/48H01L25/0753H01L33/44H01L33/483H01L33/502H01L33/56G09F9/3026G09F9/33H01L33/54H01L2224/4809H01L2224/48091H01L2224/48139H01L2224/48227H01L2224/49113H01L2224/73265H01L2924/12041H01L2933/005H01L2933/0025H01L2933/0066H01L2933/0091
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Quick Facts
Patent No.
US 10,923,640
App. No.
15/771,827
Granted
Feb 16, 2021
Kind
B2
Abstract

An optoelectronic component includes a carrier, and a housing material arranged above a top side of a carrier, wherein a cavity is configured in the housing material, a top side of a first optoelectronic semiconductor chip is arranged in the cavity, the first optoelectronic semiconductor chip has a first electrical connection pad arranged at the top side of the first optoelectronic semiconductor chip, and electrically conductively connects by a bond wire to a first contact pad arranged at the top side of the carrier, a first section of the bond wire is arranged in the cavity and a second section of the bond wire is embedded the housing material, a covering material is arranged in the cavity and covers at least one part of the top side of the first optoelectronic semiconductor chip, and the first section of the bond wire is embedded in the covering material.

Claims (41)

1. An optoelectronic component comprising a carrier,

a first optoelectronic semiconductor chip arranged at a top side of the carrier,

a second optoelectronic semiconductor chip arranged at the top side of the carrier, and

a housing material arranged above the top side of the carrier,

wherein a cavity is configured in the housing material,

a top side of the first optoelectronic semiconductor chip is arranged in the cavity and a top side of the second optoelectronic semiconductor chip is arranged in a further cavity of the housing material, the cavity and the further cavity being separated from one another,

the first optoelectronic semiconductor chip has a first electrical connection pad arranged at the top side of the first optoelectronic semiconductor chip, and electrically conductively connects by a bond wire to a first contact pad arranged at the top side of the carrier,

a first section of the bond wire is arranged in the cavity and a second section of the bond wire is embedded in the housing material, and

the first electrical connection pad of the first optoelectronic semiconductor chip and an electrical connection pad of the second optoelectronic semiconductor chip arranged at the top side of the second optoelectronic semiconductor chip are electrically conductively connected by the bond wire.

2. The optoelectronic component according to claim 1 , wherein the cavity is defined by a wall inclined by an angle of −60° to +60° relative to a direction oriented perpendicularly to the top side of the first optoelectronic semiconductor chip.

3. The optoelectronic component according claim 1 , further comprising:

a covering material arranged in the cavity and covering at least one part of the top side of the first optoelectronic semiconductor chip, wherein

the first section of the bond wire is embedded in the covering material.

4. The optoelectronic component according to claim 1 ,

wherein an optically absorbing material is arranged above the top side of the carrier, and

the first optoelectronic semiconductor chip is at least partly embedded in the absorbing material.

5. The optoelectronic component according to claim 1 , wherein the first optoelectronic semiconductor chip has a second electrical connection pad arranged at an underside of the first optoelectronic semiconductor chip and electrically conductively connects to a second contact pad arranged at the top side of the carrier.

6. The optoelectronic component according to claim 1 , wherein the first optoelectronic semiconductor chip has second electrical connection pad arranged at the top side of the first optoelectronic semiconductor chip and electrically conductively connects by a second bond wire to a second contact pad arranged at the top side of the carrier.

7. The optoelectronic component according claim 5 ,

wherein a third optoelectronic semiconductor chip is arranged at the top side of the carrier, and an electrical connection pad of the third optoelectronic semiconductor chip electrically conductively connects to the second contact pad.

8. The optoelectronic component according to claim 6 ,

wherein a third optoelectronic semiconductor chip is arranged at the top side of the carrier, and an electrical connection pad of the third optoelectronic semiconductor chip electrically conductively connects to the second contact pad.

9. A method of producing an optoelectronic component comprising:

jointly arranging first and second optoelectronic semiconductor chips at a top side of a carrier;

producing an electrically conductive connection between a first electrical connection pad of the first optoelectronic semiconductor chip, said first electrical connection pad being arranged at a top side of the first optoelectronic semiconductor chip, and a first contact pad arranged at the top side of the carrier, by a bond wire, wherein the first electrical connection pad of the first optoelectronic semiconductor chip and an electrical connection pad arranged at a top side of the second optoelectronic semiconductor chip are electrically conductively connected by the bond wire;

arranging a covering material at the top side of the first optoelectronic semiconductor chip, wherein a first section of the bond wire is embedded in the covering material; and

subsequently arranging a housing material above the top side of the carrier, wherein the covering material is at least partly enclosed by the housing material, a second section of the bond wire is embedded in the housing material,

a third optoelectronic semiconductor chip is arranged jointly with the first optoelectronic semiconductor chip at the top side of the carrier, and

sections of the covering material physically separated from one another are arranged above the top side of the first optoelectronic semiconductor chip and above a top side of the third optoelectronic semiconductor chip.

10. The method according to claim 9 , wherein an interface forms between the covering material and the housing material, said interface being inclined by an angle of −60° to +60° relative to a direction oriented perpendicularly to the top side of the first optoelectronic semiconductor chip.

11. The method according to claim 9 ,

wherein, before arranging the covering material, an optically absorbing material is arranged above the top side of the carrier, and

the absorbing material is at least partly covered by the covering material.

12. The method according to claim 9 further comprising, after arranging the housing material, removing the covering material.

13. The method according to claim 12 , further comprising arranging a further covering material in a cavity formed by removing the covering material.

14. The method according to claim 9 ,

wherein

the covering material is arranged such that a continuous section of the covering material extends over the top side of the first optoelectronic semiconductor chip and over a top side of the third optoelectronic semiconductor chip.

15. The method according to claim 9 , further comprising arranging a further material above the covering material and/or the housing material.

16. The optoelectronic component according to claim 3 , wherein the covering material and the housing material terminate flush at a top side facing away from the carrier.

17. The method according to claim 13 , further comprising arranging a further material above the further covering material and/or the housing material.

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 Jun 20, 2018
From: SCHWARZ, THOMAS; LISTL, STEFAN; HOXHOLD, BJOERN; SINGER, FRANK
To: OSRAM OPTO SEMICONDUCTORS GMBH
Reel/Frame 046139/0695 →
Priority Claims (1)
DE 10 2015 118 433 · Oct 28, 2015 · national
Continuity (1)
Related Publication 20180358522A1 · Dec 13, 2018