SEMI G73-0997 TEST METHOD FOR PULL STRENGTH FOR WIRE

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1、SEMIG73-0997N/A©SEMI1997TESTMETHODFORPULLSTRENGTHFORWIREBONDING1PurposeThisstandarddeÞnesthepullstrengthtestmethodforwirebonding.2Scope2.1ThisstandarddeÞnesthedestructivepullstrengthtestmethodanditscriterionforevaluatingpullstrengthofwirebondsconnectingtwopoints,con-nectedbyusi

2、ngballbondingtechnique.2.2Thisstandardcanbeappliedtomeasurewireswhosediameterislessthan100microns.Figure13ReferencedDocumentsHookDiameterNOTE:Aslistedorrevised,alldocumentscitedshall5.1.5Calibrationofequipmentmustbesimpleenoughbethelatestpublicationsofadoptedstandards.sothatuse

3、rscancalibrateiteasily.Instructionsforcal-3.1MilitaryStandard1ibrationshouldbedescribedinequipmentmanual.MIL-STD-883DÑTestMethodsandProceduresfor6SamplingMicroelectronicsMeasureatleast30pointsfromatleast2devices.Fromeachsideofthedevices,selectthesamenumber4Terminologyofwiresran

4、domly.4.1hookÑLorsimilar-shapedtoolforhookingawireforpulltest.7CalibrationandStandardization7.1CalibrationMethod5Apparatus7.1.1Calibrationofequipmentshouldbedoneusing5.1PullTesterorequivalentequipmentofÞcialandtraceableweights.5.1.1Enoughstroketobreakawire.7.1.2Displaytheweight

5、andverifywhetherthe5.1.2AccuracyÑWithin±0.5%tothefullscaleofresultsarewithintheequipment'saccuracy.loadcell.7.1.3Repeatthemeasurementusingotherweightsto5.1.3PullSpeedÑConstantspeed.verifyrepeatabilityandlinearityofthecalibration.5.1.4HooksÑBetween25-100micronsindiameter.7.2Inte

6、rvalofCalibrationNOTE1:Hookmustbemadeofmaterialstrong7.2.1Calibrateatregularintervalsatleastonceayear.enoughtobreakwirewhiletestingbutnotwithasmall7.2.2Calibrationmustbeabletobedonejustbeforediametersoastocutthroughthewire.testingwhennecessaryorspeciÞcallyinstructed.1MilitarySt

7、andards,NavalPublicationsandFormCenter,5801TaborAvenue,Philadelphia,PA19120.1SEMIG73-0997©SEMI19978Procedure2,B:TheÞrstbondneck8.1Fixsamplesusingaclamperoradhesive,sothat3,C:Loopthesamplewillnotßoat,withoutapplyingexcessive4,D:Thesecondbondneckstresstothewire.5,E:Thesecondbond8

8、.2Setpullspeedto0.5mm/secwhilemeasuring.8.3Inserttheho