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High-precision tabletop microplotter for flexible on-demand material deposition in printed electronics and device functionalization

Hussain, N. ORCID iD icon; Jan Nazami, M.; Ma, C.; Hirtz, M. ORCID iD icon


Microstructuring, in particular, the additive functionalization of surfaces with, e.g., conductive or bioactive materials plays a crucial role in many applications in sensing or printed electronics. Mostly, the lithography steps are made prior to assembling functionalized surfaces into the desired places of use within a bigger device as a microfluidic channel or an electronic casing. However, when this is not possible, most lithography techniques struggle with access to recessed or inclined/vertical surfaces for geometrical reasons. In particular, for “on-the-fly” printing aiming to add microstructures to already existing devices on demand and maybe even for one-time trials, e.g., in prototyping, a flexible “micropencil” allowing for direct write under direct manual control and on arbitrarily positioned surfaces would be highly desirable. Here, we present a highly flexible, micromanipulator-based setup for capillary printing of conductive and biomaterial ink formulations that can address a wide range of geometries as exemplified on vertical, recessed surfaces and stacked 3D scaffolds as models for hard to access surfaces. A wide range of feature sizes from tens to hundreds of micrometer can be obtained by the choice of capillary sizes and the on-demand in situ writing capabilities are demonstrated with completion of a circuit structure by gold line interconnects deposited with the setup.

Verlagsausgabe §
DOI: 10.5445/IR/1000141470
Veröffentlicht am 24.01.2023
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Karlsruhe Nano Micro Facility (KNMF)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 0034-6748, 1089-7623, 1527-2400
KITopen-ID: 1000141470
HGF-Programm 43.31.02 (POF IV, LK 01) Devices and Applications
Erschienen in Review of Scientific Instruments
Verlag American Institute of Physics (AIP)
Band 92
Heft 12
Seiten Art.Nr. 125104
Vorab online veröffentlicht am 07.12.2021
Schlagwörter Project-ID: 2020-025-029509, 2020-024-029291 (DPN)
Nachgewiesen in Scopus
Web of Science
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