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A review on in-mold electronics technology

In Mold Decoration (IMD) with printed electronic films combines the printed functional film with the IMD process, creating a product with embedded electronic functions that requires much less space compared to previous technologies. In Mold Electronics (IME) is a process of integrating printed decor...

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Bibliographic Details
Published in:Polymer engineering and science 2022-04, Vol.62 (4), p.967-990
Main Authors: Beltrão, Mariana Martins, Duarte, F. M., Viana, J. C., Paulo, Vitor
Format: Article
Language:English
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Summary:In Mold Decoration (IMD) with printed electronic films combines the printed functional film with the IMD process, creating a product with embedded electronic functions that requires much less space compared to previous technologies. In Mold Electronics (IME) is a process of integrating printed decorations and functional electronics with IMD (i.e., thermoforming and injection molding), resulting in 3D-shaped objects with embedded electronic functions. This technique is a field of recent large technological and scientific interests due to its wide application, aesthetically appealing, and durable and lighter functional products. This paper reviews the state-of-the-art of IME technology, resorting to scientific research work performed and its main outputs, compiling and analyzing the main knowledge and achievements on the process up to date. First, an overview of the IME process steps is given, as well as, its components, main applications, advantages, and drawbacks. The main IME printing technologies are listed, and the relevant material parameters of the foil and of the conductive inks for the printing process are also discussed. The effects of the thermoforming and injection molding steps on the foil behavior and final product are also addressed. Main challenges still to overcome on the IME technology are presented. European Social Fund (ESF), PT2020, Grant/Award Number: I&DPIIMIO - POCI-01-0247-FEDER-042832; FCT - Fundação para a Ciência e Tecnologia, Portugal, Grant/Award Numbers: UIDB/05256/2020, UIDP/05256/2020
ISSN:0032-3888
1548-2634
DOI:10.1002/pen.25918