发明名称 |
Method of inspecting a metal coating and a method for analytical control of a deposition electrolyte serving to deposit said metal coating |
摘要 |
For fast and secure determination of the quality of a metal coating as well as of an electrolyte for depositing a metal, in particular for electrolytic deposition of nickel such as of semi-gloss nickel and bright nickel and for analytical control of the deposition electrolyte, a method of inspecting a metal coating is provided, which involves the following method steps: a) depositing the metal coating from a deposition electrolyte onto a working electrode; b) electrolytically dissolving the metal coating through anodic polarization of the working electrode with respect to a counter electrode, which is in electrolytic contact with the working electrode; c) recording an electrical dissolution potential at the working electrode over time, said potential occurring during a dissolution of the metal coating; and d) determining a time-averaged vale of the dissolution potential. |
申请公布号 |
US8894835(B2) |
申请公布日期 |
2014.11.25 |
申请号 |
US200913127507 |
申请日期 |
2009.10.26 |
申请人 |
Atotech Deutschland GmbH |
发明人 |
Hartmann Philip;Jonat Michael;Wuensche Mathias |
分类号 |
C25D21/12;G01N27/42;C25D5/18 |
主分类号 |
C25D21/12 |
代理机构 |
Paul & Paul |
代理人 |
Paul & Paul |
主权项 |
1. A method of analytically monitoring a deposition electrolyte serving for depositing a metal coating, comprising the steps of:
a) depositing the metal coating from the deposition electrolyte onto a working electrode; b) electrolytically dissolving the metal coating through anodic polarisation of the working electrode with respect to a counter electrode, which is in electrolytic contact with the working electrode; c) recording an electrical dissolution potential at the working electrode over time, said potential occurring during dissolution of the metal coating; d) determining a time-averaged value of the dissolution potential; e) determining a difference between the time-averaged value of the dissolution potential and a reference value; and f) allocating said difference to a difference between the concentration of a component of the deposition electrolyte determining the dissolution potential and a reference concentration. |
地址 |
DE |