Postdocs in Modelling of Float-Zone Silicon Fabrication Processes using Multi-Physics and Data-Driven Approaches – DTU Construct

Job title: Postdocs in Modelling of Float-Zone Silicon Fabrication Processes using Multi-Physics and Data-Driven Approaches – DTU Construct

Company: Danmarks Tekniske Universitet


Job description: Job Description:Are you passionate about multi-physics modelling and complex data analytics in advanced manufacturing? Join us in our groundbreaking project to develop state of the art simulation for the analysis and optimization of silicon single crystal production.The section for Manufacturing Engineering at DTU Construct is seeking two highly motivated postdocs for a project on multi-physics, multi-scale simulation of single silicon crystal manufacturing. The project is about developing the next generation of Float-Zone silicon crystals increasing the crystal diameter from today’s industry standard of 200 mm to the future crystal size of 300 mm. The project is carried out in close cooperation with Topsil GlobalWafers A/S and researchers at the Technical University of Denmark.In the project you will:

• Investigate the multi-physical behaviour of the float zone process, addressing technical challenges and assist in proposing innovative solutions for production upscaling
• Develop both physics-driven and data-based models for the float zone process and test these in experiments performed at lab-scale as well as based on operational data from production.
• Contribute to publishing our models and results in high-ranking journals and conferences as well as integrating our findings into industrial practice and engineering education.

Join us in making a tangible difference in advanced production of power electronics targeting the European chips manufacturing act and generally supporting the green transition.Learn more about Topsil GlobalWafers A/S and the project: .About the Postdoc Projects
You will collaborate closely and receive support from experts in modelling of manufacturing processes and materials science at DTU, as well as engineering specialists from the project’s industrial partner.You will in combination cover multi-physics modelling of manufacturing engineering and mechanical engineering as well as materials science. We are particularly looking for candidates with strong backgrounds (preferably PhDs) within mechanical engineering, manufacturing engineering, materials science, applied mathematics or physics. Specific disciplines will involve heat transfer, fluid mechanics, solid mechanics, materials science including phase changes, numerical mathematics and data analytics based on statistics and/or machine learning. Each of the postdoc positions will be moulded over the applicants’ specific competences and interests.Responsibilities

• To develop simulation of the float zone process from physics-based models or data-driven approaches, or the two in combination.
• To validate and calibrate numerical models using both laboratory experiments as well as operational data from industrial production
• To cooperate with project partners (researchers and industry) to identify key issues that must be solved to reach simulation models with the targeted predictive power.
• To communicate scientific results, orally and in writing, to both the scientific and the industrial communities

Specific tasks will include

• Developing solid mechanical models for the evolution of transient as well as residual stresses based on a close coupling with the heat and mass transfer as well as phase changes taking place during manufacturing.
• Develop models of defect generation during material fabrication.
• Developing data-driven models based on proper statistical methods to obtain correlations between process parameters and process signatures
• Applying machine learning to large datasets originating from operation during real production.
• Combining data-driven approaches with physics-based models in hybrid-based simulation for process optimization.
• Developing advanced numerical models for the coupled heat and mass transfer in the float zone process including 3D computational fluid dynamics (CFD) models.

Qualifications

• PhD degree (or equivalent) in manufacturing engineering, mechanical engineering, materials science, applied mathematics or physics preferably in relation to multi-physics, multi-scale modelling of complex systems.
• Good knowledge of modelling and the use of open-source as well as dedicated commercial FEM/FVM software packages.
• Excellent English proficiency in written and oral form.
• The ability and willingness to share and discuss results from the project with both scientists and relevant industrial partners
• Strong analytical skills and ability to work independently and with an interdisciplinary team.

We offer
DTU is a leading technical university globally recognized for the excellence of its research, education, innovation and scientific advice. We offer a rewarding and challenging job in an international environment. We strive for academic excellence in an environment characterized by collegial respect and academic freedom tempered by responsibility.Salary and terms of employment
The appointment will be based on the collective agreement with the Danish Confederation of Professional Associations. The allowance will be agreed upon with the relevant union.The period of employment for both Postdoc’s is 36 months.You can read more about .Further information
Further information may be obtained from Professor Jesper Hattel, and Associate Professor Niels Skat Tiedje, .You can read more about DTU Construct at .If you are applying from abroad, you may find useful information on working in Denmark and at DTU at .Application procedure
Your complete online application must be submitted no later than Sunday 6 April 2025 (23:59 Danish time). Applications must be submitted as one PDF file containing all materials to be given consideration. To apply, please open the link “Apply now”, fill out the online application form, and attach all your materials in English in one PDF file. The file must include:

• Application (cover letter)
• CV
• Academic Diplomas (MSc/PhD – in English)
• List of publications

Applications received after the deadline will not be considered.All interested candidates irrespective of age, gender, disability, race, religion or ethnic background are encouraged to apply. As DTU works with research in critical technology, which is subject to special rules for security and export control, open-source background checks may be conducted on qualified candidates for the position.DTU Civil and Mechanical Engineering develops and utilizes science and technical knowledge for the benefit of society and sustainable development. We undertake research, education, innovation, and scientific advice of the highest quality within building design and processes, building construction and safety, building energy and installation, solid mechanics, fluid mechanics, materials technology, manufacturing engineering, engineering design and thermal energy systems.Technology for people
DTU develops technology for people. With our international elite research and study programmes, we are helping to create a better world and to solve the global challenges formulated in the UN’s 17 Sustainable Development Goals. Hans Christian Ørsted founded DTU in 1829 with a clear mission to develop and create value using science and engineering to benefit society. That mission lives on today. DTU has 13,500 students and 6,000 employees. We work in an international atmosphere and have an inclusive, evolving, and informal working environment. DTU has campuses in all parts of Denmark and in Greenland, and we collaborate with the best universities around the world.

Expected salary:

Location: Kongens Lyngby, Hovedstaden – Lyngby, Midtjylland

Job date: Thu, 06 Mar 2025 07:09:39 GMT

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