Huawei ME909u-521 - Specifications of Rework

HUAWEI ME909u-521 LTE LGA Module
Hardware Guide
Mechanical Specifications
Issue 05 (2017-12-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
81
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It is recommended that a special clamp be used to pick the module when the module is
installed on the pad after applied with some solder.
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A special rework device must be used for the rework.
6.10.6 Specifications of Rework
Temperature parameter of rework: for either the removing or welding of the module,
the heating rate during the rework must be equal to or smaller than 3°C/s, and the
peak temperature between 240°C–250°C. The following parameters are
recommended during the rework.
Figure 6-10 Temperature graph of rework