Thursday, February 3, 2011

Nitrogen for Electronics - Reflow Oven

Nitrogen gas is used with electronics manufacturing in situations where it's critical to reduce oxygen and maintain a clean, dry atmosphere.

One such example with electronics manufacturing is Reflow Soldering and Reflow Ovens.  With the increased use of surface mount technology that is replacing through-hole technology, reflow soldering of surface mount components onto printed circuit boards has become more widespread.  Reflow ovens provide a time and temperature controlled environment for effective soldering of surface mount components.

For reflow soldering, components are placed on top of the printed circuit boards on solder pads with solder paste applied.  These boards are then conveyed into the reflow oven that ultimately melts the solder particles in the solder paste, bonding the components to the pads on the circuit boards.

There are different styles of reflow soldering but convection soldering generally uses Nitrogen gas applied to base metals. The N2 gas minimizes oxidation of the surfaces to be soldered.  The chemical reactions necessary for soldering require high temperatures but metal oxidizes at a faster rate with heat applied and oxidation weakens the solder.  Therefore, Nitrogen gas is used in order to create a clean,dry, inert atmosphere that eliminates the presence of oxygen.

South-Tek Systems is an engineering and manufacturing company dedicated to Nitrogen Generator technology. Nitrogen Generators produce high purity N2 gas straight from the air we breathe using simple PSA Technology or Membrane Technology without the need for handling high pressure cylinders or relying on a gas company contract.

South-Tek Systems has installed Nitrogen Generators for electronics manufacturing, specifically for Nitrogen Use with Selective Soldering, and works with a partner company, Horizon Sales, for distribution in the electronics field.

Contact South-Tek Systems to learn more about using a Nitrogen Generator for Reflow Soldering: 888-526-6284.


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