- 31 -
31*31 the temperature setting of the BGA welding
The upper is the reference temperature of the lead-free BGA
Such as set 0 when the demolition of the cooling section of BGA.
preheating insulation heating welding1 welding2 cooling
upper
165
190
220
240
245
235
time
30
30
35
40
20
15
slope
4
.
0
3
.
0
3
.
0
3
.
0
3
.
0
3
.
0
IR
210