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-27-0170
Direction
DRT
Thesis topic details
Category
Technological challenges
Thesis topics
Evaluation of new low-damage GaN etching strategies for the realization of high performance MicroLED
Contract
Thèse
Job description
For optical communication and display applications (display, AR/VR), the need for micro-displays with high resolution µLEDs GaN is becoming increasingly important. The formation of the pixel constitutes the critical brick because it generates defects on the sides of the µLED, which limit the emission performance of the device. These degradations have even more impacts on electro-optical performance for aggressive LED pitches.
The subject proposes a comprehensive approach, ranging from the development of new GaN etching strategies limiting damage to the pixel edges, to its characterization through dedicated direct means, and validated on a complete device by an electro-optical test vehicle.
University / doctoral school
Electronique, Electrotechnique, Automatique, Traitement du Signal (EEATS)
Université Grenoble Alpes
Thesis topic location
Site
Grenoble
Requester
Position start date
01/10/2027
Person to be contacted by the applicant
RUEL Simon 
Simon.RUEL@cea.fr
CEA
DRT/LETI/DIPTEC/SEMAP/LGS
CEA Grenoble
17 avenue des Martyrs
38000 Grenoble
BAT 4123
04.38.78.20.42
Tutor / Responsible thesis director
POSSEME Nicolas nicolas.posseme@cea.fr
CEA
DRT/LETI/DIPTEC/SELIN/LIME
CEA LETI - MINATEC
17 rue des Martyrs
38054 GRENOBLE Cedex 9
04.38.78.64.29
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