Salvaging components is a staple of any electronic enthusiast, but
many times those interesting chips – old 8-bit microcontrollers,
memories, and CPUs found in everything from game consoles to old
computers – are rather difficult to remove from a board. [Ryan] over on
Instructables has a rather interesting method of removing old SMD packages using nothing more than a little fire and a pair of tweezers.
Obviously the best way to go about salvaging SMD components is with a
heat gun, but lacking the requisite equipment, [Ryan] managed to remove
a few SMD chips using rubbing alcohol as a heat source. In a properly
controlled environment, [Ryan] filled a small metal dish with alcohol,
set it on fire, and used the heat generated to remove a few components.
Alcohol lamps are a common bench tool in a range of repair disciplines
because the fuel is cheap and burns relatively cleanly (not leaving an
unwanted residue on the thing you’re heating).
It’s an interesting kludge, and given [Ryan]‘s display of desoldered components, we’re going to call it a success. It might also work for through-hole components, allowing for easy removal of old SRAM, ROM, and other awesome chips.
It’s an interesting kludge, and given [Ryan]‘s display of desoldered components, we’re going to call it a success. It might also work for through-hole components, allowing for easy removal of old SRAM, ROM, and other awesome chips.
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