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  <xs:element id="klic_CashEquivalentsGrossUnrealizedLoss" abstract="false" name="CashEquivalentsGrossUnrealizedLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="klic_CashandCashEquivalentsGrossUnrealizedGain" abstract="false" name="CashandCashEquivalentsGrossUnrealizedGain" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="klic_InventoryPurchaseObligationFutureMinimumPaymentsDueCurrent" abstract="false" name="InventoryPurchaseObligationFutureMinimumPaymentsDueCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="klic_AftermarketProductsandServicesAPSSegmentMember" abstract="true" name="AftermarketProductsandServicesAPSSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_CapitalEquipmentSegmentMember" abstract="true" name="CapitalEquipmentSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_InventoryPurchaseObligationFutureMinimumPaymentsDueInTwoYears" abstract="false" name="InventoryPurchaseObligationFutureMinimumPaymentsDueInTwoYears" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="klic_ChangeinContractwithCustomerLiabilityRollForward" abstract="true" name="ChangeinContractwithCustomerLiabilityRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="klic_MUFGBankLtd.SingaporeBranchMember" abstract="true" name="MUFGBankLtd.SingaporeBranchMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_StockRepurchaseProgramAuthorizedAmountAdditionalAmount" abstract="false" name="StockRepurchaseProgramAuthorizedAmountAdditionalAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="klic_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" abstract="false" name="LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="klic_UnfundedCapitalCommitmentMember" abstract="true" name="UnfundedCapitalCommitmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_AccruedExpensesAndOtherCurrentLiabilitiesMember" abstract="true" name="AccruedExpensesAndOtherCurrentLiabilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_TimeBasedRestrictedShareUnitsMember" abstract="true" name="TimeBasedRestrictedShareUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_ScheduleOfIntangibleAssetsTable" abstract="true" name="ScheduleOfIntangibleAssetsTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="klic_LeasesNumberofOptionsToExtend" abstract="false" name="LeasesNumberofOptionsToExtend" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="klic_CashCashEquivalentsRestrictedCashRestrictedCashEquivalentsandShortTermInvestmentsGrossUnrealizedGain" abstract="false" name="CashCashEquivalentsRestrictedCashRestrictedCashEquivalentsandShortTermInvestmentsGrossUnrealizedGain" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="klic_HuatianTechnologyGroupMember" abstract="true" name="HuatianTechnologyGroupMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_CommitmentsContingenciesAndConcentrationsDisclosureTextBlock" abstract="false" name="CommitmentsContingenciesAndConcentrationsDisclosureTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="klic_RelativeTotalShareholderReturnAverageStockPriceCalculationPeriod" abstract="false" name="RelativeTotalShareholderReturnAverageStockPriceCalculationPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="klic_RelativeTSRPerformanceShareUnitsMember" abstract="true" name="RelativeTSRPerformanceShareUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_CashEquivalentsAmortizedCost" abstract="false" name="CashEquivalentsAmortizedCost" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="klic_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentage" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="klic_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestingPeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestingPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="klic_CashCashEquivalentsRestrictedCashRestrictedCashEquivalentsandShortTermInvestmentsGrossUnrealizedLoss" abstract="false" name="CashCashEquivalentsRestrictedCashRestrictedCashEquivalentsandShortTermInvestmentsGrossUnrealizedLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
