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4
Product handling & soldering
4.1 Packaging, shipping, storage and moisture preconditioning
For information pertaining to reels and tapes, Moisture Sensitivity levels (MSD), shipment and
storage information, as well as drying for preconditioning see the
4.2 ESD handling precautions
ESD prevention is based on establishing an Electrostatic Protective Area (EPA). The EPA can be a
small working station or a large manufacturing area. The main principle of an EPA is that there are no
highly charging materials in the vicinity of ESD sensitive electronics, all conductive materials are
grounded, workers are grounded, and charge build-up on ESD sensitive electronics is prevented.
International standards are used to define typical EPA and can be obtained for example from
International Electrotechnical Commission (IEC) or American National Standards Institute (ANSI).
GNSS receivers are sensitive to 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, then the first point of
contact when handling the PCB shall 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 the mounted patch antenna.
• When soldering RF connectors and patch antennas to the
receiver's RF pin, make sure to use an ESD safe soldering
iron (tip).
⚠
Failure to observe these precautions can result in severe damage to the GNSS receiver!
4.3 Safety precautions
The ZOE-M8B GNSS SiP must be supplied by an external limited power source in compliance with the
clause 2.5 of the standard IEC 60950-1. In addition to external limited power source, only Separated
or Safety Extra-Low Voltage (SELV) circuits are to be connected to the SiP including interfaces and
antennas.
☞
For more information about SELV circuits see section 2.2 in
UBX-17045131 - R04
Production Information
ZOE-M8B - System Integration Manual
ZOE-M8B Data Sheet
Safety standard IEC 60950-1
Contents
[1].
GND
Local GND
[6]
Page 34 of 42
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