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Arrangement of Microscale Particles by Electrification
The assembly of particles is one of the built-up methods of fabricating an organized structure in the range from micro- to nanometer scales. We proposed a concept for particle assemblage and have been developing a new technique to assemble microscale particles for the fabrication of two- or three- dimensionally controlled micro structures. In this paper, we describe the technique for arrangement of microscale particles that was published in previous papers. This technique is based on colloidal processing and can deposit microscale particles at specific areas on non-conductive substrates. The procedure is as follows: An electrified pattern is formed on a dielectric substrate by scanning of an electron or Ga+ ion beams. The substrate is then dipped into a suspension in which the particles are dispersed. The particles are attracted to the electrified pattern and adhere to the substrate. Spherical silica particles of 5μm diameter were used as model particles in the experiments. Two- dimensional micropatterns were fabricated from the silica spheres by trial. This technique is potentially applicable to fabricate microdevices in electronic, magnetic and optical fields.
Arrangement of Microscale Particles by Electrification
The assembly of particles is one of the built-up methods of fabricating an organized structure in the range from micro- to nanometer scales. We proposed a concept for particle assemblage and have been developing a new technique to assemble microscale particles for the fabrication of two- or three- dimensionally controlled micro structures. In this paper, we describe the technique for arrangement of microscale particles that was published in previous papers. This technique is based on colloidal processing and can deposit microscale particles at specific areas on non-conductive substrates. The procedure is as follows: An electrified pattern is formed on a dielectric substrate by scanning of an electron or Ga+ ion beams. The substrate is then dipped into a suspension in which the particles are dispersed. The particles are attracted to the electrified pattern and adhere to the substrate. Spherical silica particles of 5μm diameter were used as model particles in the experiments. Two- dimensional micropatterns were fabricated from the silica spheres by trial. This technique is potentially applicable to fabricate microdevices in electronic, magnetic and optical fields.
Arrangement of Microscale Particles by Electrification
Hiroshi Fudouzi (author) / Mikihiko Kobayashi (author) / Norio Shinya (author)
2014
Article (Journal)
Electronic Resource
Unknown
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