Enhancement of Roll-to-Roll Gravure-Printed Cantilever Touch Sensors via a Transferring and Bonding Method Article Swipe
Sang-Hoon Lee
,
Jae Hak Shin
,
Sangyoon Lee
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3390/s25030629
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3390/s25030629
Sensor miniaturization offers significant advantages, including enhanced SoC integration efficiency, reduced cost, and lightweight design. While the roll-to-roll printed electronics fabrication process is advantageous for the mass production of sensors compared to the traditional MEMS technology, producing sensors that require air gap-based 3D structures remains challenging. This study proposes an integration of roll-to-roll gravure printing with a transferring and bonding method for touch sensor fabrication. Unlike previously reported methods for sacrificial layer removal, this approach prevents stiction issues, thus enabling sensor miniaturization and providing the flexibility to select materials that minimize sensitivity degradation during scaling. For the lower part of the sensor, Ag and BaSO4 were roll-to-roll gravure-printed on a flexible PET substrate to form the bottom electrode and dielectric layer, followed by BaSO4 spin coating on the sensor’s anchor area to form a spacer. For the upper part, a water-soluble PVP sacrificial layer was roll-to-roll gravure-printed on another flexible PET substrate, followed by spin coating Ag and SU-8 to form the top electrode and the structural layer, respectively. The sacrificial layer of the upper part was removed with water to delaminate the top electrode and structural layer from the substrate, then transferred and bonded onto the spacer of the lower part. Touch sensors of three different sizes were fabricated, and their performances were comparatively analyzed along with that of an epoxy resin-based sensor, demonstrating that our sensor attained miniaturization while achieving relatively high sensitivity.
Related Topics
Concepts
Miniaturization
Fabrication
Roll-to-roll processing
Layer (electronics)
Materials science
Substrate (aquarium)
Screen printing
Stiction
Electrode
Microelectromechanical systems
Microfabrication
Printed electronics
Spin coating
Flexible electronics
Coating
Optoelectronics
Cantilever
Nanotechnology
Inkwell
Composite material
Medicine
Alternative medicine
Pathology
Oceanography
Physical chemistry
Geology
Chemistry
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/s25030629
- https://www.mdpi.com/1424-8220/25/3/629/pdf?version=1737537925
- OA Status
- gold
- Cited By
- 2
- References
- 48
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4406705835
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
-
https://openalex.org/W4406705835Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.3390/s25030629Digital Object Identifier
- Title
-
Enhancement of Roll-to-Roll Gravure-Printed Cantilever Touch Sensors via a Transferring and Bonding MethodWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2025Year of publication
- Publication date
-
2025-01-22Full publication date if available
- Authors
-
Sang-Hoon Lee, Jae Hak Shin, Sangyoon LeeList of authors in order
- Landing page
-
https://doi.org/10.3390/s25030629Publisher landing page
- PDF URL
-
https://www.mdpi.com/1424-8220/25/3/629/pdf?version=1737537925Direct link to full text PDF
- Open access
-
YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
-
https://www.mdpi.com/1424-8220/25/3/629/pdf?version=1737537925Direct OA link when available
- Concepts
-
Miniaturization, Fabrication, Roll-to-roll processing, Layer (electronics), Materials science, Substrate (aquarium), Screen printing, Stiction, Electrode, Microelectromechanical systems, Microfabrication, Printed electronics, Spin coating, Flexible electronics, Coating, Optoelectronics, Cantilever, Nanotechnology, Inkwell, Composite material, Medicine, Alternative medicine, Pathology, Oceanography, Physical chemistry, Geology, ChemistryTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
2Total citation count in OpenAlex
- Citations by year (recent)
-
2025: 2Per-year citation counts (last 5 years)
- References (count)
-
48Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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