About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Magnetic Materials for Energy and Power Conversion Applications
|
Presentation Title |
Oxide Thin-film Electronics for the Front-end Conditioning of Flexible Magnetic Field Sensors |
Author(s) |
Niko Münzenrieder |
On-Site Speaker (Planned) |
Niko Münzenrieder |
Abstract Scope |
Unobtrusive magnetoreception can enable innovative applications in diverse scenario ranging from the interaction of humans with virtual objects to the controlled movement of microrobots. The required biocompatible magnetic senor systems have to be cheap and conform to the movement of tissue while providing excellent sensor performance. The key to realize such systems is the integration of magnetic sensors and condoning electronics on a single large-area plastic substrate. Optimized oxide thin-film transistors provide a technology platform which is not influenced by mechanical deformation or magnetic fields and can hence be used to boost the performance of magnetic sensors by front-end conditioning. Corresponding circuits provide gain up to 50 dB at operation voltages as low as 1.7 V while being bend to radii <5 mm. Fully flexible Co/Cu GMR sensors, Wheatstone bridges and amplifiers integrated on a polymer foil result in a 50 µm-thin conformal system with a 25 V/V/kOe sensitivity. |
Proceedings Inclusion? |
Planned: |