Description

• Own and sustain metrology processes that support both production and new product development.
• Operate and maintain key metrology systems including ellipsometry, spectroscopic reflectometry, CD-SEM, AFM, Nanospec, particle inspection, and four-point probe.
• Monitor tool health and measurement stability through regular SPC and MSA reviews.
• Perform GR&R and correlation studies to ensure data accuracy and repeatability across tools and operators.
• Partner with process module owners (photo, etch, metallization, etc.) to define measurement plans and provide data-driven feedback for process optimization.
• Support daily production by reviewing metrology data, identifying trends, and troubleshooting excursions or out-of-control conditions.
• Develop and maintain calibration routines, control limits, and standard work procedures.
• Participate in cross-functional problem-solving efforts using structured methods such as DOE, FMEA, and 8D.
• Help define metrology requirements and control plans for new processes and technologies.
• Train technicians and junior engineers on tool operation, data interpretation, and measurement best practices.

• Bachelor's or Master's degree in Materials Science, Electrical Engineering, Physics, or a related field.
• Minimum 5 years of experience in a semiconductor fab, ideally working with GaAs, InP, or other compound semiconductor technologies.
• Experience linking metrology data to electrical or optical test performance.
• Participation in yield improvement, DOE, or continuous improvement programs.
• Experience evaluating and qualifying new metrology tools or software platforms.

• Strong background in at least several of the following:
  • Ellipsometry / reflectometry / profilometry
  • CD-SEM
  • AFM or Nanospec
  • Defect inspection systems
  • Four-point probe or sheet resistance measurement
• Hands-on experience implementing SPC and conducting MSA (GR&R, bias, linearity, and stability) for metrology equipment.
• Comfortable working with statistical tools such as JMP, Spotfire.
• Strong problem-solving, communication, and collaboration skills.
• Able to work effectively in a cleanroom and coordinate with multiple process areas.

• Will be exposed to areas where hand tools and power tools are being operated
• Will be exposed to areas where hazardous chemicals or gases are stored
• Ability to work in a cleanroom

• Work in a class 100/1000 clean room for extended periods
• Wear full cleanroom attire (smock, mask, etc.)
• Work with and/or around chemicals (such as solids and acids)
• Stand for up to 4 hours at a time
• Lift up to 16-30 Pounds
• Push/Pull up to 16-30 pounds
• Sit for up to 4 hours at a time

All employees are required to follow the site EHS procedures and Coherent Corp. Corporate EHS standards.

Quality and Environmental Responsibilities

Depending on location, this position may be responsible for the execution and maintenance of the ISO 9000, 9001, 14001 and/or other applicable standards that may apply to the relevant roles and responsibilities within the Quality Management System and Environmental Management System.

Culture Commitment

Ensure adherence to company's values (ICARE) in all aspects of your position at Coherent Corp.:

Integrity - Create an Environment of Trust

Collaboration - Innovate Through the Sharing of Ideas

Accountability - Own the Process and the Outcome

Respect - Recognize the Value in Everyone

Enthusiasm - Find a Sense of Purpose in Work

Coherent Corp. is an equal opportunity/affirmative action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.

If you need assistance or an accommodation due to a disability, you may contact us at talentacquisition@coherent.com .Coherent is a global leader in lasers, engineered materials and networking components. We are a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets. Coherent provides a comprehensive career development platform within an environment that challenges employees to perform at their best, while rewarding excellence and hard-work through a competitive compensation program. It's an exciting opportunity to work for a company that offers stability, longevity and growth. Come Join Us!

Note to recruiters and employment agencies: We will not pay for unsolicited resumes from recruiters and employment agencies unless we have a signed agreement and have required assistance, in writing, for a specific opening.We're looking for a Senior Process Engineer with a strong background in metrology for GaAs and InP compound semiconductor manufacturing. This role supports both high-volume production and new technology development. You'll be responsible for maintaining and improving measurement capabilities across the fab, ensuring consistent process control, and supporting yield improvement efforts.