To improve existing spin qubit devices, new device designs and fabrication techniques have to be developed. For instance, gate based dispersive readout technology is currently under development within TNO. These new designs are tested in a stepwise manner: First using test structures to verify the working of key concepts and later using the full device with the final goal to show a proof-of-concept. Before a layered drawing of test, or full, devices can be sent to our cleanroom for nanofabrication, we need some basic understanding and verification of the design. For this we are working on design software that will enable the user to quickly draw patterns (e.g. gate electrodes, bonding pads, or readout resonators), parameterize their design and validate them through various simulations before finalization. The aim for this software is to quicken the design process and generate a better understanding of how an upcoming device will perform.This student project will be an internship with a duration of at least 3-4 months on the topic of Quantum computing chips based on semiconductor (SiGe) spin qubit technology.There are several roles available within our projects:Develop / improve / extend design tools to improve efficiency of the design process (using python coding);Create methods to perform analysis in, and extract data from, various programs such as Ansys HFSS (microwave modelling), COMSOL or QTCAD (electrostatic simulations), or mumax3 (micromagnet modelling) to evaluate the performance of the design;Make a preliminary design of a new concept of quantum chip, focusing on the readout resonator.Together with you, we will decide which subject is most suitable for your internship. Next to your individual assignment you will be part of a multidisciplinary team of experienced engineers.
