The Athens University of Technology in Greece has just found a way to make the electronics industry cheaper in the future. The researchers successfully used laser printing to fabricate polymer circuits, avoiding possible damage to the originals caused by traditional etching methods. So far, R&D teams have used laser printing to make optoelectronic and biological sensing circuits.
Maria Kandyla of the University of Technology at Athens and researchers have used laser printing as an alternative to traditional manufacturing methods. Traditionally, the use of solution etching may cause damage to the board itself, and drying of the droplet at the outer edge may also require more effort. Laser printing avoids these problems because no solvent is required at all.
The laser passes directly through the top glass or quartz support to the polymer layer and a portion of the polymer is transferred to the receiving substrate. At present, some circuit boards have been made using this method, using polyaniline as the conductive layer material. Although this technology has been put on the agenda, there are still a lot of work and problems that need to be solved, such as whether the laser will change the composition of the polymer and so on.
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