Pad removal device and method

Patent metadata

Field	Value
Publication number	US-10987913-B2
Application number	US-201916392809-A
Country	US
Kind code	B2
Filing date	Apr 24, 2019
Priority date	Apr 17, 2017
Publication date	Apr 27, 2021
Grant date	Apr 27, 2021

Abstract

A pad removal device includes a pad guide extending along a first direction. The pad guide includes a first affixing component configured to affix a first end of the pad guide to a pad at a first pad edge location, and a second affixing component configured to affix a second end of the pad guide to the pad at a second pad edge location opposite the first pad edge location. The pad removal device further includes an actuator attached to the pad guide, and a control assembly coupled to the actuator and configured to cause the actuator to move the first end toward the second end along the first direction. The pad guide is configured to extend in a second direction different from the first direction by an amount dependent on a distance between the first end and the second end.

First claim

What is claimed is:

1. A pad removal device comprising:
a pad guide extending along a first direction, wherein the pad guide comprises:
a first affixing component configured to affix a first end of the pad guide to a pad at a first pad edge location, and
a second affixing component configured to affix a second end of the pad guide to the pad at a second pad edge location opposite the first pad edge location, wherein a central portion of the pad guide between the first affixing component and the second affixing component is free of any affixing components;

an actuator attached to the pad guide; and
a control assembly coupled to the actuator, the control assembly configured to cause the actuator to move the first end toward the second end along the first direction,
wherein the pad guide is configured to extend in a second direction perpendicular to the first direction by an amount dependent on a distance between the first end and the second end.

2. The pad removal device of claim 1 , wherein the first affixing component extends from the first end toward the second end in the first direction.

3. The pad removal device of claim 1 , wherein the pad guide comprises a plurality of plate segments joined by hinges.

4. The pad removal device of claim 3 , wherein each endmost segment of the plurality of plate segments has a width less than a width of at least one inner segment of the plurality of plate segments.

5. The pad removal device of claim 3 , wherein a middle segment of the plurality of plate segments has a width wider than other segments of the plurality of plate segments.

6. The pad removal device of claim 3 , wherein each segment of the plurality of plate segments has a same width.

7. The pad removal device of claim 1 , wherein the pad guide comprises a single elastic plate.

8. The pad removal device of claim 1 , wherein at least one of the first affixing component or the second affixing component comprises a clipper, a hook, or a needle.

9. The pad removal device of claim 1 , wherein at least one of the first affixing component or the second affixing component comprises a clipper.

10. The pad removal device of claim 1 , wherein the actuator comprises a first telescoping arm attached to the first end of the pad guide and a second telescoping arm attached to the second end of the pad guide.

11. The pad removal device of claim 1 , wherein the actuator comprises a wire attached to the first end and the second end of the pad guide, and the control assembly comprises a winding device configured to adjust a length of the wire.

12. A pad removal device comprising:
a pad guide, wherein the pad guide comprises:
a first end configured to affix to a pad at a first pad edge location,
a second end configured to affix to the pad at a second pad edge location,
a third end configured to affix to the pad at a third pad edge location, and
a fourth end configured to affix to the pad at a fourth pad edge location; and

a plurality of actuators, wherein each actuator of the plurality of actuators is attached to a corresponding one of the first end, the second end, the third end, and the fourth end of the pad guide, a first actuator of the plurality of actuators is configured to move the first end from a first position a first distance from the second end to a second position a second distance from the second end, the first distance is greater than a width of the pad, and the second distance is less than the width of the pad.

13. The pad removal device of claim 12 , wherein the plurality of actuators comprises the first actuator attached to the first end of the pad guide, a second actuator attached to the second end of the pad guide, a third actuator attached to the third end of the pad guide, and a fourth actuator attached to the fourth end of the pad guide.

14. The pad removal device of claim 12 , wherein the second pad edge location is opposite the first pad edge location, and the fourth pad edge location is opposite the third pad edge location.

15. The pad removal device of claim 12 , further comprising:
a first affixing component configured to affix the first end of the pad guide to opposite sides of pad at the first pad edge location,
a second affixing component configured to affix the second end of the pad guide to opposite sides of the pad at the second pad edge location,
a third affixing component configured to affix the third end of the pad guide to opposite sides of the pad at the third pad edge location, and
a fourth affixing component configured to affix the fourth end of the pad guide to opposite sides of the pad at the fourth pad edge location.

16. The pad removal device of claim 12 , further comprising:
a control assembly coupled to the plurality of actuators, wherein the control assembly is configured to cause the first actuator of the plurality of actuators to move the first end of the pad guide toward the second end of the pad guide along a first direction, and cause at least one actuator of the plurality of actuators to move the third end of the pad guide toward the fourth end of the pad guide along a second direction different from the first direction.

17. The pad removal device of claim 16 , wherein the second direction is perpendicular to the first direction.

18. A pad removal device, comprising:
a pad guide, wherein the pad guide comprises:
a first end configured to affix to a pad at opposite sides of the pad at a first pad edge location,
a second end configured to affix to the pad at opposite sides of the pad at a second pad edge location,
a third end configured to affix to the pad at opposite sides of the pad at a third pad edge location, and
a fourth end configured to affix to the pad at opposite sides of the pad at a fourth pad edge location;

at least one first actuator attached to the first and second ends of the pad guide;
at least one second actuator attached to the third and fourth ends of the pad guide; and
a control assembly coupled to the at least one first actuator and the at least one second actuator, wherein the control assembly is configured to cause the at least one first actuator to move the first end of the pad guide toward the second end of the pad guide along a first direction so that a distance between the first end and the second end is less than a width of the pad, cause the at least one second actuator to move the third end of the pad guide toward the fourth end of the pad guide along a second direction, and to control a speed at which the at least one first actuator moves the first end toward the second end.

19. The pad removal device of claim 18 , wherein the second direction is perpendicular to the first direction.

20. The pad removal device of claim 18 , wherein the control assembly is configured to control a speed at which the at least one second actuator moves the third end toward the fourth end.

Assignees

• Taiwan Semiconductor Mfg Co Ltd

Inventors

• Chen Chunhung
• Wang Sheng-Chen

Classifications

• Y10T156/1978

  Delaminating bending means · CPC title

• B32B2307/538

  Roughness · CPC title

• B32B37/12

  characterised by using adhesives · CPC title

• B32B43/006 Primary

  Delaminating · CPC title

• Y10T156/1168

  Gripping and pulling work apart during delaminating · CPC title