Method and apparatus for reflow metallic surfaces

Details Method and apparatus for reflow metallic surfaces Method and apparatus for reflow metallic surfaces

B - Operations, Transporting

23

K

B23K 1/20 (2006.01) B23K 1/012 (2006.01) B23K 35/38 (2006.01) C23G 5/00 (2006.01) H05K 3/34 (2006.01)

Patent

CA 2253889

The invention relates to a method for dry cleaning or dry fluxing metallic surfaces before, during, or after a reflow soldering operation. The metallic surfaces that are dry cleaned or dry fluxed include (1) the metallic substrate on which an at least partially metallic, electronic component is to be mounted, (2) the solder paste, and (3) the metallic portions of the electronic component. The method comprises treating the metallic surface with a gaseous treatment atmosphere comprising unstable or excited gaseous species, and is substantially free of electrically charged species.

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