IP Library › Granted Patent US 12,663,326
Granted Patent B2
US 12,663,326 · App. 18/112,043 · Granted Jun 23, 2026

Method for manufacturing force sensor

Inventors: Yoshikane Tanaami (Nagoya, JP); Miyuki Hayashi (Nagoya, JP); Yoshiaki Kanamori (Sendai, JP); Taiyu Okatani (Sendai, JP)
Assignees: SINTOKOGIO, LTD.; TOHOKU UNIVERSITY
G01L5/10B32B15/04G01L1/005
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Quick Facts
Patent No.
US 12,663,326
App. No.
18/112,043
Filed
Feb 21, 2023
Granted
Jun 23, 2026
Kind
B2
Art Unit
2855
USPC
73/865.8
Abstract

Provided is a method for manufacturing a force sensor including: preparing a first substrate which is made of a material that transmits electromagnetic waves and includes on its surface a metal array arranged in a periodic pattern and a second substrate which includes on its surface a metal layer that reflects electromagnetic waves; forming a spacer member on the surface of the first substrate; forming a first metal layer around the spacer member on the surface of the first substrate; forming a second metal layer in a region corresponding to the first metal layer on the second substrate; and fusing the first metal layer and the second metal layer together to fix the first substrate and the second substrate in a state in which the spacer member formed on the surface of the first substrate abuts the surface of the second substrate.

Claims (25)

1 . A method for manufacturing a force sensor comprising:

preparing a first substrate which is made of a material that transmits electromagnetic waves and includes on its surface a metal array arranged in a periodic pattern and a second substrate which includes on its surface a metal layer that reflects electromagnetic waves;

forming a spacer member around the metal array on the surface of the first substrate;

forming a first metal layer thinner than the spacer member around the spacer member on the surface of the first substrate;

forming a second metal layer thinner than the spacer member in a region corresponding to the first metal layer on the second substrate; and

fusing the first metal layer and the second metal layer together to fix the first substrate and the second substrate in a state in which the spacer member formed on the surface of the first substrate abuts the surface of the second substrate.

2 . The method for manufacturing a force sensor according to claim 1 , wherein the first metal layer and the second metal layer are made of the same material.

3 . The method for manufacturing a force sensor according to claim 1 , wherein the first metal layer is separated from the spacer member.

4 . A method for manufacturing a force sensor comprising:

preparing a first substrate which is made of a material that transmits electromagnetic waves and includes on its surface a metal array arranged in a periodic pattern and a second substrate which includes on its surface a metal layer that reflects electromagnetic waves;

forming a spacer member around the metal layer on the surface of the second substrate;

forming a first metal layer thinner than the spacer member around the spacer member on the surface of the second substrate;

forming a second metal layer thinner than the spacer member in a region corresponding to the first metal layer on the first substrate; and

fusing the first metal layer and the second metal layer together to fix the spacer member formed on the surface of the second substrate in a state in which it abuts the surface of the first substrate.

5 . The method for manufacturing a force sensor according to claim 4 , wherein the first metal layer and the second metal layer are made of the same material.

6 . The method for manufacturing a force sensor according to claim 4 , wherein the first metal layer is separated from the spacer member.

7 . A method for manufacturing a force sensor comprising:

preparing a first substrate which is made of a material that transmits electromagnetic waves and includes on its surface a metal array arranged in a periodic pattern and a second substrate which includes on its surface a metal layer that reflects electromagnetic waves;

forming a first spacer member around the metal array on the surface of the first substrate;

forming a first metal layer around the first spacer member on the surface of the first substrate;

forming a second spacer member in a region corresponding to the first spacer member and around the metal layer on the surface of the second substrate;

forming a second metal layer on the surface of the second substrate in a region corresponding to the first metal layer and around the second spacer member; and

fusing the first metal layer and the second metal layer together to fix the first substrate and the second substrate in a state in which the first spacer member formed on the surface of the first substrate abuts the second spacer member formed on the surface of the second substrate.

8 . The method for manufacturing a force sensor according to claim 7 , wherein the first metal layer and the second metal layer are made of the same material.

9 . The method for manufacturing a force sensor according to claim 7 , wherein the first metal layer is separated from the first spacer member and the second metal layer is separated from the second spacer member.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 21, 2023
From: TANAAMI, YOSHIKANE; HAYASHI, MIYUKI; KANAMORI, YOSHIAKI; OKATANI, TAIYU
To: SINTOKOGIO, LTD.; TOHOKU UNIVERSITY
Reel/Frame 062753/0131 →
Priority Claims (1)
JP 2022-027043 · Feb 24, 2022 · national
Continuity (1)
Related Publication 20230266188A1 · Aug 24, 2023
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