Assignee

SIGMA ENG AB

SE·1 granted patent·0 citations·filing 2015–2015

Technology mixC23F1 H05K1 Y02P1

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0143US9920434B2Oxidation of copper in a copper etching solution by the use of oxygen and/or air as an oxidizing agentSIGMA ENG AB·Filed 2015·Granted Mar 20, 2018·0 cites·20 claims

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