Formic Acid Reduction Reflux Device [Case Study: Flux Residue]

Solve it with the Unitemp reflow device! Reducing gas works by reacting with the oxygen on the metal surface to restore it to its original state without an oxide film!

Until now, we have been using flux to remove the oxide film, but if it remains on the substrate (flux residue), it eventually corrodes and causes failures such as loss of electrical conductivity and soldered components detaching. Recently, as structures have become more complex, there has been a concern about whether the cleaning solution reaches all areas, making it impossible to eliminate the risk of flux residue. Our company supports solder reflow using a "reduction method" with formic acid and hydrogen. This allows for the removal of the oxide film without using flux, thus preventing flux residue and, of course, eliminating the need for a cleaning process. [Case Summary] ■Issue - Flux was used, but if it remains on the substrate (flux residue), it causes failures. ■Solution - Ensured solder wettability without using flux through reduction method reflow. - Choosing formic acid reduction allows for easy equipment and running costs, achieving flux-free and cleaning-free solder reflow. *For more details, please refer to the PDF document or feel free to contact us.

Reflow Equipment