[sdiy] [semi-OT] new sound synth IC announced

[Rainer Buchty]

> I've seen a page describing how to do it in an oven, yes an oven.

You can also do it with a DIY soldering station, see
	http://wwwbode.cs.tum.edu/~acher/bga/index.html

It's in German, though, so you might wanna use Babelfish (<yoda>a rather
amusing result, that translation is </yoda>:)

> The biggest problem is you have no way of checking that all the joints have
> been made.

You can check for correct contact by measuring the voltage through the
protection diodes of the I/O pins (assuming your chip has such diodes,
with FPGAs it's common).

See section "Tests nach dem Löten" (or "Test after soldering" in Babelfish
speech).

Rainer