Postdoc position “Spectral filters for time-resolved and calibrated spectroscopy of EUV light sources”

Are you enthusiastic about exploring scientific challenges with an industrial application perspective?

Extreme ultraviolet lithography (EUVL) is the latest generation of the semiconductor manufacturing technology powered by laser-produced-plasma light sources. These EUV light sources emit in a broad range of wavelengths spanning from soft x-rays to visible. A quantitative spectral characterization capability of such a broad wavelength range recently become available using a proprietary transmission grating spectrometer developed by XUV optics group (https: // doi.org/10.1063/5.0073839). The calibration of the charge-coupled- device (CCD) that are used as detectors in such a spectrometer is sensitive to the operation conditions of the light source. Cross-calibration of the CCD with other type of detectors such as photodiodes and investigating the light sources with time resolution provides wealth of information that is otherwise not accessible.

We are looking for a motivated and skilled post-doctoral researcher to carry out research on the fundamental physics questions on the calibration sensitivity and time-dependent spectral evolution of the EUV light source. Methods to enable inline calibration and time-resolved operation is to be developed in the project with the support of technical staff. Specifically, aim is to design multilayer spectral filters based on Bragg's condition and deposition these designs using magnetron sputtering to enable cross- calibration of the CCD response and the photodiode response.

The XUV Optics Group at Twente has started a new multidisciplinary research program on these topics. We develop forefront fundamental research, relevant to high tech applications (www. utwente.nl/xuv/). The research will take place in a state-of-the-art thin film laboratory within the MESA+ Institute for Nanotechnology at the University of Twente, in collaboration with various academic and industrial partners. The XUV group has a track record in developing thin film physics and holds several records in functional film properties, including the reflectivity of thin film multilayer optics.

Challenge

Your goal is to develop the fundamental physics understanding on time-resolved and calibrated spectroscopy of EUV light sources. This includes:

Understanding the sensitivity of detector calibration to the operation conditions of the EUV light source,

Designing and developing multilayer spectral filters/coatings to enable online calibration at various wavelengths,

Analyzing the properties of the developed filters/coatings using characterization techniques such as AFM, XRD, XRR and SEM,

Understanding the time-dependent evolution of the spectral emission of the EUV light sources.

Your profile

Your profile:

You have a doctoral degree in physics, materials science, optics, laser physics, solid state or surface physics or a related field.

It is a plus to have lab experience with vacuum systems, plasma, spectroscopy, thin film deposition and/or analysis setups.

You are an excellent team player in an enthusiastic group of scientists and engineers working on a common theme.

You are creative, like to push boundaries, and are highly motivated to address a major science challenge in thin film physics.

You are fluent in English and able to collaborate intensively with industrial and academic parties in regular meetings and work visits.

Our offer

You will be appointed on a fulltime position for 2 years.

The position is available immediately.

The university offers a dynamic ecosystem with enthusiastic colleagues in a stimulating scientific environment.

The post-doc salary is between € 3.877,- and € 5.090,- gross per month depending on experience and qualifications.

The offer further involves: a holiday allowance of 8% of the gross annual salary and a year-end bonus of 8.3%.

A solid pension scheme.

A minimum of 29-day holidays.

Numerous professional and personal development programs.

Information and application

Your reaction should include:

an application/motivation letter, emphasizing your specific interest and motivation for this particular position,

a detailed CV, containing your publications list, contact details of referees, and an academic transcript of M.Sc. education and doctorate

An interview and a scientific presentation will be part of the selection procedure. For detailed information, you can contact Dr. Muharrem Bayraktar at [email protected], +31 53 489 3910. Please apply via the “Apply Now” button below.

About the department

The University of Twente stands for life sciences and technology. High tech and human touch. Education and research that matter. New technology which leads change, innovation and progress in society. The University of Twente is the only campus university in the Netherlands. We have a strong focus on personal development and give scope for carrying out pioneering research. The Faculty of Science & Technology works together intensively with industrial partners and researchers in the Netherlands and abroad and conducts extensive research for external commissioning parties and funders.

The XUV Optics group is embedded in the MESA+ Institute (www. mesaplus.utwente.nl), which is one of the largest nanotechnology research institutes in the world, delivering competitive and successful high- quality research. The institute employs 500 people of which 275 are PhD's or PostDocs. With its unique NanoLab facilities the institute holds 1250 m2 of cleanroom space and state-of-the-art research equipment.

The University of Twente is an equal opportunity employer which values diversity. We do not discriminate on race, religion, color, national origin, gender, sexual orientation, age, marital status, or disability status. Because of our diversity values we do particularly support women to apply.

About the organisation

The Faculty of Science & Technology (Technische Natuurwetenschappen, TNW) engages some 700 staff members and 2000 students in education and research on the cutting edge of chemical technology, applied physics and biomedical technology. Our fields of application include sustainable energy, process technology and materials science, nanotechnology and technical medicine. As part of a people-first tech university that aims to shape society, individuals and connections, our faculty works together intensively with industrial partners and researchers in the Netherlands and abroad, and conducts extensive research for external commissioning parties and funders. Our research has a high profile both in the Netherlands and internationally and is strengthened by the many young researchers working on innovative projects with as doctoral candidates and post-docs. It has been accommodated in three multidisciplinary UT research institutes: Mesa+ Institute, TechMed Centre and Digital Society Institute.

Want to know more? Bayraktar, M. (Muharrem)

Assistant Professor

Bayraktar, M. (Muharrem)

Assistant Professor

Do you have questions about this vacancy? Then you can contact Muharrem for all substantive questions about this position and the application procedure. For general questions about working for the UT, please refer to the chatbot.

Contact

Phone:+31534893910

Email:[email protected]

How to apply Step 1

Apply. When you see a vacancy that appeals to you, you can apply online. We ask you to upload a CV and motivation letter and/or list of publications. You will receive a confirmation of receipt by e-mail.

Step 2

Selection. The selection committee will review your application and you will receive a response within 2 weeks after the vacancy has been closed.

Step 3

1st interview. The 1st (online or in person) meeting serves as an introduction where we introduce ourselves to you and you to us. You may be asked to give a short presentation. This will be further explained in the invitation.

Step 4

2nd interview. In the second interview, we will further discuss the job content, your skills and your talents.

Step 5

The offer. If the conversations are positive, you will be made a suitable offer.

Your Colleagues

Steenbergen, W. (Wiendelt)

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Pizzoccaro - Zilamy, M.D. (Marie-Alix)

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Vargas Llona, L.D. (Laura)

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At the UT it's all about people, in line with our university's High Tech Human Touch philosophy. In everything we do, the well-being and future of our students and staff are paramount. From research and teaching to personnel management, campus management and the use of new technologies.

Our mission We are a university of technology

Our university is a public institution that serves society. We are accountable to society for the ways in which we use our academic freedom. We are responsible for ensuring that the power of science and technology is harnessed to achieve the best possible impact in a changing world. We cherish our rich tradition of combining technical and social sciences in our five profiling themes: Improving healthcare by personalized technologies; Creating intelligent manufacturing systems; Shaping our world with smart materials; Engineering our digital society; and Engineering for a resilient world.

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We help society meet the challenges of today and tomorrow. But we are also transparent about what science and technology can and cannot do in finding sustainable solutions. And help translate these solutions into everyday life.

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We want our communities to flourish and show resilience, so we seize opportunities for innovation. We are knowledgeable and have an eye for what society needs. Our students and staff receive all the guidance they need in their quest for ecological, social and economic sustainability. “The University of Twente is all about people. Our sustainable technologies help to strengthen society.”

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