David Savastano, Editor11.07.14
The decision between types of substrates, whether it is paper, plastic film, metal or other, is critical in the design of printed electronics systems. Each of these substrates has its advantages and disadvantages. Whether one selects polyethylene terephthalate (PET), polyethylene-naphthalate (PEN), polyimide (PI), paper, foil or some other substrate, the performance characteristics of the substrate will impact the application.
Stefano Favero, division manager, Coveme Spa, noted that Coveme is a PET converter and buys polyester from major suppliers around the world. Coveme adds value to PET with specific treatments: functional coatings, temperature treatments or lamination.
“The PE industry is focusing on using PET, which is more resistant to tearing and humidity compared to paper, for instance, and cheaper than hi-temp solutions such as PI,” Favero noted. “PET has nice features, but these have to be controlled; I think about its natural shrinkage or the rolls&rs
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