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Stepwise current electrical sintering method for inkjet-printed conductive ink

Title
Stepwise current electrical sintering method for inkjet-printed conductive ink
Author
문승재
Keywords
FILMS
Issue Date
2014-08
Publisher
IOP PUBLISHING LTD
Citation
JAPANESE JOURNAL OF APPLIED PHYSICS, 2014, 53(5), 05HC07
Abstract
An innovative electrical current sintering technique is applied to joule-heat conductive ink by increasing current gradually through a stepwise-form. This stepwise electrical sintering technique is devised to overcome thermal damage of printed conductive ink line during electrical sintering due to its high initial resistance. To monitor a stepwise electrical sintering method, in-situ specific resistance was measured. Surface morphology of the sample was observed by field-emission scanning electron microscope. By increasing the current gradually, the conductive line can endure higher current because the specific resistance has dropped gradually during the process. Finally, enhanced final-step current produces lower specific resistance of the conductive line than that obtained from a constant current-supplying electrical sintering method without damaging printed conductive line. (C) 2014 The Japan Society of Applied Physics
URI
http://iopscience.iop.org/article/10.7567/JJAP.53.05HC07/metahttp://hdl.handle.net/20.500.11754/47916
ISSN
0021-4922; 1347-4065
DOI
10.7567/JJAP.53.05HC07
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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