<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2024 Workiva-->
<!--r:0dd8ba53-9fb0-49bb-8c7f-5942c9409d7e,g:8f0b60d1-239f-4598-bdc4-35ca73d5e809-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:amkr="http://www.amkor.com/20240630" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:dtr-types1="http://www.xbrl.org/dtr/type/2020-01-21" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2022-03-31" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.amkor.com/20240630">
  <xs:import namespace="http://fasb.org/srt/2024" schemaLocation="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd"/>
  <xs:import namespace="http://fasb.org/us-gaap/2024" schemaLocation="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd"/>
  <xs:import namespace="http://www.w3.org/1999/xlink" schemaLocation="http://www.xbrl.org/2003/xlink-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2020-01-21" schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2022-03-31" schemaLocation="https://www.xbrl.org/dtr/type/2022-03-31/types.xsd"/>
  <xs:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/country/2024" schemaLocation="https://xbrl.sec.gov/country/2024/country-2024.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/currency/2024" schemaLocation="https://xbrl.sec.gov/currency/2024/currency-2024.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2024" schemaLocation="https://xbrl.sec.gov/dei/2024/dei-2024.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/ecd/2024" schemaLocation="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd"/>
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="amkr-20240630_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="amkr-20240630_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="amkr-20240630_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="amkr-20240630_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="COVERPAGE" roleURI="http://www.amkor.com/role/COVERPAGE">
        <link:definition>0000001 - Document - COVER PAGE</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited" roleURI="http://www.amkor.com/role/CONSOLIDATEDSTATEMENTSOFINCOMEUnaudited">
        <link:definition>9952151 - Statement - CONSOLIDATED STATEMENTS OF INCOME (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited" roleURI="http://www.amkor.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited">
        <link:definition>9952152 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDBALANCESHEETSUnaudited" roleURI="http://www.amkor.com/role/CONSOLIDATEDBALANCESHEETSUnaudited">
        <link:definition>9952153 - Statement - CONSOLIDATED BALANCE SHEETS (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDBALANCESHEETSUnauditedParenthetical" roleURI="http://www.amkor.com/role/CONSOLIDATEDBALANCESHEETSUnauditedParenthetical">
        <link:definition>9952154 - Statement - CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITYUnaudited" roleURI="http://www.amkor.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITYUnaudited">
        <link:definition>9952155 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS&#8217; EQUITY (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITYUnauditedParenthetical" roleURI="http://www.amkor.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITYUnauditedParenthetical">
        <link:definition>9952156 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS&#8217; EQUITY (Unaudited) (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited" roleURI="http://www.amkor.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited">
        <link:definition>9952157 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InterimFinancialStatements" roleURI="http://www.amkor.com/role/InterimFinancialStatements">
        <link:definition>9952158 - Disclosure - Interim Financial Statements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetSalesbyProductGroupandEndMarket" roleURI="http://www.amkor.com/role/NetSalesbyProductGroupandEndMarket">
        <link:definition>9952159 - Disclosure - Net Sales by Product Group and End Market</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherIncomeandExpense" roleURI="http://www.amkor.com/role/OtherIncomeandExpense">
        <link:definition>9952160 - Disclosure - Other Income and Expense</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxes" roleURI="http://www.amkor.com/role/IncomeTaxes">
        <link:definition>9952161 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShare" roleURI="http://www.amkor.com/role/EarningsPerShare">
        <link:definition>9952162 - Disclosure - Earnings Per Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccumulatedOtherComprehensiveIncomeLoss" roleURI="http://www.amkor.com/role/AccumulatedOtherComprehensiveIncomeLoss">
        <link:definition>9952163 - Disclosure - Accumulated Other Comprehensive Income (Loss)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Investments" roleURI="http://www.amkor.com/role/Investments">
        <link:definition>9952164 - Disclosure - Investments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FactoringofAccountsReceivable" roleURI="http://www.amkor.com/role/FactoringofAccountsReceivable">
        <link:definition>9952165 - Disclosure - Factoring of Accounts Receivable</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyPlantandEquipment" roleURI="http://www.amkor.com/role/PropertyPlantandEquipment">
        <link:definition>9952166 - Disclosure - Property, Plant and Equipment</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccruedExpenses" roleURI="http://www.amkor.com/role/AccruedExpenses">
        <link:definition>9952167 - Disclosure - Accrued Expenses</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Debt" roleURI="http://www.amkor.com/role/Debt">
        <link:definition>9952168 - Disclosure - Debt</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PensionPlans" roleURI="http://www.amkor.com/role/PensionPlans">
        <link:definition>9952169 - Disclosure - Pension Plans</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Derivatives" roleURI="http://www.amkor.com/role/Derivatives">
        <link:definition>9952170 - Disclosure - Derivatives</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurements" roleURI="http://www.amkor.com/role/FairValueMeasurements">
        <link:definition>9952171 - Disclosure - Fair Value Measurements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingencies" roleURI="http://www.amkor.com/role/CommitmentsandContingencies">
        <link:definition>9952172 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InterimFinancialStatementsPolicies" roleURI="http://www.amkor.com/role/InterimFinancialStatementsPolicies">
        <link:definition>9954471 - Disclosure - Interim Financial Statements (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetSalesbyProductGroupandEndMarketTables" roleURI="http://www.amkor.com/role/NetSalesbyProductGroupandEndMarketTables">
        <link:definition>9954472 - Disclosure - Net Sales by Product Group and End Market (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherIncomeandExpenseTables" roleURI="http://www.amkor.com/role/OtherIncomeandExpenseTables">
        <link:definition>9954473 - Disclosure - Other Income and Expense (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShareTables" roleURI="http://www.amkor.com/role/EarningsPerShareTables">
        <link:definition>9954474 - Disclosure - Earnings Per Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccumulatedOtherComprehensiveIncomeLossTables" roleURI="http://www.amkor.com/role/AccumulatedOtherComprehensiveIncomeLossTables">
        <link:definition>9954475 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsTables" roleURI="http://www.amkor.com/role/InvestmentsTables">
        <link:definition>9954476 - Disclosure - Investments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyPlantandEquipmentTables" roleURI="http://www.amkor.com/role/PropertyPlantandEquipmentTables">
        <link:definition>9954477 - Disclosure - Property, Plant and Equipment (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccruedExpensesTables" roleURI="http://www.amkor.com/role/AccruedExpensesTables">
        <link:definition>9954478 - Disclosure - Accrued Expenses (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtTables" roleURI="http://www.amkor.com/role/DebtTables">
        <link:definition>9954479 - Disclosure - Debt (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PensionPlansTables" roleURI="http://www.amkor.com/role/PensionPlansTables">
        <link:definition>9954480 - Disclosure - Pension Plans (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesTables" roleURI="http://www.amkor.com/role/DerivativesTables">
        <link:definition>9954481 - Disclosure - Derivatives (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsTables" roleURI="http://www.amkor.com/role/FairValueMeasurementsTables">
        <link:definition>9954482 - Disclosure - Fair Value Measurements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InterimFinancialStatementsDetails" roleURI="http://www.amkor.com/role/InterimFinancialStatementsDetails">
        <link:definition>9954483 - Disclosure - Interim Financial Statements (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetSalesbyProductGroupandEndMarketProductGroupDetails" roleURI="http://www.amkor.com/role/NetSalesbyProductGroupandEndMarketProductGroupDetails">
        <link:definition>9954484 - Disclosure - Net Sales by Product Group and End Market - Product Group (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetSalesbyProductGroupandEndMarketEndMarketDetails" roleURI="http://www.amkor.com/role/NetSalesbyProductGroupandEndMarketEndMarketDetails">
        <link:definition>9954485 - Disclosure - Net Sales by Product Group and End Market - End Market (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="OtherIncomeandExpenseDetails" roleURI="http://www.amkor.com/role/OtherIncomeandExpenseDetails">
        <link:definition>9954486 - Disclosure - Other Income and Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesDetails" roleURI="http://www.amkor.com/role/IncomeTaxesDetails">
        <link:definition>9954487 - Disclosure - Income Taxes (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShareScheduleofcomputationofbasicanddilutedearningspershareDetails" roleURI="http://www.amkor.com/role/EarningsPerShareScheduleofcomputationofbasicanddilutedearningspershareDetails">
        <link:definition>9954488 - Disclosure - Earnings Per Share - Schedule of computation of basic and diluted earnings per share (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShareAdditionalInformationDetails" roleURI="http://www.amkor.com/role/EarningsPerShareAdditionalInformationDetails">
        <link:definition>9954489 - Disclosure - Earnings Per Share - Additional Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccumulatedOtherComprehensiveIncomeLossDetails" roleURI="http://www.amkor.com/role/AccumulatedOtherComprehensiveIncomeLossDetails">
        <link:definition>9954490 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsScheduleofCashEquivalentsandShorttermInvestmentsDetails" roleURI="http://www.amkor.com/role/InvestmentsScheduleofCashEquivalentsandShorttermInvestmentsDetails">
        <link:definition>9954491 - Disclosure - Investments - Schedule of Cash Equivalents, and Short term Investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsContractualMaturitiesofCashEquivalentsAndAvailableforSaleDebtInvestmentsDetails" roleURI="http://www.amkor.com/role/InvestmentsContractualMaturitiesofCashEquivalentsAndAvailableforSaleDebtInvestmentsDetails">
        <link:definition>9954492 - Disclosure - Investments - Contractual Maturities of Cash Equivalents And Available-for-Sale Debt Investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsNarrativeDetails" roleURI="http://www.amkor.com/role/InvestmentsNarrativeDetails">
        <link:definition>9954493 - Disclosure - Investments - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FactoringofAccountsReceivableDetails" roleURI="http://www.amkor.com/role/FactoringofAccountsReceivableDetails">
        <link:definition>9954494 - Disclosure - Factoring of Accounts Receivable (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyPlantandEquipmentScheduleofpropertyplantandequipmentDetails" roleURI="http://www.amkor.com/role/PropertyPlantandEquipmentScheduleofpropertyplantandequipmentDetails">
        <link:definition>9954495 - Disclosure - Property, Plant and Equipment - Schedule of property, plant and equipment (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyPlantandEquipmentScheduleofDepreciationExpenseDetails" roleURI="http://www.amkor.com/role/PropertyPlantandEquipmentScheduleofDepreciationExpenseDetails">
        <link:definition>9954496 - Disclosure - Property, Plant and Equipment - Schedule of Depreciation Expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyPlantandEquipmentNarrativeDetails" roleURI="http://www.amkor.com/role/PropertyPlantandEquipmentNarrativeDetails">
        <link:definition>9954497 - Disclosure - Property, Plant and Equipment - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccruedExpensesDetails" roleURI="http://www.amkor.com/role/AccruedExpensesDetails">
        <link:definition>9954498 - Disclosure - Accrued Expenses (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DebtDetails" roleURI="http://www.amkor.com/role/DebtDetails">
        <link:definition>9954499 - Disclosure - Debt (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PensionPlansScheduleofcomponentsofnetperiodicpensioncostDetails" roleURI="http://www.amkor.com/role/PensionPlansScheduleofcomponentsofnetperiodicpensioncostDetails">
        <link:definition>9954500 - Disclosure - Pension Plans - Schedule of components of net periodic pension cost (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PensionPlansScheduleofdefinedcontributionexpenseDetails" roleURI="http://www.amkor.com/role/PensionPlansScheduleofdefinedcontributionexpenseDetails">
        <link:definition>9954501 - Disclosure - Pension Plans - Schedule of defined contribution expense (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativesDetails" roleURI="http://www.amkor.com/role/DerivativesDetails">
        <link:definition>9954502 - Disclosure - Derivatives (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsDetails" roleURI="http://www.amkor.com/role/FairValueMeasurementsDetails">
        <link:definition>9954503 - Disclosure - Fair Value Measurements (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsandContingenciesDetails" roleURI="http://www.amkor.com/role/CommitmentsandContingenciesDetails">
        <link:definition>9954504 - Disclosure - Commitments and Contingencies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
  <xs:element id="amkr_SalesChannelCommunicationsMember" abstract="true" name="SalesChannelCommunicationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_SalesChannelConsumerGoodsMember" abstract="true" name="SalesChannelConsumerGoodsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_SalesChannelAutomotiveIndustrialAndOtherMember" abstract="true" name="SalesChannelAutomotiveIndustrialAndOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_IncreaseDecreaseOfDepreciationExpense" abstract="false" name="IncreaseDecreaseOfDepreciationExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="amkr_FactoringofAccountsReceivableAxis" abstract="true" name="FactoringofAccountsReceivableAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="amkr_LineOfCreditFacilityPercentageOfVariableBorrowings" abstract="false" name="LineOfCreditFacilityPercentageOfVariableBorrowings" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="amkr_DistributionChannelConcentrationRiskMember" abstract="true" name="DistributionChannelConcentrationRiskMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_TermLoanFixedRateAt3.95DueMay2027Member" abstract="true" name="TermLoanFixedRateAt3.95DueMay2027Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="amkr_TotalFactoredMember" abstract="true" name="TotalFactoredMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_SeniorSecuredRevolvingCreditFacilityDueMarch2027Member" abstract="true" name="SeniorSecuredRevolvingCreditFacilityDueMarch2027Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_PerformanceVestedRestrictedStockUnitsEPSMember" abstract="true" name="PerformanceVestedRestrictedStockUnitsEPSMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="amkr_TermLoanSOFRPlus0.75Due2025Member" abstract="true" name="TermLoanSOFRPlus0.75Due2025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="amkr_ShorttermtermloanvariablerateMember" abstract="true" name="ShorttermtermloanvariablerateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_RevolvingCreditFacilityDueDecember2024Member" abstract="true" name="RevolvingCreditFacilityDueDecember2024Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="amkr_TermLoansSOFRPlus1.40DueDecember2026Member" abstract="true" name="TermLoansSOFRPlus1.40DueDecember2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="amkr_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingInstallments" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingInstallments" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="amkr_FactoringFeesMember" abstract="true" name="FactoringFeesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_AccountsReceivableSoldwithoutRecourse" abstract="false" name="AccountsReceivableSoldwithoutRecourse" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="amkr_EarningsPerShareDataAbstract" abstract="true" name="EarningsPerShareDataAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="amkr_TokyoInterbankOfferedRateTIBORMember" abstract="true" name="TokyoInterbankOfferedRateTIBORMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_TestEquipmentMember" abstract="true" name="TestEquipmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="amkr_AdvancedProductsMember" abstract="true" name="AdvancedProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_TermLoanFixedRateAt1.85DueApril2024Member" abstract="true" name="TermLoanFixedRateAt1.85DueApril2024Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="amkr_PerformanceVestedRestrictedStockUnitsMember" abstract="true" name="PerformanceVestedRestrictedStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="amkr_FactoringOfAccountsReceivableTextBlock" abstract="false" name="FactoringOfAccountsReceivableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="amkr_PerformanceVestedRestrictedStockUnitsRTSRMember" abstract="true" name="PerformanceVestedRestrictedStockUnitsRTSRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="amkr_LongLivedAssetsTypeAxisAxis" abstract="true" name="LongLivedAssetsTypeAxisAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="amkr_CashEquivalentFairValueDisclosure" abstract="false" name="CashEquivalentFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="amkr_FactoringofAccountsReceivableDomain" abstract="true" name="FactoringofAccountsReceivableDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_SoftwareAndComputerEquipmentMember" abstract="true" name="SoftwareAndComputerEquipmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_CashEquivalentsGrossUnrealizedGains" abstract="false" name="CashEquivalentsGrossUnrealizedGains" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="amkr_SubsidiaryTermLoansMember" abstract="true" name="SubsidiaryTermLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_ProceedsFromSaleOfCashEquivalentInvestments" abstract="false" name="ProceedsFromSaleOfCashEquivalentInvestments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="amkr_TermLoanSOFRPlus0.95DueDecember2026Member" abstract="true" name="TermLoanSOFRPlus0.95DueDecember2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="amkr_ProceedsFromLongTermDebt" abstract="false" name="ProceedsFromLongTermDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="amkr_TimeVestedRestrictedStockUnitsMember" abstract="true" name="TimeVestedRestrictedStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="amkr_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfTotalAwardsGranted" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfTotalAwardsGranted" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="amkr_FactoringofAccountsReceivableLineItems" abstract="true" name="FactoringofAccountsReceivableLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="amkr_TermLoanFixedRateAt123DueDecember2026Member" abstract="true" name="TermLoanFixedRateAt123DueDecember2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_DebtSecuritiesAvailableForSaleAndCashEquivalentsFairValueDisclosure" abstract="false" name="DebtSecuritiesAvailableForSaleAndCashEquivalentsFairValueDisclosure" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="amkr_TermLoanFixedRateAt1.80DueDecember2028Member" abstract="true" name="TermLoanFixedRateAt1.80DueDecember2028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="amkr_SubsidiaryTermLoanAndRevolvingCreditFacilityMember" abstract="true" name="SubsidiaryTermLoanAndRevolvingCreditFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_LineOfCreditFacilityMaximumBorrowingCapacityBaseAmount" abstract="false" name="LineOfCreditFacilityMaximumBorrowingCapacityBaseAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="amkr_DebtInstrumentNumberOfAnnualBorrowingsMaximum" abstract="false" name="DebtInstrumentNumberOfAnnualBorrowingsMaximum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="amkr_DebtSecuritiesAvailableForSaleAndCashEquivalentsAmortizedCost" abstract="false" name="DebtSecuritiesAvailableForSaleAndCashEquivalentsAmortizedCost" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="amkr_LongLivedAssetsTypeAxisDomain" abstract="true" name="LongLivedAssetsTypeAxisDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="amkr_TermLoanFixedRateAt120DueDecember2025Member" abstract="true" name="TermLoanFixedRateAt120DueDecember2025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_TermLoanFixedRateAt159DueDecember2027Member" abstract="true" name="TermLoanFixedRateAt159DueDecember2027Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_Capitalexpenditurespayable" abstract="false" name="Capitalexpenditurespayable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="amkr_TermLoanSOFRPlus0.75DueJune2025Member" abstract="true" name="TermLoanSOFRPlus0.75DueJune2025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_FactoringofAccountsReceivableAbstract" abstract="true" name="FactoringofAccountsReceivableAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="amkr_TestEquipmentUsefulLivesMember" abstract="true" name="TestEquipmentUsefulLivesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="amkr_DebtSecuritiesAvailableForSaleAndCashEquivalentsAccumulatedGrossUnrealizedLossBeforeTax" abstract="false" name="DebtSecuritiesAvailableForSaleAndCashEquivalentsAccumulatedGrossUnrealizedLossBeforeTax" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="amkr_SalesChannelComputingMember" abstract="true" name="SalesChannelComputingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_MainstreamProductsMember" abstract="true" name="MainstreamProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_SeniorNotesDueSeptember2027Member" abstract="true" name="SeniorNotesDueSeptember2027Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_GielRuttenMember" abstract="true" name="GielRuttenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="amkr_FactoringofAccountsReceivableTable" abstract="true" name="FactoringofAccountsReceivableTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="amkr_OtherNonoperatingIncomeExpenseNet" abstract="false" name="OtherNonoperatingIncomeExpenseNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="amkr_DebtSecuritiesAvailableForSaleAndCashEquivalentsAccumulatedGrossUnrealizedGainBeforeTax" abstract="false" name="DebtSecuritiesAvailableForSaleAndCashEquivalentsAccumulatedGrossUnrealizedGainBeforeTax" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="amkr_CashEquivalentsGrossUnrealizedLosses" abstract="false" name="CashEquivalentsGrossUnrealizedLosses" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="amkr_TermLoanFixedRateat1.35DueDecember2024Member" abstract="true" name="TermLoanFixedRateat1.35DueDecember2024Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amkr_TermLoanFixedRateAt212DueDecember2028Member" abstract="true" name="TermLoanFixedRateAt212DueDecember2028Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
</xs:schema>
