HUAWEI MU709 Series HSPA+ LGA Module
Hardware Guide
Mechanical Specifications
Issue 09 (2017-12-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
73
Figure 6-8
Reflow profile
240
300
180
217
165
120
60
0
s
°C
60s~100s
45s~80s
235°C<Tmax<245°C
Table 6-2
Reflow parameters
Temperature Zone
Time
Key Parameter
Preheat zone
(40°C
–165°C)
-
Heating rate: 0.5°C/s
–2°C/s
Soak zone
(165°C
–217°C)
(t1
–t2): 60s–100s
-
Reflow zone (> 217°C) (t3
–t4): 45s–80s
Peak reflow temperature:
235°C
–245°C
Cooling zone
Cooling rate: 2
°C/s ≤ Slope ≤ 5°C/s