IP Library Granted Patent US 8,563,331
Granted Patent B2
US 8,563,331 · App. 11/270,153 · Granted Oct 22, 2013

Process for fabricating and repairing an electronic device

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Quick Facts
Patent No.
US 8,563,331
App. No.
11/270,153
Granted
Oct 22, 2013
Kind
B2
Abstract

A process for forming an electronic device can include fabricating an electronic device having a first workpiece including a first electronic component that includes a first organic layer. The process can also include repairing the electronic device after fabrication to provide electrical connections for initial non-functional electrical elements.

Claims (54)

1. A process for forming an electronic device comprising:

fabricating an electronic device that comprises a first workpiece including a first electronic component that includes a first organic layer, wherein the first organic layer comprises an organic active layer; and

repairing the electronic device, after fabricating the electronic device, wherein repairing is reflow techniques without disassembly to provide electrical connection, wherein repairing is performed such that a temperature of the first organic layer does not exceed 200° C. further comprising forming an encapsulating layer between the first workpiece and second workpiece after repairing the electronic device.

2. The process of claim 1 , wherein fabricating the electronic device comprises:

forming a conductor over a second workpiece; and

forming a conductive member over the conductor, such that the conductive member is attached to the second workpiece before repairing the electronic device.

3. The process of claim 1 , wherein fabricating the electronic device comprises:

forming a first electrode over the first workpiece; and

forming a conductive member over the first electrode, such that the conductive member is attached to the first workpiece before repairing the electronic device.

4. The process of claim 1 , further comprising:

forming a conductive member over a second workpiece; and

reflowing the conductive member,

wherein fabricating the electronic device comprises:

forming a substrate structure over the first workpiece before reflowing the conductive member; and

placing the first workpiece near the second workpiece, such that:

the substrate structure contacts the second workpiece; or

a layer overlying the substrate structure contacts the second workpiece, wherein the layer has a substantially same composition as the first electrode.

5. The process of claim 1 , wherein fabricating the electronic device comprises attaching the first workpiece to a second workpiece with a sealing material before repairing the electronic device.

6. The process of claim 1 , wherein repairing is performed using a directional radiation source targeted at a conductive member adjacent to the first workpiece.

7. The process of claim 6 , wherein the conductive member receives pulses of radiation from the directional radiation source.

8. The process of claim 1 , wherein repairing comprises reflowing a conductive member to electrically connect a first electrode of the first electronic component and a conductor of a second workpiece to each other.

9. The process of claim 1 , wherein repairing is performed such that a temperature of the first organic layer does not exceed 160° C.

10. The process of claim 1 , wherein a conductive member lies adjacent to the first workpiece and comprises indium.

11. The process of claim 1 , wherein fabricating the electronic devices comprises:

forming at least 4,000 electronic components, including the first electronic component, over a first substrate, wherein:

the at least 4,000 electronic components;

each of the at least 4,000 electronic components comprises a corresponding first electrode;

forming at least 4,000 conductors over a second substrate;

forming at least 4,000 conductive members over the corresponding first electrodes or the at least 4,000 conductors;

placing the first substrate and second substrate near each other; and

reflowing the at least 4,000 conductive members, wherein:

a majority of the at least 4,000 conductive members electrically connect the first electrodes to the conductors; and

at least one of the at least 4,000 corresponding first electrodes and a corresponding conductor of the at least 4,000 conductors that are to be electrically connected to each other are not electrically connected during reflowing.

12. The process of claim 11 , wherein repairing comprises reflowing at least one of the at least 4,000 conductive members, such that the at least one of the corresponding first electrodes and at least one of the at least 4,000 conductors are electrically connected to each other after repairing.

13. An electronic device formed using the process of claim 12 , wherein the electronic component comprises a radiation-emitting component, a radiation-responsive component, or a combination thereof.

14. A process for forming an electronic device comprising:

fabricating a first workpiece including a first electronic component that includes a first organic active layer and a first electrode;

fabricating a second workpiece including:

a first control circuit for controlling the first electronic component;

a first conductor that is electrically connected to the first control circuit; and

a first conductive member over the first conductor, such that the first conductive member is attached to the second workpiece before repairing the electronic device;

placing the first workpiece near the second workpiece;

reflowing the first conductive member, wherein an electrical connection between the first conductor and the first electrode is not made; and

repairing the electronic device after reflowing the conductive member, wherein repairing is reflow techniques without disassembly to provide electrical connection, such that the first conductive member becomes electrically connected to the first electrode, wherein repairing is performed such that a temperature of the first organic layer does not exceed 200° C. further comprising forming an encapsulating layer between the first workpiece and second workpiece after repairing the electronic device.

15. The process of claim 14 , wherein:

fabricating the first workpiece further includes forming a second electronic component that includes a second organic active layer and a second electrode;

fabricating the second workpiece further includes:

forming a second control circuit for controlling the second electronic component;

forming a second conductor that is electrically connected to the second control circuit; and

forming a second conductive member over the second conductor, such that the second conductive member is attached to the second workpiece before repairing the electronic device;

reflowing the second conductive member, such that the second conductor is electrically connected the second electrode to the second conductor; and

repairing is performed such that the second component is not repaired.

16. The process of claim 15 , wherein repairing is reflowing the first conductive member without reflowing the second conductive member.

17. The process of claim 14 wherein reflowing and repairing are performed using different techniques.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 22, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: LG CHEM, LTD.
Reel/Frame 050150/0482 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 30, 2006
From: DUPONT DISPLAYS, INC.
To: E. I. DU PONT DE NEMOURS AND COMPANY
Reel/Frame 017690/0832 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 22, 2006
From: WANG, JIAN; YU, GANG
To: DUPONT DISPLAYS, INC.
Reel/Frame 017200/0214 →