Aqueous electronic circuit assembly cleaner and cleaning method
US5264046A · kind A · utility
19Cited by
33References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1992 |
| Grant date | Nov 23, 1993 |
| Priority date | — |
| Expiry date | Jun 10, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/122
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to environmentally safe aqueous flux removing compositions for cleaning electronic circuit assemblies, such as printed circuit or printed wiring boards, during their fabrication. Alkaline salts are utilized preferably with various adjuvants, such as an anti-corrosion agent and antifoam agent to achieve a variety of objectives, among which are the removal of solder flux, oils, waxes, and greasy substances and adhesive and other residues.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.