发明名称 |
BADFUEHRUNGSGERAET FUER EIN BAD ZUM STROMLOSEN ABSCHEIDEN VON KUPFER |
摘要 |
A control apparatus for automatically controlling at least the concentration of copper-ions, hydroxyl-ions and formaldehyde-ions in an electroless copper plating bath and independently analyzing, displaying and replenishing the concentration of each such ions whereby a sample for each of the ions is discontinuously removed from the plating bath and diluted with a specific amount of water and, independently of one another, the copper-ion concentration is colorimetrically analyzed, displayed and replenished as needed, the hydroxyl-ion concentration is potentiometrically analyzed, displayed and replenished as needed and the formaldehyde-ion concentration is amperometrically analyzed, displayed and replenished as needed. |
申请公布号 |
DE2911073(A1) |
申请公布日期 |
1980.10.02 |
申请号 |
DE19792911073 |
申请日期 |
1979.03.21 |
申请人 |
SIEMENS AG |
发明人 |
VANHUMBEECK,JACKY,DR.RER.NAT.DR.;DE STEUR,HUBERT;HEYNEMAN,GUIDO;BANDENBOSSCHE,CHRIS,DIPL.-CHEM. |
分类号 |
C23C18/40;G01N27/26;G01N27/416;G01N31/16;(IPC1-7):C23C3/02 |
主分类号 |
C23C18/40 |
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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