发明名称 |
A METHOD FOR CHEMICALLY STRIPPING PLATINGS INCLUDING PALLADIUM AND AT LEAST ONE OF THE METALS COPPER AND NICKEL AND A BATH INTENDED TO BE USED FOR THE METHOD |
摘要 |
Method for chemically stripping plated metals including palladium and at least one of the metals copper and nickel. The plating is submerged into a bath including 20-200 g/l nitric acid, 10-100 g/l hydrogen peroxide, another acid such as sulphuric acid or phosphoric acid which in the bath has a stable anion and which does not form a complex with the dissolved metal and suitably a hydrogen peroxide stabiliser. The temperature of the bath is between 20<o> and 50<o>C. |
申请公布号 |
DE3269785(D1) |
申请公布日期 |
1986.04.17 |
申请号 |
DE19823269785 |
申请日期 |
1982.05.06 |
申请人 |
TELEFONAKTIEBOLAGET L M ERICSSON |
发明人 |
SKOWRONEK, JERZY;PERSSON, JAN OLA |
分类号 |
C23F1/00;C23F1/44;H05K3/06 |
主分类号 |
C23F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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