Huawei MC509 Series Hardware Manual page 68

HUAWEI MC509 Series CDMA LGA Module
Hardware Guide
Figure 6-7 Reflow profile
Table 6-2 Reflow parameters
Temperature Zone
Preheat zone (40º C–
150º C)
Soak zone (150º C–
200º C)
Reflow zone (> 217º C)
Cooling zone
Issue 02 (2013-05-06)
Time
60s–120s
(t1–t2): 60s–120s
(t3–t4): 30s–90s
Cooling rate: 1º C /s ≤ Slope ≤ 4º C/s
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Mechanical Specifications
Key Parameter
Heating rate: 0.5º C/s–2º C/s
Heating rate: < 1.0º C/s
Peak reflow temperature: 230º C–
250º C
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