FLEXIBLE CIRCUIT BOARD AND METHOD FOR MANUFACTURING SAME

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United States of America Patent

APP PUB NO 20120037405A1
SERIAL NO

13265042

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Abstract

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An object of the present invention is to provide a flexible circuit board that maintains high insulation reliability, exhibits high wiring adhesion, has low thermal expansion, and allows the formation of a fine circuit thereon. Specifically, the present invention provides a flexible circuit board, wherein at least a nickel plating layer is laminated on a polyimide film to form a polyimide film provided with a nickel plating layer and a wiring pattern is applied to the nickel plating layer thereof. The polyimide film has a thermal expansion coefficient of 0 to 8 ppm/° C. in the temperature range from 100 to 200° C., and the nickel plating layer has a thickness of 0.03 to 0.3 μm.

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Patent Owner(s)

Patent OwnerAddress
ARAKAWA CHEMICAL INDUSTRIES LTDOSAKA JAPAN OSAKA-SHI OSAKA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goda, Hideki Osaka, JP 25 95
Hamazawa, Akihisa Osaka, JP 3 5
Nishimura, Koji Osaka, JP 77 399

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