Particle contamination control scientist | DELFT - Hybrid

Your working location will be Delft. You will be working in the Semicon Metrology Group on projects that focus on understanding, modelling, and mitigating (sub) micron particle contamination in high-tech semiconductor equipment. These projects range from conceptual development of new contamination control strategies to in-depth analysis of existing systems and processes.

Success in this role requires a strong analytical mindset, a solid understanding of physical principles related to particle behaviour (e.g. due to flow and electrostatic forces), and close collaboration with experts from various technical disciplines . Effective communication and teamwork are crucial, as you will need to articulate your findings and collaborate with colleagues from various disciplines to develop comprehensive solutions.

For our experimental research we have a number of state of the art world class experimental setups at our disposal, partially developed ourselves. Your work will integrate both experimental and numerical approaches, involving the design and execution of experiments to investigate particle release, transport and deposition, as well as the development of models to interpret results and predict system-level behaviour. Commonly used tools include engineering modelling environments like Mathcad, MATLAB, COMSOL and Python, which support both analytical and numerical analysis in contamination control studies.

Topics you may encounter include system-level contamination risk assessments, particle adhesion and release, flow- and/or electrostatically induced particle transport and impact of system dynamics.

See more of the TNO Unit High Tech Industry and the Semicon Metrology Group.

With a Master’s degree in a relevant technical field, such as physics, mechanical engineering, aerospace engineering, or mechatronics, you bring both a strong foundation in engineering principles and a deep interest in the behaviour of particles and materials in ultra-clean high-tech environments. You are eager to apply your knowledge to real-world challenges in the high tech and/or semiconductor equipment domain, particularly in the context of EUV/DUV lithography.
You combine hands-on experimental skills with a sharp analytical mindset, enabling you to design, execute, and interpret complex tests that reveal the mechanisms behind particle contamination and/or material degradation. You are comfortable navigating multidisciplinary environments, collaborating with experts across domains to develop practical, system-level solutions. A strong foundation in materials science, and experience with materials characterization / defect classification techniques (e.g., SEM, AFM, Optical inspection) is a plus.

In addition to your technical capabilities, you are proactive, accurate, and structured in your approach. You work well in multidisciplinary teams and communicate effectively with colleagues from diverse backgrounds. Strong communication and collaboration skills are essential, as you will work closely with multidisciplinary teams both within and outside TNO. Strong verbal and written communication skills in English are required.

Other knowledge and skills you bring to TNO:

• Master’s degree in a relevant field (e.g. physics, mechanical engineering, aerospace engineering or mechatronics).
• Knowledge of and at least 3 years of experience in hardware development (preferably in semiconductor industry and/or other high-tech systems).
• Systems thinking oriented mindset to design solutions that consider the broader technical and organizational ecosystem.
• Hands-on experimental skills.
• Strong (data-)analytical skills (e.g. Python, MATLAB).
• Highly competent in collaboration and communication.
• Good verbal and written communication skills (English).
• Accuracy, flexibility, and resilience.

Challenging and varied work with a real impact. And plenty of opportunities as, at TNO, you are in charge of shaping your career. We offer a gross monthly salary between € 3900,00 and € 4600,00 (based on your knowledge and experience), 8% holiday pay, a 13th month bonus of 8.33% and a flex budget (5.58% + € 180). In addition, you will be given every opportunity to develop yourself.

Perhaps you would like to grow your career in the direction of commerce or consultancy? Or would you like to become a project manager? Immerse yourself in sustainable innovations? Or carve out a career as a technical expert?

TNO offers optional employee benefits, enabling you to tailor your benefits package to match your personal situation. You may also expect:

• An extremely professional, innovative working environment where colleagues are leading experts in their field.
• The opportunity to attend courses, workshops and conferences, and to receive training and coaching based on your needs.
• 33 days annual leave on a full-time basis.
• An employer that values and encourages diverse talent, with initiatives like the Female Leadership Program, our Rainbow Community and round tables on inclusion topics.
• We offer a comprehensive and flexible mobility plan that also includes full compensation for public transportation for commuting and business travel.
• Great social events with your team and other TNO colleagues. That’s how you will get to know a lot of people really quickly.
• Flexible working hours, the possibility to work parttime (32 of 36 hours) and the possibility of working from home.
• Extensive relocation package for international candidates.
• A good pension scheme.

Read more about tailoring your benefits package.

At TNO, we innovate for a healthier, safer and more sustainable life. And for a strong economy. Since 1932, we have been making knowledge and technology available for the common good. We find each other in wonder and ingenuity. We are driven to push boundaries. There is all the space and support for your talent and ambition. You work with people who will challenge you: who inspire you and want to learn from you. Our state-of-the-art facilities are there to realize your vision. What you do at TNO matters: impact makes the difference. Because with every innovation you contribute to tomorrow’s world. Read more about TNO as an employer.

At TNO we encourage an inclusive work environment, where you can be yourself. Whatever your story and whatever unique qualities you bring to the table. It is by combining our unique strengths and perspectives that we are able to develop innovations that make a real difference in society. Want to know more? Read what steps we are taking in the area of diversity, equity and inclusion.

Please apply before 21st of September, 2025. The selection process comprises two interview rounds. The preliminary interview takes place in weeks 40 and 41. The second interview round has been scheduled for weeks 42 and 43. In a final meeting we will discuss the terms of employment and your tailored benefits package. We aim to finalize the entire process within four weeks.

The selection process may include an online assessment and a reference check.

A certificate of Conduct (VOG) is required before starting a new job at TNO.