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Results 61 - 80 of 131.


Physics - 16.06.2020
CEA-Leti Demonstrates Breakthrough Architecture for HPC Devices Using Gate-All-Around Nanosheet Fabrication Process
Virtual Presentation During VLSI 2020 Details Transistors' Performance And Power-Use Advantages Versus FinFET Devices -GRENOBLE, France - June 15, 2020 - CEA-Leti has demonstrated fabrication of a new gate-all-around (GAA) nanosheet device as an alternative to FinFET technology targeting high-performance (HPC) applications such as smartphones, laptops, and mobile systems with data collection and processing involving low-power and high-speed operation.

Innovation - Physics - 11.06.2020
Matrix imaging: an innovation for improving ultrasound resolution
Matrix imaging: an innovation for improving ultrasound resolution
In conventional ultrasounds, variations in soft tissue structure distort ultrasound wavefronts. They blur the image and can hence prove detrimental to medical diagnosis. Researchers at the Institut Langevin (CNRS/ESPCI Paris-PSL) 1 have developed a new non-invasive ultrasound method that avoids such aberrations.

Physics - Astronomy / Space - 15.04.2020
Where did the antimatter go? Neutrinos shed promising new light
Where did the antimatter go? Neutrinos shed promising new light
We live in a world of matter - because matter overtook antimatter , though they were both created in equal amounts by the Big Bang when our universe began. As featured on the cover of Nature on 16 April 2020, neutrinos and the associated antimatter particles, antineutrinos, are reported to have a high likelihood of differing behaviour that offers a promising path to explaining the asymmetry between matter and antimatter.

History / Archeology - Physics - 09.04.2020
Neanderthal cord weaver
Neanderthal cord weaver
Contrary to popular belief, Neanderthals were no less technologically advanced than Homo sapiens . An international team, including researchers from the CNRS, have discovered the first evidence of cord making, dating back more than 40,000 years 1 , on aflint fragment from the prehistoric site of Abri du Maras in the south of France 2 .

Physics - 30.03.2020
Mystery solved! We finally understand the origin of the colours in the first colour photographs
Mystery solved! We finally understand the origin of the colours in the first colour photographs
A palette of colours on a silver plate: that is what the world's first colour photograph looks like. It was taken by French physicist Edmond Becquerel in 1848. His process was empirical, never explained, and quickly abandoned. A team at the Centre de Recherche sur la Conservation (CNRS/Muséum National d'Histoire Naturelle/Ministère de la Culture) has now shone a light on this, in collaboration with the SOLEIL synchrotron and the Laboratoire de Physique des Solides (CNRS/Université Paris-Saclay) .

Physics - Electroengineering - 18.02.2020
CEA-Leti and CEA-IRIG Demonstrate Quantum Integrated Circuit Combining Quantum Dot with Digital-Analog Circuits on CMOS Chip
CEA-Leti and CEA-IRIG Demonstrate Quantum Integrated Circuit Combining Quantum Dot with Digital-Analog Circuits on CMOS Chip
Presentation at ISSCC 2020 Shows Role FD-SOI Can Play in Embedding Qubit Arrays with Classic Electronics to Build Large-Scale Quantum Silicon Processors SAN FRANCISCO - Feb. Leti, an institute of CEA, and CEA-IRIG, a fundamental research institute, have created the world's first quantum integrated circuit that demonstrates the possibility of integrating conventional electronic devices and elements with quantum dots on a CMOS chip.

Physics - 27.01.2020
Pattern Formation in Low-Pressure Radio-Frequency Plasmas due to a Transport Instability
Pattern Formation in Low-Pressure Radio-Frequency Plasmas due to a Transport Instability
Publication by Laboratoire de Physique in Physical Review Letters on December 23, 2019. Pattern formation, observed experimentally in a radio-frequency plasma in annular geometry, and characterized by azimuthal symmetry breaking of the plasma parameters, is reported. The azimuthal modulation increases with increasing pressure in the range 1-300 Pa.

Physics - 16.12.2019
What happens to gold nanoparticles in cells?
What happens to gold nanoparticles in cells?
Gold nanoparticles, which are supposed to be stable in biological environments, can be degraded inside cells. This research conducted by teams from the CNRS, l'Université de Paris, Sorbonne Université, and l'Université de Strasbourg will be published in PNAS on December 16 2019, and reveals the ability of cells to metabolize gold, which is nevertheless not essential for their functioning.

Physics - 11.12.2019
CEA-Leti and partners demonstrate potentially scalable readout system for large arrays of quantum dots
'Results Hold promise for Fast, Accurate Single-Shot Readout 'Of Foundry-Compatible Si MOS Spin Qubits' 'SAN FRANCISCO ' Dec. 11, 2019 ' Leti, a technology research institute of CEA Tech, and its research partners have demonstrated a potentially scalable readout technique that could be fast enough for high-fidelity measurements in large arrays of quantum dots.

Physics - 15.10.2019
Observation of the Resonance Frequencies of a Stable Torus of Fluid
Publication by Laboratoire de physique in Physical Review Letters on August 30, 2019. We report the first quantitative measurements of the resonance frequencies of a torus of fluid confined in a horizontal Hele-Shaw cell. By using the unwetting property of a metal liquid, we are able to generate a stable torus of fluid with an arbitrary aspect ratio.

Physics - Music - 06.09.2019
The Force of Sound: CEA-Leti Manipulates Cells & Bacteria Samples Using Non-contact Evanescent Acoustic Tweezers
The Force of Sound: CEA-Leti Manipulates Cells & Bacteria Samples Using Non-contact Evanescent Acoustic Tweezers
Evanescent Acoustic Beam Moves Suspended Particles at Lower Cost & Energy Consumption Than Existing Propagative Surface Acoustic Wave (SAW) Systems. CEA-Leti has developed a new acousto-microfluidic technology for manipulating microand nanoscale samples using evanescent sound waves. Described in a paper published in the September issue of Nature (Comm.

Innovation - Physics - 03.06.2019
CEA-Leti and Silvaco Team Up!
Project Combines CEA-Leti's Semiconductor Development Expertise and Silvaco's SPICE Simulation and Variability Analysis Technologies LAS VEGAS - June 3, 2019 - Leti, a research institute of CEA-Tech, and Silvaco Inc., a leading global provider of software, IP and services for designing chips and electronic systems for semiconductor companies, today announced, during the 56 th Design Automation Conference (DAC) in Las Vegas, a project to estimate and model the yield of ultra-low-voltage (ULV), ultra-low-leakage (ULL) static random access memory (SRAM) used in computing applications.

Mechanical Engineering - Physics - 01.04.2019
A model for describing the hydrodynamics of crowds
By studying the movement of runners at the start of marathons, researchers from the Laboratoire de physique (CNRS/ENS de Lyon/UCBL) have just shown that the collective movements of these crowds can be described as liquid flows. Their results, published in Science on January 4, 2019, have enabled them to predict how fluctuations in speed and density are transmitted through massive crowds.

Physics - 19.03.2019
Next-Generation, Low-Cost Photo-Acoustic Sensors For Gas Detection And Analysis
Next-Generation, Low-Cost Photo-Acoustic Sensors For Gas Detection And Analysis
REDFINCH Team Achieves These Capabilities in Mid-infrared Region, Where Many Important Chemical and Biological Species Have Strong Absorption Fingerprints GRENOBLE, France - March 19, 2019 - Leti, a research institute of CEA Tech, today announced prototype development of highly miniaturized, portable optical sensors for chemical detection of gas.

Innovation - Physics - 06.02.2019
CEA-Leti combines integrated optics and holography in novel lens-free, augmented reality technology
Leti, an institute of CEA-Tech, has developed a novel retinal-projection concept for augmented reality (AR) uses based on a combination of integrated optics and holography. The lens-free optical system uses disruptive technologies to overcome the limitations of existing AR glasses, such as limited field-of-view and bulky optical systems.

Physics - 05.02.2019
CEA-Leti builds prototype of next-generation mid-infrared optical sensors for portable devices
SAN FRANCISCO - Feb. CEA-Leti today announced it has prototyped a next-generation optical chemical sensor using mid-infrared silicon photonics that can be integrated in smartphones and other portable devices. Coin-size, On-chip Sensors that Combine High Performance and Low Power Consumption Presented in Paper at SPIE Photonics West 2019.

Chemistry - Physics - 21.12.2018
Fast fine art : 19th century painting tricks revealed
Fast fine art : 19th century painting tricks revealed
Paris, 9 January 2017 To paint quickly while creating exceptional texture and volume effects, J. M. W. Turner and other English artists of his generation relied on the development of innovative gels. All the rage in the 19th century—and still in use today—these compounds alter the properties of the oil paints they are combined with.

Astronomy / Space - Physics - 29.11.2018
A new method for weighing super-massive black holes
A new method for weighing super-massive black holes
Paris, 29 November 2018 Scientists have revealed, for the first time outside our Galaxy, the properties of rapidly moving gas clouds in the immediate vicinity of a super-massive black hole, enabling the mass of the black hole to be measured with unprecedented accuracy.

Chemistry - Physics - 18.09.2018
Dynamics of the excited-state hydrogen transfer in a (dG)·(dC) homopolymer: intrinsic photostability of DNA
Publication from the Chemistry laboratory in the Chemical Sciences journal on September 18, 2018. Abstract: The intrinsic photostability of nucleic acids is intimately related to evolution of life, while its understanding at the molecular and electronic levels remains a challenge for modern science.

Astronomy / Space - Physics - 10.08.2018
Parker Solar Probe : French research takes off for the Sun
Parker Solar Probe : French research takes off for the Sun
Parker Solar Probe will soon become the spacecraft to travel the closest to the Sun, by positioning itself a little over 6 million kilometers from our star's surface. During its journey within the solar corona, the NASA probe will notably have an on-board instrument developed by researchers from the CNRS, université d'Orléans, and the CNES.