Reply 180 of 613, by stamasd
I never tried soldering a QFP160, it's hard. Tips: tack the corner pins making sure it's well aligned. For the remaining pins, spread a thin layer of solder paste (mix of powdered solder and flux) over the pins/pads and work your way around the chip slowly with a fine tip. Some prefer the no-residue or the water-soluble pastes, I found however that good old rosin-based pastes give me the most consistent results (though they're a bit hard to find these days). Use extra flux liberally. For that I use liquid flux, also rosin-based.
Post a pic. The board and chip may be salvageable, but at least for the chip that won't happen without a hot air station. I have one, but don't have tips big enough for that package (biggest I've desoldered is QFP44).
I/O, I/O,
It's off to disk I go,
With a bit and a byte
And a read and a write,
I/O, I/O