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Advertising division: PGI-7 - Electronic Materials
Reference number: 2021D-098

The Peter Grünberg Institute – Electronic Materials (PGI-7) is working for the development of memristive devices and their utilization in new neuromorphic computing concepts by means of co-integration with CMOS-blocks. For future realization of cognitive hardware for self-learning systems, especially energy efficient memristive devices and circuit designs are required. The study will be part of the BMBF-funded project NEUROTEC ( ). Memristive devices inherently combine the ability to process and to store data in the same physical place, which eliminates the need for large data movement. Together with their two-terminal structure and possibility for low power consumption, they are seen as one of the most promising technologies for accelerating future computers. However, challenges such as resistance and switching variability hinder large scale integration. Parallel to the optimization of these switching properties by means of composition of materials, stack order etc., small scale test vehicles, i.e. silicon chips with predefined transistors, are prepared and tested. Back-end-of-line integration techniques such as deposition via atomic layer deposition and nano-lithography are involved. The integrated switches should be compatible to the connected silicon transistors, enabling the demonstration of the expected enhancement principles by integration with foundry-manufactured NC-chips provided by the NEUROTEC consortium.

We are looking to recruit a

PhD Position in Optimization and Integration of Memristive Switches for Neuromorphic Computing Applications

Your Job:

  • You will fabricate nano-structured Valence Change Mechanism memresistive devices using technologically promising materials such as HfO2 and Ta2O5 sandwiched between Pt or TiN on one side and Ti or W on the other side. The different oxides are to be grown using atomic layer deposition (ALD).
  • You will perform the electrical characterization of the devices. Current-voltage measurements should be carried out in sweep and pulse mode to explore the resistive switching as well as analog features, which are essential for most use cases in neuromorphic circuits.
  • The target is to maximize the yield and the uniformity of the switching devices, so the neuromorphic principles can be reliably demonstrated on the silicon transistor chip. The required tests therefore focus on switching variability, cycling endurance and memory stability.
  • You will co-integrate reliable designs on foundry-manufactured integrated circuits that are provided from the research consortium.
  • In collaboration with other team members you will conduct measurements demonstrating the ability of the memristive device for learning algorithms.

Your Profile:

  • You have a Master`s degree in physics, materials science or electrical engineering with an above-average academic performance.
  • You are interested in experimental and multidisciplinary scientific work with a focus on technological content.
  • Furthermore, you are a team-oriented person that likes to work in interdisciplinary teams and your are willing to engage in a lively scientific exchange.
  • You have a solid basic knowledge of semiconductor physics and integration technology.
  • Not only are you fluent in German, but you also have a good command of the English language.
  • You are a very independent and highly self-motivated person, which is evident in your very reliable and conscientious work style.

Our Offer:

We work on the very latest issues that impact our society and are offering you the chance to actively help in shaping the change! We offer ideal conditions for you to complete your doctoral degree:

  • Extensive company health management
  • Ideal conditions for balancing work and private life, as well as a family-friendly corporate policy
  • Flexible working hours, part-time employment with 19,5 working hours per week, and 30 days of annual leave for a five day week
  • A large research campus with green spaces, offering the best possible means for networking with colleagues and pursuing sports alongside work
  • Further development of your personal strengths, e.g. through an extensive range of training courses; a structured program of continuing education and networking opportunities specifically for doctoral researchers via JuDocS, the Jülich Center for Doctoral Researchers and Supervisors:
  • Targeted services for international employees, e.g. through our International Advisory Service

The position is initially for a fixed term of 3 years, with possible long-term prospects. Pay in line with 75% of pay group 13 of the Collective Agreement for the Public Service (TVöD-Bund) and additionally 60 % of a monthly salary as special payment („Christmas bonus“). Further information on doctoral degrees at Forschungszentrum Jülich including our other locations is available at:
Forschungszentrum Jülich promotes equal opportunities and diversity in its employment relations.
We also welcome applications from disabled persons.

Additional Information

The job will be advertised until the position has been successfully filled. You should therefore submit your application as soon as possible. We look forward to receiving your application via our

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