Physics | Optics internship: fast modeling of electron optical systems

Within ASML, the Scanning Electron Microscopy (SEM) group focusses on fundamental understanding and novel solutions to advance our e‑beam metrology tools used in the semiconductor industry. We are developing the next generation models to better predict the performance of our future tools. You, as an intern, can be part of the unique work we do.

Your Assignment

• Create a software framework to model electron optical components using fitted transfer matrices, compacted into a surrogate model.
• Make beam transport simulations much faster by using smart compression methods, without losing accuracy.
• Include a calibration tool that can build detailed transfer matrices and compact surrogate models for quick, real‑time use.
• Deliver a modular software package for transfer matrix computation and surrogate model generation with compression.
• Provide benchmarking showing accuracy compared to full simulations and significant speed improvements.
• Produce documentation and examples for practical use.

This is a Master internship for around 6 - 9 months, working minimum 4 days per week (hybrid). This topic is also suitable for a thesis. The start date of this internship is around February 2026.

Your Profile

• Busy with your master's in Physics or Optics, preferably with a specialization in Electron Optics.
• Preferably have a good understanding of electron optical systems or related domains.
• Skilled in Python.
• Some experience with numerical modeling and simulation.
• Good communication skills in English (verbal and written).

Other requirements you need to meet

• You are enrolled at an educational institute for the entire duration of the internship.
• You are located in the Netherlands to perform your internship. In case you are currently living/studying outside of the Netherlands, your CV/motivation letter includes the willingness to relocate.
• If you are a non‑EU citizen, studying in the Netherlands, your university is willing to sign the documents relevant for doing an internship (i.e., Nuffic agreement).
• This position requires access to controlled technology, as defined in the United States Export Administration Regulations (15 C.F.R. § 730, et seq.). Qualified candidates must be legally authorized to access such controlled technology prior to beginning work. Business demands may require ASML to proceed with candidates who are immediately eligible to access controlled technology.

Inclusion and diversity

ASML is an Equal Opportunity Employer that values and respects the importance of a diverse and inclusive workforce. It is the policy of the company to recruit, hire, train and promote persons in all job titles without regard to race, color, religion, sex, age, national origin, veteran status, disability, sexual orientation, or gender identity. We recognize that inclusion and diversity is a driving force in the success of our company.

Need to know more about applying for a job at ASML? Read our frequently asked questions.