Aqueous electronic circuit assembly cleaner and cleaning method
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United States of America Patent
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Nov 23, 1993
Issued Date -
N/A
app pub date -
Jun 10, 1992
filing date -
Jul 17, 1991
priority date (Note) -
Expired
status (Latency Note)
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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.
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