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JRM Vol.27 No.3 pp. 259-266
doi: 10.20965/jrm.2015.p0259
(2015)

Paper:

Impact Piezo-Driven Micro Dispenser and Precise Miniature XY Stage

Yuuka Irie*, Shinnosuke Hirata**, Chisato Kanamori*, and Hisayuki Aoyama*

*Department of Mechanical Engineering and Intelligent Systems, The University of Electro-Communications
1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan

**Department of Mechanical and Control Engineering, Tokyo Institute of Technology
S5-17, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan

Received:
December 2, 2014
Accepted:
March 19, 2015
Published:
June 20, 2015
Keywords:
micro dispenser, printed-electronics technology, piezo-impact drive mechanism, needle, highly viscous liquid
Abstract

Micro dispense mechanism

Recently, micro-droplet dispensation has been required in printed-electronics (PE) technology. Devices with micro dispensing mechanism are of key importance in achieving a higher performance with these products. In fact, it is very difficult for the conventional dispenser to squeeze highly viscous liquid with picoliter resolution. This paper describes the development of a dispensing mechanism comprising a dispensing device and XY stage, both driven by the piezo impulsive force. The dispensing device is mainly composed of a pipette and a taper needle that is driven by a piezoelectric element. When the needle passes through the pipette, a droplet of the liquid adheres to the needle-tip end. A micro droplet can be transcribed to a target surface by bringing the droplet at the needle-tip end in contact with the target surface. On the contrary, in the XY stage, the small tables on the V-shaped grooves can be driven by the impulsive force generated by the mass connected to the piezoelectric element. The X stage is stacked on the Y stage, which allows fine positioning in the plane. In the experiment, an array of a small amount of 0.2-picoliter droplets was successfully developed on the glass plate.

Cite this article as:
Y. Irie, S. Hirata, C. Kanamori, and H. Aoyama, “Impact Piezo-Driven Micro Dispenser and Precise Miniature XY Stage,” J. Robot. Mechatron., Vol.27, No.3, pp. 259-266, 2015.
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