Solder powders coated with fluorine compounds, and solder pastes
US4994326A · kind A · utility
17Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1988 |
| Grant date | Feb 19, 1991 |
| Priority date | — |
| Expiry date | Oct 27, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31688
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A solder powder is coated with an agent that protects the powder from oxidation. The coating agent is substantially insoluble in a vehicle used to make solder pastes. Thus, pastes made with the coated powders also resist oxidation even when exposed to air. A method for making the coated solder powders is also disclosed and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.