US Patent No. 10,194,527

METHOD FOR MANUFACTURING STRETCHABLE CIRCUIT BOARD AND STRETCHABLE CIRCUIT BOARD


Patent No. 10,194,527
Issue Date January 29, 2019
Title Method For Manufacturing Stretchable Circuit Board And Stretchable Circuit Board
Inventorship Masayuki Iwase, Tokyo (JP)
Assignee NIPPON MEKTRON, LTD., Tokyo (JP)

Claim of US Patent No. 10,194,527

1. A stretchable circuit board comprising:a first sheet member including a first main surface having a terminal portion formed thereon;
a second sheet member having a main surface and stretchability higher than that of the first sheet member, and joined to the first sheet member;
the main surface of the second sheet member opposed to the main surface of the first sheet member includes a stretchable wiring portion which is a printed pattern including a resin binder and a conductive material, wherein the stretchable wiring portion directly contacts the terminal portion between the first sheet member and the second sheet member, and
wherein the stretchable wiring portion is a series of layers from the terminal portion to an area on the second sheet member that does not overlap with the first sheet member, and the stretchable wiring portion has a constant width when viewed from above.