Nitrogen Reflow

You should be able to get assistance from http://www.airliquide.com/us/ep&a/TechPapers.htm

Caldon W. Driscoll ACI USA 610-362-1200 cdriscoll@aciusa.org

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Dear Frang.

The right O2 level are mostly determined by the products you produce (E.i. PCB surface and component solderability).

In reflow I would say the window is between 100 and 1000 ppm, depending on the issues above. Personal I choose a maximum O2 level on 500 ppm for my Ersa Hotflow 7.

You can read more about my considerations in my article on Nitrogen in reflow soldering on:

www.smtinfocus.com/technical_papers_list.html

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