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Wide Surface Aluminum Soldering
Keywords: aluminum, solder paste, solderability
Soldering to wide surfaces of devices for thermal transfer involves making these surfaces that are made of aluminum solderable. Traditionally this has been done by expensive, multistep, electroplating processes. Superior Flux has developed a number of techniques involving solder paste soldering at low temperatures (180-210ºC), conventional electronic soldering temperatures (240-280ºC), and high temperature soldering (320-360ºC) to make wide surface aluminum soldering possible in a one-step solder reflow method. This paper describes how once the surface has been rendered solderable, conventional soldering techniques can be used to achieve thermal transfer between parts.
William Avery, Metal Joining Specialist
Superior Flux & Mfg. Co.
Jamestown, NY

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