On Tue, Oct 11, 2005 at 12:00:45AM -0400, 9000 VAX wrote: > Are you considering getting BGA and TQFP chips soldered by PCB board > manufacturers? After working on the 0.5mm 144 pin EPM1270T144 with a > solder iron and an absorbing copper braid (though successfully), I > think it is not the kind of job that I can handle. I gave up the idea > of toast oven before I even started, because I don't know how to > control the temperature precisely. > > vax, 9000
I can do an LQFP176 in about 2 minutes with no wick and no bridges. It just takes a lot of practice (and flux). The 0402 capacitors are the only really bad part. They stick to the tweezers since they weigh nothing. A themocouple + max6675 + laptop + relay solves the temperature control problem with the toaster oven. -- Darrell Harmon http://dlharmon.com/dspcard Credit card size DSP/FPGA board
