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New densification process of thick films

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4 Author(s)
Gouverneur, S. ; CNRS, Bordeaux Univ., Talence, France ; Lucat, C. ; Menil, F. ; Aucouturier, J.-L.

Standard inks for low-cost screen-printed components generally contain a glass binder for adhesion and filling. However, for applications where the original properties of the active material must not be changed, a glass-free ink is highly desirable. To ensure a good densification of screen-printed films without inorganic binder, it is proposed that the application of a mechanical pressure be added to the standard process. This new process has been used to fabricate low-voltage single-in-line varistors, capacitors, and pyroelectric components with sandwich electrodes. Such a configuration is difficult to obtain when, as in the standard screen-printing procedure, no pressure is applied to the films. Conductors, resistors, and semiconductor chemical sensors prepared with this technology have also been investigated

Published in:

Components, Hybrids, and Manufacturing Technology, IEEE Transactions on  (Volume:16 ,  Issue: 5 )