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Ec-Rat

Ec-Rat

Residues RAT for benchmarking flux residues

The residues after soldering depends on the flux system used and the soldering temperature profile used. The images of acids used in solder flux show how heating will deactivate the acid parts. The acid is placed in petri-dishes and the…
admin
October 20, 2020
Ec-Rat

Flux residues can accelerate gaseous corrosion of electronics

Contamination with active organic acid, as can be found in unreacted flux residues has been reported to increase silver sulphide formation rate and amount. Environmental conditions such as humidity, temperature, contamination and gases affect the reliability and lifetime of electronic…
admin
October 20, 2020
Ec-Rat

How to clean flux residues?

Residues RAT was used to investigate a standard procedure for cleaning flux residues. Hand soldering was performed in three places on two similar PCBA´s, one of which a consequent cleaning procedure was done. Then both PCBA’s were tested with Residues…
admin
October 20, 2020
Ec-Rat

Rework – made in most reliable way?

Rework of components increases the risk of unreacted flux residues to be left on the surface of PCBAs. The main issue here is whether this rework procedure results in a reliable product. Therefore it is important 1) to know the…
admin
October 20, 2020