Sensor package and method for attaching sensor package

Patent metadata

Field	Value
Publication number	US-12158362-B2
Application number	US-202017760906-A
Country	US
Kind code	B2
Filing date	Sep 16, 2020
Priority date	Sep 17, 2019
Publication date	Dec 3, 2024
Grant date	Dec 3, 2024

Abstract

The present invention relates to a sensor package to be attached to an object, and the sensor package includes: a first substrate; an FBG sensor; a resin portion and a first pressure-sensitive adhesive layer positioned on the first substrate; and an adhesive layer positioned on a surface of the resin portion on a side opposite to the first substrate, in which the FBG sensor is held by the resin portion.

First claim

The invention claimed is:

1. A sensor package to be attached to an object, the sensor package comprising:
a first substrate;
a Fiber Bragg Grating (FBG) sensor;
a resin portion and a first pressure-sensitive adhesive layer positioned on the first substrate; and
an adhesive layer positioned on a surface of the resin portion on a side opposite to the first substrate, wherein
the FBG sensor is held by the resin portion,
the first pressure-sensitive adhesive layer has an opening portion that penetrates in a thickness direction, and
the resin portion holds the FBG sensor so as to fill a gap between the FBG sensor disposed in the opening portion and the opening portion.

2. The sensor package according to claim 1 , wherein the adhesive layer is cured at room temperature.

3. The sensor package according to claim 1 , wherein the adhesive layer is cured by a curing agent.

4. The sensor package according to claim 1 , wherein at least a part of an entire periphery of the resin portion holding the FBG sensor excluding a surface on the adhesive layer side is covered with the first pressure-sensitive adhesive layer.

5. The sensor package according to claim 1 , wherein surfaces of the first pressure-sensitive adhesive layer and the adhesive layer on a side to be attached to the object are protected by a first release liner.

6. The sensor package according to claim 1 , wherein the first substrate is transparent or translucent.

7. The sensor package according to claim 1 , further comprising:
a second pressure-sensitive adhesive layer and a second substrate in this order on a surface of the first substrate on a side opposite to a surface on the first pressure-sensitive adhesive layer side.

8. The sensor package according to claim 7 , wherein the second substrate is a weather resistant substrate.

9. The sensor package according to claim 7 , further comprising:
a release liner in a part between the first substrate and the second pressure-sensitive adhesive layer, wherein
the release liner includes an extension portion that extends beyond the second pressure-sensitive adhesive layer and is exposed in a surface spreading direction of the release liner.

10. A method for attaching the sensor package according to claim 1 , wherein
the adhesive layer in the sensor package is cured by a curing agent, the method for attaching the sensor package comprising:
a step of applying the curing agent to at least one of the adhesive layer and the object; and
a step of attaching the sensor package to the object via the adhesive layer.

11. A method for attaching the sensor package according to claim 1 , wherein
the adhesive layer in the sensor package is cured by a curing agent, the method for attaching the sensor package comprising:
a step of applying the curing agent to the adhesive layer;
a step of applying the curing agent to the object; and
a step of attaching the sensor package to the object so that the curing agent applied to the adhesive layer and the curing agent applied to the object are in contact with each other.

12. A method for attaching the sensor package according to claim 1 in which the sensor package is attached to the object, wherein
in the sensor package, surfaces of the first pressure-sensitive adhesive layer and the adhesive layer on a side to be attached to the object are protected by a first release liner,
the sensor package includes the first substrate, a second pressure-sensitive adhesive layer and a second substrate in this order on a surface of the first pressure-sensitive adhesive layer on a side opposite to a surface on the side to be attached to the object, and
the sensor package includes a second release liner in a part between the first substrate and the second pressure-sensitive adhesive layer, and the second release liner includes an extension portion that extends beyond the second pressure-sensitive adhesive layer and is exposed in a surface spreading direction of the second release liner, the method for attaching the sensor package comprising:
a step of releasing the first release liner and applying a curing agent to the adhesive layer;
a step of attaching a release surface from which the first release liner of the sensor package is released to the object; and
a step of releasing the second release liner and attaching a release surface of the second pressure-sensitive adhesive layer, from which the second release liner is released, to the first substrate.

13. A set comprising:
the sensor package according to claim 1 and a curing agent.

14. A sensor package to be attached to an object, the sensor package comprising:
a first substrate;
a Fiber Bragg Grating (FBG) sensor;
a resin portion and a first pressure-sensitive adhesive layer positioned on the first substrate; and
an adhesive layer positioned on a surface of the resin portion on a side opposite to the first substrate, wherein
the FBG sensor is held by the resin portion, and
surfaces of the first pressure-sensitive adhesive layer and the adhesive layer on a side to be attached to the object are protected by a first release liner.

15. The sensor package according to claim 14 , wherein the adhesive layer is cured at room temperature.

16. The sensor package according to claim 14 , wherein the adhesive layer is cured by a curing agent.

17. The sensor package according to claim 14 , wherein at least a part of an entire periphery of the resin portion holding the FBG sensor excluding a surface on the adhesive layer side is covered with the first pressure-sensitive adhesive layer.

18. A sensor package to be attached to an object, the sensor package comprising:
a first substrate;
a Fiber Bragg Grating (FBG) sensor;
a resin portion and a first pressure-sensitive adhesive layer positioned on the first substrate; and
an adhesive layer positioned on a surface of the resin portion on a side opposite to the first substrate, wherein
the FBG sensor is held by the resin portion, and
the first substrate is transparent or translucent.

19. The sensor package according to claim 18 , further comprising:
a second pressure-sensitive adhesive layer and a second substrate in this order on a surface of the first substrate on a side opposite to a surface on the first pressure-sensitive adhesive layer side.

20. The sensor package according to claim 19 , further comprising:
a release liner in a part between the first substrate and the second pressure-sensitive adhesive layer, wherein
the release liner includes an extension portion that extends beyond the second pressure-sensitive adhesive layer and is exposed in a surface spreading direction of the release liner.

Assignees

• Nitto Denko Corp
• Ihi Inspection And Instr Co Ltd

Inventors

• Tanaka Akiko
• Ishiguro Shigeki
• Kira Yoshiko
• Fukumoto Shintaro
• IMAGAWA Shun
• Nishido Takayuki

Classifications

• C09J5/06

  involving heating of the applied adhesive · CPC title

• C09J7/38

  Pressure-sensitive adhesives [PSA] · CPC title

• G01D5/3537

  Optical fibre sensor using a particular arrangement of the optical fibre itself · CPC title

• G01D5/35316 Primary

  using a Bragg gratings · CPC title

• G01D21/02

  Measuring two or more variables by means not covered by a single other subclass · CPC title