In message <
crepa0+d2nq@...>
"Moore" <
prmoore@...> wrote:
> I want to switch packages on a design, I've been using a 44pin plc
> which is a reasonable challenge. I'd like to go to a 28pin tssop.
> ANybody hand soldered one of these?
I've soldered an SSOP28 which is more or less the same as a TSSOP, just with
a larger body. I aligned it with blue-tack, then nudged it a bit with a
screwdriver to get the alignment absolutely bang on. Next I soldered two
opposite corners - the alignment was still OK, so I removed the blue-tack,
put some flux on the board (and lots of it!), put a bead of solder on the tip
of the iron and ran it down the pins. Repeat that for the other side, then
check for solder bridges and unconnected pins under high magnification and a
bright light. Clean off any bridges with desolder wick, then use Isopropyl
and a stiff brush to remove the flux residue.
Later.
--
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