Hi technetters,
Normally, when using Pb-free solder paste, we have to use N2 to prevent
oxidization in reflow. However, N2 is not cheap. For SMT factories whose
number of SMT lines are over 20lines, N2 consumption should be considered. I
want to know any of you never uses N2 in reflow for Pb-free solder paste and
any problem if we don't use N2?
Thanks so much,
Best regards,
England

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