Technical Library | 1999-05-07 10:47:00.0
White residue remaining after cleaning circuit board assemblies can be caused by a variety of chemicals and reactions. Rosin and water-soluble fluxes, circuit board resins and epoxies, component materials and other contamination all contribute to this complex chemistry. This paper discusses many of the sources of the residues that seem to be an ever-increasing occurrence.
Article Return to Front Page No-Residue Technolo
SMTnet Express, October 7, 2021, Subscribers: 26,641, Companies: 11,452, Users: 26,882 Cleaning Before Conformal Coating Cleaning PCBs before conformal coating removes potentially harmful and unknown contaminants from the board
Heller Industries Inc. | https://hellerindustries.com/solder-balls-defects/
(a degree of contamination) Boards have marginal solderability (a degree of contamination) Components placed with too much Z-axis downforce by the pick
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