Mechanical Engineering Graduation Internship: Thermal path redesign of a sensor housing

Interns and Trainees

In a nutshell


Eindhoven, Netherlands


Interns and Trainees

Work Experience

0-1 year

Educational Background

Mechanical Engineering



Remote Work


Time Type

Full time

Job ID: J-00277793


Are you a Master student in mechanical engineering looking for a graduation internship? Do you have interest in accurate and stable mechanical designs? Then this internship could be interesting for you!

Background information

The group Sensors Mechanics is part of the cluster Mechanical Development and is responsible for the design of optical sensor systems, like wafer height measurement systems and image sensors. Part of the development portfolio of this group are the so-called image sensors – different types - which are located on top of the wafer stage and are used to measure e.g. the position of the focal plane of the projection lens, the light energy, optical aberrations and the position of the stage with respect to a reference. For accuracy reasons, this geometrical construction of the sensors must remain very stable over time (sub nm range), with demanding dynamic and thermal properties. The sensors have in common that they use a camera or set of diodes, and an optical element with optical marks on top. The diodes are connected to a printed circuit board (pcb) mounted inside the senser housing via flexures. Flexures are used to deal with the CTE mismatch between sensor housing and pcb. Unfortunately, these electronics generate heat which disturbs the stability of the sensors. The connection between the pcb and the housing can be improved, including the heat flow path from the pcb to the external world, to improve the thermal-mechanical stability of the optical element on top of the housing.

Your assignment

The assignment is to get familiar with the actual design and understand the rationale of it. Using the current design as trade-off, define proposals for a redesign of the flexures connecting the pcb to housing, and possibly the housing itself, in order to improve the heat transfer of the pcb to the outside world. Support your redesign proposal with calculations and eventually with a CAD design. If the timeframe of the assignment allows, make a mock-up to demonstrate the changes and eventually proof with experiments that the heat transfer will be improved in your design. During your assignment you will be in touch with mechanical, electronical and physics sensor architects, and possibly a manufacturer.

Your profile

To be the perfect match for this internship you:

  • Are a master's student in Mechanical Engineering;

  • Have strong interest in accurate and stable mechanical designs;

  • Have hands-on experience with CAD systems (preferably Siemens NX) ;

  • Have experience with thermal and dynamic FEA methods;

  • Are communicative student with a pro-active approach a hand-on mentality;

This is a Master Graduation internship lasting 9 months for 5 days per week starting from September 2023.

Please note that we can only consider students who are enrolled at a school for the entire duration of the internship.

This position requires access to controlled technology, as defined in the 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.

Diversity and inclusion

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 diversity and inclusion is a driving force in the success of our company.  

Other information

Change the world – one nanometer at a time
Become an intern at a Dutch company that’s a global industry leader. You’ll gain valuable experience in a highly innovative environment – one that sparks your imagination and creativity. In addition to a monthly internship allowance of maximum €600 (plus a possible housing and/or travel allowance), you’ll get practical guidance from experts in the field and the chance to work in and experience a dynamic team environment.

ASML: be part of progress
ASML is a high-tech company headquartered in the Netherlands. We manufacture the complex lithography machines that chipmakers use to produce integrated circuits, or computer chips. What we do is at the heart of all the electronic devices that keep us informed, entertained and connected. Every day, you use electronics that simply wouldn’t exist without our machines.

Behind ASML’s innovations are engineers who think ahead. The people who work at our company include some of the most creative minds in physics, electrical engineering, mathematics, chemistry, mechatronics, optics, mechanical engineering, and computer science and software engineering.

We believe we can always do better. We believe the winning idea can come from anyone. We love what we do – not because it’s easy, but because it’s hard.

Students: getting ready for real-world R&D
We’re a global team of about 29,000 people of 120 different nationalities and counting. Headquartered in Europe’s top tech hub, the Brainport Eindhoven region in the Netherlands, our operations are spread across Europe, Asia and the US.

In such an environment, your colleagues may be sitting next door, or they could be thousands of kilometers away in a different country – or even working for a different company.

An internship at ASML is the opportunity to get to know not only the world of industrial-strength R&D, but yourself – you’ll discover just what excites you most. Will you design a part of the machine, or make sure it gets built to the tightest possible specifications? Will you write software that drives the system to its best performance, or work side-by-side with the engineers of our customers in a fab, optimizing a system to the requirements of the customer?

How will you be part of progress?

EOE AA M/F/Veteran/Disability

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