RMIT Converts Sound Waves to Microfabrication Research

High-frequency sound waves can be used in micro and nanotechnology, technology-related medical, aerospace, consumer electronics, and transportation markets, and a technical research group (RMIT) of the Royal Melbourne Institute has been discovered in Victoria University.
In a research paper published in May, a friend of Prof. James, a director of micro-nano research institutions, and his team of researchers demonstrated how sound waves can be used to control the diffusion of thin film fluids onto specially designed chip surfaces.
This process, known as "acoustowetting," works with materials made from lithium tantalate on chips that convert electrical energy into mechanical stress. The surface of the chip is covered with a microelectrode connected to a power supply, which converts power into high-frequency sound waves. The thin film liquid is then added to the chip surface, and then sonic control flow is used.
Studies have shown that when the liquid is ultra-thin, at the nanometer and sub-micron depths, the high-frequency sound waves and acoustic waves it flows reverse the slightly thicker dimension. But when the depth reaches mm or more, the flow will reverse again and begin to leave.
Friends say that researchers have developed a portable system that is accurate, fast, and non-traditional in micro- and nano-fabrication. He said: "By optimizing the sound waves, we can create any microchip on the surface of the pattern we want. The manufacturing industry currently utilizes thin-film technology that lacks precision. We have found that thin-film liquids flow to or away from high-frequency sound waves, depending on their thickness. We are not only The discovery of this phenomenon also uncovers the complex physical processes behind it, which allows us to precisely control and directly apply microscopic and nanoscale thin-film liquids."

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