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http://dx.doi.org/10.22680/kasa2021.13.3.020

A Development of High-Durability Copper Foil Materials for Clock Spring Cable Using Grain Size Control Techniques  

Chae, Eul Yong (현대자동차)
Lee, Ho Seung (현대자동차)
Publication Information
Journal of Auto-vehicle Safety Association / v.13, no.3, 2021 , pp. 20-25 More about this Journal
Abstract
Flexural resistance evaluation of FFC (Flexible Flat Cable) was performed according to the grain size of rolled copper foil by adding 0.1wt% silver (Ag) and electrodeposited copper foil by slitting method after heat-treatment. These methods are aimed at enhancing the flexural durability of the FFC by growing the grain size of copper foil. By increasing the grain size of the copper foil and minimizing the miss-orientation at grain boundaries, the residual stress at the grain boundaries of the copper foil is reduced and the durability of the FFC is improved. Maximizing an average grain size of copper foil can be got a good solution in order to enhance the durability of the FFC or FPCB (Flexible Printed Circuit Board).
Keywords
Steering Roll Connector; Flexible Flat Cable; Copper Foil; Grain Size; Durability;
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  • Reference
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