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♦ Visitas al IMSE
Colegio Adharaz - Altasierra
21 Febrero 2020
Alumnos de sexto de primaria del Colegio Publico Huerta del Carmen de Sevilla han visitado nuestro centro para entrevistar a la investigadora del IMSE-CNM Elisenda Roca, dentro del proyecto Wisibilízalas, cuyo objetivo principal es dar visibilidad a mujeres que trabajan en el ámbito de las TIC.
20 Febrero 2020
La investigadora del IMSE-CNM y profesora de la Universidad de Sevilla Gloria Huertas, imparte una charla titulada 'Del electrón al chip', dentro del programa de actividades de la XXX Olimpiada Española de Física.
Aula Magna de la Facultad de Física de Sevilla
7 Febrero 2020
La tesis doctoral de Fábio Moreira de Passos titulada 'A multilevel approach for the systematic design of radiofrequency integrated circuits', dirigida por los investigadores del IMSE-CNM Francisco V. Fernández y Elisenda Roca, ha sido acreedora del EDAA Outstanding Dissertation Award 2019. Es la primera vez que este prestigioso premio lo gana una universidad o centro de investigación español desde su creación en 2003.
6 Febrero 2020
El investigador del IMSE-CNM y profesor de la Universidad de Sevilla José M. de la Rosa, ha sido nombrado Editor Jefe de la revista IEEE Transactions on Circuits and Systems II: Express Briefs (TCAS-II).
Enero 2020

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El Mundo de los Chips

Oferta de servicios basados en el sistema automático de test ATE Agilent 93000

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Últimas publicaciones
INTA′s Mars miniature sensors: synergies for Ice Giants exploration  »
INTA′s Space Sensors Engineering Area (AISE) has been involved in Martian exploration during the last decade, developing four different radiometers, one magnetometer, one nephelometer (in cooperation with INAF, Italy) and one dust sensor (together with University Carlos III, Spain) for different missions (MetNet penetrator, Schiparelli Lander, Mars 2020 Rover and ExoMars 2020 Surface Platform). That is the result of a long-term strategy established ten years ago, named InMARS, devoted to the development of high performance, low power, miniature sensors capable of operating in the extreme Martian atmospheric conditions. Within this program we have developed an intensive selection, qualification and screening activity (CERES-Compact Electronic Resources for the Exploration of Space) that allowed us to acquire key enabling technologies, components (including ASICs), materials and procedures. Taking advantage of the experience and heritage accumulated during this decade, we propose an early concept of a lightweight radiometer for future probes to Ice Giants or other moons with rich atmospheres for the study of the suspended aerosols scattering properties, the particles number density, constraining the aerosol shape, size and opacity. The limited resources that our technology demands from the platform allow it to be used as a complement to other atmospheric instrumentation included in future missions.

Conference - Ice Giants Systems 2020 (Royal Society)
V. Apéstigue, I. Arruego, D. Toledo, J. Martínez-Oter, M. González-Guerrero, J. Rivas, J.R. de Mingo, J. Manzano, F. Serrano, E. García-Menéndez, A. Martín-Ortega, N.S. Montalbo, J. Núñez, L. Gómez, M. Yela, S. Espejo, J. Ceballos and D. Vázquez
Sound Source Localization in Wide-Range Outdoor Environment using Distributed Sensor Network  »
Sound source localization has always been one of the most challenging subjects in different fields of engineering, one of the most important of which being tracking of flying objects. This article focuses on sound source localization using fuzzy fusion and a beamforming method. It proposes a new fuzzy-based algorithm for localizing a sound source using distributed sensor nodes. Eight low-cost sensor nodes have been constructed in this study each of which consists of a microphone array to capture sound waves. Each node is able to record audio signals synchronously on an SD card to evaluate different algorithms offline. However, the sensor nodes are designed to be able to estimate the location of the sound source in real-time. In the proposed algorithm, every node estimates the direction of the sound source. Moreover, a calibration algorithm is used for extracting the orientation of sensor nodes to calibrate the estimated directions. The calibrated directions are fuzzified and then used for localizing the sound source by fuzzy fusion. An experiment was designed based on localizing a flying quadcopter as a moving sound source to evaluate the performance of the proposed algorithm. The flying trajectory was then estimated and compared with the target trajectory extracted from the GPS module mounted on the quadcopter. Comparing the estimated sound source with the target location, a mean distance error of ${6.03}{m}$ was achieved in a wide-range outdoor environment with the size of ${240}\times {160}\times {80} \,\,{m}^{{3}}$ . The achieved mean distance error is reasonable regarding the mean precision of the GPS module. The practical results illustrate the effectiveness of the proposed approach in localizing a sound source in a wide-range outdoor environment.

Journal Paper - IEEE Sensors Journal, vol. 20, no. 4, pp 2234-2246, 2020 IEEE
DOI: 10.1109/JSEN.2019.2950447    ISSN: 1530-437X    » doi
M. Faraji, S.B. Shouraki, E. Iranmehr and B. Linares-Barranco
A robust and automated methodology for the analysis of Time-Dependent Variability at transistor level  »
In the past few years, Time-Dependent Variability has become a subject of growing concern in CMOS technologies. In particular, phenomena such as Bias Temperature Instability, Hot-Carrier Injection and Random Telegraph Noise can largely affect circuit reliability. It becomes therefore imperative to develop reliability-aware design tools to mitigate their impact on circuits. To this end, these phenomena must be first accurately characterized and modeled. And, since all these phenomena reveal a stochastic nature for deeply-scaled integration technologies, they must be characterized massively on devices to extract the probability distribution functions associated to their characteristic parameters. In this work, a complete methodology to characterize these phenomena experimentally, and then extract the necessary parameters to construct a Time-Dependent Variability model, is presented. This model can be used by a reliability simulator.

Journal Paper - Integration, vol. 72, pp 13-20, 2020 ELSEVIER
DOI: 10.1016/j.vlsi.2020.02.002    ISSN: 0167-9260    » doi
P. Saraza-Canflanca, J. Diaz-Fortuny, R. Castro-Lopez, E. Roca, J. Martin-Martinez, R. Rodriguez, M. Nafria and F.V. Fernandez
Phase Transition Device for Phase Storing  »
Nano-oscillators based on phase transitions materials (PTM) are being explored for the implementation of different non-conventional computing paradigms. This paper describes the capability of such autonomous non-linear oscillators to store phase-encoded information. A latch based in sub-harmonic injection locking using an oscillator composed of a PTM device and a transistor is described. Resistive coupling is used to inject both a required synchronization signal and the input to be stored. Operation of the proposed latch implementation, the embedding of functionality into the latch and its application to frequency division are illustrated and validated by simulation.

Journal Paper - IEEE Transactions on Nanotechnology, vol. 19, pp 107-112, 2020 IEEE
DOI: 10.1109/TNANO.2020.2965243    ISSN: 1536-125X    » doi
M.J. Avedillo, J.M. Quintana and J. Núñez
Incoming Editorial  »
Dear Readers, It is a great honor and privilege for me to start my two-year term of duty as Editor-in-Chief (EiC) of IEEE Transactions on Circuits and Systems - Part II: Express Briefs (TCAS-II) and I am very thankful to the IEEE Circuits and Systems Society (CASS) for giving me this opportunity. During the last four years, I have been very fortunate to work as Deputy Editor-in-Chief (DEiC) of TCAS-II together with Professor C.K. Michael Tse, who has set the bar very high for me! I would like to begin this first issue of TCAS-II in 2020 by expressing my most sincere and warm gratitude to Professor Tse for his great job, dedication, and guidance during all this time working together. I learned a lot from him. Thank you so much, Michael!

Journal Paper - IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 67, no.1, pp 1-3, 2020 IEEE
DOI: 10.1109/TCSII.2019.2956327    ISSN: 1549-7747    » doi
J.M. de la Rosa

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Última actualización: 27.02.2020
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