A thin film material Koth to pave the way for forming electronic system
Smart clothing on only electronic products
More efficient production, a higher level of aesthetic, more environmentally friendly products
In the 2016 K show a cosmos (plastic industry exhibition) exhibited a shiny clothes. LED lamp to make it look different while the lights also play a key role, such as the protection of pedestrians and riders in order to avoid the occurrence of traffic accidents. The unique point of this dress is that the light emitting diode is not mounted on a plate or strip, but is located on a soft fabric.
The research and development of electronic system is based on the premise of no loss of function. The system includes a deformable film forming material, namely, to provide strong thermoplastic polyurethane (TPU). The thermoplastic polyurethane is copper substrate printed circuit, because of its curved shape, so that it can be bent and tensile.
The free forming electronic system brings new possibility to the fashion design, automobile, building and consumer electronic products and so on. A strong will show a light clothes. LED is not installed on the plate, but can be formed by thermoplastic polyurethane film. (photo: Fraunhof reliability and micro integrated research institute)
Intelligent technology
The intelligent circuit is produced by the effective multilevel technology. First, the copper film is coated on the polyurethane film by laminating process, and then the printed circuit with high efficiency and paste function is produced in the structure operation. The shape of the coating film was changed by the traditional thermoplastic process.
A film expert Wolfgang Stenbeck Cohn said: "this film is resistant to standard etching and engraving. The forming electronic system can also be directly laminated on the textile to make the luminous clothes."
This production technology is one of the many projects sponsored by the European Commission, in addition to STELLA and TERASEL. Development of the technology is to improve the cost efficiency of commonly used technology, the production of 2.5D circuit. Arbitrarily shaped components can be seamlessly integrated with energy saving electronic components. The production process can be used for standard printed circuit boards, and is also suitable for high current or high voltage applications.
Intelligent circuits can also meet other consumer demand, so it is an ideal choice for many industry applications. Compared with traditional electronic components, their free design space is larger, more reliable, but also can save materials and achieve sustainable development.
The forming electronic system can be directly laminated on the textile, such as luminous clothes. You can clearly see that the copper printed circuit winding can stretch bending deformation. They can be combined with energy saving elements. Standard printed circuit board equipment is also available. (photo: Fraunhof reliability and micro integrated research institute)
From functional underwear to automotive interior
This technology can bring about all kinds of wide range of applications only on smart textiles. In addition to light clothes and other fashion products, can be freely shaped electronic system is also applied in the underwear, with monitoring heart rate and respiratory function. As a result, it can help patients to carry out treatment, monitoring the training process of athletes.
TERASEL technology can also be applied to the production of functional integrated automotive interior modules. This combination process is simple and economical and can be quickly put into the market. It can also realize the designers and architects for the car interior and the new lighting concept. Designers and architects can install LED in the most needed areas.
In the consumer electronic products, the intelligent circuit can be directly combined with the product casing, and lay the foundation for the miniaturization trend of the components.
The flexible circuit board technology is the development of the European STELLA project, which can be used in the production of flexible circuit. The project is led by Fraunhof reliability and micro integration institute and Technical University of Berlin. The repeat expansion rate of the coating is 60%, which can be as high as 300% at one time.
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