Invention Publication
- Patent Title: METHOD FOR MANUFACTURING STRETCHABLE CIRCUIT BOARD, METAL-CLAD LAMINATED SHEET, METAL FOIL WITH RESIN, STRETCHABLE CIRCUIT BOARD, AND STRETCHABLE CIRCUIT MOUNTED ARTICLE
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Application No.: US18410564Application Date: 2024-01-11
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Publication No.: US20240147609A1Publication Date: 2024-05-02
- Inventor: Tomohiro FUKAO , Tomoaki SAWADA , Kyosuke MICHIGAMI , Qianying LI
- Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Priority: JP 21150912 2021.09.16
- Main IPC: H05K1/02
- IPC: H05K1/02 ; H05K1/18 ; H05K3/00 ; H05K3/12

Abstract:
A method for manufacturing a stretchable circuit board includes preparing a laminate in which a metal layer and a first stretchable insulating layer are in contact with each other and a peel strength between the metal layer and the first stretchable insulating layer is 0.5 N/mm or more and 3.0 N/mm or less, a second stretchable insulating layer, and a fluid; forming a via leading from a first surface, in contact with the metal layer, of the first stretchable insulating layer to a second surface opposite to the first surface; filling the fluid in the via; laminating the second stretchable insulating layer on the second surface to seal the via; and patterning the metal layer.
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