Inkjet printing of polyimide insulators for the 3D printing of dielectric materials for microelectronic applications

Zhang, Fan and Tuck, Christopher and Hague, Richard J.M. and He, Yinfeng and Saleh, Ehab and Li, You and Sturgess, Craig and Wildman, Ricky D. (2016) Inkjet printing of polyimide insulators for the 3D printing of dielectric materials for microelectronic applications. Journal of Applied Polymer Science (43361). ISSN 1097-4628

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Abstract

In this article, we report the first continuous fabrication of inkjet-printed polyimide films, which were used as insulating layers for the production of capacitors. The polyimide ink was prepared from its precursor poly(amic) acid, and directly printed on to a hot substrate (at around 160 °C) to initialize a rapid thermal imidization. By carefully adjusting the substrate temperature, droplet spacing, droplet velocity, and other printing parameters, polyimide films with good surface morphologies were printed between two conducting layers to fabricate capacitors. In this work, the highest capacitance value, 2.82 ± 0.64 nF, was achieved by capacitors (10 mm × 10 mm) with polyimide insulating layers thinner than 1 μm, suggesting that the polyimide inkjet printing approach is an efficient way for producing dielectric components of microelectronic devices. © 2016 The Authors Journal of Applied Polymer Science Published by Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43361.

Item Type: Article
RIS ID: https://nottingham-repository.worktribe.com/output/771423
Keywords: dielectric properties, manufacturing, polyimides, rheology
Schools/Departments: University of Nottingham, UK > Faculty of Engineering > Department of Mechanical, Materials and Manufacturing Engineering
Identification Number: https://doi.org/10.1002/APP.43361
Depositing User: Zhang, Fan
Date Deposited: 02 Feb 2016 15:46
Last Modified: 04 May 2020 17:29
URI: http://eprints.nottingham.ac.uk/id/eprint/31470

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