General information
Organisation
The French Alternative Energies and Atomic Energy Commission (CEA) is a key player in research, development and innovation in four main areas :
• defence and security,
• nuclear energy (fission and fusion),
• technological research for industry,
• fundamental research in the physical sciences and life sciences.
Drawing on its widely acknowledged expertise, and thanks to its 16000 technicians, engineers, researchers and staff, the CEA actively participates in collaborative projects with a large number of academic and industrial partners.
The CEA is established in ten centers spread throughout France
Reference
SL-DRT-24-0404
Direction
DRT
Thesis topic details
Category
Technological challenges
Thesis topics
MEMS chaotic motion for high sensitivity
Contract
Thèse
Job description
Improving the resolution of MEMS sensors always means increasing the cost of the component (surface area) or his electronics (complexity and power consumption). In view of the current challenges of energy sobriety, it is essential to explore new disruptive ways to reduce the impact of high-performance sensors.
Chaos is a deterministic phenomenon exponentially sensitive to small variations. Little studied until recently, it can be simply implemented in the dynamics of MEMS sensors, to amplify weak signals and increase resolution.
Ultimately, this is an 'in-sensor computing' method, making it possible to do away with some of the measurement electronics.
The aim of this thesis is to create the first MEMS demonstrator for in-sensor computing in the chaotic regime. To achieve this, we propose to study, through in-depth characterization/modeling work, this new operating regime on MEMS sensors already available at DCOS/LICA (M&NEMS and MUT beams). These first steps in understanding the link between measurand and MEMS response in the chaotic regime will enable us to move on to other applications, notably in the field of cryptography.
University / doctoral school
Electronique, Electrotechnique, Automatique, Traitement du Signal (EEATS)
Université Grenoble Alpes
Thesis topic location
Site
Grenoble
Requester
Position start date
01/10/2024
Person to be contacted by the applicant
BLARD François francois.blard@cea.fr
CEA
DRT/DCOS//LCEF
CEA / LETI
Département Composants Silicium
Laboratoire Caractérisation Electrique et Fiabilité
17, rue des Martyrs
38054 Grenoble Cedex 9
0438786035
Tutor / Responsible thesis director
HENTZ Sébastien sebastien.hentz@cea.fr
CEA
DRT/LETI/DCOS/SCMS/LCMC
17 rue des martyrs
38054 Grenoble Cedex 9
0438782891
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