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onsemi

Semiconductors for intelligent power and sensing

Senior SiC EPD Engineer

Process EngineeringConfirmed live in the last 24 hours
Full-timeBucheon-si, Gyeonggi-do, South KoreaNo salary listedIn-person

About the Job

Requirements

  • A master's degree or higher in Engineering, including Electrical Engineering, Materials Science, Physics, Semiconductor Engineering, or a related field.
  • Strong understanding of material science and device physics, including semiconductor fabrication and electrical characterization principles.
  • Solid experience in SiC or high-voltage silicon device or process development, yield engineering, or defect analysis.
  • Strong analytical and problem-solving skills, with the ability to independently drive complex technical issues.
  • Strong written and verbal communication skills in English for global collaboration.
  • Ability to maintain an open mindset, communicate actively, and share technical information effectively across teams.
  • Demonstrated technical leadership or mentoring experience.

Responsibilities

  • Develop new products on technologies within their development phase, identify and address device and process weaknesses in early manufacturing stages, analyze and reduce epitaxial and material-related defects in SiC technologies, and enable high yield, cost competitiveness, and robust device performance for next-generation SiC power MOSFETs.
  • Plan, manage, and execute engineering lots and design of experiments (DOE) activities, ensuring timely data generation and decision-making.
  • Act as the SiC process integration lead engineer for device development, from technology definition to production ramp.
  • Perform yield analysis related to SiC material defects and fab-induced defects, including epitaxial-related and process-induced failures.
  • Drive cost and yield analysis for SiC technologies, identifying major cost contributors and yield limiters.
  • Provide advanced technical support for production issues, including root-cause analysis of yield and reliability excursions.
  • Lead technology computer-aided design (TCAD) simulations to verify and optimize silicon and SiC device technologies, including electrical performance and process sensitivity.
  • Lead cost-reduction and yield-improvement initiatives through defect reduction, process optimization, and design/process co-optimization.
  • Conduct correlation analysis between process control monitoring (PCM) electrical data and in-line process data to identify systematic issues and process sensitivities.
  • Use layout tools, including Cadence Virtuoso, to support device layout review, test structure definition, and design-process interaction analysis.
  • Collaborate with Device, Process, Yield, Reliability, Manufacturing, and external partners to ensure robust technology transfer and production sustainability.
  • Mentor junior engineers and contribute to organizational knowledge in SiC EPD and yield engineering.

Desired Qualifications

  • Hands-on experience with SiC epitaxial or material defect analysis and yield improvement.
  • Proficiency with TCAD simulation tools and statistical analysis methods, including design of experiments (DOE), statistical process control (SPC), and correlation analysis.
  • Experience with power MOSFET device layout and test structure design.
  • Prior experience supporting technology ramp-up or high-volume manufacturing.

About the Company

onsemi

Semiconductors for intelligent power and sensing

onsemi designs and manufactures semiconductors with a focus on intelligent power and sensing technologies for automotive and industrial markets. Its products include power management ICs and sensors that regulate energy, monitor conditions, and provide control signals for EVs, ADAS, factory automation, robotics, and energy infrastructure. The company differentiates itself by its specialized emphasis on intelligent power and sensing across both sectors and through its direct OEM relationships and global distributor network. Its goal is to improve energy efficiency and enable smarter, more capable systems for electrification, autonomy, and sustainable energy solutions.

Company size
10,001+
Company stage
IPO
Headquarters
Scottsdale, AZ
Founded
1999

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