Substrate lamination system and method

• US 8,936,057 B2
• Filed: 01/18/2008
• Issued: 01/20/2015
• Est. Priority Date: 08/30/2005
• Status: Active Grant

• Current Assignee: Rockwell Collins, Inc. (Rtx Corporation)
• Original Assignee: Rockwell Collins, Inc. (Rtx Corporation)
• Inventors: Sampica, James D., Nemeth, Paul R., Barnidge, Tracy J., Marzen, Vincent P.
• Primary Examiner(s): Aftergut, Jeff
• Assistant Examiner(s): Rivera, Joshel
• Application Number:
  US12/009,482
• Publication Number:
  US 20090120585A1
• Time in Patent Office: 2,559 Days
• Field of Search: 156/104, 156/106, 156/285, 156/286, 156/382
• US Class Current: 156/382
• CPC Class Codes: B32B 2457/202 LCD, i.e. liquid crystal displays
• CPC Class Codes: B32B 37/003 to avoid air inclusion
• CPC Class Codes: B32B 37/0046 characterised by constructional aspects of the apparatus
• CPC Class Codes: B32B 37/10 characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
• CPC Class Codes: B32B 37/1009 using vacuum and fluid pressure
• CPC Class Codes: B32B 38/1841 during laying up

Abstract

The present disclosure is directed to a substrate lamination system and method.

A substrate lamination apparatus may comprise: (a) a vacuum chamber; (b) a flexible membrane; and (c) a substrate support.

A system for laminating substrates may comprise: (a) a vacuum chamber; (b) a flexible membrane; (c) a substrate support; (d) a vacuum pump; (e) a compressor; and (f) a control unit, wherein the control unit is configured to carry out the steps: (i) evacuating the vacuum chamber; and (ii) applying pressure to at least one of a first substrate and a second substrate.

Claims

1. A substrate lamination apparatus, the apparatus comprising:

a vacuum chamber comprising a base portion;

a flexible membrane, the flexible membrane partitioning the vacuum chamber into a first compartment and a second compartment;

a substrate support; and

a substrate alignment insert removable from both the base portion of the vacuum chamber and the substrate support, the substrate alignment insert including a generally planar base portion and a plurality of alignment guides extending upward from the planar base portion, the generally planar base portion and the plurality of alignment guides defining an aperture extending through the substrate alignment insert and being configured to receive at least a portion of a substrate and align the substrate within the vacuum chamber.

2. The apparatus of claim 1, further comprising:

a first port disposed in a wall portion of the first compartment; and

a second port disposed in a wall portion of the second compartment.

3. The apparatus of claim 1, wherein the flexible membrane further comprises:

a silicone rubber membrane.

4. The apparatus of claim 1, wherein the flexible membrane has an elongation capacity of at least 100%.

5. The apparatus of claim 1, wherein the flexible membrane has a tear strength of at least 30 psi.

6. The apparatus of claim 1, wherein the substrate support further comprises:

a retractable support pin.

7. The apparatus of claim 1, wherein the substrate support further comprises:

a retractable support pin;

an actuating mechanism.

8. The apparatus of claim 1, further comprising:

a substrate mask configured to cover and protect a portion of the substrate during a lamination process.

9. The apparatus of claim 8, wherein the substrate mask further comprises:

a mask aperture.

10. The apparatus of claim 1, wherein the vacuum chamber further comprises:

a lid structure.

11. The apparatus of claim 10, wherein the vacuum chamber further comprises:

a lid positioning mechanism.

12. The apparatus of claim 10, wherein the vacuum chamber further comprises:

a locking mechanism.

13. The apparatus of claim 12, wherein the locking mechanism further comprises:

an electromagnetic locking mechanism.

32. The apparatus of claim 1, wherein the substrate alignment insert comprises a plurality of upstanding wall portions configured to align the substrate.

14. A substrate lamination system, the apparatus comprising:

a vacuum chamber configured to receive a first substrate and a second substrate;

a first and second flexible membranes, the first and second flexible membranes partitioning the vacuum chamber into a first compartment and a second compartment;

a substrate support configured to support at least one of the first substrate and the second substrate in a generally vertical fashion, the substrate support being received in one of a plurality of apertures formed in a wall of the vacuum chamber;

a vacuum pump;

a compressor; and

a control unit, wherein the control unit is configured to control operation of the vacuum pump to evacuate the vacuum chamber such that the first and second membranes apply pressure to the first and second substrates;

wherein the first and second flexible membranes and the substrate support are configured such that prior to evacuation of the chamber the first and second flexible membranes are spaced apart from the first and second substrates.

15. The system of claim 14, wherein the control unit is configured to carry out the step:

disposing a pressure-sensitive adhesive layer between a substantially planar surface of a first substrate and a substantially planar surface of a second substrate.

16. The system of claim 15, wherein the disposing a pressure-sensitive adhesive layer between a substantially planar surface of a first substrate and a substantially planar surface of a second substrate further comprises:

disposing a sheet of pressure-sensitive adhesive between a substantially planar surface of a first substrate and a substantially planar surface of a second substrate.

17. The system of claim 15, wherein the disposing a pressure-sensitive adhesive layer between a substantially planar surface of a first substrate and a substantially planar surface of a second substrate further comprises:

coating at least a portion of at least one of the substantially planar surface of the first substrate and the substantially planar surface of the second substrate with a pressure-sensitive adhesive.

18. The system of claim 14, wherein the control unit is configured to carry out the step:

disposing the first substrate, pressure-sensitive adhesive layer and second substrate within a vacuum chamber.

19. The system of claim 18, wherein the disposing the first substrate, pressure-sensitive adhesive layer and second substrate within a vacuum chamber further comprises:

co-aligning a portion of the first substrate with a portion of the second substrate.

20. The system of claim 18, wherein the disposing the first substrate, pressure-sensitive adhesive layer and second substrate within a vacuum chamber further comprises:

maintaining at least a portion of at least one of the first substrate and second substrate in spatial separation from the pressure-sensitive adhesive layer.

21. The system of claim 20, wherein the maintaining at least a portion of at least one of the first substrate and second substrate in spatial separation from the pressure-sensitive adhesive layer further comprises:

supporting at least one of the first substrate and the second substrate on a support pin.

22. The system of claim 21, wherein the supporting at least one of the first substrate and the second substrate on a support pin further comprises:

supporting the at least one of the first substrate and the second substrate on a retractable support pin.

23. The system of claim 14, wherein the evacuating the vacuum chamber further comprises:

evacuating a first portion of the vacuum chamber to a first pressure.

24. The system of claim 23, wherein the evacuating the vacuum chamber further comprises:

evacuating a second portion of the vacuum chamber to a second pressure.

25. The system of claim 14, wherein the applying pressure to at least one of a first substrate and a second substrate by expanding the first and second flexible membranes by the application of pressure to a surface of the first and second flexible membranes.

26. The system of claim 25, wherein the expanding the first and second flexible membranes further comprises:

expanding flexible membranes by the application of air pressure to surfaces of the first and second flexible membranes.

27. The system of claim 25, wherein the control unit is configured to control carrying out the step:

masking a portion of at least one of the first substrate and second substrate from contact with the flexible membrane.

28. The system of claim 14, wherein the control unit is configured to control carrying out the step:

contacting at least one of the substantially planar surface of the first substrate and the substantially planar surface of the second substrate to the pressure-sensitive adhesive layer.

29. The system of claim 28, wherein the contacting at least one of the substantially planar surface of the first substrate and the substantially planar surface of the second substrate to the pressure-sensitive adhesive layer further comprising:

retracting a support pin.

30. The system of claim 14, wherein the control unit is configured to control carrying out the step:

heating at least one of the first substrate, pressure-sensitive adhesive layer, and second substrate.

31. The system of claim 14, wherein the control unit is configured to control carrying out the step:

pressurizing an environment containing the first substrate, pressure-sensitive adhesive layer, and second substrate.

33. The system of claim 14, wherein the first and second flexible membranes are provided on opposite sides of the first second substrates.