Cleanroom Process Engineer – LNOI/LTOI Photonics

Luxtelligence Sa; Lausanne; Sur place; CHF 90 000 - 130 000; Plein temps

Résumé du poste

Luxtelligence SA, Lausanne, Switzerland, is seeking a Cleanroom Process Engineer to support MPW/DPW production for thin-film LiNbO3 and LiTaO3 photonic ICs. You will execute runs, maintain documentation, and resolve in‑line issues, with opportunities to grow into PDK development and process engineering roles.

The role emphasizes hands-on cleanroom work, data analysis, and collaboration with senior engineers to optimize fabrication processes and ensure design-to-fabrication compatibility.

Qualifications

• BSc or MSc in physics, materials science, microengineering, electrical engineering or a related field.
• 1–3 years of hands-on cleanroom experience (counts if gained during master's thesis or PhD).
• Working knowledge of core cleanroom processes: photolithography, dry and wet etching, thin-film deposition, metallization and lift-off, cleaning.
• Ability to follow a run card rigorously, with strong attention to detail.
• Basic data analysis skills (Excel, Python or MATLAB).

Responsabilités

• Execute MPW/DPW runs in the cleanroom by following the run card and customer design: lithography, etching, deposition, metallization, cladding, cleaning and back-end steps.
• Operate cleanroom equipment autonomously, respecting safety and contamination-control rules.
• Troubleshoot process and tool problems independently: identify root cause, propose and apply a solution, and escalate when needed.
• Document each run thoroughly: process parameters, deviations, inspection results and corrective actions.
• Perform design checks and verify design-to-fabrication compatibility.
• Support the optimization of the process flow for LNOI400 and LTOI300 stacks, including the upgrade to double metallization and RF termination.
• Contribute to the development of PDK building blocks and their integration in a scalable fabrication process.
• Take part in R&D on new nanofabrication processes and PDK components, under the guidance of senior engineers.
• Perform in-line and end-of-line metrology on MPW wafers (SEM, AFM, profilometry, ellipsometry, optical inspection).
• Carry out device testing and data analysis for quality control of MPW runs.
• Support the statistical analysis of metrology and PDK measurement data (process control monitors, wafer uniformity, yield).
• Keep process records, travelers and measurement data complete and traceable.
• Support the PDK in EDA software in collaboration with the design team.
• Provide technical support to customers, project management and grants.

Connaissances

Cleanroom experience

Data analysis

Formation

BSc or MSc in physics, materials science, microengineering, electrical engineering or a related field

Outils

Excel

Python

MATLAB

Description du poste

Luxtelligence SA, Lausanne, Switzerland, is seeking a Cleanroom Process Engineer to support MPW/DPW production for thin-film LiNbO3 and LiTaO3 photonic ICs. You will execute runs, maintain documentation, and resolve in‑line issues, with opportunities to grow into PDK development and process engineering roles.

The role emphasizes hands-on cleanroom work, data analysis, and collaboration with senior engineers to optimize fabrication processes and ensure design-to-fabrication compatibility.