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Do I have to clean the functional layer of the Doublethin® foil after peeling-off the carrier?

April 26, 2017clean doublethin® foil Functional

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Do I have to clean the functional layer of the Doublethin® foil after peeling-off the carrier?

1 Answer

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10 Posted

Yes. We recommend the use of a mild cleaning step with common cleaning solutions (e.g. sulfuric acid solution) prior the plating process. After peeling the carrier foil, a virgin copper surface remains which immediately oxidizes. This oxidation is not necessarily uniform and can cause uneven plating images.