Real time resistance monitoring during sintering of silver paste
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Date
2018-01-15
Authors
Xu, Di Erick
Kim, Jang Baeg
Hook, Michael David
Jung, Jae Pil
Mayer, Michael
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Abstract
Real time resistance monitoring technology is used to study the silver sintering process. Signals of joint resistance show events such as resistance increase to >10 GΩ, abrupt resistance drop from >10 GΩ to <1 kΩ, and gradual resistance drop to <1 mΩ. Based on cross-sectioning of samples at various stages of sintering and differential scanning calorimetry (DSC), we propose a correlation between resistance signal and solvent evaporation, capping agent degradation, and silver sintering. We identified distinct clusters of sintered silver of samples removed from the oven when the resistance drops to ∼2.94 Ω.
Description
The final publication is available at Elsevier via http://dx.doi.org/10.1016/j.jallcom.2017.10.077 © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Keywords
Non-destructive signals, Real time monitoring, Silver sintering paste, Sintering process