Bath for electroplating bright tin or tin-lead alloys and method thereof
US5110423A · kind A · utility
14Cited by
3References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 1990 |
| Grant date | May 5, 1992 |
| Priority date | — |
| Expiry date | May 25, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D3/32
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This invention relates to alkyl and alkanol sulfonic acid plating baths and to methods for plating tin and tin-lead alloys. It also relates to low foaming wetting systems based on low to moderate foaming surfactants and soluble, non-silicon containing defoamers, and to low volatility brightener systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.