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  <xsd:element name="InventoryRawMaterialsAdjustments" id="laes_InventoryRawMaterialsAdjustments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="InventoryWorkInProcessAdjustments" id="laes_InventoryWorkInProcessAdjustments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="WecanGroupAgMember" id="laes_WecanGroupAgMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EquityMethodInvestmentFullyDilutedOwnershipPercentage" id="laes_EquityMethodInvestmentFullyDilutedOwnershipPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="StockIssuedDuringPeriodSharesEquityMethodInvestments" id="laes_StockIssuedDuringPeriodSharesEquityMethodInvestments" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="StockIssuedDuringPeriodValueEquityMethodInvestments" id="laes_StockIssuedDuringPeriodValueEquityMethodInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="EquityMethodInvestmentTransactionCosts" id="laes_EquityMethodInvestmentTransactionCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="QuantixEdgeSecuritySLMember" id="laes_QuantixEdgeSecuritySLMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="Wisesat.spaceCorpMember" id="laes_Wisesat.spaceCorpMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EquityMethodInvestmentSharesAcquired" id="laes_EquityMethodInvestmentSharesAcquired" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AccountsReceivableFromUnderwritersPromotersAndEmployees" id="laes_AccountsReceivableFromUnderwritersPromotersAndEmployees" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NumberOfConvertibleBondsAgreementHeld" id="laes_NumberOfConvertibleBondsAgreementHeld" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="OtherNoncurrentAssetsTextBlock" id="laes_OtherNoncurrentAssetsTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AccountsPayableShareholdersCurrent" id="laes_AccountsPayableShareholdersCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AccountsPayableBoardMembersCurrent" id="laes_AccountsPayableBoardMembersCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AccountsPayableOtherRelatedPartiesCurrent" id="laes_AccountsPayableOtherRelatedPartiesCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AccountsPayableTable" id="laes_AccountsPayableTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AccountsPayableLineItems" id="laes_AccountsPayableLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OtherRelatedPartiesMember" id="laes_OtherRelatedPartiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ProductionCapacityInvestmentLoanAgreementMember" id="laes_ProductionCapacityInvestmentLoanAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="StampDutyLiabilityCurrent" id="laes_StampDutyLiabilityCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DirectRegisteredOfferingMember" id="laes_DirectRegisteredOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AtMarketOfferingMember" id="laes_AtMarketOfferingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="StockIssuedDuringPeriodValueWarrantsExercised" id="laes_StockIssuedDuringPeriodValueWarrantsExercised" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="StockIssuedDuringPeriodSharesWarrantsExercised" id="laes_StockIssuedDuringPeriodSharesWarrantsExercised" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IntangibleAssetsAndCryptoAssetsDisclosureTextBlock" id="laes_IntangibleAssetsAndCryptoAssetsDisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScheduleOfIntangibleAssetsAndCryptoAssetsTableTextBlock" id="laes_ScheduleOfIntangibleAssetsAndCryptoAssetsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FutureOperationsAndGoingConcernAbstract" id="laes_FutureOperationsAndGoingConcernAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="FutureOperationsAndGoingConcernTextBlock" id="laes_FutureOperationsAndGoingConcernTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="WorkingCapitalSurplusDeficit" id="laes_WorkingCapitalSurplusDeficit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DeferredTaxCreditsTextBlock" id="laes_DeferredTaxCreditsTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DeferredTaxAssetWriteOff" id="laes_DeferredTaxAssetWriteOff" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ReclassificationFromOperatingActivitiesToFinancialActivities" id="laes_ReclassificationFromOperatingActivitiesToFinancialActivities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IncreaseDecreaseInDeferredRevenueNoncurrent" id="laes_IncreaseDecreaseInDeferredRevenueNoncurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="PaymentsForProceedsFromCryptoAssets" id="laes_PaymentsForProceedsFromCryptoAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PaymentsForProceedsFromSimpleAgreementForFutureEquity" id="laes_PaymentsForProceedsFromSimpleAgreementForFutureEquity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PaymentsForProceedsFromInvestmentsExcludingDebtSecuritiesAvailableForSale" id="laes_PaymentsForProceedsFromInvestmentsExcludingDebtSecuritiesAvailableForSale" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IssuanceOfSharesInRelationToEquityMethodInvestments" id="laes_IssuanceOfSharesInRelationToEquityMethodInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="LeaseDisclosureTextBlock" id="laes_LeaseDisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScheduleOfLeaseBalanceSheetDisclosureTableTextBlock" id="laes_ScheduleOfLeaseBalanceSheetDisclosureTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NumberOfOperatingLeases" id="laes_NumberOfOperatingLeases" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="NumberOfFinanceLeases" id="laes_NumberOfFinanceLeases" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="LeaseRightOfUseAssetAfterAccumulatedAmortization" id="laes_LeaseRightOfUseAssetAfterAccumulatedAmortization" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="OperatingLeaseLiabilityToBePaidAfterYearFour" id="laes_OperatingLeaseLiabilityToBePaidAfterYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="LeaseLiabilityToBePaidYearOne" id="laes_LeaseLiabilityToBePaidYearOne" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="LeaseLiabilityToBePaidYearTwo" id="laes_LeaseLiabilityToBePaidYearTwo" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="LeaseLiabilityToBePaidYearThree" id="laes_LeaseLiabilityToBePaidYearThree" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="LeaseLiabilityToBePaidYearFour" id="laes_LeaseLiabilityToBePaidYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="LeaseLiabilityToBePaidAfterYearFour" id="laes_LeaseLiabilityToBePaidAfterYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour" id="laes_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="RecoverableAdvancesMember" id="laes_RecoverableAdvancesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PgeLoansMember" id="laes_PgeLoansMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BpifranceInnovationLoanMember" id="laes_BpifranceInnovationLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BpifranceInnovationRDLoanMember" id="laes_BpifranceInnovationRDLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RecoverableAdvancesInnovationMember" id="laes_RecoverableAdvancesInnovationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RecoverableAdvancesBelicimProjectMember" id="laes_RecoverableAdvancesBelicimProjectMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DebtInstrumentNumberOfInstallmentsInDebtDisbursement" id="laes_DebtInstrumentNumberOfInstallmentsInDebtDisbursement" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DebtInstrumentNumberOfEqualQuarterlyInstallmentsDebtRepayment" id="laes_DebtInstrumentNumberOfEqualQuarterlyInstallmentsDebtRepayment" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DeferredGrantIncomeCurrent" id="laes_DeferredGrantIncomeCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PgeLoanCicLyonnaiseDeBanqueMember" id="laes_PgeLoanCicLyonnaiseDeBanqueMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PgeSoutienInnovationLoanBpifranceMember" id="laes_PgeSoutienInnovationLoanBpifranceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BnpParibasMember" id="laes_BnpParibasMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ImpactsOfOngoingConflictsAndRegulatoryChangesTextBlock" id="laes_ImpactsOfOngoingConflictsAndRegulatoryChangesTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScheduleOfSubsidiaryTableTextBlock" id="laes_ScheduleOfSubsidiaryTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="BasisOfPresentationAbstract" id="laes_BasisOfPresentationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AllowanceForCreditLossesPolicyTextBlock" id="laes_AllowanceForCreditLossesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AvailableForSaleDebtSecuritiesPolicyTextBlock" id="laes_AvailableForSaleDebtSecuritiesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ContractAssetPolicyTextBlock" id="laes_ContractAssetPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ContractLiabilityPolicyTextBlock" id="laes_ContractLiabilityPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="InvestmentsInSimpleAgreementsForFutureEquityPolicyTextBlock" id="laes_InvestmentsInSimpleAgreementsForFutureEquityPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="InvestmentsInUnconsolidatedAffiliatesAndUnconsolidatedRelatedPartyAffiliatesPolicyTextBlock" id="laes_InvestmentsInUnconsolidatedAffiliatesAndUnconsolidatedRelatedPartyAffiliatesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ManagedInvestmentAccountsPolicyTextBlock" id="laes_ManagedInvestmentAccountsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="SealsqCorpMember" id="laes_SealsqCorpMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DefinedBenefitPlanNumberOfPlans" id="laes_DefinedBenefitPlanNumberOfPlans" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ThresholdPercentageOfDiscountRateThatWouldMateriallyAffectProjectedBenefitObligation" id="laes_ThresholdPercentageOfDiscountRateThatWouldMateriallyAffectProjectedBenefitObligation" type="xbrli:pureItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="MultinationalElectronicsContractManufacturingCompanyMember" id="laes_MultinationalElectronicsContractManufacturingCompanyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="InternationalDigitalSecurityCompanyMember" id="laes_InternationalDigitalSecurityCompanyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="InternationalDistributorOfSemiconductorsElectronicsMember" id="laes_InternationalDistributorOfSemiconductorsElectronicsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="InternationalCablesDesignerAndManufacturerMember" id="laes_InternationalCablesDesignerAndManufacturerMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ConcentrationRiskCustomerCreditRiskAccountsReceivableMaximumExposure" id="laes_ConcentrationRiskCustomerCreditRiskAccountsReceivableMaximumExposure" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="InvestmentsInSubsidiaries" id="laes_InvestmentsInSubsidiaries" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="SealsqJapanKkMember" id="laes_SealsqJapanKkMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NonoperatingIncome" id="laes_NonoperatingIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="QuantixEdgeSecurityS.lMember" id="laes_QuantixEdgeSecurityS.lMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="WisekeyUsaIncMember" id="laes_WisekeyUsaIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NonoperatingIncomeAbstract" id="laes_NonoperatingIncomeAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NonoperatingIncomeTextBlock" id="laes_NonoperatingIncomeTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NonoperatingExpenseAbstract" id="laes_NonoperatingExpenseAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NonoperatingExpenseTextBlock" id="laes_NonoperatingExpenseTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScheduleOfNonoperatingIncomeTableTextBlock" id="laes_ScheduleOfNonoperatingIncomeTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ScheduleOfNonoperatingExpenseTableTextBlock" id="laes_ScheduleOfNonoperatingExpenseTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="UnrealizedGainOnInvestments" id="laes_UnrealizedGainOnInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="FinancialIncome" id="laes_FinancialIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="GainOnExtinguishmentOfDebt" id="laes_GainOnExtinguishmentOfDebt" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="IncomeTaxRateReconciliationChangeInTaxLossCarryforwardsAmount" id="laes_IncomeTaxRateReconciliationChangeInTaxLossCarryforwardsAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IncomeTaxRateReconciliationChangeInLossCarryforwardsInRelationToDebtRemissionAmount" id="laes_IncomeTaxRateReconciliationChangeInLossCarryforwardsInRelationToDebtRemissionAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="IncomeTaxReconciliationTaxExemptIncomeOrNondeductibleExpenseAmount" id="laes_IncomeTaxReconciliationTaxExemptIncomeOrNondeductibleExpenseAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DeferredTaxAssetsLossCarryforwardsUsedForDebtRemission" id="laes_DeferredTaxAssetsLossCarryforwardsUsedForDebtRemission" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DeferredTaxLiabilitiesBusinessCombination" id="laes_DeferredTaxLiabilitiesBusinessCombination" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="TaxExpirationPeriodAxis" id="laes_TaxExpirationPeriodAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TaxExpirationPeriodDomain" id="laes_TaxExpirationPeriodDomain" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OperatingLossCarryforwardsExpiringInYear2029Member" id="laes_OperatingLossCarryforwardsExpiringInYear2029Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OperatingLossCarryforwardsExpiringInYear2030Member" id="laes_OperatingLossCarryforwardsExpiringInYear2030Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OperatingLossCarryforwardsExpiringInYear2031Member" id="laes_OperatingLossCarryforwardsExpiringInYear2031Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OperatingLossCarryforwardsExpiringInYear2032Member" id="laes_OperatingLossCarryforwardsExpiringInYear2032Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OperatingLossCarryforwardsExpiringInYear2045Member" id="laes_OperatingLossCarryforwardsExpiringInYear2045Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OperatingLossCarryforwardsSubjectToExpiration" id="laes_OperatingLossCarryforwardsSubjectToExpiration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="OperatingLossCarryforwardsNotSubjectToExpiration" id="laes_OperatingLossCarryforwardsNotSubjectToExpiration" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ApplicationSpecificIntegratedCircuitMember" id="laes_ApplicationSpecificIntegratedCircuitMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="OtherSegmentDisclosureAbstract" id="laes_OtherSegmentDisclosureAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DebtRemissionAgreementMember" id="laes_DebtRemissionAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="RepaymentOfDebtRemission" id="laes_RepaymentOfDebtRemission" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AsicDesignMember" id="laes_AsicDesignMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="StandardAssuranceTypeWarrantTerm" id="laes_StandardAssuranceTypeWarrantTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AsicProductionMember" id="laes_AsicProductionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SocialSecurityContributions" id="laes_SocialSecurityContributions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NetServiceCosts" id="laes_NetServiceCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="EmployeeRelatedCosts" id="laes_EmployeeRelatedCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DefinedBenefitPlanForeignCurrencyTranslationGainLoss" id="laes_DefinedBenefitPlanForeignCurrencyTranslationGainLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OtherComprehensiveIncomeLossDefinedBenefitPlanActuarialGainLossOnLiabilitiesReclassificationAdjustmentFromAociAfterTax" id="laes_OtherComprehensiveIncomeLossDefinedBenefitPlanActuarialGainLossOnLiabilitiesReclassificationAdjustmentFromAociAfterTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="OtherComprehensiveIncomeLossDefinedBenefitPlanActuarialGainLossOnAssetsReclassificationAdjustmentFromAociAfterTax" id="laes_OtherComprehensiveIncomeLossDefinedBenefitPlanActuarialGainLossOnAssetsReclassificationAdjustmentFromAociAfterTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="OtherComprehensiveIncomeLossDefinedBenefitPlanCurrencyTranslationAdjustmentReclassificationAdjustmentFromAociAfterTax" id="laes_OtherComprehensiveIncomeLossDefinedBenefitPlanCurrencyTranslationAdjustmentReclassificationAdjustmentFromAociAfterTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DefinedBenefitPlanTotalCashflow" id="laes_DefinedBenefitPlanTotalCashflow" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DefinedBenefitPlanBusinessCombination" id="laes_DefinedBenefitPlanBusinessCombination" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AccumulatedOtherComprehensiveIncomeLossIncreaseDecreaseFromLiabilityAfterTax" id="laes_AccumulatedOtherComprehensiveIncomeLossIncreaseDecreaseFromLiabilityAfterTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPlanIncreaseDecreaseFromAmortizationAfterTax" id="laes_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPlanIncreaseDecreaseFromAmortizationAfterTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPlanIncreaseFromAcquisitionsAfterTax" id="laes_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPlanIncreaseFromAcquisitionsAfterTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPlanIncreaseDecreaseFromCurrencyTranslationAdjustmentAfterTax" id="laes_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPlanIncreaseDecreaseFromCurrencyTranslationAdjustmentAfterTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DefinedBenefitPlanExpectedFutureEmployerContributionsYearTwo" id="laes_DefinedBenefitPlanExpectedFutureEmployerContributionsYearTwo" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DefinedBenefitPlanExpectedFutureEmployerContributionsYearThree" id="laes_DefinedBenefitPlanExpectedFutureEmployerContributionsYearThree" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DefinedBenefitPlanExpectedFutureEmployerContributionsYearFour" id="laes_DefinedBenefitPlanExpectedFutureEmployerContributionsYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DefinedBenefitPlanExpectedFutureEmployerContributionsYearFive" id="laes_DefinedBenefitPlanExpectedFutureEmployerContributionsYearFive" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DefinedBenefitPlanExpectedFutureEmployerContributionsAfterYearFiveForNextFiveYears" id="laes_DefinedBenefitPlanExpectedFutureEmployerContributionsAfterYearFiveForNextFiveYears" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ScheduleOfPersonnelCostsTableTextBlock" id="laes_ScheduleOfPersonnelCostsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NumberOfPensionPlans" id="laes_NumberOfPensionPlans" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="DefinedBenefitPlanAcquisitionForeignCurrencyTranslationGainLoss" id="laes_DefinedBenefitPlanAcquisitionForeignCurrencyTranslationGainLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PrivateWarrantsMember" id="laes_PrivateWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PreFundedWarrantsMember" id="laes_PreFundedWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ClassDWarrantsMember" id="laes_ClassDWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ClassCWarrantsMember" id="laes_ClassCWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CommonStockCapitalValueReservedForFutureIssuance" id="laes_CommonStockCapitalValueReservedForFutureIssuance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="CommonStockNumberOfSharesAvailableForIssuance" id="laes_CommonStockNumberOfSharesAvailableForIssuance" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="NumberOfWarrantsAccompaniedWithEachShare" id="laes_NumberOfWarrantsAccompaniedWithEachShare" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="AdjustmentsRelatedToStockIssuanceCosts" id="laes_AdjustmentsRelatedToStockIssuanceCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ClassaWarrantsMember" id="laes_ClassaWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ClassBWarrantsMember" id="laes_ClassBWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DefinedBenefitPlanBenefitObligationBenefitsPaidNet" id="laes_DefinedBenefitPlanBenefitObligationBenefitsPaidNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DepreciationOfLeaseBuildingAndAssetsNetOfCashPaid" id="laes_DepreciationOfLeaseBuildingAndAssetsNetOfCashPaid" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="OtherIncomeOperating" id="laes_OtherIncomeOperating" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="AssetsFromOtherOperatingSegmentsIncludingGoodwill" id="laes_AssetsFromOtherOperatingSegmentsIncludingGoodwill" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="BusinessCombinationConsiderationTransferredEquityInterestSharesIssuedValue" id="laes_BusinessCombinationConsiderationTransferredEquityInterestSharesIssuedValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="WisekeyAndItsAffiliatesMember" id="laes_WisekeyAndItsAffiliatesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LegalMattersAndContingenciesAbstract" id="laes_LegalMattersAndContingenciesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="StockIssuedDuringPeriodValueStockOptionsExercisedAndAcquisitionOfCommonStockForTaxWithholdingObligations" id="laes_StockIssuedDuringPeriodValueStockOptionsExercisedAndAcquisitionOfCommonStockForTaxWithholdingObligations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="StockIssuedDuringPeriodSharesStockOptionsExercisedAndAcquisitionOfCommonStockForTaxWithholdingObligations" id="laes_StockIssuedDuringPeriodSharesStockOptionsExercisedAndAcquisitionOfCommonStockForTaxWithholdingObligations" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="IncreaseDecreaseInOtherCurrentLiabilitiesExcludingStockBasedCompensationLiability" id="laes_IncreaseDecreaseInOtherCurrentLiabilitiesExcludingStockBasedCompensationLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="BusinessCombinationRecognizedAssetAcquiredPreexistingIntangibleAssets" id="laes_BusinessCombinationRecognizedAssetAcquiredPreexistingIntangibleAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="GoodwillAccumulatedTranslationAdjustment" id="laes_GoodwillAccumulatedTranslationAdjustment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="LongTermDebtMaturityAfterYearFour" id="laes_LongTermDebtMaturityAfterYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="NumberOfVotesPerShare" id="laes_NumberOfVotesPerShare" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="PercentageOfVotingPower" id="laes_PercentageOfVotingPower" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="DividendsPerShare" id="laes_DividendsPerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DistributionsPerShare" id="laes_DistributionsPerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="PercentageOfVotingPowerRequiredForPresentInPeronOrRepresentedByProxy" id="laes_PercentageOfVotingPowerRequiredForPresentInPeronOrRepresentedByProxy" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="DividendsPerShareNumberOfTimesGreaterThanOrdinaryShares" id="laes_DividendsPerShareNumberOfTimesGreaterThanOrdinaryShares" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="DistributionPerShareNumberOfTimesGreaterThanOrdinaryShares" id="laes_DistributionPerShareNumberOfTimesGreaterThanOrdinaryShares" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="RedemptionOwnershipThresholdPercentage" id="laes_RedemptionOwnershipThresholdPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NumberOfSharesIssuableInCaseOfRedemption" id="laes_NumberOfSharesIssuableInCaseOfRedemption" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="EffectiveIncomeTaxRateReconciliationChangesInTaxLossCarryforwardsFromAcquisitionAmount" id="laes_EffectiveIncomeTaxRateReconciliationChangesInTaxLossCarryforwardsFromAcquisitionAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="EffectiveIncomeTaxRateReconciliationStateIncomeTaxesAmount" id="laes_EffectiveIncomeTaxRateReconciliationStateIncomeTaxesAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DecreaseIncreaseInGovernmentAssistance" id="laes_DecreaseIncreaseInGovernmentAssistance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ProposedAcquisitionOwnershipPercentage" id="laes_ProposedAcquisitionOwnershipPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ProposedAcquisitionCashPurchasePrice" id="laes_ProposedAcquisitionCashPurchasePrice" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ProposedAcquisitionConsiderationTransferredLiabilitiesIncurred" id="laes_ProposedAcquisitionConsiderationTransferredLiabilitiesIncurred" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PlannedCapitalIncreaseAmount" id="laes_PlannedCapitalIncreaseAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ExclusivityPeriodDuration" id="laes_ExclusivityPeriodDuration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="NumberOfWarrantsExercised" id="laes_NumberOfWarrantsExercised" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ClassEWarrantsMember" id="laes_ClassEWarrantsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
</xsd:schema>
