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        <link:definition>147 - Disclosure - Schedule of Assets and Liabilities Measured at Fair Value as Reported in Consolidated Balance Sheet (Detail)</link:definition>
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  <import namespace="http://fasb.org/us-types/2013-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2013/elts/us-types-2013-01-31.xsd"/>
  <import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd"/>
  <import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd"/>
  <import namespace="http://fasb.org/us-gaap/2013-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2013/elts/us-gaap-2013-01-31.xsd"/>
  <import namespace="http://xbrl.sec.gov/country/2013-01-31" schemaLocation="http://xbrl.sec.gov/country/2013/country-2013-01-31.xsd"/>
  <import namespace="http://xbrl.sec.gov/currency/2012-01-31" schemaLocation="http://xbrl.sec.gov/currency/2012/currency-2012-01-31.xsd"/>
  <import namespace="http://xbrl.sec.gov/dei/2013-01-31" schemaLocation="http://xbrl.sec.gov/dei/2013/dei-2013-01-31.xsd"/>
  <import namespace="http://xbrl.sec.gov/exch/2013-01-31" schemaLocation="http://xbrl.sec.gov/exch/2013/exch-2013-01-31.xsd"/>
  <import namespace="http://xbrl.sec.gov/invest/2013-01-31" schemaLocation="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd"/>
  <import namespace="http://xbrl.sec.gov/stpr/2011-01-31" schemaLocation="http://xbrl.sec.gov/stpr/2011/stpr-2011-01-31.xsd"/>
  <element name="AdditionalPaidInCapitalTaxCarryforwardBenefit" id="lrcx_AdditionalPaidInCapitalTaxCarryforwardBenefit" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtAcquired" id="lrcx_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtAcquired" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="AdjustmentsToAdditionalPaidInCapitalResultingFromConversionOfConvertibleDebtIntoEquity" id="lrcx_AdjustmentsToAdditionalPaidInCapitalResultingFromConversionOfConvertibleDebtIntoEquity" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="AmendedAndRestatedFacilityMember" id="lrcx_AmendedAndRestatedFacilityMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="AmendedLeaseAgreementsMember" id="lrcx_AmendedLeaseAgreementsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="AssetsCorrelatedToDeferredCompensationObligation" id="lrcx_AssetsCorrelatedToDeferredCompensationObligation" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="AssetsLineItems" id="lrcx_AssetsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="AssetTable" id="lrcx_AssetTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInInvestments" id="lrcx_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInInvestments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInInvestments" id="lrcx_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInInvestments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesAccumulatedInInvestments" id="lrcx_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesAccumulatedInInvestments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="AvailableForSaleSecuritiesDebtMaturitiesAfterFiveYearsAmortizedCost" id="lrcx_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveYearsAmortizedCost" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="AvailableForSaleSecuritiesDebtMaturitiesAfterFiveYearsFairValue" id="lrcx_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveYearsFairValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="BacklogMember" id="lrcx_BacklogMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CaliforniaAndForeignMember" id="lrcx_CaliforniaAndForeignMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CashAndShortTermInvestmentsMember" id="lrcx_CashAndShortTermInvestmentsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ChangeInPercentageOfCommonStockPriceOverMarketPricePerformance" id="lrcx_ChangeInPercentageOfCommonStockPriceOverMarketPricePerformance" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ChangeInPercentageOfTargetShares" id="lrcx_ChangeInPercentageOfTargetShares" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommitmentsAndContingenciesLineItems" id="lrcx_CommitmentsAndContingenciesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CommitmentsAndContingenciesTable" id="lrcx_CommitmentsAndContingenciesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="ComponentOfOtherExpenseIncomeNonoperatingLineItems" id="lrcx_ComponentOfOtherExpenseIncomeNonoperatingLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ComponentOfOtherExpenseIncomeNonoperatingTable" id="lrcx_ComponentOfOtherExpenseIncomeNonoperatingTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="ComputerSoftwareMember" id="lrcx_ComputerSoftwareMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ContingencyInterestPayableRate" id="lrcx_ContingencyInterestPayableRate" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ContractOneMember" id="lrcx_ContractOneMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ContractTwoMember" id="lrcx_ContractTwoMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ContractTypeAxis" id="lrcx_ContractTypeAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:dimensionItem"/>
  <element name="ContractTypeDomain" id="lrcx_ContractTypeDomain" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ContractualCashObligationsLongTermDebt" id="lrcx_ContractualCashObligationsLongTermDebt" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ContractualInterestCoupon" id="lrcx_ContractualInterestCoupon" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ContractualObligationsMember" id="lrcx_ContractualObligationsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ConvertibleNoteHedgeMember" id="lrcx_ConvertibleNoteHedgeMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CostOfConvertibleNoteHedge" id="lrcx_CostOfConvertibleNoteHedge" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CustomerFourMember" id="lrcx_CustomerFourMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CustomerOneMember" id="lrcx_CustomerOneMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CustomerThreeMember" id="lrcx_CustomerThreeMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="CustomerTwoMember" id="lrcx_CustomerTwoMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DebtInstrumentConvertibleInitialCarryingAmountOfLiabilityComponent" id="lrcx_DebtInstrumentConvertibleInitialCarryingAmountOfLiabilityComponent" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DebtInstrumentsMaturityDate1" id="lrcx_DebtInstrumentsMaturityDate1" type="us-types:dateStringItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DebtToCapitalizationRatio" id="lrcx_DebtToCapitalizationRatio" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DeferredCompensationArrangementMaximumDistributionPeriod" id="lrcx_DeferredCompensationArrangementMaximumDistributionPeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DeferredCompensationPaymentWaitingPeriod" id="lrcx_DeferredCompensationPaymentWaitingPeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DeferredIncomeTaxExpenseBenefitShareBasedCompensation" id="lrcx_DeferredIncomeTaxExpenseBenefitShareBasedCompensation" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DeferredTaxAssetsAndLiabilitiesLineItems" id="lrcx_DeferredTaxAssetsAndLiabilitiesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DeferredTaxAssetsAndLiabilitiesTable" id="lrcx_DeferredTaxAssetsAndLiabilitiesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="DeferredTaxesAndOtherLiabilitiesMember" id="lrcx_DeferredTaxesAndOtherLiabilitiesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DeferredTaxLiabilityRelatedToConvertibleNoteHedge" id="lrcx_DeferredTaxLiabilityRelatedToConvertibleNoteHedge" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DefinedContributionPlanEmployerMatchingPercentage" id="lrcx_DefinedContributionPlanEmployerMatchingPercentage" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DefinedContributionPlanMinimumAnnualContributionsPerEmployeePercent" id="lrcx_DefinedContributionPlanMinimumAnnualContributionsPerEmployeePercent" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DiscountRateUsedToCalculatePresentValueOfCashFlows" id="lrcx_DiscountRateUsedToCalculatePresentValueOfCashFlows" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DiscountRateUsedToDetermineLiabilityFairValue" id="lrcx_DiscountRateUsedToDetermineLiabilityFairValue" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="DocumentAndEntityInformationAbstract" id="lrcx_DocumentAndEntityInformationAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="EmployeeBenefitPlanLineItems" id="lrcx_EmployeeBenefitPlanLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="EmployeeBenefitPlanTable" id="lrcx_EmployeeBenefitPlanTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="EmployeeStockPurchasePlanMember" id="lrcx_EmployeeStockPurchasePlanMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ExistingStockPlansMember" id="lrcx_ExistingStockPlansMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ExistingTechnologyMember" id="lrcx_ExistingTechnologyMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FederalAndStateTaxCreditsMember" id="lrcx_FederalAndStateTaxCreditsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FederalFundsRateMember" id="lrcx_FederalFundsRateMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FederalMember" id="lrcx_FederalMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FederalTaxMember" id="lrcx_FederalTaxMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FinancialInstrumentsLineItems" id="lrcx_FinancialInstrumentsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FinancialInstrumentsMember" id="lrcx_FinancialInstrumentsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FinancialInstrumentsTable" id="lrcx_FinancialInstrumentsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="FixedIncomeMoneyMarketFundsMember" id="lrcx_FixedIncomeMoneyMarketFundsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsContractValue" id="lrcx_ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsContractValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="FremontAndLivermoreLeaseMember" id="lrcx_FremontAndLivermoreLeaseMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="GainOrLossOnAssetsRelatedToDeferredCompensationPlan" id="lrcx_GainOrLossOnAssetsRelatedToDeferredCompensationPlan" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="GoodwillAndIntangibleAssetsLineItems" id="lrcx_GoodwillAndIntangibleAssetsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="GoodwillAndIntangibleAssetsTable" id="lrcx_GoodwillAndIntangibleAssetsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="IncomeTaxLineItems" id="lrcx_IncomeTaxLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="IncomeTaxReconciliationAcquisitionRelatedTransactionCosts" id="lrcx_IncomeTaxReconciliationAcquisitionRelatedTransactionCosts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="IncomeTaxTable" id="lrcx_IncomeTaxTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="InitialAllocationMember" id="lrcx_InitialAllocationMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="InProcessResearchAndDevelopmentsMember" id="lrcx_InProcessResearchAndDevelopmentsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="InvestmentLiquidationPeriod" id="lrcx_InvestmentLiquidationPeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="InvestmentsAmortizedCost" id="lrcx_InvestmentsAmortizedCost" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="InvestmentsUnrealizedGain" id="lrcx_InvestmentsUnrealizedGain" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="InvestmentsUnrealizedLoss" id="lrcx_InvestmentsUnrealizedLoss" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="LineOfCreditFacilityAdditionalBorrowingCapacity" id="lrcx_LineOfCreditFacilityAdditionalBorrowingCapacity" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="LiquidityAmountMinimum" id="lrcx_LiquidityAmountMinimum" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MajorityOfContractsMember" id="lrcx_MajorityOfContractsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MaximumPercentageOfAggregateInvestmentValueGuaranteed" id="lrcx_MaximumPercentageOfAggregateInvestmentValueGuaranteed" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="MutualFundsMember" id="lrcx_MutualFundsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NetCashReceivedInSettlementOfPaidInAdvanceForStockRepurchaseContracts" id="lrcx_NetCashReceivedInSettlementOfPaidInAdvanceForStockRepurchaseContracts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NetOperatingLossCarryforwardsBeginsToExpire" id="lrcx_NetOperatingLossCarryforwardsBeginsToExpire" type="xbrli:gYearItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NetOperatingLossCarryforwardsWithIndefiniteCarryforwardPeriodMember" id="lrcx_NetOperatingLossCarryforwardsWithIndefiniteCarryforwardPeriodMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NoteIncrementForWhichConversionAmountOfCommonStockIsBased" id="lrcx_NoteIncrementForWhichConversionAmountOfCommonStockIsBased" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfNotesConverted" id="lrcx_NumberOfNotesConverted" type="xbrli:integerItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfOperatingLeases" id="lrcx_NumberOfOperatingLeases" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfOperatingLocations" id="lrcx_NumberOfOperatingLocations" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfSharesAvailableForPurchaseUnderEmployeesStockPurchasePlan" id="lrcx_NumberOfSharesAvailableForPurchaseUnderEmployeesStockPurchasePlan" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfTerminatedLeases" id="lrcx_NumberOfTerminatedLeases" type="xbrli:integerItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfTradingDaysForValuationOfShares" id="lrcx_NumberOfTradingDaysForValuationOfShares" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OnePointTwoFivePercentConvertibleSeniorNotesDueTwoThousandEighteenMember" id="lrcx_OnePointTwoFivePercentConvertibleSeniorNotesDueTwoThousandEighteenMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OperatingLeaseCashCollateralMember" id="lrcx_OperatingLeaseCashCollateralMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OperatingLeaseMarketableSecuritiesCollateralMember" id="lrcx_OperatingLeaseMarketableSecuritiesCollateralMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OperatingLeasePurchaseOptionNotificationPeriod" id="lrcx_OperatingLeasePurchaseOptionNotificationPeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OperatingLeaseResidualValueGuarantee" id="lrcx_OperatingLeaseResidualValueGuarantee" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OperatingLeaseTermPeriod" id="lrcx_OperatingLeaseTermPeriod" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OperatingLossCarryforwardsExpiringTwoThousandFifteenMember" id="lrcx_OperatingLossCarryforwardsExpiringTwoThousandFifteenMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OptionsAndRestrictedStockUnitsIssuedAndOutstandingUnderStockPlan" id="lrcx_OptionsAndRestrictedStockUnitsIssuedAndOutstandingUnderStockPlan" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OtherIncomeExpenseMember" id="lrcx_OtherIncomeExpenseMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OtherNonOperatingIncomeExpenseOtherNet" id="lrcx_OtherNonOperatingIncomeExpenseOtherNet" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PercentageOfPrincipalAmountsBeingRepurchased" id="lrcx_PercentageOfPrincipalAmountsBeingRepurchased" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PerformanceBasedRestrictedStockUnitsRsuMember" id="lrcx_PerformanceBasedRestrictedStockUnitsRsuMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PrepaidExpensesFairValueDisclosure" id="lrcx_PrepaidExpensesFairValueDisclosure" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PrincipalAmountLessThanProductOfLastReportedSalePriceOfCommonStock" id="lrcx_PrincipalAmountLessThanProductOfLastReportedSalePriceOfCommonStock" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PrivateSecurityMember" id="lrcx_PrivateSecurityMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ProductWarrantyLiabilityLineItems" id="lrcx_ProductWarrantyLiabilityLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ProductWarrantyLiabilityTable" id="lrcx_ProductWarrantyLiabilityTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="RangeFiveMember" id="lrcx_RangeFiveMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="RangeFourMember" id="lrcx_RangeFourMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="RangeOneMember" id="lrcx_RangeOneMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="RangeThreeMember" id="lrcx_RangeThreeMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="RangeTwoMember" id="lrcx_RangeTwoMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ReclassifiedToCostOfGoodsSoldMember" id="lrcx_ReclassifiedToCostOfGoodsSoldMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ReclassifiedToRevenueMember" id="lrcx_ReclassifiedToRevenueMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ReclassifiedToSellingGeneralAndAdministrativeMember" id="lrcx_ReclassifiedToSellingGeneralAndAdministrativeMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ReconciliationOfIncomeTaxesLineItems" id="lrcx_ReconciliationOfIncomeTaxesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ReconciliationOfIncomeTaxesTable" id="lrcx_ReconciliationOfIncomeTaxesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="RepurchaseOfEquityUnitsMember" id="lrcx_RepurchaseOfEquityUnitsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="RestrictedCashAndInvestmentsMember" id="lrcx_RestrictedCashAndInvestmentsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="RestrictedCashFairValueDisclosure" id="lrcx_RestrictedCashFairValueDisclosure" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="RestrictedStockUnitsAssumed" id="lrcx_RestrictedStockUnitsAssumed" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="RestrictedStockUnitsAssumedWeightedAverageFairValueAtGrant" id="lrcx_RestrictedStockUnitsAssumedWeightedAverageFairValueAtGrant" type="num:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="RevenueMember" id="lrcx_RevenueMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScenarioOneMember" id="lrcx_ScenarioOneMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfAccruedLiabilitiesLineItems" id="lrcx_ScheduleOfAccruedLiabilitiesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfAccruedLiabilitiesTable" id="lrcx_ScheduleOfAccruedLiabilitiesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="ScheduleOfEarningsPerShareBasicAndDilutedByCommonClassLineItems" id="lrcx_ScheduleOfEarningsPerShareBasicAndDilutedByCommonClassLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfEarningsPerShareBasicAndDilutedByCommonClassTable" id="lrcx_ScheduleOfEarningsPerShareBasicAndDilutedByCommonClassTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="ScheduleOfIncomeBeforeIncomeTaxLineItems" id="lrcx_ScheduleOfIncomeBeforeIncomeTaxLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfIncomeBeforeIncomeTaxTable" id="lrcx_ScheduleOfIncomeBeforeIncomeTaxTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="ScheduleOfInterestCostRecognizedRelatingToBothContractualInterestCouponAndAmortizationOfDiscountTableTextBlock" id="lrcx_ScheduleOfInterestCostRecognizedRelatingToBothContractualInterestCouponAndAmortizationOfDiscountTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfShareRepurchaseProgramsAxis" id="lrcx_ScheduleOfShareRepurchaseProgramsAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:dimensionItem"/>
  <element name="ScheduleOfShareRepurchaseProgramsDomain" id="lrcx_ScheduleOfShareRepurchaseProgramsDomain" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfTaxEffectsAllocatedToEachComponentsOfOtherComprehensiveIncomeLossTableTextBlock" id="lrcx_ScheduleOfTaxEffectsAllocatedToEachComponentsOfOtherComprehensiveIncomeLossTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfUnrecognizedTaxBenefitsLineItems" id="lrcx_ScheduleOfUnrecognizedTaxBenefitsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfUnrecognizedTaxBenefitsTable" id="lrcx_ScheduleOfUnrecognizedTaxBenefitsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndRestrictedStockUnitsVestingPeriodMaximum" id="lrcx_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAndRestrictedStockUnitsVestingPeriodMaximum" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAvailableForAdditionalGrant" id="lrcx_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAvailableForAdditionalGrant" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentOfMarketPrice" id="lrcx_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentOfMarketPrice" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareRepurchaseProgramMember" id="lrcx_ShareRepurchaseProgramMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareRepurchaseProgramsMember" id="lrcx_ShareRepurchaseProgramsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SharesReceivableUnderConvertibleNoteHedge" id="lrcx_SharesReceivableUnderConvertibleNoteHedge" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShortTermInvestmentsFairValueDisclosure" id="lrcx_ShortTermInvestmentsFairValueDisclosure" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SouthEastAsiaMember" id="lrcx_SouthEastAsiaMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="StateMember" id="lrcx_StateMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="StockOptionsAssumed" id="lrcx_StockOptionsAssumed" type="xbrli:sharesItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="StockOptionsAssumedWeightedAverageExercisePrice" id="lrcx_StockOptionsAssumedWeightedAverageExercisePrice" type="num:perShareItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="StockPricePercentageOfConversionPrice" id="lrcx_StockPricePercentageOfConversionPrice" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="StockRepurchaseProgramLineItems" id="lrcx_StockRepurchaseProgramLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="StockRepurchaseProgramTable" id="lrcx_StockRepurchaseProgramTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="StockRepurchasesAxis" id="lrcx_StockRepurchasesAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:dimensionItem"/>
  <element name="StockRepurchasesDomain" id="lrcx_StockRepurchasesDomain" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SubsequentMember" id="lrcx_SubsequentMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TaxCreditCarryforwardsMember" id="lrcx_TaxCreditCarryforwardsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TaxCreditCarryforwardsWithIndefiniteCarryforwardPeriodMember" id="lrcx_TaxCreditCarryforwardsWithIndefiniteCarryforwardPeriodMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TaxCreditsCarryforwardsOtherMember" id="lrcx_TaxCreditsCarryforwardsOtherMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TwoPointSixTwoFivePercentConvertibleSeniorNotesDueTwoThousandFortyOneMember" id="lrcx_TwoPointSixTwoFivePercentConvertibleSeniorNotesDueTwoThousandFortyOneMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TwoThousandSixteenTwoThousandEighteenAndTwoThousandFortyOneSeniorNotesMember" id="lrcx_TwoThousandSixteenTwoThousandEighteenAndTwoThousandFortyOneSeniorNotesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ValuationAllowancesAndReservesDeductionsRecoveries" id="lrcx_ValuationAllowancesAndReservesDeductionsRecoveries" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ZeroPointFiveZeroPercentConvertibleSeniorNotesDueTwoThousandSixteenMember" id="lrcx_ZeroPointFiveZeroPercentConvertibleSeniorNotesDueTwoThousandSixteenMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
</schema>


