Photolithography Process Engineer – Advanced Packaging & MEMS

SkyWater Technology

Kissimmee (FL)

On-site

USD 114,000 - 171,000

Full time

6 days ago

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Job summary

SkyWater Technology in Florida is seeking a Lithography Engineer to develop, optimize, and transfer lithography processes for advanced packaging and MEMS/photonic devices. You will work with process and equipment engineers to ensure robust, manufacturable solutions that meet CD, overlay, and defectivity targets.

The role requires hands-on semiconductor fab experience, strong problem-solving, and data-driven process improvements.

Qualifications

Hands-on semiconductor fab processing experience with a strong understanding of lithography processes and equipment.
Experience with conventional photolithography processes including resist coating, soft bake, exposure, post-exposure bake, development, and resist strip.
Experience with a variety of lithography platforms and exposure technologies, including mask-based, direct-write, and maskless lithography.
Understanding of lithography process parameters including critical dimension, overlay, focus, dose, resist thickness, pattern fidelity, resolution, defectivity, and process window.

Responsibilities

Develop, optimize, transfer, and integrate lithography processes in a high-volume or advanced semiconductor manufacturing environment.
Develop and qualify robust, manufacturable photoresist and patterning processes for advanced packaging, MEMS, and photonic device applications.
Optimize lithography process conditions including resist coating, baking, exposure, development, descum, and associated process steps.
Develop and optimize exposure recipes to achieve required critical dimensions, pattern fidelity, overlay, and process margins.
Support process integration of lithography with deposition, etch, CMP, metallization, and dielectric processes.
Develop and maintain lithography process specifications, operating windows, process recipes, and documentation.
Utilize CD-SEM, optical metrology, profilometry, overlay metrology, defect inspection, and other characterization techniques to evaluate lithography performance.
Conduct DOE to identify key process parameters and establish robust operating windows.
Analyze process data to identify sources of variation, process marginalities, and opportunities for continuous improvement.
Monitor inline and end-of-line SPC charts for trends, excursions, and abnormal process behavior.
Investigate lithography-related defects, patterning failures, CD variation, overlay errors, and yield losses using structured problem-solving methodologies.
Partner with equipment and process engineers to troubleshoot lithography tool performance and improve equipment/process capability.
Support new product introduction, customer-specific process development, and technology transfers into manufacturing.
Collaborate with integration and device teams to understand lithography requirements and translate device designs into manufacturable process solutions.
Monitor electrical test parametrics and correlate lithography process performance with downstream device and package performance.
Develop process control strategies and recommend appropriate metrology and monitoring plans for lithography processes.
Prepare technical reports, presentations, process documentation, and development summaries for customers, colleagues, and management.
Participate in cross-functional problem-solving teams and lead lithography-related improvement projects.