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        <link:definition>9955526 - Disclosure - BALANCE SHEET COMPONENTS (Components of significant balance sheet accounts) (Details)</link:definition>
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        <link:definition>9955527 - Disclosure - GOODWILL AND INTANGIBLE ASSETS (Goodwill by Reportable Segment) (Details)</link:definition>
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        <link:definition>9955528 - Disclosure - GOODWILL AND INTANGIBLE ASSETS (Net intangible assets) (Details)</link:definition>
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  <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_CashCashEquivalentsRestrictedCashRestrictedCashEquivalentsandShortTermInvestmentsGrossUnrealizedLoss" abstract="false" name="CashCashEquivalentsRestrictedCashRestrictedCashEquivalentsandShortTermInvestmentsGrossUnrealizedLoss" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="klic_CashCashEquivalentsRestrictedCashRestrictedCashEquivalentsandShortTermInvestmentsFairValueDisclosure" abstract="false" name="CashCashEquivalentsRestrictedCashRestrictedCashEquivalentsandShortTermInvestmentsFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="klic_LeasesNumberofOptionsToExtend" abstract="false" name="LeasesNumberofOptionsToExtend" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="klic_CitibankMember" abstract="true" name="CitibankMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_ProgramAuthorized13November2024Member" abstract="true" name="ProgramAuthorized13November2024Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_OmnibusIncentivePlanMember" abstract="true" name="OmnibusIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_RevenueGrowthPerformanceShareUnitsMember" abstract="true" name="RevenueGrowthPerformanceShareUnitsMember" 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_RelativeTotalShareholderReturnAverageStockPriceCalculationPeriod" abstract="false" name="RelativeTotalShareholderReturnAverageStockPriceCalculationPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="klic_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestingPeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestingPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <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_TimebasedRSUMember" abstract="true" name="TimebasedRSUMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_RelativeTSRPSUMember" abstract="true" name="RelativeTSRPSUMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_SpecialGrowthPSUMember" abstract="true" name="SpecialGrowthPSUMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_EarningsPerShareDilutedAdjustment" abstract="false" name="EarningsPerShareDilutedAdjustment" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="klic_BallBondingEquipmentSegmentMember" abstract="true" name="BallBondingEquipmentSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_AdvancedSolutionsSegmentMember" abstract="true" name="AdvancedSolutionsSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_UnallocatedCorporateExpensesMember" abstract="true" name="UnallocatedCorporateExpensesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_SellingGeneralAndAdministrativeExpenseIncludingImpairmentChargesAndGainsRelatedToCessationOfBusiness" abstract="false" name="SellingGeneralAndAdministrativeExpenseIncludingImpairmentChargesAndGainsRelatedToCessationOfBusiness" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="klic_ResearchAndDevelopmentExpenseIncludingImpairmentChargesAndGainRelatingToCessationOfBusiness" abstract="false" name="ResearchAndDevelopmentExpenseIncludingImpairmentChargesAndGainRelatingToCessationOfBusiness" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="klic_AllSegmentsExcludingAftermarketProductsAndServicesAPSMember" abstract="true" name="AllSegmentsExcludingAftermarketProductsAndServicesAPSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_AftermarketProductsAndServicesAPSSegmentPostCessationMember" abstract="true" name="AftermarketProductsAndServicesAPSSegmentPostCessationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_GeneralSemiconductorMember" abstract="true" name="GeneralSemiconductorMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_AutomotiveandIndustrialMember" abstract="true" name="AutomotiveandIndustrialMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_MemoryMember" abstract="true" name="MemoryMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_CorporateExpensesMember" abstract="true" name="CorporateExpensesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_InventoryPurchaseObligationFutureMinimumPaymentsDue" abstract="false" name="InventoryPurchaseObligationFutureMinimumPaymentsDue" 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_InventoryPurchaseObligationFutureMinimumPaymentsDueInTwoYears" abstract="false" name="InventoryPurchaseObligationFutureMinimumPaymentsDueInTwoYears" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="klic_InventoryPurchaseObligationFutureMinimumPaymentsDueInThreeYears" abstract="false" name="InventoryPurchaseObligationFutureMinimumPaymentsDueInThreeYears" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="klic_InventoryPurchaseObligationFutureMinimumPaymentsDueInFourYears" abstract="false" name="InventoryPurchaseObligationFutureMinimumPaymentsDueInFourYears" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="klic_InventoryPurchaseObligationFutureMinimumPaymentsDueInFiveYears" abstract="false" name="InventoryPurchaseObligationFutureMinimumPaymentsDueInFiveYears" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="klic_InventoryPurchaseObligationFutureMinimumPaymentsDueThereafter" abstract="false" name="InventoryPurchaseObligationFutureMinimumPaymentsDueThereafter" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="klic_TianshuiHuatianTechnologyCo.LtdMember" abstract="true" name="TianshuiHuatianTechnologyCo.LtdMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_ChangjinTechnologyShanghaiCoLtdMember" abstract="true" name="ChangjinTechnologyShanghaiCoLtdMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_HaosengIndustrialCoLtdMember" abstract="true" name="HaosengIndustrialCoLtdMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_ForehopeGroupMember" abstract="true" name="ForehopeGroupMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_UnfundedCapitalCommitmentsMember" abstract="true" name="UnfundedCapitalCommitmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="klic_PeriodOfWarrantyForManufacturingDefects" abstract="false" name="PeriodOfWarrantyForManufacturingDefects" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="klic_EAEquipmentBusinessCessationMember" abstract="true" name="EAEquipmentBusinessCessationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
