CEA-Leti

[𝐋𝐞𝐭𝐢 𝐈𝐧𝐧𝐨𝐯𝐚𝐭𝐢𝐨𝐧 𝐃𝐚𝐲𝐬 𝟐𝟎𝟐𝟒] Relive the best moments and enjoy! 🎬 The connections made in #Grenoble during CEA-Leti's flagship event are set to spark new #business and #partnerships, fostering innovation from lab to fab. 🙏 A big thank you to: ▪ Over 1,100 attendees from 25 countries who joined the event ▪ All those who networked and conducted business during 400+ meetings ▪ The 120 #keynote speakers and panelists who provided amazing tech content ▪ Our partners who sponsored this event and exhibitors who showcased their technology ▪ The CEA-Leti #experts who led our technical conferences ▪ Everyone behind the scenes who made this event possible If you were among the lucky attendees, the entire CEA-Leti team hopes you left inspired to integrate transformative technologies into your products and solutions for a brighter future for all. 📅 𝐒𝐀𝐕𝐄 𝐓𝐇𝐄 𝐃𝐀𝐓𝐄: The next Leti Innovation Days will take place on June 17-19, 2025, in Grenoble, France. Mark your calendar and block your schedule so you don't miss the next edition. ☺

AWARD] Congratulations to Lou Denaix and Frédéric Barbier for their ICNS-14 awards! 👏 Lou and Frédéric are devoting their research to improving components that will shape the #LED technologies of tomorrow. Their groundbreaking work is light years ahead of the Cathode-ray tube monitors some may remember from childhood. 📺 ☄ Lou's research focuses on improving the manufacture of ultraviolet (UV) and visible-emitting LEDs based on III-N semiconductor materials: aluminum nitride (AlN), gallium nitride (GaN), indium nitride (InN) and alloys of these materials. This #technology has a wide range of applications, including medical sterilization, food processing and UV water purification. “Presenting my research in Fukuoka, Japan, was a fulfilling experience for several reasons. But one of the highlights of the conference was without a doubt my chance encounter with a samurai.” Said Lou 🚨The production of pure red light by LEDs is challenging due to material degradation caused by the high concentration of Indium required. To address this issue, Frédéric and his team have developed a new relaxed InGaN substrate that allows for better Indium incorporation and therefore higher efficiency. “Participating in a conference that specializes in nitrides and presenting the findings of my team were already quite an experience. Because our materials are innovative, having the chance to talk about our findings among nitride colleagues was very rewarding!” added Frédéric ⏩ While Lou will continue to contribute to the understanding of the electrostatic properties of III-N #semiconductors and the use of delta doping to improve its reproducibility, Frédéric is eager to improve the efficiency of red LEDs. More info on our website: https://lnkd.in/eHYwryHa David Cooper | Eva Monroy | Florian Castioni | Matthew Bryan | David Cooper | Jing Li | Julie Spinelli | Yannick Le Tiec | CEA-Liten | Université Grenoble Alpes #PhD #doctorate

[NEWS] Blood pressure monitoring without the doctor’s office 💗 Hypertension impacts 1.28 billion people worldwide and is a major cause of premature death worldwide. To monitor patients on a continuous basis, CEA-Leti is developing a wearable device to measure blood pressure without needing the inflatable cuff used by current blood pressure monitors. Today, doctors generally examine patients suffering from hypertension once a month. With this patent-protected device, health professionals hope to continuously and remotely monitor blood pressure in order to detect anomalies and be alerted in case of an emergency. 🗨 “With precise blood pressure measurements, we hope to facilitate the monitoring of hypertension and its associated illnesses: heart attacks, strokes and irreversible kidney damage. Currently, 80% of patients worldwide are not properly treated.” Pierre Blandin, head of CEA-Leti's Medical Devices strategic program More info: https://lnkd.in/eC5NzHFh Sophie Morales | Olivier Fuchs | Nadège Nief | Jeremie Pescatore | Arnaud Witomski | Aude Alix #Health #device

[PhD Generation] 📣 E06S4 | Brillouin Spectroscopy: Innovative Instrumentation with Pierre Bouvet, PhD, a PhD student at CEA-Leti 🔬 🔬 PhD Goal: Pierre's research focuses on stabilizing and simplifying instruments used in Brillouin spectroscopy, an advanced technique that uses light to study mechanical waves in materials, with applications in material science and biomedical engineering. ❓ Impact: By making Brillouin spectroscopy widely available and stable, Pierre's work is opening up new possibilities for researchers to explore previously unfeasible applications. This innovation could lead to significant advances in terms of understanding material properties and developing new technologies. 🎤 Pierre's Experience: "My work at CEA-Leti has enabled me to transform a complex, unstable instrument into a reliable tool. The multidisciplinary environment and the opportunity to collaborate with experts have been invaluable. My research experience has been enriched by attending international conferences and working on diverse projects." 🌐 Next Steps: After his thesis, Pierre plans to continue his research on Brillouin spectroscopy by applying a new approach in a postdoctoral research project in Vienna, Austria, with the goal of further advancing this promising field. 📽️ Watch Pierre's inspiring journey unfold in our latest video! Ready to start your research journey? Apply now for exciting PhD opportunities at CEA-Leti! https://lnkd.in/etTA2EJn Le Réseau des Carnot | Gaultier Vanessa | Julien Emieux | Jean-Maxime Roux | Fabrice Navarro | Aude Alix | Caroline Paulus | thomas dehoux | Jean-Charles Baritaux | École normale supérieure #science #technology #BrillouinSpectroscopy #research

[REPORT] Record mmW radar performance to support remote contactless vital sign detection. 💗 CEA-Leti developed a new #radar technology that could enable low-power, high-performance on-chip radar transceivers for the contactless measurement of vital signs for automotive in-cabin systems and #medical devices. The #technology is sensitive enough to generate a human heartbeat profile from surface micro-vibrations of the thorax. ✅ CEA-Leti's teams obtained chirp modulation rates as high as 30 GHz/µs on a 60 GHz carrier, with exceptional phase noise #performance. This is the steepest chirp slope known for mmW radar systems to date. The low-frequency input enables the use of a direct digital synthesizer to perform fast chirping on mmW frequencies. The application-level demonstration of ranging sensitivity confirmed 10 µm sensitivity in the range direction at sensor rates up to 100 kHz—on par with an echocardiograph—even in the presence of significant mechanical disturbances, like those present around a person riding in a car or running on a treadmill. Parasitic movements can be digitally filtered out, leaving clear, accurate vital sign readings. More info here: https://lnkd.in/eST7vHWt Mykhailo Zarudniev | Alexandre Siligaris | Marc Donikian #health

[AWARD] Integrity and #confidentiality of embedded neural networks – Tackling security threats in the physical dimension ⚡ Congratulations to Kévin Hector for his Best Paper award at the SECAI workshop! 🐱💻 One of the major trends in #AI today is the massive deployment of neural networks on a multitude of embedded platforms. However, #security is one of the major obstacles to the deployment of such systems. Kevin's research project therefore aims to study the so-called "physical" vulnerabilities of neural networks embedded on microcontrollers. 👨🎓 In his final year at ESTIA Institute of technology , Kevin specialized in robotics and embedded systems, obtaining a double degree from the University of Salford-Manchester. Thanks to this experience, he then began a thesis in the "Systèmes et Architectures Sécurisées" (SAS) team, a joint research team between CEA-Leti and the École des Mines de Saint-Étienne. “When we talk about #cybersecurity, the stereotype of an attacker remotely hacking a computer system immediately springs to mind. However, our expertise focuses on a less well-known aspect of IA: hardware security. We work directly at the physical level, interacting with microelectronic components to protect embedded information systems against these forms of attack, which in the past have not been given adequate consideration.” ✅ Kevin identified how some attackers were able to steal information internal to neural networks deployed on microcontrollers by injecting laser faults. Using this method, they were able to illicitly determine some of the targeted neural network’s internal parameters (approximately 80% of their constituent bits). This information was then used to train a substitute neural network that mimicked the targeted network’s performance. More info on our website: https://lnkd.in/eh8Sw96A Pierre-Alain Moellic | Mathieu Dumont | Jean-Max Dutertre | STMicrolectronics Limited | IDEMIA #PhD #doctorate

[NEWS] Nanosatellites to study Earth's magnetic field 🛰 Following a risk assessment phase, the European Space Agency - ESA has announced the launch of the NanoMagSat mission, which aims to map Earth's magnetic field. CEA-Leti is actively involved in this project as it is responsible for developing the on-board magnetometers and the entire payload of the future #satellites. The analysis of the Earth's magnetic field is therefore of prime importance in many sectors. “Above all, this study is of major scientific interest,” emphasizes Jean-Michel LEGER, Head of the “#Space Applications” program at CEA. “The aim is to better understand our planet and its evolution through the lens of its magnetic field, and to use these measurements for magnetic navigation or to deduce information about ocean temperature and salinity.” In 2022, ESA asked the NanoMagSat consortium to carry out a risk-reduction study, in particular around the deployable boom. With the #success of this phase, the agency approved the continuation of the project, thus effectively kicking off the mission. This is good news for the teams involved, who are already looking ahead to the final deadline: satellite launches are scheduled for the end of 2027. More Info about this adventure 👉 https://lnkd.in/gMWdFurR Fabien Clermidy | Viviane CATTIN | Marc Donikian

[ANECDOTE] Thought you'd seen it all when it came to logos? Dive with us into the fascinating world of #nanotechnologies. 🔎 According to David Mertz, the smallest Python logo ever created is a mere 40µm wide, invisible to the naked eye and requiring a powerful microscope. While this cannot be qualified as a scientific breakthrough, CEA-Leti's teams are proud to share that this cool feat of miniaturization comes from their labs. During a thesis project in integrated photonics, they designed, fabricated, and "photographed" a Python logo using a scanning electron microscope (SEM). Since mask design requires sub-micrometer precision and complex shapes, #programming comes into play. It enables precise control of photonic device design in record time. In that respect, #Python has become years after years one of the unavoidable tools for #Photonics and #Nanotechnology, it is worth recognizing it down to the nanoworld. In photonic circuits, there are voids that can be filled with different shapes to ensure manufacturing uniformity. Empty spaces must be filled with smaller structures called demies (in our case, the python logo). Then the fabrication processes of the photonic waveguides and components take place in a clean room; it involves several stages of photolithography and etching on a silicon wafer. The Python logo is etched at the same time as the photonic waveguides in silicon nitride (SiN). For detailed visualization of such as small object, the SEM uses an electron beam to scan the surface of the sample and create a relief surface image. This technique allows us to not only scrutinize the intricate details of the logo's engraving but also assess its quality by revealing surface features at a microscopic level. This thesis project is the fruit of collaboration between dozens of people in CEA-Leti's laboratories, and proves that the scientific community will always be able to amaze us! Behind this wink for #Python, the thesis work behind this is expected to accelerate the optical communication thanks to disruptive #photonics technologies within CEA-Leti’s labs filled with passionate people. So stay tuned! Photo credit: Jonathan Faugier & Baptiste R. Python Software Foundation | Quentin Wilmart | Karim HASSAN | Léopold Virot | Hélène Loriot | Estelle Fege

 [PhD Generation] 📣 E05S4 | Phase-Change Memory: Revolutionizing Data Storage with Oumaima DAOUDI, a doctoral researcher at CEA-Leti 💾 🔬 PhD Goal: Oumaima Daoudi's #research focuses on characterizing materials for phase-change memory, a promising technology for next-generation data storage. By combining various characterization techniques from CEA-Leti and institutes such as synchrotron facilities, she aims to study the structural evolution of these materials to improve their performance in memory devices. ❓ Impact: In a world with increasing #data storage demands, current technologies face limitations in #scalability, density, and power consumption. Oumaima's work on developing non-volatile memories addresses these challenges by reducing power consumption and enhancing memory density, leading to more efficient and sustainable data storage solutions. 🎤 Oumaima's experience: "CEA-Leti offers a multidisciplinary environment offering high-quality research and collaborations with both industrial and academic partners. My journey here, from characterizing photodiodes for imaging applications to advancing phase-change memory #technology, has been incredibly rewarding." 🌐 Next steps: After her thesis, Oumaima plans to continue working on research and development in the field of microelectronics, leveraging her multidisciplinary background to drive innovative projects with practical industrial applications. 📽️ Watch Oumaima's inspiring journey unfold in our latest video! Ready to start your research journey? Apply now for exciting PhD opportunities at CEA-Leti! https://lnkd.in/etTA2EJn Le Réseau des Carnot | Elodie CHAPELARD | Céline LAPEYRE | Vincent Delaye | Emmanuel NOLOT | Gabriele Navarro | Hubert Renevier | Van Hoan LE | nevine rochat | Frédéric FILLOT | Julie Spinelli | Université Grenoble Alpes | Gaultier Vanessa | Julien Emieux | #innovation

[NEWS] How can we best monitor air quality, which is responsible for 4.2 million premature deaths per year worldwide? CEA-Leti is developing a number of sensor technologies, in particular high-performance, low-cost photoacoustic sensors, which would make it possible to increase the number of monitoring devices in the field. "To meet different needs in terms of performance, cost and use, we are developing four other sensor technologies: thermal conductivity sensors, non-dispersive infrared sensors, interferometric sensors and miniaturized chromatography systems.” Bertrand Bourlon, Head of CEA-Leti's Optical Sensors Laboratory Applications include indoor and outdoor air quality monitoring, process and industrial discharge monitoring, and chemical detection for security and defense. To learn more 👉 https://lnkd.in/eHGfn6QU Laurent Fulbert | Nadège Nief | Vincent Destefanis | Jérémy Scelle | Aude Alix | Hélène Loriot | Aurélie Tapini #airquality #health #photonics