A charged-particle manipulator utilizing a co-axial tube electrodynamic trap with an integrated camera

Jiang, Linan; Whitten, William B.; Pau, Stanley

doi:10.1088/1748-0221/6/10/p10014

Cited by 3 publications

(2 citation statements)

References 27 publications

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“…An individual particle can be manipulated three-dimensionally by using an electrode/electrodes as the manipulation tool. A dipole probe [31][32][33][34] and a monopole [31,33,35,36] probe have also been used for the manipulation.…”

Section: Introductionmentioning

confidence: 99%

The effect of surface conductivity and adhesivity on the electrostatic manipulation condition for dielectric microparticles using a single probe

Fujiwara¹,

Hemthavy²,

Takahashi³

et al. 2016

J. Micromech. Microeng.

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By clarifying the effect of surface conductivity and adhesivity on the electrostatic manipulation condition, a dielectric particle made of any material can be manipulated with surface conductivity. The manipulation system consists of three elements: a conductive probe as a manipulator, a conductive plate as a substrate, and a dielectric particle as the target object for manipulation. The particle can be successfully picked up/placed if a rectangular pulse voltage is applied between the probe and the plate. Four kinds of particle materials are used in the experiment: silica, soda-lime glass, polymethyl methacrylate coated by conductive polymer, and polystyrene coated by surfactant. The radius of each particle is 15 μm. A first-order resistor-capacitor (RC) circuit model is adopted to describe the effect of surface conductivity and adhesivity on the manipulation condition. The manipulation system is modeled as a series circuit consisting of a resistor and a capacitor by considering the surface conductivity. A detachment voltage is defined as the capacitance voltage to detach the particle adhered to the plate or probe. Parameters of the RC model, surface resistance, surface capacitance and detachment voltage are identified by a simulation and measurements.To verify the RC model, the particle's behavior is observed by a high-speed camera, and the electrical current is measured by an electrometer. A manipulation experiment is demonstrated to show the effectiveness of the model. The particle reaction is observed for each duration and magnitude of the pulse voltage for the manipulation. The optimum pulse voltage for successful manipulation is determined by the parameters of the RC model as the standard. This knowledge is expected to expand the possibility of micro-fabrication technology.

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Section: Introductionmentioning

confidence: 99%

The effect of surface conductivity and adhesivity on the electrostatic manipulation condition for dielectric microparticles using a single probe

Fujiwara¹,

Hemthavy²,

Takahashi³

et al. 2016

J. Micromech. Microeng.

View full text Add to dashboard Cite

show abstract

“…17 Fuhr et al, 18 Moesner et al, 19 Kawamoto et al, 20 and Altintas et al 21 have been developed a manipulation system by traveling electric field on the plate with patterned electrodes. Konno et al, 22 Kawamoto,23 and Jiang et al 24 have developed a manipulation system by a dipole probe that involves multiple electrodes. Kawamoto et al have developed a manipulation system by a monopole pin electrode.…”

Section: Introductionmentioning

confidence: 99%

Pulse voltage determination for electrostatic micro manipulation considering surface conductivity and adhesion of glass particle

et al. 2015

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A model with surface conductivity and adhesional force is proposed to investigate the mechanism for electrostatic micro manipulation of a dielectric object using a single probe. The manipulation system consists of three elements: a conductive probe as a manipulator, a conductive plate as a substrate, and a dielectric particle as the target object for manipulation. The particle can be successfully picked up/placed if a rectangular pulse voltage is applied between the probe and the plate. The reliability of the picking up/placing operation is improved by applying a pulse voltage that is determined by a theoretical model considering surface conductivity and adhesion. To verify the theoretical prediction, manipulation experiment is conducted using soda-lime glass particles with radii of 20 μm and 40 μm.

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Humidity dependence of electrostatic pick-and-place operation of a micro dielectric particle considering surface conductivity and capillary condensation

Fujiwara

Iguchi

Takahashi

et al. 2018

Journal of Applied Physics

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Relative humidity dependence on electrostatic pick-and-place operation is investigated to improve the reliability of micro-manipulation. The manipulation system consists of three elements: a conductive probe as a manipulator, a conductive plate as a substrate, and a dielectric particle as the target object for manipulation. To pick up/place the particle, a rectangular pulse voltage is applied to the probe. Capillary condensation at the particle-plate interface is theoretically considered to evaluate a detachment voltage (the voltage to detach the particle). Surface conductivity of the particle is theoretically considered to evaluate a detachment time (the time for detaching the particle). Experiments are conducted in relative humidities of 30%, 40%, 50%, and 60% by using a soda-lime glass particle with a diameter of 30 μm. It is clarified that the detachment voltage increases and the detachment time decreases by increasing relative humidity. The particle can be successfully picked up/placed by clarifying the effect of relative humidity on the detachment voltage and the detachment time. This knowledge, relative humidity dependence on electrostatic pick-and-place operation, will contribute to micro-fabrication technology by enhancing adaptability in various atmospheric conditions.

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A charged-particle manipulator utilizing a co-axial tube electrodynamic trap with an integrated camera

Cited by 3 publications

References 27 publications

The effect of surface conductivity and adhesivity on the electrostatic manipulation condition for dielectric microparticles using a single probe

The effect of surface conductivity and adhesivity on the electrostatic manipulation condition for dielectric microparticles using a single probe

Pulse voltage determination for electrostatic micro manipulation considering surface conductivity and adhesion of glass particle

Humidity dependence of electrostatic pick-and-place operation of a micro dielectric particle considering surface conductivity and capillary condensation

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