13
Above is lead type BGA chip reference temperature.
Lead-free temperature curve welding
41*41 BGA welding temperature setting
Preheating
Constant
Heating
Welding
1st
Welding
2nd
Reduction
Upper
heating
160
180
200
210
215
0
Constant
time
30
30
35
45
20
0
Bottom
heating
160
180
200
215
225
0
Constant
time
30
30
35
45
60
0
IR
preheating
110
120
130
140
150
0
Constant
time
30
30
35
40
70
0
Speed rate
2
2
2
2
2
0
Preheating
Constant
Heating
Welding
1st
Welding
2nd
Reduction
Upper
heating
165
190
225
245
255
240
Constant
time
30
30
35
55
25
15
Bottom
heating
165
190
225
245
255
240
Constant
time
30
30
35
55
25
15
IR
preheating
110
120
130
140
150
160
Constant
time
30
30
35
40
40
70
Speed rate
2
2
2
2
2
2