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Course contents

  • How to Use This Course
  • DFT Metrics Reference
  • DFT Glossary
  • Reading Path
  • Scan Fundamentals61
  • Compression & Diagnosis61
  • ATPG & Pattern Generation61
  • MBIST & LBIST61
  • Boundary Scan & JTAG61
  • Test Timing & Power61
  • DFT Physical Integration61
  • DFT Interview Prep61
    • DFT Whiteboard Framework
    • Scenario: Coverage Storm
    • Scenario: Silicon Mismatch
    • DFT Interview Q&A Bank
    • DFT Interview Prep: Tricky Q&A
  • DFT / ATPG Cheatsheet
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‹Design for Test
  1. Topics
  2. Design for Test
  3. DFT Interview Prep

DFT / ATPG · All levels

DFT Interview Prep

Whiteboard-ready DFT reasoning: scan architecture, coverage debates, silicon mismatch triage, and senior Q&A.

  • 5topics
  • 61lessons

Topics in this section

  1. 1DFT Whiteboard Framework15 lessons
    • DFT Whiteboard Framework: Mechanism
    • DFT Whiteboard Framework: Inputs & Outputs
    • DFT Whiteboard Framework: Reports & Metrics
    • DFT Whiteboard Framework: Debug Playbook
    • DFT Whiteboard Framework: Worked Example
    • DFT Whiteboard Framework: Pitfalls & Red Flags
    • DFT Whiteboard Framework: Interview Drills
    • DFT Whiteboard Framework: Review Checklist
    • DFT Whiteboard Framework: Theory Deep Dive
    • DFT Whiteboard Framework: Design Space
    • DFT Whiteboard Framework: Expanded Case Study
    • DFT Whiteboard Framework: Step-by-Step Walkthrough
    • DFT Whiteboard Framework: Comparison Matrix
    • DFT Whiteboard Framework: Software / Programmer View
    • DFT Whiteboard Framework: Silicon PPA Impact
  2. 2Scenario: Coverage Storm15 lessons
    • Scenario: Coverage Storm: Mechanism
    • Scenario: Coverage Storm: Inputs & Outputs
    • Scenario: Coverage Storm: Reports & Metrics
    • Scenario: Coverage Storm: Debug Playbook
    • Scenario: Coverage Storm: Worked Example
    • Scenario: Coverage Storm: Pitfalls & Red Flags
    • Scenario: Coverage Storm: Interview Drills
    • Scenario: Coverage Storm: Review Checklist
    • Scenario: Coverage Storm: Theory Deep Dive
    • Scenario: Coverage Storm: Design Space
    • Scenario: Coverage Storm: Expanded Case Study
    • Scenario: Coverage Storm: Step-by-Step Walkthrough
    • Scenario: Coverage Storm: Comparison Matrix
    • Scenario: Coverage Storm: Software / Programmer View
    • Scenario: Coverage Storm: Silicon PPA Impact
  3. 3Scenario: Silicon Mismatch15 lessons
    • Scenario: Silicon Mismatch: Mechanism
    • Scenario: Silicon Mismatch: Inputs & Outputs
    • Scenario: Silicon Mismatch: Reports & Metrics
    • Scenario: Silicon Mismatch: Debug Playbook
    • Scenario: Silicon Mismatch: Worked Example
    • Scenario: Silicon Mismatch: Pitfalls & Red Flags
    • Scenario: Silicon Mismatch: Interview Drills
    • Scenario: Silicon Mismatch: Review Checklist
    • Scenario: Silicon Mismatch: Theory Deep Dive
    • Scenario: Silicon Mismatch: Design Space
    • Scenario: Silicon Mismatch: Expanded Case Study
    • Scenario: Silicon Mismatch: Step-by-Step Walkthrough
    • Scenario: Silicon Mismatch: Comparison Matrix
    • Scenario: Silicon Mismatch: Software / Programmer View
    • Scenario: Silicon Mismatch: Silicon PPA Impact
  4. 4DFT Interview Q&A Bank15 lessons
    • DFT Interview Q&A Bank: Mechanism
    • DFT Interview Q&A Bank: Inputs & Outputs
    • DFT Interview Q&A Bank: Reports & Metrics
    • DFT Interview Q&A Bank: Debug Playbook
    • DFT Interview Q&A Bank: Worked Example
    • DFT Interview Q&A Bank: Pitfalls & Red Flags
    • DFT Interview Q&A Bank: Interview Drills
    • DFT Interview Q&A Bank: Review Checklist
    • DFT Interview Q&A Bank: Theory Deep Dive
    • DFT Interview Q&A Bank: Design Space
    • DFT Interview Q&A Bank: Expanded Case Study
    • DFT Interview Q&A Bank: Step-by-Step Walkthrough
    • DFT Interview Q&A Bank: Comparison Matrix
    • DFT Interview Q&A Bank: Software / Programmer View
    • DFT Interview Q&A Bank: Silicon PPA Impact
  5. 5DFT Interview Prep: Tricky Q&A1 lesson
On this page

    Section goal

    Whiteboard-ready DFT reasoning: scan architecture, coverage debates, silicon mismatch triage, and senior Q&A.

    How to study this section

    1. Start with the topic hub for architecture and ownership context.

    2. Use mechanism and reports pages to map assumptions to metrics.

    3. Use debug and worked examples for real closure patterns.

    4. Finish with checklist and silicon impact before release decisions.

    Topics

    1. dft-whiteboard-framework/ - DFT Whiteboard Framework

    2. scenario-coverage-storm/ - Scenario: Coverage Storm

    3. scenario-silicon-mismatch/ - Scenario: Silicon Mismatch

    4. dft-interview-qa-bank/ - DFT Interview Q&A Bank

    Related topics

    • DFT course hub

    DFT deep dive

    Senior DFT interviews test tradeoff judgment under imperfect data.

    Concept diagram

    Diagram
    INTERVIEW ANSWER LOOP
    
    state metric -> explain mechanism -> request evidence -> propose fix -> list regression

    Metric graph

    Diagram
    ANSWER QUALITY
    
    mechanism clarity + ownership clarity + regression discipline

    Reports and artifacts

    • whiteboard rubric

    • scenario scorecard

    • trap checklist

    • follow-up depth index

    Mini case study

    Candidate improved from tool-only answers to mechanism-first narratives by using metric->artifact->decision template.

    Debug branches

    • Always state assumptions

    • Name cross-team owners

    • Discuss risk and fallback plan

    Senior review question

    Ask: what evidence proves this DFT decision is safe for production?

    PreviousNext: DFT Whiteboard Framework

    Up next

    Up nextDFT Whiteboard Framework

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    See also

    • How to Use This Course
    • DFT Metrics Reference
    • DFT Glossary