发明公开
EP1167583A2 Copper-plating liquid, plating method and plating apparatus 审中-公开
Kupferplattierungsflüssigkeit,Plattierungsverfahren und Plattierungsvorrichtung

Copper-plating liquid, plating method and plating apparatus
摘要:
There is provided a copper-plating liquid free from an alkali metal and a cyanide which, when used in plating of a substrate having an outer seed layer and fine recesses of a high aspect ratio, can reinforce the thin portion of the seed layer and can embed copper completely into the depth of the fine recesses.
The plating liquid contains divalent copper ions and a complexing agent, and an optional pH adjusting agent.
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