| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Stieglitz, Thomas
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2024Fabrication and Characterization of PDMS Waveguides for Flexible Optrodescitations
- 2023Bringing sensation to prosthetic hands—chronic assessment of implanted thin-film electrodes in humanscitations
- 2021Plasma Enhanced Atomic Layer Deposition of Iridium Oxide for Application in Miniaturized Neural Implantscitations
- 2021Reliability of Neural Implants—Effective Method for Cleaning and Surface Preparation of Ceramicscitations
- 2020Polyimide-based Thin Film Conductors for High Frequency Data Transmission in Ultra- Conformable Implantscitations
- 2020Flexible Bioelectronic Devices Based on Micropatterned Monolithic Carbon Fiber Mats
- 2020Stability of flexible thin-film metallization stimulation electrodes: analysis of explants after first-in-human study and improvement of in vivo performancecitations
- 2017Improved long-term stability of thin-film glassy carbon electrodes through the use of silicon carbide and amorphous carboncitations
- 2017On Biocompatibility and Stability of Transversal Intrafascicular Multichannel Electrodes—TIMEcitations
- 2016On biocompatibility and stability of transversal intrafascicular multichannel electrodes - TIMEcitations
- 2014Anti-inflammatory polymer electrodes for glial scar treatmentcitations
Places of action
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article
Polyimide-based Thin Film Conductors for High Frequency Data Transmission in Ultra- Conformable Implants
Abstract
<jats:title>Abstract</jats:title><jats:p>Application-specific integrated circuits (ASICs) embedded in polymers have been subject in implant manufacturing for the recent years. The increased functionality combined with good biocompatibility due to flexibility of thin implants makes them interesting for further studies. Thin-film ASICs can be used for the recording and processing of a high amount of biological signals, improving the performance of neural implants. Fabrication and analysis of gold and platinum thin-film connections are subject of this study, especially their capability as high frequency data transmission lines. Three layers of polyimide are used as flexible substrate and insulator of the traces. Various test structures were designed and fabricated, to investigate the resistance and reactance up to GHz frequencies, crosstalk and influence of vias between metallization layers. All conducting structures have a comparable design with a length of 50 mm and a metal thickness of 300 nm, while the line widths were varied. In this configuration gold and platinum thinfilm conductors are both suitable for high-frequency data transmission up to 100 MHz. This transmission frequency limit and impedances are unaffected by a wet environment and in accelerated aging tests. However, both metals show a high pass filter behavior, whose frequency behavior is mostly dependent by the self-inductance and resistance. A simplified ideal transmission model predicts the electrical behavior sufficiently and can be used to design the favored line impedance matching input impedances of the connected ASICs.</jats:p>