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-25-0585
Direction
DRT
Thesis topic details
Category
Technological challenges
Thesis topics
Water at the hydrophilic direct bonding interface
Contract
Thèse
Job description
The microelectronics industry is making increasing use of hydrophilic direct bonding technology to produce innovative substrates and components. CEA LETI's teams have been leaders in this field for over 20 years, offering scientific and technological studies on the subject.
The key role of water at the bonding interface can be newly understood thanks to a characterization technique developed at CEA LETI. The aim of this thesis is to confirm or refute the physico-chemical mechanisms at play at the bonding interface, depending on the surface preparations and materials in contact.
A large part of this work will be carried out on our cleanroom tools. The characterization of surface hydration using this original technique will be complemented by standard characterizations such as adhesion and adherence energy measurements, FTIR-MIR and SIMS analyses, and X-ray reflectivity at ESRF.
University / doctoral school
Electronique, Electrotechnique, Automatique, Traitement du Signal (EEATS)
Université Grenoble Alpes
Thesis topic location
Site
Grenoble
Requester
Position start date
01/09/2025
Person to be contacted by the applicant
LARREY Vincent 
vincent.larrey@cea.fr
CEA
DRT/DPFT//LSCID
CEA Grenoble
LETI/DPFT/SSURF/LSJ
17 Avenue des Martyrs
38000 Grenoble
0438782743
Tutor / Responsible thesis director
FOURNEL Frank frank.fournel@cea.fr
CEA
DRT/DPFT
CEA/Grenoble
LETI/DTSI/SSURF
17 rue des Martyrs
38054 Grenoble
0438782142
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