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7. ESD (Electrostatic Discharge)
StaticdElectricitydordpowerdsurgedwillddamagedthedLED.d

SuggestionsdtodpreventdESDddamage:
1.d Usedadconductivedwristdbanddordanti-delectrostaticdgloveddwhendhandlingdthesedLEDs
2.d Allddevices,dequipment,danddmachinerydmustdbedproperlydgrounded
3.d Workdtables,dstoragedracks,detc.dshoulddbedproperlydgrounded
4.d UsediondblowerdtodneutralizedthedstaticdchargedwhichdmightdhavedbuiltdupdondsurfacedofdthedLED'sdplasticdlensdasd
adresultdofdfrictiondbetweendLEDsdduringdstoragedanddhandling
ESD-damageddLEDsdwilldexhibitdabnormaldcharacteristicsdsuchdasdhighdreversedleakagedcurrent,dlowdforwarddvoltage,d
ord"nodlightup"datdlowdcurrents.dTodverifydfordESDddamage,dcheckdford"lightup"danddVfdofdthedsuspectdLEDsdatdlowdcur-
rents.
ThedVfdofd"good"dLEDsdshoulddbed>2.0V@0.1mAdfordInGaNdproductdandd>1.4V@0.1mAdfordAlInGaPdproduct.

Suggesteddcheckingdlistd:

Training and Certi™cation
1.d Everyonedworkingdindadstatic-safedareadisdESD-certifed?d
2.d Trainingdrecordsdkeptdanddre-certifcationddatesdmonitored?

Static-Safe Workstation & Work Areas
1.d Static-safedworkstationdordwork-areasdhavedESDdsigns?d
2.d Alldsurfacesdanddobjectsdatdalldstatic-safedworkstationdanddwithind1dftdmeasuredlessdthand100V?
3.d Alldionizerdactivated,dpositioneddtowardsdthedunits?
4.d Eachdworkdsurfacedmatsdgroundingdisdgood?

Personnel Grounding
1.d Everydpersond(includingdvisitors)dhandlingdESDdsensitived(ESDS)ditemsdwearsdwristdstrap,dheeldstrapdordconduc-
tivedshoesdwithdconductivedfooring?
2.d Ifdconductivedfootweardused,dconductivedfooringdalsodpresentdwheredoperatordstanddordwalk?
3.d Garments,dhairsdordanythingdcloserdthand1dftdtodESDditemsdmeasuredlessdthand100V*?
4.d Everydwristdstrapdordheeldstrap/conductivedshoesdcheckedddailydanddresultdrecordeddfordalldDLs?
5.d Alldwristdstrapdordheeldstrapdcheckersdcalibrationdupdtoddate?
Note:d*50VdfordBluedLED.

Device Handling
1.d EverydESDSditemsdidentifeddbydEIA-471dlabelsdonditemdordpackaging? Through Hole LED > Application Note
2.d AlldESDSditemsdcompletelydinsidedproperlydcloseddstatic-shieldingdcontainersdwhendnotdatdstatic-safedworksta-
tion?
3.d Nodstaticdchargedgeneratorsd(e.g.dplastics)dinsidedshieldingdcontainersdwithdESDSditems?
4.d Alldfexibledconductivedandddissipativedpackagedmaterialsdinspecteddbeforedreusedordrecycles?

Others
1.d AuditdresultdreporteddtodentitydESDdcontroldcoordinator?
2.d Correctivedactiondfromdpreviousdauditsdcompleted?
3.d Aredauditdrecordsdcompletedanddondfle?

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