feesible idea for soldering ic's?

Teds post gave me an idea to solder in smt ic's using an idea similar to
welding. Would it be possible to use a low voltage high current source to
melt pre-tinned pads to the ic?

The idea might be something like sticking a conductive bar over the pins of
the ic and grounding the pads in some way. Hit a button and presto your ic
is soldered.

This shouldn't ruin the ic if there is no way the current can flow into the
ic itself? I suppose though that this method isn't that good unless you can
be sure there are no paths to ground through the ic... probably be pretty
difficult in general?

Just an idea.

Jon


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