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Your search keyword '"Coppard, Romain"' showing total 3 results
Start Over Author "Coppard, Romain" Topic organic
3 results on '"Coppard, Romain"'

1. Design of organic complementary circuits for RFID tags application.

Author

Guerin, Mathieu, Bergeret, Emmanuel, Benevent, Evangeline, Pannier, Philippe, Daami, Anis, Jacob, Stephanie, Chartier, Isabelle, and Coppard, Romain

Abstract

This paper presents organic complementary circuits that can be used in an all-organic sheet-to-sheet processed RFID tag on plastic foils. An integrated organic eight-stage rectifier reaching a 14 MHz maximum working frequency is presented, as well as a physical unclonable function generator able to generate a code depending on the organic process scattering. [ABSTRACT FROM PUBLISHER]

Published
2012
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2. Organic Complementary Logic Circuits and Volatile Memories Integrated on Plastic Foils.

Author

Guerin, Mathieu, Bergeret, Emmanuel, Benevent, Evanegline, Daami, Anis, Pannier, Philippe, and Coppard, Romain

Subjects
LOGIC circuits, METAL foils, TRANSISTORS, PERFORMANCE evaluation, SYSTEMS design, FLIP-flop circuits
Abstract

This paper presents organic based logic and memory circuits. All those circuits are made with organic N- and P-type transistors. Organic complementary nand and nor gates were characterized and show performance equivalent to or better than the literature-reported ones. The presented memory circuits include an SRAM memory point and an edge-triggered flip-flop. The flip-flop is made of six organic two-input and three-input nand gates, representing a total of 26 organic transistors for a surface of 170 mm^2. The maximum operating frequency of this flip-flop is 220 Hz under a supply of \pm20~V. All the circuits were manufactured using a standard organic sheet-to-sheet process in ambient air. Electrical characteristics remain identical after repeated measurements. Finally, a model matching the presented circuits' behavior was carried out, permitting the design of more complex circuits. [ABSTRACT FROM AUTHOR]

Published
2013
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3. High-Gain Operational Transconductance Amplifiers in a Printed Complementary Organic TFT Technology on Flexible Foil.

Author

Maiellaro, Giorgio, Ragonese, Egidio, Castorina, Alessandro, Jacob, Stephanie, Benwadih, Mohammed, Coppard, Romain, Cantatore, Eugenio, and Palmisano, Giuseppe

Subjects
THIN film transistors, ELECTRONIC amplifiers, ANALOG circuits, CAPACITOR switching, SWITCHED capacitor circuits
Abstract

This paper presents the design and experimental results of advanced analog blocks manufactured in a printed complementary organic TFT technology on flexible foil. Operational transconductance amplifiers exhibiting open-loop gain from 40 to 50 dB and gain-bandwidth product from 55 Hz to 1.5 kHz have been implemented by using different circuit topologies. An extensive amplifier characterization in both time and frequency domain (i.e., gain, gain-bandwidth product, phase margin, settling time, harmonic distortion) has been carried out, which demonstrates the performance of the adopted technology in analog circuit implementations. Finally, a 40-dB 1.5-kHz amplifier has been employed in a switched capacitor comparator that proved fully functionality up to input frequency of 50 Hz. [ABSTRACT FROM PUBLISHER]

Published
2013
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