Process Engineer - Photolithography Development

Primary Duties & Responsibilities

• Process Development: Design and develop photolithography processes including photoresist coating, soft baking, exposure, post-exposure baking, development, and hard baking.
• Tool Operation & Optimization: Operate and maintain photolithography equipment such as steppers/scanners (e.g., ASML, Nikon), coat/develop tracks (e.g., TEL, SVG), and metrology tools.
• Characterization & Analysis: Perform critical dimension (CD) measurements, overlay analysis, focus-exposure matrix studies (FEM), and defect inspections to evaluate process performance.
• Troubleshooting: Identify root causes of process issues and implement corrective actions to improve yield and reliability.
• Collaboration: Work with integration engineers, process engineers, and R&D to support technology development and transfers to manufacturing.
• Documentation: Write detailed process documentation, standard operating procedures (SOPs), and development reports.
• Continuous Improvement: Implement DOE (Design of Experiments), SPC (Statistical Process Control), and other methodologies to improve process robustness and reduce variability.

Education & Experience

• Minimum 4 yr. experience.
• Post-graduate or equivalent degree.

Skills

• In-depth knowledge of lithographic techniques, photoresist chemistry, and exposure systems
• Familiarity with semiconductor wafer fab operations (Manufacturing Execution System, process, and quality control, change management etc.) in a high-volume manufacturing environment is a plus.
• Proficiency in data analysis tools (e.g., JMP, MATLAB, Excel)
• Strong analytical and problem-solving skills
• Excellent communication and teamwork abilities
• GaAs/InP semiconductor processing or optoelectronics device experience preferred.
• Strong ability to drive actions and solutions through cross-functional teams.

Working Conditions

• Cleanroom environment requiring gowning procedures
• Fast-paced, team-oriented R&D and manufacturing settings

Physical Requirements

• 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

Safety Requirements

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.