Solder Paste Handling

April 2003
Circuits Assembly;Apr2003, Vol. 14 Issue 4, p20
Trade Publication
The article provides 10 technology tips on ways to handle solder paste. If stirring paste in a jar, be very careful to stir gently with a folding action. For those living in warm climates, do not let a fresh shipment of paste get too hot by leaving it for too long on a hot loading dock. At low humidity less than 25relative humidity (RH), solder paste dries out quickly, increasing viscosity over time. For most solder pastes, the viscosity increases by 4 to 6 0.000000or each degree of temperature decrease, so maintaining good control of the environment is important.


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