u-blox ANTARIS 4 - Conformal Coating; Casting; Grounding Metal Covers; Use of any Ultrasonic Processes

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5.3.10 Conformal
GPS module and it is important to prevent them from flowing
intothemodule.
TheRFshieldsdonotprovide100%protectionforthemodulefromcoatingliquidswithlowviscosity,therefore
careisrequiredinapplying
thecoating.
 Note ConformalCoatingofthemodulewillvoidthewarranty.
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5.3.11 Casting
Ifcastingisrequired,useviscoseoranothertypeofsiliconpottant.TheOEMisstronglyadvisedtoqualifysuch
processesincombinationwiththeANTARIS
®
4GPSModulebeforeimplementingthisintheproduction.
 Note Castingwillvoidthewarranty.
5.3.12 Grounding Metal Covers
Attemptstoimprovegroundingbysolderinggroundcables,wickorotherformsofmetalstripsdirectlyontothe
EMI covers is done at the customer's own risk. The numerous ground pins should be sufficient to provide
optimumimmunitytointerferencesandnoise.
 Note u-blox makes no warranty for damages on the ANTARIS
®
4 GPS Module caused by soldering metal
cablesoranyotherformsofmetalstripsdirectlyontotheEMIcovers.
5.3.13 Use of any Ultrasonic Processes
Some components on the ANTARIS
®
4 GPS Module are sensitive to Ultrasonic Waves. Use of any Ultrasonic
Processes(cleaning,weldingetc.)maycausedamagetotheGPSReceiver.
 Note u-bloxoffersnowarrantyagainstdamagestotheANTARIS
®
4 GPSModulecausedbyanyUltrasonic
Coating
CertainapplicationsemployaconformalcoatingofthePCBusingHumiSeal
®
orotherrelatedcoatingproducts.
These materials affect the HF propertiesofthe

Processes.
GPSModules-SystemIntegrationManual(SIM)(incl.ReferenceDesign) ProductHandling
GPS.G4-MS4-05007-A1
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