Copper foil having uniform thickness and methods for manufacturing the copper foil
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United States of America Patent
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Jul 18, 2017
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N/A
app pub date -
Oct 3, 2016
filing date -
Oct 3, 2016
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Abstract
The present disclosure relates to an improved electrodeposited copper foil having uniform thickness and methods for manufacturing the electrodeposited copper foil. The electrodeposited copper foil typically has one to four interfacial lines through the cross-sectional area of the foil and a weight deviation less than 2.0%. The disclosure also relates to a process for making the electrodeposited copper foil that includes the addition of one or more insulative masks to the surface of a dimensionally stable anode. The insulative mask is cut to correspond to areas of variation in electrodeposited copper foil, such that the mask causes interferences with the electrodeposition process to even out the variation.
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