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Salary
$147k – $250k per year
Location
In office (Hopewell Junction)
Seniority
Senior · 10+ years exp

Confirmed on the employer's own hiring board on Nov 5, 2026. First seen by Alion on Jun 17, 2026. onsemi scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Onsemi is an American semiconductor company that was spun out of Motorola in 1999 and has since narrowed itself from a broad commodity chip supplier into a focused power and sensing business. Its silicon carbide and silicon power devices go into electric vehicle traction inverters, chargers and industrial drives, while its image sensors are used in automotive cameras and industrial vision, and it has deliberately exited lower-margin product lines to concentrate on these markets. Headquartered in Scottsdale, Arizona and listed on Nasdaq, it owns its own silicon carbide substrate manufacturing to secure supply.

onsemi is seeking a highly motivated and experienced Senior Engineer - Lithography at onsemi's premier 300mm manufacturing facility in Hopewell Junction, East Fishkill, New York; you will focus on delivering robust and efficient Lithography manufacturing processes using problem-solving skills and data analytics. Each day, you will be challenged by working on a diverse set of tools with a world-class team.

Responsibilities:

  • Understand and optimize processes and procedures in the Lithography area.
  • Plan and execute experiments for new technologies and processes.
  • Drive activities such as yield and reliability improvements, throughput optimization, cost reduction, and safety improvements.
  • Perform advanced data analysis.
  • Understand and apply SPC principles to establish and sustain robust processes.
  • Respond in an appropriate and timely manner to out-of-control process conditions.
  • Manage the disposition of non-conforming material.
  • Prioritize production support and other responsibilities.
  • Generate written process instruction specifications.
  • Communicate established processing procedures with production operators and process technicians.
  • Contribute to factory operational efficiency by supporting operators, technicians, and engineers.

Education/Experience:

  • Bachelor’s or Master’s degree in Chemical Engineering, Electrical Engineering, Mechanical Engineering, Materials Science, Physics, or a related degree
  • 10+ years of direct Lithography work experience in the semiconductor industry preferred.

Skills:

  • Direct experience with ASML or TEL equipment and processes is preferred.
  • Fundamental understanding of semiconductor device physics.
  • Demonstrated ability to apply and practice SPC and DOE methodology
  • Demonstrated experience with continuous fab improvement in yield, throughput, and cost reduction, preferably in a lean manufacturing environment.
  • Fundamental understanding of standard metrology, inspection, and failure analysis methods, and their applications
  • Advanced data analysis skills. The ability to quickly learn and apply various software applications is required.
  • Energetic, self-motivated, and results-oriented attitude with a strong attention to detail
  • Approachable with an internal customer focus, integrity, and initiative
  • Articulate written and verbal communication skills.
  • Demonstrated track record of being able to work well in a team environment, as well as the drive and desire to provide hands-on support for the site’s operators, technicians, and engineers when needed.

Salary: onsemi is excited to share the base salary range for this position is $147,000 to $250,000, exclusive of fringe benefits or potential bonuses. The final pay rate for the successful candidate will depend on geographic location, skills, education, experience, and/or consideration of internal equity of our current team members. We also offer a competitive benefits package. https://www.onsemi.com/site/pdf/Benefits-Summary-USA.pdf

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