Electrodeposited copper foil with low repulsive force

    公开(公告)号:US10081875B1

    公开(公告)日:2018-09-25

    申请号:US15626877

    申请日:2017-06-19

    摘要: The present disclosure relates to a copper foil that exhibits surprising low repulsive force characteristics; and to methods for manufacturing such copper foils. Typically, the copper foil has (a) a lightness L* value of the nodule untreated side, based on the L*a*b color system, in the range of 75 to 90 and (b) a normal tensile strength in the range of 40 kgf/mm2 to 55 kgf/mm2. The disclosure further relates to flexible printed circuit boards and electronic devices using the above-mentioned copper foils for forming conductive lines therein.