Microengineered Flexible Pressure Sensors with Sacrificial Molding Layer: A Novel Fabrication Approach for Improved Performance

Recent research aims to improve the performance of flexible pressure sensors by microengineering their active layer. However, current fabrication approaches often require a trade-off between scalability, miniaturization, and performance. To overcome these limitations, we propose a novel technique th...

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Main Authors: Maria Brites Atalaia Rosa, Michael Kraft
Format: Article
Language:English
Published: MDPI AG 2024-03-01
Series:Proceedings
Subjects:
Online Access:https://www.mdpi.com/2504-3900/97/1/105
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author Maria Brites Atalaia Rosa
Michael Kraft
author_facet Maria Brites Atalaia Rosa
Michael Kraft
author_sort Maria Brites Atalaia Rosa
collection DOAJ
description Recent research aims to improve the performance of flexible pressure sensors by microengineering their active layer. However, current fabrication approaches often require a trade-off between scalability, miniaturization, and performance. To overcome these limitations, we propose a novel technique that involves stacking all sensor layers on a carrier wafer and shaping the active layer into micro-cones using a sacrificial mold. Precise miniaturization through photolithography techniques improves mapping resolution, useful for object recognition applications. This method offers enhanced ease of fabrication, versatility in shape and size, and tunability, potentially improving the efficacy of flexible pressure sensors for various applications.
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spelling doaj-art-e0c48d7e7b2e4fa6bb22e9876dfea7e52025-08-20T02:43:39ZengMDPI AGProceedings2504-39002024-03-0197110510.3390/proceedings2024097105Microengineered Flexible Pressure Sensors with Sacrificial Molding Layer: A Novel Fabrication Approach for Improved PerformanceMaria Brites Atalaia Rosa0Michael Kraft1Micro and Nanosystems (MNS), Department of Electrical Engineering (ESAT), University of Leuven, 3001 Leuven, BelgiumMicro and Nanosystems (MNS), Department of Electrical Engineering (ESAT), University of Leuven, 3001 Leuven, BelgiumRecent research aims to improve the performance of flexible pressure sensors by microengineering their active layer. However, current fabrication approaches often require a trade-off between scalability, miniaturization, and performance. To overcome these limitations, we propose a novel technique that involves stacking all sensor layers on a carrier wafer and shaping the active layer into micro-cones using a sacrificial mold. Precise miniaturization through photolithography techniques improves mapping resolution, useful for object recognition applications. This method offers enhanced ease of fabrication, versatility in shape and size, and tunability, potentially improving the efficacy of flexible pressure sensors for various applications.https://www.mdpi.com/2504-3900/97/1/105flexible pressure sensorsmicroengineeringsacrificial molding layercapacitive sensingconical microstructuresPDMS
spellingShingle Maria Brites Atalaia Rosa
Michael Kraft
Microengineered Flexible Pressure Sensors with Sacrificial Molding Layer: A Novel Fabrication Approach for Improved Performance
Proceedings
flexible pressure sensors
microengineering
sacrificial molding layer
capacitive sensing
conical microstructures
PDMS
title Microengineered Flexible Pressure Sensors with Sacrificial Molding Layer: A Novel Fabrication Approach for Improved Performance
title_full Microengineered Flexible Pressure Sensors with Sacrificial Molding Layer: A Novel Fabrication Approach for Improved Performance
title_fullStr Microengineered Flexible Pressure Sensors with Sacrificial Molding Layer: A Novel Fabrication Approach for Improved Performance
title_full_unstemmed Microengineered Flexible Pressure Sensors with Sacrificial Molding Layer: A Novel Fabrication Approach for Improved Performance
title_short Microengineered Flexible Pressure Sensors with Sacrificial Molding Layer: A Novel Fabrication Approach for Improved Performance
title_sort microengineered flexible pressure sensors with sacrificial molding layer a novel fabrication approach for improved performance
topic flexible pressure sensors
microengineering
sacrificial molding layer
capacitive sensing
conical microstructures
PDMS
url https://www.mdpi.com/2504-3900/97/1/105
work_keys_str_mv AT mariabritesatalaiarosa microengineeredflexiblepressuresensorswithsacrificialmoldinglayeranovelfabricationapproachforimprovedperformance
AT michaelkraft microengineeredflexiblepressuresensorswithsacrificialmoldinglayeranovelfabricationapproachforimprovedperformance