23 Nov
2012
23 Nov
'12
3:17 p.m.
On Thu, 22 Nov
2012, Scott Quinn wrote:
My plan was to ramp it up to 400F in an oven,
soak for 5 mins, then cool
down to minimize thermal issues. Does this sound good?
Is 400 degrees anywhere
close to hot enough? from preheat
start to cool down is about 400
seconds with the high temperature
portion less than
200 seconds. See Lattice BGA Solder Reflow and Rework Recommendations
ap note.
Modst BGA part use a lower melting temp material to keep the active
device in the
comfort range (under 250C peak).
The favorite hobby/small shop tool for this is the small counter top
"Toaster Ovens" with an
external temperature control.
Allison