18 Oct
2012
18 Oct
'12
12:02 p.m.
On 10/18/2012 01:26 PM, Chuck Guzis wrote:
For large TQFPs, I anchor the chip body to the PCB
with a dab of clear
nail polish, using the microscope for accurate positioning. Once the
polish has set, I proceed with the corner soldering. I find that I can
get extremely good registration this way. It's not fast, but it's
nearly foolproof.
I use a vacuum tweezer now; it makes short work of this.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA