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<link:definition>1022 - Disclosure - Geographic and Other Information</link:definition>
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<link:definition>1029 - Disclosure - Inventories (Tables)</link:definition>
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<link:definition>1052 - Disclosure - Leases - Additional Information (Detail)</link:definition>
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<link:definition>1053 - Disclosure - Leases - Supplemental Balance Sheet (Detail)</link:definition>
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<link:definition>1055 - Disclosure - Leases - Other lease information (Detail)</link:definition>
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<link:definition>1058 - Disclosure - Derivative Financial Instruments - Additional Information (Detail)</link:definition>
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<element name="FoundryServicesGroupAndFabFourMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_FoundryServicesGroupAndFabFourMember" substitutionGroup="xbrli:item" />
<element name="RestructuringAndOtherExpenses" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_RestructuringAndOtherExpenses" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="ScheduleOfDisposalGroupNotDiscontinuedOperationAlternativeCashFlowInformationTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_ScheduleOfDisposalGroupNotDiscontinuedOperationAlternativeCashFlowInformationTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="ScheduleOfDisposalGroupNotDiscontinuedOperationAlternativeCashFlowInformationLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_ScheduleOfDisposalGroupNotDiscontinuedOperationAlternativeCashFlowInformationLineItems" substitutionGroup="xbrli:item" />
<element name="ProvisionForSeveranceBenefitsDiscontinuedOperations" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_ProvisionForSeveranceBenefitsDiscontinuedOperations" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="StockBasedCompensationDiscontinuedOperations" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_StockBasedCompensationDiscontinuedOperations" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="FoundryServicesGroupAndFabThreeFoundryServicesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_FoundryServicesGroupAndFabThreeFoundryServicesMember" substitutionGroup="xbrli:item" />
<element name="AssetsReclassifiedToHeldForSaleAssets" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_AssetsReclassifiedToHeldForSaleAssets" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="InventoryValuationReservesChangesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_InventoryValuationReservesChangesAbstract" substitutionGroup="xbrli:item" />
<element name="InventoryReserveChargedToCostsOfSales" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_InventoryReserveChargedToCostsOfSales" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="SaleOfPreviouslyReservedInventory" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_SaleOfPreviouslyReservedInventory" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="InventoryValuationReservesChanges" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_InventoryValuationReservesChanges" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="InventoryValuationReservesForeignCurrencyTranslationAdjustments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_InventoryValuationReservesForeignCurrencyTranslationAdjustments" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="FinanceLeaseRightOfUseAssetsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_FinanceLeaseRightOfUseAssetsMember" substitutionGroup="xbrli:item" />
<element name="RemainingLeaseTerm" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_RemainingLeaseTerm" substitutionGroup="xbrli:item" />
<element name="CurrentOperatingLeaseLiabilitiesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_CurrentOperatingLeaseLiabilitiesMember" substitutionGroup="xbrli:item" />
<element name="NonCurrentoperatingLeaseLiabilitiesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_NonCurrentoperatingLeaseLiabilitiesMember" substitutionGroup="xbrli:item" />
<element name="OperatingLeaseRightOfUseAssetsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_OperatingLeaseRightOfUseAssetsMember" substitutionGroup="xbrli:item" />
<element name="LeaseLiabilitiesCurrentAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_LeaseLiabilitiesCurrentAbstract" substitutionGroup="xbrli:item" />
<element name="LeaseLiabilitiesNoncurrentAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_LeaseLiabilitiesNoncurrentAbstract" substitutionGroup="xbrli:item" />
<element name="LeasesAssetsAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_LeasesAssetsAbstract" substitutionGroup="xbrli:item" />
<element name="LeaseRightOfUseAsset" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="mx_LeaseRightOfUseAsset" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="LeaseLiabilities" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="mx_LeaseLiabilities" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="WeightedAverageDiscountRateAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_WeightedAverageDiscountRateAbstract" substitutionGroup="xbrli:item" />
<element name="CashPaidForAmountsIncludedInMeasurementOfLeaseLiabilitiesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_CashPaidForAmountsIncludedInMeasurementOfLeaseLiabilitiesAbstract" substitutionGroup="xbrli:item" />
<element name="FinanceLeasepayments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_FinanceLeasepayments" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="WeightedAverageRemainingLeaseTermAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_WeightedAverageRemainingLeaseTermAbstract" substitutionGroup="xbrli:item" />
<element name="OperatingLeasePresentValueAdjustments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="mx_OperatingLeasePresentValueAdjustments" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="FinanceLeasesAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_FinanceLeasesAbstract" substitutionGroup="xbrli:item" />
<element name="FinanceLeasesFutureMinimumPaymentsInterestIncludedInPayments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="mx_FinanceLeasesFutureMinimumPaymentsInterestIncludedInPayments" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="FinanceLeasesFutureMinimumPaymentsRemainderOfFiscalYear" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="mx_FinanceLeasesFutureMinimumPaymentsRemainderOfFiscalYear" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="FinanceLeasesTotalFutureLeasePayments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="mx_FinanceLeasesTotalFutureLeasePayments" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="FinanceLeasesFutureMinimumPaymentsDueInTwoYears" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="mx_FinanceLeasesFutureMinimumPaymentsDueInTwoYears" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="FinanceLeasesFutureMinimumPaymentsDueInThreeYears" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="mx_FinanceLeasesFutureMinimumPaymentsDueInThreeYears" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="FinanceLeasesFutureMinimumPaymentsDueInFiveYears" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="mx_FinanceLeasesFutureMinimumPaymentsDueInFiveYears" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="FinanceLeasesFutureMinimumPaymentsDueInOneYears" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="mx_FinanceLeasesFutureMinimumPaymentsDueInOneYears" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="AccruedOutsideServiceFeesCurrent" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="mx_AccruedOutsideServiceFeesCurrent" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="RestructuringAndOthersCurrent" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="mx_RestructuringAndOthersCurrent" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="NomuraFinancialInvestmentCoLtdMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_NomuraFinancialInvestmentCoLtdMember" substitutionGroup="xbrli:item" />
<element name="ZeroCostCollarAndForwardContractsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_ZeroCostCollarAndForwardContractsMember" substitutionGroup="xbrli:item" />
<element name="MinimumSumOfQualifiedAndUnrestrictedCashAndCashEquivalents" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="mx_MinimumSumOfQualifiedAndUnrestrictedCashAndCashEquivalents" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="ThresholdAmountCashCollateralForeignCurrencyExposure" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="mx_ThresholdAmountCashCollateralForeignCurrencyExposure" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="DerivativeSettlementEndDateMonthYear" type="xbrli:gYearMonthItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_DerivativeSettlementEndDateMonthYear" substitutionGroup="xbrli:item" />
<element name="DerivativeSettlementStartDateMonthYear" type="xbrli:gYearMonthItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_DerivativeSettlementStartDateMonthYear" substitutionGroup="xbrli:item" />
<element name="ZeroCostCollarOneMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_ZeroCostCollarOneMember" substitutionGroup="xbrli:item" />
<element name="ZeroCostCollarTwoMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_ZeroCostCollarTwoMember" substitutionGroup="xbrli:item" />
<element name="ZeroCostCollarThreeMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_ZeroCostCollarThreeMember" substitutionGroup="xbrli:item" />
<element name="ZeroCostCollarsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_ZeroCostCollarsMember" substitutionGroup="xbrli:item" />
<element name="DepositAssetsTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_DepositAssetsTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="DepositAssetsLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_DepositAssetsLineItems" substitutionGroup="xbrli:item" />
<element name="StandardCharteredBankKoreaLimitedMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_StandardCharteredBankKoreaLimitedMember" substitutionGroup="xbrli:item" />
<element name="ExchangeableSeniorNotesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_ExchangeableSeniorNotesMember" substitutionGroup="xbrli:item" />
<element name="FivePointZeroPercentageExchangeableSeniorNotesDueTwoThousandTwentyOneMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_FivePointZeroPercentageExchangeableSeniorNotesDueTwoThousandTwentyOneMember" substitutionGroup="xbrli:item" />
<element name="OtherAssetClassMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_OtherAssetClassMember" substitutionGroup="xbrli:item" />
<element name="DebtInstrumentPricing" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_DebtInstrumentPricing" substitutionGroup="xbrli:item" />
<element name="EmployeesEligibleForSeveranceBenefitsPercentage" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="mx_EmployeesEligibleForSeveranceBenefitsPercentage" substitutionGroup="xbrli:item" />
<element name="DefinedBenefitPlanEmployeeRetirementAge" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_DefinedBenefitPlanEmployeeRetirementAge" substitutionGroup="xbrli:item" />
<element name="CumulativeContributionsToSeveranceInsuranceDepositAccounts" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_CumulativeContributionsToSeveranceInsuranceDepositAccounts" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="PostemploymentBenefitsTranslationAdjustment" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_PostemploymentBenefitsTranslationAdjustment" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="CumulativeContributionsToNationalPensionFund" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_CumulativeContributionsToNationalPensionFund" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="GroupSeveranceInsurancePlan" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_GroupSeveranceInsurancePlan" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="PostemploymentBenefitsProvisions" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_PostemploymentBenefitsProvisions" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="PostemploymentBenefitsSeverancePayments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_PostemploymentBenefitsSeverancePayments" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="IntercompanyLoan" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="mx_IntercompanyLoan" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="PercentageOfPotentialUtilizationOfTaxableIncomeForTaxLossCarryForwardFiscalYear" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="mx_PercentageOfPotentialUtilizationOfTaxableIncomeForTaxLossCarryForwardFiscalYear" substitutionGroup="xbrli:item" />
<element name="TaxAssessmentAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_TaxAssessmentAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="TaxAssessmentDomain" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_TaxAssessmentDomain" substitutionGroup="xbrli:item" />
<element name="ChinaAndHongKongMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_ChinaAndHongKongMember" substitutionGroup="xbrli:item" />
<element name="AsiaPacificOtherThanKoreaMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_AsiaPacificOtherThanKoreaMember" substitutionGroup="xbrli:item" />
<element name="TopCustomerTwoMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_TopCustomerTwoMember" substitutionGroup="xbrli:item" />
<element name="TopTenCustomersMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_TopTenCustomersMember" substitutionGroup="xbrli:item" />
<element name="TopCustomerOneMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_TopCustomerOneMember" substitutionGroup="xbrli:item" />
<element name="PowerSolutionsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_PowerSolutionsMember" substitutionGroup="xbrli:item" />
<element name="DisplaySolutionsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_DisplaySolutionsMember" substitutionGroup="xbrli:item" />
<element name="OtherCountriesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_OtherCountriesMember" substitutionGroup="xbrli:item" />
<element name="BasicEarningsLossPerCommonShareAbstract" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_BasicEarningsLossPerCommonShareAbstract" substitutionGroup="xbrli:item" />
<element name="IncomeLossFromContinuingOperationsAllocatedToCommonStockholders" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_IncomeLossFromContinuingOperationsAllocatedToCommonStockholders" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="InterestExpenseOnExchangeableNotes" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_InterestExpenseOnExchangeableNotes" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="EarningsPerShareTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_EarningsPerShareTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="EarningsPerShareLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_EarningsPerShareLineItems" substitutionGroup="xbrli:item" />
<element name="EmployeeAndNonEmployeeStockOptionMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_EmployeeAndNonEmployeeStockOptionMember" substitutionGroup="xbrli:item" />
<element name="OtherOperatingIncomeAndExpenseTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_OtherOperatingIncomeAndExpenseTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="OtherOperatingIncomeAndExpenseLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="mx_OtherOperatingIncomeAndExpenseLineItems" substitutionGroup="xbrli:item" />
<element name="RegulatoryRequestsNonRecurringProfessionalFeesAndExpenses" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_RegulatoryRequestsNonRecurringProfessionalFeesAndExpenses" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="NonRecurringProfessionalFeesAndExpensesForTreasuryAndFinanceInitiatives" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="mx_NonRecurringProfessionalFeesAndExpensesForTreasuryAndFinanceInitiatives" substitutionGroup="xbrli:item" xbrli:balance="debit" />
</schema>
