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http://dx.doi.org/10.18419/opus-14122
Autor(en): | Saleh, Rafat Schütt, Sophie Barth, Maximilian Lang, Thassilo Eberhardt, Wolfgang Zimmermann, André |
Titel: | Assembly of surface-mounted devices on flexible substrates by isotropic conductive adhesive and solder and lifetime characterization |
Erscheinungsdatum: | 2022 |
Dokumentart: | Zeitschriftenartikel |
Seiten: | 12 |
Erschienen in: | Micromachines 13 (2022), No. 1240 |
URI: | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-141418 http://elib.uni-stuttgart.de/handle/11682/14141 http://dx.doi.org/10.18419/opus-14122 |
ISSN: | 2072-666X |
Zusammenfassung: | The assembly of passive components on flexible electronics is essential for the functionalization of circuits. For this purpose, adhesive bonding technology by isotropic conductive adhesive (ICA) is increasingly used in addition to soldering processes. Nevertheless, a comparative study, especially for bending characterization, is not available. In this paper, soldering and conductive adhesive bonding of 0603 and 0402 components on flexible polyimide substrates is compared using the design of experiments methods (DoE), considering failure for shear strength and bending behavior. Various solder pastes and conductive adhesives are used. Process variation also includes curing and soldering profiles, respectively, amount of adhesive, and final surface metallization. Samples created with conductive adhesive H20E, a large amount of adhesive, and a faster curing profile could achieve the highest shear strength. In the bending characterization using adhesive bonding, samples on immersion silver surface finish withstood more cycles to failure than samples on bare copper surface. In comparison, the samples soldered to bare copper surface finish withstood more cycles to failure than the soldered samples on immersion silver surface finish. |
Enthalten in den Sammlungen: | 07 Fakultät Konstruktions-, Produktions- und Fahrzeugtechnik |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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micromachines-13-01240-v2.pdf | 5 MB | Adobe PDF | Öffnen/Anzeigen |
Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons