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Theses

Capteurs à ondes élastiques confinées, sans fil et étirables : application à l'électronique imperceptible sur peau

Abstract : With the development of Internet of Things (IoT), the continuous monitoring of the human body parameters and the extreme miniaturization of devices are becoming major societal challenges. At the same time, surface acoustic wave devices (SAW devices) who are widely used in telecommunications for filtering are booming for their sensor function. It is precisely in this context, between the field of epidermal electronics and micro-acoustics that lies this thesis project. The goal is to develop a wireless temperature sensor that combines a device based on the acoustic wave technology with stretchable antennas. The use of a confined wave structure (WLAW) and a choice of suitable materials remove the need for encapsulation in the device. In the ultrathin and ultra-soft flexible format, the device can be harmoniously “tattooed” on the skin. A significant part of the work is focused on the development of the packageless devices and their optimization through different strategies (development of thin-film materials, designs). The remote interrogation is demonstrated using stretchable antennas made by transfer printing.
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https://hal.univ-lorraine.fr/tel-02526524
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Submitted on : Tuesday, March 31, 2020 - 4:19:40 PM
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  • HAL Id : tel-02526524, version 1

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Cécile Floer. Capteurs à ondes élastiques confinées, sans fil et étirables : application à l'électronique imperceptible sur peau. Science des matériaux [cond-mat.mtrl-sci]. Université de Lorraine, 2019. Français. ⟨NNT : 2019LORR0188⟩. ⟨tel-02526524⟩

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