GNSS Module Series
LC79D Hardware Design
LC79D_Hardware_Design 37 / 42
7 Storage, Manufacturing, and
Packaging
7.1. Storage
LC79D is stored in a vacuum-sealed bag. It is rated at MSL 3, and its storage restrictions are shown as
below.
1. Shelf life in the vacuum-sealed bag: 12 months at <40ºC/90%RH.
2. After the vacuum-sealed bag is opened, devices that will be subjected to reflow soldering or other high
temperature processes must be:
Mounted within 168 hours at the factory environment of ≤30ºC/60%RH.
Stored at <10%RH.
3. Devices require baking before mounting, if any circumstance below occurs.
When the ambient temperature is 23ºC±5ºC and the humidity indication card shows the
humidity is >10% before opening the vacuum-sealed bag.
Device mounting cannot be finished within 168 hours at factory conditions of ≤30ºC/60%.
4. If baking is required, devices may be baked for 8 hours at 120ºC±5ºC.
As the plastic package cannot be subjected to high temperature, it should be removed from devices before
high temperature (120ºC) baking. If shorter baking time is desired, please refer to IPC/JEDECJ-STD-033
for baking procedure.
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