>> P.9
FeaturesConformstointernationalIEC60068-2-66standardIEC60068-2-66,anenvironmentaltestingstandardoftheIEC(InternationalElectrotechnicalCommission)TheHighlyAcceleratedStressTestSystemEHSSeriesusesESPEC’suniquedryandwet-bulbtemperaturecontroltosatisfythetestsystemconditionsandtestoperationsspecifiedintheIEC60068-2-66standard.*ESPECwasdirectlyinvolvedindrawinguptheIEC60068-2-66standard,itstechnicalconceptsandmeasurementdatawereusedinandourdevelopment.TemperatureandhumiditycontrolforsupportofvariousteststandardsWithESPECʼsuniquewetanddrybulbtemperaturecontrolonM/MDtypechamber,temperatureandhumidityaremeasureddirectlyusingawetanddrybulbtemperaturesensor.Thisensureshighlyprecisetemperatureandhumiditycontrolovertheentiretestingprocess,frombeforetestingtothepost-testingtemperaturedecreaseorholdprocess.Afterthetemperatureandhumidityareallowedtodropforafixedperiod.Intheholdprocess,thechamberiskeptatafixedenvironmentuntilthedoorisopenedandspecimensareremoved.Thismakesitpossibleinaconstantlycontrolledtemperature/humidityenvironment,andkeepitfromdryingafterreturningtoatmosphericpressure.toplaceaspecimencomplete,istestingAPPLICABLESTANDARDSStandardNameStandardNo.ApplicationsIEC60068-2-66(JISC60068-2-66)Dampheat,steadystate(unsaturatedpressurizedvapour)Electrics/electronicsIEC60749-4HASTElectrics/electronics;SemiconductorsJEITA(EIAJ)SemiconductordevicesUnsaturatedsteampressuretestingED-4701/100A,Method103JESD22-A118BUnbiasedHASTSemiconductorsJESD22-A110EHASTSemiconductorsJESD22-A102EUnbiasedAutoclaveSemiconductorsAEC-Q100-Rev-HBiasedHAST/UnbiasedHASTAutomotivesemiconductorsJPCA-ET08UnsaturatedpressurizedvapourPrintedcircuitboardsTemperature(°C)Humidity(%rh)BiasedTestconditions110±2120±2130±2110±2130±2110±2120±2130±2110±2130±2110±2130±2121±2110±2130±2110±2120±2130±285±585±585±585±585±585±585±585±585±585±585±585±5OptionalContinuous/intermittentContinuousNoneContinuous/intermittent100±5None85±585±585±585±585±5Continuous/noneContinuousTime(h)96,192,408(0,+2)48,96,192(0,+2)24,48,96(0,+2)264(0,+2)96(0,+2)24(0,+8)48(0,+8)96(0,+8)168(0,+8)500(0,+8)264(0,+2)96(0,+2)264(0,+2)96(0,+2)24(0,+2)48(0,+2)96(0,+5)168(0,+5)240(0,+8)336(0,+8)264(0,+2)96(0,+2)96,192,408(0,+2)48,96,192(0,+2)24,48,96(0,+2)8
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