Optoelectronic circuit assembly and method for repairing an optoelectronic circuit assembly

Patent metadata

Field	Value
Publication number	US-11205643-B2
Application number	US-201916964339-A
Country	US
Kind code	B2
Filing date	Jan 29, 2019
Priority date	Jan 30, 2018
Publication date	Dec 21, 2021
Grant date	Dec 21, 2021

Abstract

An optoelectronic circuit assembly has a first optoelectronic component and a second optoelectronic component, wherein the optoelectronic components each comprise a housing body with an upper face and a lower face, wherein in the housing body of each optoelectronic component, a first optoelectronic semiconductor chip and a second optoelectronic semiconductor chip are embedded, wherein the optoelectronic components are mounted on a circuit board, wherein the first optoelectronic semiconductor chip of the first optoelectronic component and the first optoelectronic semiconductor chip of the second optoelectronic component are connected to a first conductor track in an electrically conductive manner, wherein the second optoelectronic semiconductor chip of the first optoelectronic component and the second optoelectronic semiconductor chip of the second optoelectronic component are connected to a second conductor track in an electrically conductive manner, wherein the first optoelectronic semiconductor chip or the second optoelectronic semiconductor chip of the first optoelectronic component is defective.

First claim

The invention claimed is:

1. An optoelectronic circuit assembly comprising:
a first optoelectronic component and a second optoelectronic component,
wherein the optoelectronic components each comprise a housing body with an upper face and a lower face,
wherein, in the housing body of each optoelectronic component, a first optoelectronic semiconductor chip and a second optoelectronic semiconductor chip are embedded,
wherein the optoelectronic components are mounted on a circuit board,
wherein the first optoelectronic semiconductor chip of the first optoelectronic component and the first optoelectronic semiconductor chip of the second optoelectronic component are connected to a first conductor track in an electrically conductive manner,
wherein the second optoelectronic semiconductor chip of the first optoelectronic component and the second optoelectronic semiconductor chip of the second optoelectronic component are connected to a second conductor track in an electrically conductive manner, and
wherein the first optoelectronic semiconductor chip or the second optoelectronic semiconductor chip of the first optoelectronic component is defective.

2. The optoelectronic circuit assembly according to claim 1 , wherein the first optoelectronic component and the second optoelectronic component comprise the same design.

3. The optoelectronic circuit assembly according to claim 1 , wherein the optoelectronic components each comprise a third optoelectronic semiconductor chip.

4. The optoelectronic circuit assembly according to claim 1 , wherein a conductor track section of the conductor track connected to the defective optoelectronic semiconductor chip is severed between the first optoelectronic component and the second optoelectronic component.

5. The optoelectronic circuit assembly according to claim 1 , wherein the defective optoelectronic semiconductor chip is electrically passivated.

6. The optoelectronic circuit assembly according to claim 1 , wherein the first optoelectronic component and the second optoelectronic component are arranged parallel to each other on the circuit board.

7. The optoelectronic circuit assembly according to claim 1 , wherein the optoelectronic semiconductor chips of the first optoelectronic component are arranged in a row in the housing body.

8. The optoelectronic circuit assembly according to claim 1 , wherein the optoelectronic semiconductor chips of the first optoelectronic component are arranged below one another and alternately staggered next to one another in the housing body.

9. The optoelectronic circuit assembly according to claim 1 , wherein a transparent conductive layer is arranged on the upper face of the housing body of the first optoelectronic component.

10. The optoelectronic circuit assembly according to claim 1 , wherein a contact element is arranged in the housing body of the first optoelectronic component and provides a conductive connection between the upper face and the lower face of the housing body, and wherein the contact element is connected to a further conductor track in an electrically conductive manner.

11. The optoelectronic circuit assembly according to claim 10 , wherein the contact element is arranged in a row with the optoelectronic semiconductor chips in the housing body of the first optoelectronic component.

12. A method for repairing an optoelectronic circuit assembly, the method compriing:
embedding a first optoelectronic semiconductor chip and a second optoelectronic semiconductor chip into a first housing body, a first optoelectronic component comprising the first housing body,
wherein the first optoelectronic component is arranged on a circuit board, the first optoelectronic semiconductor chip of the first optoelectronic component is connected to a first conductor track in an electrically conductive manner and the second optoelectronic semiconductor chip of the first optoelectronic component is connected to a second conductor track in an electrically conductive manner, and
wherein the first optoelectronic semiconductor chip or the second optoelectronic semiconductor chip of the first optoelectronic component is defective; and
embedding a first optoelectronic semiconductor chip and a second optoelectronic semiconductor chip into a second housing body, a second optoelectronic component comprising the second housing body,
wherein the second optoelectronic component is mounted on the circuit board such that the first optoelectronic semiconductor chip of the second optoelectronic component is connected to the first conductor track in an electrically conductive manner and the second optoelectronic semiconductor chip of the second optoelectronic component is connected to the second conductor track in an electrically conductive manner, and wherein the first optoelectronic component remains on the circuit board.

13. The method according to claim 12 , wherein a conductor track section of the conductor track, arranged between the first optoelectronic component and the second optoelectronic component and to which the defective optoelectronic semiconductor chip is connected, is severed.

14. The method according to claim 12 , wherein the defective optoelectronic semiconductor chip is rendered electrically non-conducting by laser radiation.

Assignees

• Osram Oled Gmbh

Inventors

• Behringer Martin

Classifications

• H10W70/614

  the multiple chips being integrally enclosed · CPC title

• H10W90/00 Primary

  Package configurations · CPC title

• G09G2330/08

  Fault-tolerant or redundant circuits, or circuits in which repair of defects is prepared · CPC title

• G09G3/32 Primary

  semiconductive, e.g. using light-emitting diodes [LED] · CPC title

• H01L23/5389

  Electricity · mapped topic