Senior Metrology Process Engineer

• •Serve as the process owner for semiconductor metrology, developing, sustaining, and optimizing measurement methods for production and process development.
• •Develop and optimize measurement recipes for ellipsometry, spectroscopy, reflectometry, profilometry, WLI, Nanospec, and other metrology systems.
• •Develop measurement methods for film thickness, RI, surface topography, step height, feature dimensions, wafer bow, and other critical process parameters.
• •Establish appropriate measurement locations, sampling plans, and measurement strategies to ensure accurate and representative process data.
• •Apply SPC, DOE, and statistical analysis to monitor and improve measurement and manufacturing processes.
• •Work cross-functionally with photo, etch, thin films, wet process, integration, R&D, and production teams to develop measurement solutions and troubleshoot process issues.

• •Serve as the technical owner for ellipsometry, spectroscopy, reflectometry, profilometry, WLI, Nanospec, and associated metrology equipment.
• •Lead troubleshooting efforts for measurement excursions, equipment issues, recipe problems, and measurement correlation.
• •Support equipment qualification, calibration, preventive maintenance, tool matching, and continuous improvement activities.
• •Develop and maintain tool-to-tool correlation and matching strategies across metrology systems.
• •Work with equipment vendors and maintenance personnel to improve measurement performance, reliability, and uptime.
• •Support evaluation, selection, installation, and qualification of new metrology equipment.

• •Develop and execute MSA and Gage R&R studies to evaluate measurement repeatability, reproducibility, accuracy, and capability.
• •Evaluate tool-to-tool correlation, operator effects, measurement sensitivity, sampling strategies, and other sources of measurement variation.
• •Establish measurement specifications, control limits, and monitoring methods.
• •Ensure measurement systems are capable of supporting process specifications, SPC, process capability analysis, and manufacturing requirements.
• •Identify and reduce sources of measurement variation to improve confidence in manufacturing data.

• •Support automated recipe download and verification for production metrology equipment.
• •Work with automation and equipment teams to ensure correct recipe selection, parameter control, lot/wafer tracking, and data collection.
• •Develop and maintain measurement limits, alarms, and fault detection rules.
• •Review equipment and measurement data to identify trends, excursions, and early indicators of process or equipment issues.
• •Support automated data collection, reporting, traceability, and integration with MES and manufacturing systems.

• •Use metrology data to support root cause investigations, process characterization, yield improvement, and defect reduction.
• •Develop and implement improvements to increase measurement capability, reduce variation, and improve manufacturing control.
• •Support new product introductions, process qualifications, and technology transfers.
• •Develop and maintain measurement procedures, work instructions, specifications, control plans, and MSA documentation.
• •Train technicians and junior engineers on metrology equipment, measurement methods, troubleshooting, and best practices.

• •Strong hands-on experience with thin-film and dimensional metrology, including:
• •Ellipsometry
• •Spectroscopy
• •Reflectometry
• •Profilometry
• •WLI
• •Nanospec
• •Strong understanding of film thickness, RI, uniformity, surface topography, step height, and feature dimension measurements.
• •Experience developing and optimizing measurement recipes, methods, and sampling strategies.
• •Experience with MSA, Gage R&R, tool matching, measurement correlation, and measurement system capability.
• •Strong background in SPC, DOE, process capability, statistical analysis, and root cause analysis.
• •Proficient with JMP, Excel, and other data analysis tools.
• •Experience analyzing manufacturing data and developing automated reports and process monitoring methods.
• •Strong analytical, troubleshooting, documentation, and communication skills.

• +Direct GaAs and/or InP semiconductor manufacturing experience.
• +Experience with high-volume semiconductor manufacturing.
• +Experience with additional metrology technologies including CD-SEM, AFM, four-point probe, Surfscan, overlay, and automated defect inspection.
• +Experience with MES, automated recipe management, SECS/GEM, FDC, or other semiconductor manufacturing automation systems.
• +Experience with SQL, JMP scripting, Excel automation, Python, or similar tools for automated data analysis and reporting.
• +Familiarity with device-level impacts of measurement results and semiconductor process integration.

• •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 environment per semi-con