Now showing items 21-40 of 67

    • Design of a broadband CMOS RF power amplifier to establish device-circuit aging correlations 

      Barajas Ojeda, Enrique; Mateo Peña, Diego; Aragonès Cervera, Xavier; Crespo Yepes, Albert; Rodríguez Martínez, Rosana; Martin Martínez, Javier; Nafría Maqueda, Montserrat (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - publisher's policy
      This paper presents the design of a Broadband CMOS RF Power Amplifier, suitable to be stressed at circuit level but with the possibility to be measured both at circuit and at device level. It allows establishing a relation ...
    • Development of the readout software for flexible, high-density neural probes 

      Sadurní Wider, Arnau (Universitat Politècnica de Catalunya, 2018-06)
      Bachelor thesis
      60 months embargo
      This project has been developed in Neuro-Electronic Research Flandes (NERF), with the main purpose of developing a readout software based on the open-source project Open Ephys, consisting in commercial silicon chips for ...
    • Development of thin films deposited by ALD for c-Si solar cells 

      Pérez Guardia, Javier (Universitat Politècnica de Catalunya, 2017-01)
      Bachelor thesis
      Open Access
      In this work, we have developed thin layers deposited by Atomic Layer Deposition (ALD) technique to be applied in high-efficiency crystalline silicon solar cells. In particular, we selected to study the aluminium oxide ...
    • Development of Vapor Deposition Processes for OLEDs 

      Lungu, Alexandru-Andrei (Universitat Politècnica de Catalunya, 2014-09-28)
      Bachelor thesis
      Open Access
      Covenantee:   Universität Stuttgart
      This bachelor thesis describes the development of vapour deposition processes for the creation of a warm white OLED. An OLED is a layer or a stack of organic materials situated between two electrodes, which emits light ...
    • Dielectric charge control in electrostatic MEMS positioners/varactors 

      Blokhina, Elena; Gorreta Mariné, Sergio; Lopez, David; Molinero Giles, David; Feely, Orla; Pons Nin, Joan; Domínguez Pumar, Manuel (2012-06)
      Article
      Restricted access - publisher's policy
      A new dynamical closed-loop method is proposed to control dielectric charging in capacitive microelectromechanical systems (MEMS) positioners/varactors for enhanced reliability and robustness. Instead of adjusting the ...
    • Diffusion-based physical channel identification in molecular nanonetworks 

      Garralda, N.; Llatser Martí, Ignacio; Cabellos Aparicio, Alberto; Alarcón Cot, Eduardo José; Pierobon, Massimiliano (2011-12)
      Article
      Restricted access - publisher's policy
      Nanonetworking is an emerging field of research at the intersection of nanotechnology and communication networks. Molecular Communication (MC) is a bio-inspired paradigm, where nanonetworks, i.e., the interconnection of ...
    • Discrete-time modelling of Sigma-Delta Inspired Systems for MEMS 

      Blokhina, Elena; Giounanlis, Panagiotis; Domínguez Pumar, Manuel; Gorreta Mariné, Sergio; Pons Nin, Joan; Feely, Orla (Springer, 2015)
      Part of book or chapter of book
      Restricted access - publisher's policy
    • Diseño de la línea de montaje y realización de un plan de producción del sembrador automático Autoplak de NTE-SENER 

      Sánchez Izquierdo, Pol (Universitat Politècnica de Catalunya, 2015-11)
      Master thesis (pre-Bologna period)
      Open Access
      La empresa de ingeniería NTE-SENER ha desarrollado un dispositivo llamado Autoplak que automatiza el proceso de sembrado de muestras de laboratorio en placas Petri con el fin de que se desarrolle un cultivo microbiano ...
    • Disseny i contrucció d'un circuit per detectar moviments d'objectes de color 

      Martí López, Judit (Universitat Politècnica de Catalunya, 2017-06-15)
      Bachelor thesis
      Open Access
      En aquest projecte s’ha dissenyat i construït un sistema electrònic basat en un microcontrolador PIC que, a partir d’un sensor detector de color i proximitat, identifica els components RGB del color de l’objecte acostat. Les ...
    • Effect of amorphous silicon carbide layer thickness on the passivation quality of crystalline silicon surface 

      Ferré Tomas, Rafel; Martín García, Isidro; Vetter, Michael; Garin Escriva, Moises; Alcubilla González, Ramón (American Institute of Physics, 2005-11-09)
      Article
      Restricted access - publisher's policy
      Surface passivation of p-type crystalline silicon wafers by means of phosphorus-doped hydrogenated amorphous silicon carbide films [a-SiCx(n):H] has been investigated. Particularly, we focused on the effects of layer ...
    • Electro-thermal coupling analysis methodology for RF circuits 

      Gómez Salinas, Didac; Dufis, Cédric Yvan; Altet Sanahujes, Josep; Mateo Peña, Diego; González Jiménez, José Luis (2012-09)
      Article
      Restricted access - publisher's policy
      In this paper an electro-thermal co-simulation methodology suitable for RF circuits is presented. It circumvents traditional transient simulation drawbacks that arise when signals or magnitudes whose frequencies are separated ...
    • Espectroscopia de impedancias aplicada a dispositivos semiconductores 

      Sinde Carbajo, Daniel Carlos (Universitat Politècnica de Catalunya, 2016-10)
      Master thesis (pre-Bologna period)
      Open Access
      Este proyecto consiste en el análisis y diseño de células solares de altas prestaciones de diferentes estructuras y características físicas, y otros dispositivos como un microcondensador de gran capacidad (supercondensador), ...
    • Exploiting dimensionality and defect mitigation to create tunable microwave dielectrics 

      Lee, Che-Hui; Orloff, Nathan D.; Birol, Turan; Rocas Cantenys, Eduard (2013-10)
      Article
      Restricted access - publisher's policy
      The miniaturization and integration of frequency-agile microwave circuits-relevant to electronically tunable filters, antennas, resonators and phase shifters-with microelectronics offers tantalizing device possibilities, ...
    • Gas sensing structures based on metal oxides 

      Hontoria Gámez, Marc (Universitat Politècnica de Catalunya, 2017)
      Bachelor thesis
      Open Access
      Covenantee:   Slovenská technická univerzita v Bratislave
      The purpose of this thesis has been to learn and describe the main concepts about gas sensors based on metal oxides, in order to apply them to real life problems by performing experiments in the framework of an international ...
    • High voltage ultrathin-photovoltaic minimodules: fabrication technology and application to bioimplantable telesupplying 

      Bermejo Broto, Sandra; Silvestre Bergés, Santiago; Ortega Villasclaras, Pablo Rafael (2014-05-01)
      Article
      Restricted access - publisher's policy
      In this work we show small (0.49 cm2) and thin (<70 µm) photovoltaic mini-generators capable of providing open circuit voltages up to 99 V and short circuit currents of 43 µA, achieving a maximum density power of 4.8 mW/cm2. ...
    • Hole-selective contacts by RF magnetron sputtering for silicon heterojunction solar cell structures 

      Perea Causín, Raül (Universitat Politècnica de Catalunya, 2017-06)
      Bachelor thesis
      Open Access
      Research in photovoltaic devices is focusing towards cost-effective technologies to compete with traditional energy sources. In this sense, silicon heterojunction (SHJ) solar cells have excelled owing to their high efficiency ...
    • Implementación de películas magnetorresistivas Co-Ag electrodepositadas en dispositivos microelectrónicos 

      García Torres, José Manuel (Universitat Politècnica de Catalunya, 2010-10)
      Master thesis (pre-Bologna period)
      Open Access
      Debido a la progresiva automatización que está experimentado el entorno que nos rodea y en respuesta a las exigencias de la sociedad actual, científicos e ingenieros de la industria microelectrónica han dedicado parte ...
    • Improvement of crystalline silicon surface passivation by hidrogen plasma treatment 

      Martín García, Isidro; Vetter, Michael; Orpella García, Alberto; Voz Sánchez, Cristóbal; Puigdollers i González, Joaquim; Alcubilla González, Ramón; Kharchenko, A.V.; Roca i Cabarrocas, Pere (American Institute of Physics, 2004-03-01)
      Article
      Restricted access - publisher's policy
      A completely dry low-temperature process has been developed to passivate 3.3 Ωcm p-type crystalline silicon surface with excellent results. Particularly, we have investigated the use of a hydrogen plasma treatment, just ...
    • Inductor shielding strategies to protect mmW LC-VCOs from high frequency substrate noise 

      Molina García, Marc; Aragonès Cervera, Xavier; Mateo Peña, Diego; González Jiménez, José Luis (2013-05-01)
      Article
      Restricted access - publisher's policy
      This paper analyzes the impact of high-frequency substrate noise on two 60 GHz LC-VCOs that implement different strategies for inductor shielding, namely floating and grounded shields. An analytical model, which has ...
    • Integration of GMR sensors with different technologies 

      Cubells Beltrán, M. Dolores; Reig Escriva, Abilio Càndid; Madrenas Boadas, Jordi; De Marcellis, A.; Santos, Joana; Cardoso, Susana; Freitas, P.P. (2016-06-01)
      Article
      Open Access
      Less than thirty years after the giant magnetoresistance (GMR) effect was described, GMR sensors are the preferred choice in many applications demanding the measurement of low magnetic fields in small volumes. This rapid ...