Whisker resistant tin coatings and baths and methods for making such coatings
US4749626A · kind A · utility
39Cited by
18References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 3, 1986 |
| Grant date | Jun 7, 1988 |
| Priority date | — |
| Expiry date | Jul 3, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12722
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention relates to an addition to tin coating solutions for inhibiting the growth of tin whiskers. The addition comprises a concentration of a metal salt selected from the group consisting of palladium salt, silver salt, nickel salt, iron salt, cadmium salt, platinum salt, gold salt, indium salt, ruthenium salt and cobalt salt. In a preferred embodiment, the metal salt addition is either a palladium salt such as palladium chloride or a silver salt such as silver sulfate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.