I never bothered to try yet, soldering/de-soldering anything super small (on purpose), on a phone, or motherboard. The parts that are sand grained size, and fine sand at that. Even with a microscope, that must be near impossible to get multimeter probes on, to find a value anyways, off the PCB. Big SMD parts get stuck to the iron so easy, and fry. Is there any such thing as a needle tipped soldering iron? Or does anyone just heat a needle tip somehow, and attemp this under a microscope, with manipulator arms ?
What about pre-placing the part, with glue, or some special solder paste, and using hot-air, or IR ? That might be do-able at home, if you ever really wanted to, I don't, just wondering....until it's cheap and easy.
What about putting the part in exactly in place, and hoping there's enough solder there, and then just have a metal rod sit on top of it, heat it up, and then let it sit there until it cools down and the solder freezes ?
What method do they use to solder them at the factory ?
What about pre-placing the part, with glue, or some special solder paste, and using hot-air, or IR ? That might be do-able at home, if you ever really wanted to, I don't, just wondering....until it's cheap and easy.
What about putting the part in exactly in place, and hoping there's enough solder there, and then just have a metal rod sit on top of it, heat it up, and then let it sit there until it cools down and the solder freezes ?
What method do they use to solder them at the factory ?
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