Facet Inspection Process Engineer

Primary Duties & Responsibilities

• Monitors AOI process performance using SPC inspection yield defect pareto false-call/escape metrics and equipment health indicators; maintains process control and responds to excursions.

• Maintains facet inspection stepwise yield and investigates defect excursions nuisance defects false rejects and defect escapes; develops and implements corrective and preventive actions.

• Develops characterizes optimizes and releases AOI recipes for semiconductor laser facet inspection including lighting focus image acquisition inspection regions thresholds algorithms and defect classification criteria.

• Develops and maintains control plans OCAPs inspection specifications defect libraries golden samples acceptance criteria and recipe change-control documentation.

• Plans and executes engineering experiments gauge studies correlation studies and capability analyses to improve defect detection sensitivity repeatability reproducibility and discrimination between true defects and cosmetic variation.

• Correlates AOI results with manual microscope inspection downstream electrical/optical test reliability results and failure analysis to validate inspection effectiveness and reduce risk of defect escapes.

• Drives continuous improvement activities to reduce scrap and reinspection improve process capability and throughput reduce cycle time and cost and increase automated disposition where technically justified.

• Partners with Equipment Engineering and AOI suppliers to troubleshoot image quality motion optics illumination software recipe and hardware issues and to support qualification of equipment upgrades or new inspection capability.

• Supports new product introduction and process changes by defining inspection requirements establishing baseline defect signatures qualifying recipes and completing process readiness documentation.

• Trains Process Technicians Operators and Engineers on facet inspection methods AOI recipes defect classification reaction plans and proper handling of inspected material.

• Collaborates with Operations Equipment Engineering Process Integration Design Quality Reliability Failure Analysis and Supply Chain to achieve business unit and organizational objectives.

Education & Experience

Required Minimum Education: 4 year college degree (Bachelor or Equivalent)

Expected Minimum Years of Related Experience: 2 years

A bachelors degree in Electrical Engineering Mechanical Engineering Materials Science Physics Optics/Photonics Computer Engineering or a closely related science or engineering major and at least 2 years of relevant experience in semiconductor optoelectronics precision inspection machine vision or automated manufacturing; or a Master or PhD degree in a related field without industry experience.

Experience with semiconductor laser devices GaAs/InP processing optical microscopy machine vision or automated optical inspection is preferred.

Skills

• Working knowledge of semiconductor wafer/device processing engineering practices and manufacturing process control.

• Knowledge of automated optical inspection (AOI) machine vision optical microscopy image acquisition lighting focus and defect detection concepts.

• Ability to develop and optimize inspection recipes thresholds regions of interest defect classifiers and acceptance criteria for high-volume manufacturing.

• Knowledge of engineering statistics including SPC DOE process capability measurement system analysis gauge R&R correlation and hypothesis testing.

• Ability to analyze inspection images and large defect datasets build paretos and trend analyses and distinguish true process defects from inspection artifacts or nuisance calls.

• Experience with semiconductor laser facets cleaved/coated optical surfaces GaAs/InP devices or optoelectronic manufacturing is preferred.

• Strong structured problem-solving skills and ability to lead root-cause analysis and corrective actions across process equipment material and inspection contributors.

• Good written and oral communication skills including clear technical documentation and cross-functional communication.

• Fluency in MS Office suite and JMP or other statistical analysis software; experience with AOI software image analysis tools SQL/Python or manufacturing data systems is a plus.

Working Conditions

• Work in a class 100/1000 clean room for extended periods as required by manufacturing support activities.

• Wear full cleanroom attire (smock mask gloves etc.) and follow material-handling requirements for semiconductor devices.

• Work with and/or around manufacturing equipment optical inspection systems illumination sources and chemicals used in semiconductor processing in accordance with site EHS procedures.

Physical Requirements

• 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 and/or other applicable standards that may apply to the relevant roles and responsibilities within the Quality Management System and Environmental Management System.

CultureCommitment

Ensure adherence to companys 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.