DMH and NA–based cyanide-free silver electroplating bath: a promising alternative to cyanide ones in microelectronics

To evaluate the application of mirror-bright silver deposit from 5,5-dimethylhydantoin (DMH) and nicotinic acid (NA)–based cyanide-free silver electroplating bath, the performance comparison of cyanide-free silver deposit obtained from the introduced bath with conventional cyanide-based one was carr...

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Bibliographic Details
Published in:Ionics 2021, Vol.27 (1), p.417-422
Main Authors: Liu, Anmin, Ren, Xuefeng, Wang, Chong, Zhang, Jiale, Du, Chunhui, Han, Ruolin, An, Maozhong
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Electrochemistry
Energy Storage
Optical and Electronic Materials
Original Paper
Renewable and Green Energy
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Summary:To evaluate the application of mirror-bright silver deposit from 5,5-dimethylhydantoin (DMH) and nicotinic acid (NA)–based cyanide-free silver electroplating bath, the performance comparison of cyanide-free silver deposit obtained from the introduced bath with conventional cyanide-based one was carried out. The macroscopic appearance, surface morphology, adhesive strength, and welding property of the introduced mirror-bright silver deposit were determined. Equal to the cyanide-based silver electroplating bath, mirror-bright silver deposits with excellent leveling capability, and smooth and compact morphology, as well as excellent welding property could be obtained from the studied DMH and NA–based silver electroplating bath. Thus, the investigated DMH and NA–based silver electroplating bath could be a promising alternative to the conventional cyanide ones for the applications of silver electroplating in decorative purposes and microelectronics.
ISSN:0947-7047
1862-0760
DOI:10.1007/s11581-020-03541-5