KLAの四半期報告

false2025Q2000031920106-30http://fasb.org/us-gaap/2024#OtherAssetsNoncurrenthttp://fasb.org/us-gaap/2024#OtherAssetsNoncurrenthttp://fasb.org/us-gaap/2024#OtherLiabilitiesCurrenthttp://fasb.org/us-gaap/2024#OtherLiabilitiesCurrenthttp://fasb.org/us-gaap/2024#OtherLiabilitiesNoncurrenthttp://fasb.org/us-gaap/2024#OtherLiabilitiesNoncurrenthttp://fasb.org/us-gaap/2024#AssetImpairmentChargeshttp://fasb.org/us-gaap/2024#AssetImpairmentChargesP2YP3YP3Y33.3325.00xbrli:sharesiso4217:USDiso4217:USDxbrli:sharesxbrli:pureklac:investmentklac:extensionklac:quarterklac:installmentklac:derivative_instrumentklac:segment00003192012024-07-012024-12-3100003192012025-01-2100003192012024-12-3100003192012024-06-300000319201us-gaap:ProductMember2024-10-012024-12-310000319201us-gaap:ProductMember2023-10-012023-12-310000319201us-gaap:ProductMember2024-07-012024-12-310000319201us-gaap:ProductMember2023-07-012023-12-310000319201us-gaap:ServiceMember2024-10-012024-12-310000319201us-gaap:ServiceMember2023-10-012023-12-310000319201us-gaap:ServiceMember2024-07-012024-12-310000319201us-gaap:ServiceMember2023-07-012023-12-3100003192012024-10-012024-12-3100003192012023-10-012023-12-3100003192012023-07-012023-12-310000319201us-gaap:CommonStockMember2024-06-300000319201us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember2024-06-300000319201us-gaap:RetainedEarningsMember2024-06-300000319201us-gaap:AccumulatedOtherComprehensiveIncomeMember2024-06-300000319201us-gaap:RetainedEarningsMember2024-07-012024-09-3000003192012024-07-012024-09-300000319201us-gaap:AccumulatedOtherComprehensiveIncomeMember2024-07-012024-09-300000319201us-gaap:CommonStockMember2024-07-012024-09-300000319201us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember2024-07-012024-09-300000319201us-gaap:CommonStockMember2024-09-300000319201us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember2024-09-300000319201us-gaap:RetainedEarningsMember2024-09-300000319201us-gaap:AccumulatedOtherComprehensiveIncomeMember2024-09-3000003192012024-09-300000319201us-gaap:RetainedEarningsMember2024-10-012024-12-310000319201us-gaap:AccumulatedOtherComprehensiveIncomeMember2024-10-012024-12-310000319201us-gaap:CommonStockMember2024-10-012024-12-310000319201us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember2024-10-012024-12-310000319201us-gaap:CommonStockMember2024-12-310000319201us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember2024-12-310000319201us-gaap:RetainedEarningsMember2024-12-310000319201us-gaap:AccumulatedOtherComprehensiveIncomeMember2024-12-310000319201us-gaap:CommonStockMember2023-06-300000319201us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember2023-06-300000319201us-gaap:RetainedEarningsMember2023-06-300000319201us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-06-3000003192012023-06-300000319201us-gaap:RetainedEarningsMember2023-07-012023-09-3000003192012023-07-012023-09-300000319201us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-07-012023-09-300000319201us-gaap:CommonStockMember2023-07-012023-09-300000319201us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember2023-07-012023-09-300000319201us-gaap:CommonStockMember2023-09-300000319201us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember2023-09-300000319201us-gaap:RetainedEarningsMember2023-09-300000319201us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-09-3000003192012023-09-300000319201us-gaap:RetainedEarningsMember2023-10-012023-12-310000319201us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-10-012023-12-310000319201us-gaap:CommonStockMember2023-10-012023-12-310000319201us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember2023-10-012023-12-310000319201us-gaap:CommonStockMember2023-12-310000319201us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember2023-12-310000319201us-gaap:RetainedEarningsMember2023-12-310000319201us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-12-3100003192012023-12-310000319201srt:MinimumMember2024-12-310000319201srt:MaximumMember2024-12-310000319201

2025-01-01

srt:MinimumMember2024-12-310000319201

2025-01-01

srt:MaximumMember2024-12-310000319201

2025-01-01

2024-12-310000319201

2026-01-01

srt:MinimumMember2024-12-310000319201

2026-01-01

srt:MaximumMember2024-12-310000319201

2026-01-01

2024-12-310000319201us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2024-12-310000319201us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2024-12-310000319201us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2024-12-310000319201us-gaap:FairValueMeasurementsRecurringMemberklac:MoneyMarketBankDepositsAndOtherMember2024-12-310000319201us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberklac:MoneyMarketBankDepositsAndOtherMember2024-12-310000319201us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberklac:MoneyMarketBankDepositsAndOtherMember2024-12-310000319201us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMember2024-12-310000319201us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMember2024-12-310000319201us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMember2024-12-310000319201us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MunicipalBondsMember2024-12-310000319201us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:MunicipalBondsMember2024-12-310000319201us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:MunicipalBondsMember2024-12-310000319201us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USGovernmentAgenciesDebtSecuritiesMember2024-12-310000319201us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USGovernmentAgenciesDebtSecuritiesMember2024-12-310000319201us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USGovernmentAgenciesDebtSecuritiesMember2024-12-310000319201us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2024-12-310000319201us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2024-12-310000319201us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2024-12-310000319201us-gaap:FairValueMeasurementsRecurringMember2024-12-310000319201us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2024-12-310000319201us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2024-12-310000319201us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2024-06-300000319201us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2024-06-300000319201us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:CorporateDebtSecuritiesMember2024-06-300000319201us-gaap:FairValueMeasurementsRecurringMemberklac:MoneyMarketBankDepositsAndOtherMember2024-06-300000319201us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberklac:MoneyMarketBankDepositsAndOtherMember2024-06-300000319201us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberklac:MoneyMarketBankDepositsAndOtherMember2024-06-300000319201us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMember2024-06-300000319201us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMember2024-06-300000319201us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USTreasurySecuritiesMember2024-06-300000319201us-gaap:FairValueMeasurementsRecurringMemberus-gaap:MunicipalBondsMember2024-06-300000319201us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:MunicipalBondsMember2024-06-300000319201us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:MunicipalBondsMember2024-06-300000319201us-gaap:FairValueMeasurementsRecurringMemberus-gaap:USGovernmentAgenciesDebtSecuritiesMember2024-06-300000319201us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USGovernmentAgenciesDebtSecuritiesMember2024-06-300000319201us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:USGovernmentAgenciesDebtSecuritiesMember2024-06-300000319201us-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2024-06-300000319201us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2024-06-300000319201us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:EquitySecuritiesMember2024-06-300000319201us-gaap:FairValueMeasurementsRecurringMember2024-06-300000319201us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2024-06-300000319201us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2024-06-300000319201us-gaap:SellingGeneralAndAdministrativeExpensesMember2024-10-012024-12-310000319201us-gaap:SellingGeneralAndAdministrativeExpensesMember2023-10-012023-12-310000319201us-gaap:SellingGeneralAndAdministrativeExpensesMember2024-07-012024-12-310000319201us-gaap:SellingGeneralAndAdministrativeExpensesMember2023-07-012023-12-310000319201us-gaap:AccumulatedTranslationAdjustmentMember2024-12-310000319201us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2024-12-310000319201us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2024-12-310000319201us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2024-12-310000319201us-gaap:AccumulatedTranslationAdjustmentMember2024-06-300000319201us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2024-06-300000319201us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2024-06-300000319201us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2024-06-300000319201us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterestMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2024-10-012024-12-310000319201us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterestMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2023-10-012023-12-310000319201us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterestMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2024-07-012024-12-310000319201us-gaap:AccumulatedGainLossCashFlowHedgeIncludingNoncontrollingInterestMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2023-07-012023-12-310000319201us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2024-10-012024-12-310000319201us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2023-10-012023-12-310000319201us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2024-07-012024-12-310000319201us-gaap:AccumulatedNetInvestmentGainLossIncludingPortionAttributableToNoncontrollingInterestMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2023-07-012023-12-310000319201us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2024-10-012024-12-310000319201us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-10-012023-12-310000319201us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2024-07-012024-12-310000319201us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-07-012023-12-310000319201us-gaap:CorporateDebtSecuritiesMember2024-12-310000319201us-gaap:MunicipalBondsMember2024-12-310000319201us-gaap:USGovernmentAgenciesDebtSecuritiesMember2024-12-310000319201us-gaap:USTreasurySecuritiesMember2024-12-310000319201us-gaap:CorporateDebtSecuritiesMember2024-06-300000319201us-gaap:MunicipalBondsMember2024-06-300000319201us-gaap:USGovernmentAgenciesDebtSecuritiesMember2024-06-300000319201us-gaap:USTreasurySecuritiesMember2024-06-300000319201klac:CorporateAndGovernmentSecuritiesMember2024-12-310000319201klac:SemiconductorProcessControlMember2024-06-300000319201klac:SpecialtySemiconductorProcessMember2024-06-300000319201klac:PCBAndComponentInspectionMember2024-06-300000319201klac:SemiconductorProcessControlMember2024-07-012024-12-310000319201klac:SpecialtySemiconductorProcessMember2024-07-012024-12-310000319201klac:PCBAndComponentInspectionMember2024-07-012024-12-310000319201klac:SemiconductorProcessControlMember2024-12-310000319201klac:SpecialtySemiconductorProcessMember2024-12-310000319201klac:PCBAndComponentInspectionMember2024-12-310000319201klac:PCBAndComponentInspectionMember2024-10-012024-12-310000319201klac:SpecialtySemiconductorProcessMember2024-10-012024-12-310000319201klac:PCBAndComponentInspectionMemberus-gaap:IncomeApproachValuationTechniqueMember2024-12-310000319201klac:PCBAndComponentInspectionMemberus-gaap:MarketApproachValuationTechniqueMember2024-12-310000319201klac:PCBAndComponentInspectionMember2023-10-012023-12-310000319201klac:ExistingTechnologyMember2024-12-310000319201klac:ExistingTechnologyMember2024-06-300000319201us-gaap:CustomerRelationshipsMember2024-12-310000319201us-gaap:CustomerRelationshipsMember2024-06-300000319201klac:TradeNameTrademarkMember2024-12-310000319201klac:TradeNameTrademarkMember2024-06-300000319201us-gaap:OtherIntangibleAssetsMember2024-12-310000319201us-gaap:OtherIntangibleAssetsMember2024-06-300000319201us-gaap:InProcessResearchAndDevelopmentMember2024-12-310000319201us-gaap:InProcessResearchAndDevelopmentMember2024-06-300000319201klac:SeniorNotesDueNovember12024Memberus-gaap:SeniorNotesMember2024-12-310000319201klac:SeniorNotesDueNovember12024Memberus-gaap:SeniorNotesMember2024-06-300000319201klac:SeniorNotesDueMarch152029Memberus-gaap:SeniorNotesMember2024-12-310000319201klac:SeniorNotesDueMarch152029Memberus-gaap:SeniorNotesMember2024-06-300000319201klac:SeniorNotesDueJuly152032Memberus-gaap:SeniorNotesMember2024-12-310000319201klac:SeniorNotesDueJuly152032Memberus-gaap:SeniorNotesMember2024-06-300000319201klac:SeniorNotesDueFebruary12034Memberus-gaap:SeniorNotesMember2024-12-310000319201klac:SeniorNotesDueFebruary12034Memberus-gaap:SeniorNotesMember2024-06-300000319201klac:SeniorNotesDueNovember12034Memberus-gaap:SeniorNotesMember2024-12-310000319201klac:SeniorNotesDueNovember12034Memberus-gaap:SeniorNotesMember2024-06-300000319201klac:SeniorNotesDueMarch152049Memberus-gaap:SeniorNotesMember2024-12-310000319201klac:SeniorNotesDueMarch152049Memberus-gaap:SeniorNotesMember2024-06-300000319201klac:SeniorNotesDueMarch12050Memberus-gaap:SeniorNotesMember2024-12-310000319201klac:SeniorNotesDueMarch12050Memberus-gaap:SeniorNotesMember2024-06-300000319201klac:SeniorNotesDueJuly152052Memberus-gaap:SeniorNotesMember2024-12-310000319201klac:SeniorNotesDueJuly152052Memberus-gaap:SeniorNotesMember2024-06-300000319201klac:SeniorNotesDueJuly152062Memberus-gaap:SeniorNotesMember2024-12-310000319201klac:SeniorNotesDueJuly152062Memberus-gaap:SeniorNotesMember2024-06-300000319201klac:A2024SeniorNotesMemberus-gaap:SeniorNotesMember2024-02-290000319201klac:SeniorNotesDueFebruary12034Memberus-gaap:SeniorNotesMember2024-02-290000319201klac:SeniorNotesDueJuly152052Memberus-gaap:SeniorNotesMember2024-02-290000319201klac:A2022SeniorNotesMemberus-gaap:SeniorNotesMember2022-06-300000319201klac:A2020SeniorNotesMemberus-gaap:SeniorNotesMember2020-02-290000319201klac:A2019SeniorNotesMemberus-gaap:SeniorNotesMember2019-03-310000319201klac:A2014SeniorNotesMemberus-gaap:SeniorNotesMember2014-11-300000319201klac:A2014SeniorNotesMemberus-gaap:SeniorNotesMember2024-11-012024-11-300000319201us-gaap:SeniorNotesMember2024-07-012024-12-310000319201us-gaap:SeniorNotesMember2024-12-310000319201us-gaap:SeniorNotesMember2024-06-300000319201us-gaap:RevolvingCreditFacilityMemberus-gaap:LineOfCreditMember2024-12-310000319201us-gaap:RevolvingCreditFacilityMemberus-gaap:LineOfCreditMember2024-07-012024-12-310000319201us-gaap:RevolvingCreditFacilityMemberus-gaap:LineOfCreditMemberus-gaap:SecuredOvernightFinancingRateSofrMember2024-07-012024-12-310000319201us-gaap:RevolvingCreditFacilityMemberus-gaap:LineOfCreditMemberus-gaap:SecuredOvernightFinancingRateSofrMembersrt:MinimumMember2024-07-012024-12-310000319201us-gaap:RevolvingCreditFacilityMemberus-gaap:LineOfCreditMemberus-gaap:SecuredOvernightFinancingRateSofrMembersrt:MaximumMember2024-07-012024-12-310000319201us-gaap:RevolvingCreditFacilityMemberus-gaap:LineOfCreditMemberklac:AlternativeBaseRateMembersrt:MinimumMember2024-07-012024-12-310000319201us-gaap:RevolvingCreditFacilityMemberus-gaap:LineOfCreditMemberklac:AlternativeBaseRateMembersrt:MaximumMember2024-07-012024-12-310000319201us-gaap:RevolvingCreditFacilityMemberus-gaap:LineOfCreditMembersrt:MinimumMember2024-07-012024-12-310000319201us-gaap:RevolvingCreditFacilityMemberus-gaap:LineOfCreditMembersrt:MaximumMember2024-07-012024-12-310000319201us-gaap:RevolvingCreditFacilityMemberus-gaap:LineOfCreditMemberklac:AdjustedTermSecuredOvernightFinancingRateSOFRMember2024-07-012024-12-310000319201srt:MinimumMember2024-07-012024-12-310000319201srt:MaximumMember2024-07-012024-12-310000319201klac:TwoThousandTwentyThreePlanMember2024-12-310000319201klac:TwoThousandTwentyThreePlanMember2024-06-300000319201klac:TwoThousandTwentyThreePlanMember2024-07-012024-12-310000319201klac:RestrictedStockUnitPerformanceBasedAndServiceBasedMemberklac:SeniorManagementMember2024-07-012024-12-310000319201us-gaap:CostOfSalesMember2024-10-012024-12-310000319201us-gaap:CostOfSalesMember2023-10-012023-12-310000319201us-gaap:CostOfSalesMember2024-07-012024-12-310000319201us-gaap:CostOfSalesMember2023-07-012023-12-310000319201us-gaap:ResearchAndDevelopmentExpenseMember2024-10-012024-12-310000319201us-gaap:ResearchAndDevelopmentExpenseMember2023-10-012023-12-310000319201us-gaap:ResearchAndDevelopmentExpenseMember2024-07-012024-12-310000319201us-gaap:ResearchAndDevelopmentExpenseMember2023-07-012023-12-310000319201us-gaap:RestrictedStockUnitsRSUMemberklac:TwoThousandTwentyThreePlanMember2024-06-300000319201us-gaap:RestrictedStockUnitsRSUMemberklac:TwoThousandTwentyThreePlanMember2024-07-012024-12-310000319201us-gaap:RestrictedStockUnitsRSUMemberklac:TwoThousandTwentyThreePlanMember2024-12-310000319201klac:RestrictedStockUnitPerformanceBasedAndServiceBasedMemberklac:TwoThousandTwentyThreePlanMember2024-12-310000319201klac:RestrictedStockUnitServiceBasedMembersrt:MinimumMember2024-07-012024-12-310000319201klac:RestrictedStockUnitServiceBasedMembersrt:MaximumMember2024-07-012024-12-310000319201klac:RestrictedStockUnitMarketBasedAndServiceBasedMembersrt:MinimumMember2024-07-012024-12-310000319201klac:RestrictedStockUnitMarketBasedAndServiceBasedMembersrt:MaximumMember2024-07-012024-12-310000319201us-gaap:RestrictedStockUnitsRSUMember2024-12-310000319201us-gaap:RestrictedStockUnitsRSUMember2024-07-012024-12-310000319201srt:MinimumMemberklac:CashBasedLongTermIncentiveProgramMember2024-07-012024-12-310000319201srt:MaximumMemberklac:CashBasedLongTermIncentiveProgramMember2024-07-012024-12-310000319201us-gaap:CashFlowHedgingMemberus-gaap:DesignatedAsHedgingInstrumentMembersrt:MaximumMember2024-07-012024-12-310000319201us-gaap:TreasuryLockMember2024-12-310000319201us-gaap:TreasuryLockMember2024-10-012024-12-310000319201us-gaap:TreasuryLockMember2024-07-012024-12-310000319201us-gaap:TreasuryLockMember2023-10-012023-12-310000319201us-gaap:TreasuryLockMember2023-07-012023-12-310000319201us-gaap:TreasuryLockMemberus-gaap:CashFlowHedgingMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-12-310000319201us-gaap:TreasuryLockMemberus-gaap:CashFlowHedgingMember2024-10-012024-12-310000319201us-gaap:TreasuryLockMemberus-gaap:CashFlowHedgingMember2023-10-012023-12-310000319201us-gaap:TreasuryLockMemberus-gaap:CashFlowHedgingMember2024-07-012024-12-310000319201us-gaap:TreasuryLockMemberus-gaap:CashFlowHedgingMember2023-07-012023-12-310000319201us-gaap:ForeignExchangeContractMemberus-gaap:CashFlowHedgingMember2024-10-012024-12-310000319201us-gaap:ForeignExchangeContractMemberus-gaap:CashFlowHedgingMember2023-10-012023-12-310000319201us-gaap:ForeignExchangeContractMemberus-gaap:CashFlowHedgingMember2024-07-012024-12-310000319201us-gaap:ForeignExchangeContractMemberus-gaap:CashFlowHedgingMember2023-07-012023-12-310000319201us-gaap:ForeignExchangeContractMemberus-gaap:NetInvestmentHedgingMember2024-10-012024-12-310000319201us-gaap:ForeignExchangeContractMemberus-gaap:NetInvestmentHedgingMember2023-10-012023-12-310000319201us-gaap:ForeignExchangeContractMemberus-gaap:NetInvestmentHedgingMember2024-07-012024-12-310000319201us-gaap:ForeignExchangeContractMemberus-gaap:NetInvestmentHedgingMember2023-07-012023-12-310000319201us-gaap:SalesMemberus-gaap:TreasuryLockMember2024-10-012024-12-310000319201klac:CostOfRevenuesAndOperatingExpenseMemberus-gaap:TreasuryLockMember2024-10-012024-12-310000319201us-gaap:InterestExpenseMemberus-gaap:TreasuryLockMember2024-10-012024-12-310000319201us-gaap:OtherNonoperatingIncomeExpenseMemberus-gaap:TreasuryLockMember2024-10-012024-12-310000319201us-gaap:SalesMemberus-gaap:TreasuryLockMember2023-10-012023-12-310000319201klac:CostOfRevenuesAndOperatingExpenseMemberus-gaap:TreasuryLockMember2023-10-012023-12-310000319201us-gaap:InterestExpenseMemberus-gaap:TreasuryLockMember2023-10-012023-12-310000319201us-gaap:OtherNonoperatingIncomeExpenseMemberus-gaap:TreasuryLockMember2023-10-012023-12-310000319201us-gaap:SalesMemberus-gaap:ForeignExchangeContractMember2024-10-012024-12-310000319201klac:CostOfRevenuesAndOperatingExpenseMemberus-gaap:ForeignExchangeContractMember2024-10-012024-12-310000319201us-gaap:InterestExpenseMemberus-gaap:ForeignExchangeContractMember2024-10-012024-12-310000319201us-gaap:OtherNonoperatingIncomeExpenseMemberus-gaap:ForeignExchangeContractMember2024-10-012024-12-310000319201us-gaap:SalesMemberus-gaap:ForeignExchangeContractMember2023-10-012023-12-310000319201klac:CostOfRevenuesAndOperatingExpenseMemberus-gaap:ForeignExchangeContractMember2023-10-012023-12-310000319201us-gaap:InterestExpenseMemberus-gaap:ForeignExchangeContractMember2023-10-012023-12-310000319201us-gaap:OtherNonoperatingIncomeExpenseMemberus-gaap:ForeignExchangeContractMember2023-10-012023-12-310000319201us-gaap:SalesMemberus-gaap:TreasuryLockMember2024-07-012024-12-310000319201klac:CostOfRevenuesAndOperatingExpenseMemberus-gaap:TreasuryLockMember2024-07-012024-12-310000319201us-gaap:InterestExpenseMemberus-gaap:TreasuryLockMember2024-07-012024-12-310000319201us-gaap:OtherNonoperatingIncomeExpenseMemberus-gaap:TreasuryLockMember2024-07-012024-12-310000319201us-gaap:SalesMemberus-gaap:TreasuryLockMember2023-07-012023-12-310000319201klac:CostOfRevenuesAndOperatingExpenseMemberus-gaap:TreasuryLockMember2023-07-012023-12-310000319201us-gaap:InterestExpenseMemberus-gaap:TreasuryLockMember2023-07-012023-12-310000319201us-gaap:OtherNonoperatingIncomeExpenseMemberus-gaap:TreasuryLockMember2023-07-012023-12-310000319201us-gaap:SalesMemberus-gaap:ForeignExchangeContractMember2024-07-012024-12-310000319201klac:CostOfRevenuesAndOperatingExpenseMemberus-gaap:ForeignExchangeContractMember2024-07-012024-12-310000319201us-gaap:InterestExpenseMemberus-gaap:ForeignExchangeContractMember2024-07-012024-12-310000319201us-gaap:OtherNonoperatingIncomeExpenseMemberus-gaap:ForeignExchangeContractMember2024-07-012024-12-310000319201us-gaap:SalesMemberus-gaap:ForeignExchangeContractMember2023-07-012023-12-310000319201klac:CostOfRevenuesAndOperatingExpenseMemberus-gaap:ForeignExchangeContractMember2023-07-012023-12-310000319201us-gaap:InterestExpenseMemberus-gaap:ForeignExchangeContractMember2023-07-012023-12-310000319201us-gaap:OtherNonoperatingIncomeExpenseMemberus-gaap:ForeignExchangeContractMember2023-07-012023-12-310000319201us-gaap:ForeignExchangeContractMemberus-gaap:LongMemberus-gaap:CashFlowHedgingMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-12-310000319201us-gaap:ForeignExchangeContractMemberus-gaap:LongMemberus-gaap:CashFlowHedgingMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-06-300000319201us-gaap:ForeignExchangeContractMemberus-gaap:ShortMemberus-gaap:CashFlowHedgingMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-12-310000319201us-gaap:ForeignExchangeContractMemberus-gaap:ShortMemberus-gaap:CashFlowHedgingMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-06-300000319201us-gaap:ForeignExchangeContractMemberus-gaap:ShortMemberus-gaap:NetInvestmentHedgingMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-12-310000319201us-gaap:ForeignExchangeContractMemberus-gaap:ShortMemberus-gaap:NetInvestmentHedgingMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-06-300000319201klac:OtherForeignCurrencyHedgeContractsMemberus-gaap:LongMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-12-310000319201klac:OtherForeignCurrencyHedgeContractsMemberus-gaap:LongMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-06-300000319201klac:OtherForeignCurrencyHedgeContractsMemberus-gaap:ShortMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-12-310000319201klac:OtherForeignCurrencyHedgeContractsMemberus-gaap:ShortMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-06-300000319201us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-12-310000319201us-gaap:ForeignExchangeContractMemberus-gaap:DesignatedAsHedgingInstrumentMember2024-06-300000319201us-gaap:DesignatedAsHedgingInstrumentMember2024-12-310000319201us-gaap:DesignatedAsHedgingInstrumentMember2024-06-300000319201us-gaap:ForeignExchangeContractMemberus-gaap:NondesignatedMember2024-12-310000319201us-gaap:ForeignExchangeContractMemberus-gaap:NondesignatedMember2024-06-300000319201us-gaap:NondesignatedMember2024-12-310000319201us-gaap:NondesignatedMember2024-06-300000319201us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember2024-09-300000319201us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember2023-09-300000319201us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember2024-06-300000319201us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember2023-06-300000319201us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember2024-10-012024-12-310000319201us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember2023-10-012023-12-310000319201us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember2024-07-012024-12-310000319201us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember2023-07-012023-12-310000319201us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember2024-12-310000319201us-gaap:AociDerivativeQualifyingAsHedgeExcludedComponentParentMember2023-12-3100003192012024-12-312024-12-310000319201us-gaap:OperatingSegmentsMemberklac:SemiconductorProcessControlMember2024-10-012024-12-310000319201us-gaap:OperatingSegmentsMemberklac:SemiconductorProcessControlMember2023-10-012023-12-310000319201us-gaap:OperatingSegmentsMemberklac:SemiconductorProcessControlMember2024-07-012024-12-310000319201us-gaap:OperatingSegmentsMemberklac:SemiconductorProcessControlMember2023-07-012023-12-310000319201us-gaap:OperatingSegmentsMemberklac:SpecialtySemiconductorProcessMember2024-10-012024-12-310000319201us-gaap:OperatingSegmentsMemberklac:SpecialtySemiconductorProcessMember2023-10-012023-12-310000319201us-gaap:OperatingSegmentsMemberklac:SpecialtySemiconductorProcessMember2024-07-012024-12-310000319201us-gaap:OperatingSegmentsMemberklac:SpecialtySemiconductorProcessMember2023-07-012023-12-310000319201us-gaap:OperatingSegmentsMemberklac:PCBAndComponentInspectionMember2024-10-012024-12-310000319201us-gaap:OperatingSegmentsMemberklac:PCBAndComponentInspectionMember2023-10-012023-12-310000319201us-gaap:OperatingSegmentsMemberklac:PCBAndComponentInspectionMember2024-07-012024-12-310000319201us-gaap:OperatingSegmentsMemberklac:PCBAndComponentInspectionMember2023-07-012023-12-310000319201us-gaap:OperatingSegmentsMember2024-10-012024-12-310000319201us-gaap:OperatingSegmentsMember2023-10-012023-12-310000319201us-gaap:OperatingSegmentsMember2024-07-012024-12-310000319201us-gaap:OperatingSegmentsMember2023-07-012023-12-310000319201klac:CorporateAndReconcilingItemsMember2024-10-012024-12-310000319201klac:CorporateAndReconcilingItemsMember2023-10-012023-12-310000319201klac:CorporateAndReconcilingItemsMember2024-07-012024-12-310000319201klac:CorporateAndReconcilingItemsMember2023-07-012023-12-310000319201country:CN2024-10-012024-12-310000319201country:CNus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2024-10-012024-12-310000319201country:CN2023-10-012023-12-310000319201country:CNus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2023-10-012023-12-310000319201country:CN2024-07-012024-12-310000319201country:CNus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2024-07-012024-12-310000319201country:CN2023-07-012023-12-310000319201country:CNus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2023-07-012023-12-310000319201country:TW2024-10-012024-12-310000319201country:TWus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2024-10-012024-12-310000319201country:TW2023-10-012023-12-310000319201country:TWus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2023-10-012023-12-310000319201country:TW2024-07-012024-12-310000319201country:TWus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2024-07-012024-12-310000319201country:TW2023-07-012023-12-310000319201country:TWus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2023-07-012023-12-310000319201country:KR2024-10-012024-12-310000319201country:KRus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2024-10-012024-12-310000319201country:KR2023-10-012023-12-310000319201country:KRus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2023-10-012023-12-310000319201country:KR2024-07-012024-12-310000319201country:KRus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2024-07-012024-12-310000319201country:KR2023-07-012023-12-310000319201country:KRus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2023-07-012023-12-310000319201srt:NorthAmericaMember2024-10-012024-12-310000319201srt:NorthAmericaMemberus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2024-10-012024-12-310000319201srt:NorthAmericaMember2023-10-012023-12-310000319201srt:NorthAmericaMemberus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2023-10-012023-12-310000319201srt:NorthAmericaMember2024-07-012024-12-310000319201srt:NorthAmericaMemberus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2024-07-012024-12-310000319201srt:NorthAmericaMember2023-07-012023-12-310000319201srt:NorthAmericaMemberus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2023-07-012023-12-310000319201country:JP2024-10-012024-12-310000319201country:JPus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2024-10-012024-12-310000319201country:JP2023-10-012023-12-310000319201country:JPus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2023-10-012023-12-310000319201country:JP2024-07-012024-12-310000319201country:JPus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2024-07-012024-12-310000319201country:JP2023-07-012023-12-310000319201country:JPus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2023-07-012023-12-310000319201klac:EuropeAndIsraelMember2024-10-012024-12-310000319201klac:EuropeAndIsraelMemberus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2024-10-012024-12-310000319201klac:EuropeAndIsraelMember2023-10-012023-12-310000319201klac:EuropeAndIsraelMemberus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2023-10-012023-12-310000319201klac:EuropeAndIsraelMember2024-07-012024-12-310000319201klac:EuropeAndIsraelMemberus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2024-07-012024-12-310000319201klac:EuropeAndIsraelMember2023-07-012023-12-310000319201klac:EuropeAndIsraelMemberus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2023-07-012023-12-310000319201klac:RestOfAsiaMember2024-10-012024-12-310000319201klac:RestOfAsiaMemberus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2024-10-012024-12-310000319201klac:RestOfAsiaMember2023-10-012023-12-310000319201klac:RestOfAsiaMemberus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2023-10-012023-12-310000319201klac:RestOfAsiaMember2024-07-012024-12-310000319201klac:RestOfAsiaMemberus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2024-07-012024-12-310000319201klac:RestOfAsiaMember2023-07-012023-12-310000319201klac:RestOfAsiaMemberus-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2023-07-012023-12-310000319201us-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2024-10-012024-12-310000319201us-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2023-10-012023-12-310000319201us-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2024-07-012024-12-310000319201us-gaap:GeographicConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2023-07-012023-12-310000319201klac:WaferInspectionMember2024-10-012024-12-310000319201us-gaap:ProductConcentrationRiskMemberklac:WaferInspectionMemberus-gaap:RevenueFromContractWithCustomerMember2024-10-012024-12-310000319201klac:WaferInspectionMember2023-10-012023-12-310000319201us-gaap:ProductConcentrationRiskMemberklac:WaferInspectionMemberus-gaap:RevenueFromContractWithCustomerMember2023-10-012023-12-310000319201klac:WaferInspectionMember2024-07-012024-12-310000319201us-gaap:ProductConcentrationRiskMemberklac:WaferInspectionMemberus-gaap:RevenueFromContractWithCustomerMember2024-07-012024-12-310000319201klac:WaferInspectionMember2023-07-012023-12-310000319201us-gaap:ProductConcentrationRiskMemberklac:WaferInspectionMemberus-gaap:RevenueFromContractWithCustomerMember2023-07-012023-12-310000319201klac:PatterningMember2024-10-012024-12-310000319201us-gaap:ProductConcentrationRiskMemberklac:PatterningMemberus-gaap:RevenueFromContractWithCustomerMember2024-10-012024-12-310000319201klac:PatterningMember2023-10-012023-12-310000319201us-gaap:ProductConcentrationRiskMemberklac:PatterningMemberus-gaap:RevenueFromContractWithCustomerMember2023-10-012023-12-310000319201klac:PatterningMember2024-07-012024-12-310000319201us-gaap:ProductConcentrationRiskMemberklac:PatterningMemberus-gaap:RevenueFromContractWithCustomerMember2024-07-012024-12-310000319201klac:PatterningMember2023-07-012023-12-310000319201us-gaap:ProductConcentrationRiskMemberklac:PatterningMemberus-gaap:RevenueFromContractWithCustomerMember2023-07-012023-12-310000319201klac:SpecialtySemiconductorProcessMember2024-10-012024-12-310000319201us-gaap:ProductConcentrationRiskMemberklac:SpecialtySemiconductorProcessMemberus-gaap:RevenueFromContractWithCustomerMember2024-10-012024-12-310000319201klac:SpecialtySemiconductorProcessMember2023-10-012023-12-310000319201us-gaap:ProductConcentrationRiskMemberklac:SpecialtySemiconductorProcessMemberus-gaap:RevenueFromContractWithCustomerMember2023-10-012023-12-310000319201klac:SpecialtySemiconductorProcessMember2024-07-012024-12-310000319201us-gaap:ProductConcentrationRiskMemberklac:SpecialtySemiconductorProcessMemberus-gaap:RevenueFromContractWithCustomerMember2024-07-012024-12-310000319201klac:SpecialtySemiconductorProcessMember2023-07-012023-12-310000319201us-gaap:ProductConcentrationRiskMemberklac:SpecialtySemiconductorProcessMemberus-gaap:RevenueFromContractWithCustomerMember2023-07-012023-12-310000319201klac:PCBAndComponentInspectionMember2024-10-012024-12-310000319201us-gaap:ProductConcentrationRiskMemberklac:PCBAndComponentInspectionMemberus-gaap:RevenueFromContractWithCustomerMember2024-10-012024-12-310000319201klac:PCBAndComponentInspectionMember2023-10-012023-12-310000319201us-gaap:ProductConcentrationRiskMemberklac:PCBAndComponentInspectionMemberus-gaap:RevenueFromContractWithCustomerMember2023-10-012023-12-310000319201klac:PCBAndComponentInspectionMember2024-07-012024-12-310000319201us-gaap:ProductConcentrationRiskMemberklac:PCBAndComponentInspectionMemberus-gaap:RevenueFromContractWithCustomerMember2024-07-012024-12-310000319201klac:PCBAndComponentInspectionMember2023-07-012023-12-310000319201us-gaap:ProductConcentrationRiskMemberklac:PCBAndComponentInspectionMemberus-gaap:RevenueFromContractWithCustomerMember2023-07-012023-12-310000319201us-gaap:ProductConcentrationRiskMemberus-gaap:ServiceMemberus-gaap:RevenueFromContractWithCustomerMember2024-10-012024-12-310000319201us-gaap:ProductConcentrationRiskMemberus-gaap:ServiceMemberus-gaap:RevenueFromContractWithCustomerMember2023-10-012023-12-310000319201us-gaap:ProductConcentrationRiskMemberus-gaap:ServiceMemberus-gaap:RevenueFromContractWithCustomerMember2024-07-012024-12-310000319201us-gaap:ProductConcentrationRiskMemberus-gaap:ServiceMemberus-gaap:RevenueFromContractWithCustomerMember2023-07-012023-12-310000319201klac:OtherRevenueMember2024-10-012024-12-310000319201us-gaap:ProductConcentrationRiskMemberklac:OtherRevenueMemberus-gaap:RevenueFromContractWithCustomerMember2024-10-012024-12-310000319201klac:OtherRevenueMember2023-10-012023-12-310000319201us-gaap:ProductConcentrationRiskMemberklac:OtherRevenueMemberus-gaap:RevenueFromContractWithCustomerMember2023-10-012023-12-310000319201klac:OtherRevenueMember2024-07-012024-12-310000319201us-gaap:ProductConcentrationRiskMemberklac:OtherRevenueMemberus-gaap:RevenueFromContractWithCustomerMember2024-07-012024-12-310000319201klac:OtherRevenueMember2023-07-012023-12-310000319201us-gaap:ProductConcentrationRiskMemberklac:OtherRevenueMemberus-gaap:RevenueFromContractWithCustomerMember2023-07-012023-12-310000319201us-gaap:ProductConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2024-10-012024-12-310000319201us-gaap:ProductConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2023-10-012023-12-310000319201us-gaap:ProductConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2024-07-012024-12-310000319201us-gaap:ProductConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2023-07-012023-12-310000319201klac:OneCustomerMemberus-gaap:CustomerConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2024-10-012024-12-310000319201klac:OneCustomerMemberus-gaap:CustomerConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2024-07-012024-12-310000319201klac:OneCustomerMemberus-gaap:CustomerConcentrationRiskMemberus-gaap:RevenueFromContractWithCustomerMember2023-07-012023-12-310000319201klac:OneCustomerMemberus-gaap:CustomerConcentrationRiskMemberus-gaap:AccountsReceivableMember2023-07-012024-06-300000319201klac:OneCustomerMemberus-gaap:CustomerConcentrationRiskMemberus-gaap:AccountsReceivableMember2024-07-012024-12-310000319201country:US2024-12-310000319201country:US2024-06-300000319201srt:EuropeMember2024-12-310000319201srt:EuropeMember2024-06-300000319201country:SG2024-12-310000319201country:SG2024-06-300000319201country:IL2024-12-310000319201country:IL2024-06-300000319201klac:RestOfAsiaMember2024-12-310000319201klac:RestOfAsiaMember2024-06-300000319201klac:DirectorTradingArrangementMember2024-10-012024-12-310000319201klac:OfficerTradingArrangementMemberklac:RichardWallaceMember2024-10-012024-12-310000319201klac:OfficerTradingArrangementMemberklac:RichardWallaceMember2024-12-31


(Mark one)
☒			1934年米国証券取引所法（securities exchange act of 1934）第13条または第15条(d)に基づく四半期報告書


KLA CORPORATION
(チャーターで指定された登録者の正確な名前)


Title of each class	Trading Symbol(s)	登録されている各取引所の名称
普通株式、1株あたり額面0.001ドル	KLAC	ザ・ナスダック・ストック・マーケット・llc
		ナスダック・グローバル・セレクト・マーケット


		PageNumber

PART I	FINANCIAL INFORMATION
Item 1.	財務諸表（未監査）
	2024 年 12 月 31 日および 2024 年 6 月 30 日現在の要約連結貸借対照表	3
	2024年12月31日および 2023年12月31日に終了した6ヵ月間に関する要約連結損益計算書	4
	2024年12月31日および 2023年12月31日に終了した6ヵ月間に関する要約連結包括利益計算書。	5
	2024年および 2023年12月31日に終了した各第3四半期連結会計期間および第2四半期連結累計期間の要約連結株主資本等変動計算書	6
	2024年および 2023年12月31日に終了した6ヵ月間の要約連結キャッシュ・フロー計算書	7
	要約連結財務諸表注記	8
Item 2.	財政状態および経営成績に関する経営陣の検討および分析	35
Item 3.	市場リスクに関する定量的・定性的開示	50
Item 4.	管理と手続き	51

PART II	OTHER INFORMATION
Item 1.	法的手続き	52
Item 1A.	リスク要因	52
Item 2.	株式証券の無登録販売およびその代金の使途	74
Item 3.	シニア証券のデフォルト	74
Item 4.	鉱山安全情報開示	74
Item 5.	その他の情報	74
Item 6.	展示品	76

署名		77


(単位：千ドル)	December 31,2024		June 30,2024
資産
流動資産:
現金および現金同等物	$	1,838,278	$	1,977,129
市場性のある有価証券	1,942,127		2,526,866
売掛金（純額）	2,334,977		1,833,041
棚卸資産	3,046,340		3,034,781
その他の流動資産	610,882		659,327
流動資産合計	9,772,604		10,031,144
土地、有形固定資産（純額	1,173,928		1,109,968
のれん(純額)	1,785,297		2,015,726
法人税等調整額	1,002,169		915,241
Purchased intangible assets, net	548,645		668,764
その他非流動資産	719,053		692,723
資産合計	$	15,001,696	$	15,433,566
LIABILITIES AND STOCKHOLDERS’ EQUITY
現在の負債:
買掛金	$	432,891	$	359,487
Deferred system revenue	1,072,565		985,856
Deferred service revenue	521,424		501,926
1年以内に返済予定の長期借入債務	—		749,936
その他流動負債	2,111,378		2,063,569
流動負債合計	4,138,258		4,660,774
長期債務	5,882,387		5,880,199
繰延税金負債	423,626		486,690
Deferred service revenue	333,758		294,460
その他非流動負債	639,118		743,115
負債合計	11,417,147		12,065,238
コミットメントおよび偶発債務（注記8、13および14)
株主資本の部:
額面超過の普通株式および資本金	2,346,346		2,280,133
利益剰余金	1,284,589		1,137,270
その他の包括損失累計額	(46,386)		(49,075)


株主資本合計	3,584,549		3,368,328
負債および株主資本合計	$	15,001,696	$	15,433,566


	12月31日までの3ヵ月間,				12月31日までの6ヶ月間,
(単位：千米ドル、ただし1株当たりの金額を除く)	2024		2023		2024		2023
売上高:
Product	$	2,409,462	$	1,921,809	$	4,606,851	$	3,758,473
Service	667,389		564,917		1,311,541		1,125,209
収益合計	3,076,851		2,486,726		5,918,392		4,883,682
費用および経費:
Costs of revenues	1,221,461		976,746		2,368,892		1,923,637
研究開発費	346,157		320,418		669,302		631,632
販売費及び一般管理費	267,081		237,244		518,123		476,889
営業権および購入無形資産の減損	239,100		219,000		239,100		219,000
支払利息	74,981		74,202		157,152		148,436

その他の費用（収益）（純額	(44,458)		(32,154)		(85,393)		(58,893)
税引前利益	972,529		691,270		2,051,216		1,542,981
法人税等の支払額	148,002		108,736		280,838		219,072

純利益	824,527		582,534		1,770,378		1,323,909



基本	$	6.18	$	4.30	$	13.24	$	9.74
希薄化後	$	6.16	$	4.28	$	13.17	$	9.69
Weighted-average number of shares:
基本	133,327		135,539		133,730		135,976
希薄化後	133,926		136,254		134,415		136,684


	普通株式及び資本金等増加高			RetainedEarnings		AccumulatedOtherComprehensiveIncome (Loss)		株主資本合計
(単位：千米ドル、ただし1株当たりの金額を除く)	Shares	Amount
2024年6月30日現在の残高	134,425	$	2,280,133	$	1,137,270	$	(49,075)	$	3,368,328

純利益	—	—		945,851		—		945,851





Other comprehensive income	—	—		—		23,571		23,571
従業員株式制度に基づく発行額	134	(72,245)		—		—		(72,245)
普通株式の買戻し	(740)	(12,536)		(558,400)		—		(570,936)
現金配当（1株当たり1.45ドル）および配当相当額の公表	—	—		(196,555)		—		(196,555)

株式ベース報酬費用	—	61,700		—		—		61,700


2024年9月30日現在の残高	133,819	2,257,052		1,328,166		(25,504)		3,559,714
純利益	—	—		824,527		—		824,527

その他の包括損失	—	—		—		(20,882)		(20,882)
従業員株式制度に基づく発行額	104	43,931		—		—		43,931
普通株式の買戻し	(979)	(16,478)		(639,495)		—		(655,973)
現金配当（1株当たり1.70ドル）および配当相当額の公表	—	—		(228,609)		—		(228,609)

株式ベース報酬費用	—	61,841		—		—		61,841
2024年12月31日現在の残高	132,944	$	2,346,346	$	1,284,589	$	(46,386)	$	3,584,549


FORM			10-Q


	12月31日までの3ヵ月間,				12月31日までの6ヶ月間,
(単位：千ドル)	2024		2023		2024		2023
純利益	$	824,527	$	582,534	$	1,770,378	$	1,323,909
その他の包括利益（損失:
Currency translation adjustments:
Cumulative currency translation adjustments	(15,281)		3,272		(5,024)		(3,581)
法人税（引当金）の支払い	2,002		(878)		854		(618)
通貨換算調整額に関する純増減	(13,279)		2,394		(4,170)		(4,199)
キャッシュ・フロー・ヘッジ:
期間中に生じた正味の未実現利益	1,889		9,806		4,987		8,325
当期純利益に含まれる利益への組替調整額	(2,260)		(8,953)		(5,768)		(16,061)
法人税（引当金）の支払い	(1,118)		2,675		1,095		3,531
キャッシュ・フロー・ヘッジに関連する純変動	(1,489)		3,528		314		(4,205)
確定給付制度に関連する未認識利益（損失）および移行義務に関連する純変動	807		(395)		575		(153)
Available-for-sale securities:
期間中に生じた正味の未実現利益（損失）について	(8,816)		14,760		7,606		16,004
純利益に含まれる純（益）損失の再分類調整	(1)		61		—		73
法人税（引当金）の支払い	1,896		(3,174)		(1,636)		(3,443)
売却可能有価証券に関連する純変動	(6,921)		11,647		5,970		12,634
Other comprehensive income (loss)	(20,882)		17,174		2,689		4,077

包括利益合計	$	803,645	$	599,708	$	1,773,067	$	1,327,986