Thanks to Drew for sharing. Via Helentronica
Having my reflow solder oven finished, I couldn’t wait to see how far can I challenge it with complex circuit boards and tiny components. I decided to build a system with components that are tricky to solder, such as BGA and QFN packages. Not interested in designing the whole circuit on my own, I looked for an existing solution and found a good-looking one: an embedded Linux computer by Henrik Forsten.
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One of my friends commented that this is really about meeting a self-set challenge with dealing with the most difficult of surface mount soldering.