Photolithography Engineer

Littelfuse is one of America’s Best Mid-Sized Companies (Forbes) and has been named one of the Best Places to Work in Illinois (Best Companies Group) for 11 consecutive years. With its global headquarters in Chicago, Illinois, USA, Littelfuse is a leading, global manufacturer of electronic components serving more than 100,000 end customers across industrial, transportation, and electronics end markets. We have more than 17,000 employees with operations in 15 countries. From semiconductors to sensors… switches to fuses and more… we produce billions of electronic components that help our customers empower a sustainable, connected, and safer world. In 2021, Littelfuse had net sales of $2.1 billion.

We are seeking a highly motivated and detail-oriented Photolithography Engineer to support and optimize photolithography processes in semiconductor manufacturing. This role involves developing robust lithography techniques, troubleshooting process issues, and collaborating with cross-functional teams to improve yield, throughput, and device performance.

About Your Role:
•    Develop, optimize, and sustain photolithography processes including resist coating, exposure, post-exposure bake, and development.
•    Characterize and control critical process parameters such as CD (Critical Dimension), overlay, and defectivity.
•    Collaborate with equipment vendors and internal teams to maintain and improve tool performance (steppers, track systems).
•    Conduct root cause analysis and implement corrective actions for process deviations and yield excursions.
•    Support new product introduction and technology transfers by developing process recipes and documentation.
•    Utilize statistical process control (SPC), DOE (Design of Experiments), and FMEA methodologies to ensure process stability and continuous improvement.
•    Maintain cleanroom protocols and ensure compliance with safety and quality standards.
•    Train technicians and operators on photolithography procedures and best practices.
 

 About You:

•    Bachelor’s or Master’s degree in Electrical Engineering, Materials Science, Physics, Chemical Engineering, or a related field.
•    2+ years of experience in semiconductor photolithography or related process engineering.
•    Hands-on experience with photolithography equipment (e.g., Ultratech Steppers, SVG coat & Develop tracks)
•    Strong understanding of photoresist chemistry, process integration, and defect analysis.
•    Familiarity with MES systems.
•    Excellent problem-solving, communication, and documentation skills.
•    Ability to work in a team-oriented environment.

Littelfuse is an equal opportunity employer committed to empowering every associate to make a difference — everywhere, every day.

We offer a comprehensive benefits package, including:
•    Medical, dental, and vision coverage
•    401(k) with company match and annual contribution
•    Paid time off and 11 holidays
•    $850 Lifestyle Spending Account
•    Tuition reimbursement (up to $20,000)
•    Lean Six Sigma certification and career development opportunities
•    Life, disability, and voluntary insurance options

Salary Range:

The salary offered will vary depending on your location, job-related skills, knowledge, and experience.