Russian researchers have successfully engineered and prepared for mass production a dry aerosol deposition printer. This device facilitates the rapid and relatively economical fabrication of microelectronics components utilizing nanoparticles, while completely bypassing the need for solvents, liquid inks, or binders. Information regarding this breakthrough was shared, as reported by TASS, by the MIPT Center for Scientific Communication.
This novel technology is intended for the construction of passive microelectronic components, micro-sensors, and catalytic architectures. The primary benefit of this method, according to its creators, lies in the elimination of contamination—a common issue when employing liquid inks that can degrade the final device’s performance.
In contrast to conventional photolithography, this new process negates the requirement for costly cleanrooms, vacuum equipment, and harsh chemical agents, simultaneously reducing material consumption. Consequently, this innovation holds the potential to substantially lower electronics manufacturing costs in the future.
The printer operates based on generating nanoparticles right during the deposition sequence, achieved through an electrical gas discharge. These particles are subsequently directed onto a substrate via a focused aerosol beam. The research team managed to define operational parameters ensuring the nanoparticles remain separate rather than agglomerating, allowing them to form structures of the precise dimensions and geometry required, which can then be consolidated via laser sintering.
The scientists claim the apparatus produces nanoparticles measuring between 5 and 15 nanometers, which are then employed to define conductive traces and other features on chips. Initial assessments indicate that conductors fabricated using this method exhibit performance comparable to that of silver crystals, positioning the technology as highly promising across numerous applications.
Furthermore, the technique enables the creation of nano-antennas, distinct sensor types, porous media suitable for gas detection, and inductive components. The printer developed at MIPT has successfully passed official acceptance testing and is presently moving toward initiation of full-scale commercial manufacturing.
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