Huawei MU609 Getting To Know Manual page 6

Requirements on PCB Layout
The thickness of PCB is more than 1.0 mm (1.2 mm recommended) to reduce the

deformation caused by high temperature welding.
The minimum distance between the LGA module and the PCB edge is 1.5 mm. Other

devices must be located more than 1 mm away from the LGA module (more than 3 mm
recommended if rework is considered).
When the PCB layout is double sided, it is recommended that the LGA module be

placed on the second side for assembly.
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