Data Sheet

ZOE-M8 - Data Sheet
UBX-16008094 - R07 Production Information Product handling
Page 25 of 29
7.2 Shipment, storage and handling
The absolute maximum rating of the storage temperature specified in the section 3.1 applies to the storage of the
SiP both before and after soldering. Required storage conditions for SiPs in reeled tapes and for naked SiPs before
soldering, other important information regarding shipment, storage and handling are described in the u-blox
Package Information Guide [3].
7.3 Moisture sensitivity levels
The Moisture Sensitivity Level (MSL) relates to the packaging and handling precautions required. ZOE-M8 SiPs are
rated at MSL level 3.
For MSL standards, see IPC/JEDEC J-STD-020, which can be downloaded from www.jedec.org.
For more information regarding MSL, see the u-blox Package Information Guide [3].
7.4 Reflow soldering
Reflow profiles are to be selected according u-blox recommendations (see the ZOE-M8 Hardware Integration
Manual [1] for additional information).
7.5 ESD handling precautions
ZOE-M8 positioning SiPs contain highly sensitive electronic circuitry and are Electrostatic Sensitive
Devices (ESD). Observe precautions for handling! Failure to observe these precautions can result
in severe damage to the GNSS receiver!
GNSS receivers are Electrostatic Sensitive Devices (ESD) and require special precautions when handling. Particular
care must be exercised when handling patch antennas, due to the risk of electrostatic charges. In addition to
standard ESD safety practices, the following measures should be taken into account whenever handling the
receiver:
• Unless there is a galvanic coupling between the
local GND (i.e. the work table) and the PCB
GND, the first point of contact when handling
the PCB must always be between the local GND
and PCB GND.
• Before mounting an antenna patch, connect
ground of the device
• When handling the RF pin, do not come into
contact with any charged capacitors and be
careful when contacting materials that can
develop charges (e.g. patch antenna ~10 pF,
coax cable ~50-80 pF/m, soldering iron, …)
• To prevent electrostatic discharge through the
RF input, do not touch any exposed antenna
area. If there is any risk that such exposed
antenna area is touched in non ESD protected
work area, implement proper ESD protection
measures in the design.
• When soldering RF connectors and patch
antennas to the receiver’s RF pin, make sure to
use an ESD safe soldering iron (tip).