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Reflow parameters:
Temperature Zone
Preheat zone
(40° C–150° C)
Soak zone
(150° C–200° C)
Reflow zone (>
217° C)
Cooling zone
Time
60s–120s
(t1–t2): 60s–120s
(t3–t4): 30s–90s
Cooling rate: 1°C/s ≤ Slope ≤ 4°C/s
8
Key Parameter
Heating rate:
0.5° C/s–2° C/s
Heating rate: < 1.0° C/s
Peak reflow
temperature:
230° C–250° C
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