💼 Full-Time Position

Defect Management Engineer

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Onsemi
📍 Bucheon-si, Gyeonggi-do, South Korea
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Location
Bucheon-si, South Korea
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Posted
June 04, 2026
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Type
Full-Time
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Full-Time Opportunity: This is a permanent, full-time position with a competitive package and real career growth potential.

Job Description

This role serves as a core technical leader responsible for end‑to‑end defect engineering—from advanced SiC defect reduction and AI‑based inspection operations to SPC‑driven yield and reliability improvement—bridging UPS, Defect Management, and Fab organizations from technology development through mass production.


Key Responsibilities & Scope


(1) SiC Technology Advancement and New Defect Mode Improvement

  • Defect density reduction activities for various onsemi SiC products, including
    SiC MOSFETs, Super Junction structures, multi‑epitaxial growth, and Trench Gate devices
  • Root cause analysis and improvement activities for surface defects, trench‑inside defects, sub‑CD micro defects, and Killer / Slow Killer defects

    • (2) ADC & Klarity Operation and Production / VOG Management

  • Production operation of AI‑based Defect Classification (ADC) systems
  • ADC retraining, critical step monitoring, and troubleshooting
  • De...