FR – Page 14 – TechConnect Briefs

Ion Rejection Properties of Nanofiltration Membranes With Inhomogeneous Charge Distribution

Szymczyk A., Zhu H., Balannec B., University of Rennes 1, FR

Ion rejection properties of NF membranes with inhomogeneous fixed charge distributions are investigated theoretically. It is shown that the occurrence of spatial inhomogeneities in the fixed charge concentration may lead to an enhancement of the [...]

Ion Rejection Properties of Nanofiltration Membranes With Inhomogeneous Charge Distribution

Szymczyk A., Zhu H., Balannec B., University of Rennes 1, FR

Ion rejection properties of NF membranes with inhomogeneous fixed charge distributions are investigated theoretically. It is shown that the occurrence of spatial inhomogeneities in the fixed charge concentration may lead to an enhancement of the [...]

New Multimodal Iron Oxide Nanoparticles as Nanotools for Cancer

Benyettou F., Chebbi I., Lalatonne Y., Sainte-Catherine O., Di Benedetto M., Lecouvey M., Seksek O., Motte L., Université Paris 13, FR

The goal of this project is to elaborate new multifunctional magnetic nanovectors to vectorize biological interest molecules for therapy and diagnostic applications. Indeed, iron oxide nanoparticles, tanks to their magnetic properties, are used as contrast [...]

Innovative Nanoprobes for Multiparametric Magnetic Immunoassays: Elaboration and Characterization

Brioude A., de Beaucorps C., Alphandéry E., Benyettou F., Brioude A., Bonnin D., Weinmann P., Motte L., Lalatonne Y., Avicenne Hôspital, FR

Magnetic nanoparticles (MNPs) are commonly used for contrast enhancement in magnetic resonance imaging, as magnetic carriers in automated immunoassays instruments, or for cell concentration at the bench. They are being evaluated all over the world [...]

Guidelines for Verilog-A Compact Model Coding

Depeyrot G., Poullet F., Dolphin Integration, FR

Verilog-A has practically become the standard for developing and coding compact device models. However, contrarily to the Verilog standard, where the IEEE has defined syntax and semantic rules for both simulation and synthesis (IEEE1364-2001 and [...]

Analytical model of quantum threshold voltage in short-channel nanowire MOSFET including band structure effects

Dura J., Martinie S., Munteanu D., Jaud M-A, Barraud S., Autran J-L, CEA/LETI/MINATEC, FR

The particular shape of Gate-All-Around (GAA) nanowires allows a much higher electrostatic control of the active region than conventional devices, as required for the integration at the end-of-roadmap. This architecture is suitable for ultra-scaled devices [...]

A Continuous Compact Model of Short-Channel Effects for Undoped Cylindrical Gate-All-Around MOSFETs

Cousin B., Reyboz M., Rozeau O., Jaud M-A, Ernst T., Jomaah J., CEA/LETI/MINATEC, FR

A continuous and explicit compact model of short-channel effects (SCEs) for undoped cylindrical Gate-All-Around (GAA) MOSFETs is presented in this paper. SCEs are implemented into an analytic and continuous drain-current model based on a surface [...]

Modeling study of capacitance and gate current in strained High–K Metal gate technology: impact of Si/SiO2/HK interfacial layer and band structure model

Garetto D., Rideau D., Dornel E., Clark W.F., Tavernier C., Leblebici Y., Schmid A., Jaouen H., IBM France, FR

The importance of developing predictive modeling tools has considerably increased with the diffusion of nanoscale technologies, in which strained layers and heterojunctions determine the materials modeling complexity. A self--consistent Poisson--Schroedinger solver based on a full-band [...]

Innovative Gas Sensors for Sub-ppm Detection of Organophosphorus Nerve Agents by Chemically Functionalized Carbon Nanotube Field-Effect Transistors

Carella A., Caillier L., Clavaguera S., Celle C., Simonato J-P, CEA, FR

In this communication, we will present innovative sensors based on carbon nanotube field-effect transistors (CNT-FET) for detection of organophosphorus agents (OP, Sarin-like molecules). We have functionalized CNT with organic moieties reactive towards OPs that form [...]

Design and Control of a Zero Voltage Switching MEMS DC-DC Power Converter

Ghandour S., Despesse G., Basrour S., CEA-LETI, FR

In this paper, we present the modelling, the design, and the control of a DC-DC voltage converter using a MEMS variable capacitor. We estimate, for a 12V-10V step-down converter, an efficiency of 88% and a [...]