Title:
ULTRA-SMALL DIAMETER FLUID JET DEVICE
Document Type and Number:
WIPO Patent Application WO/2003/070381
Kind Code:
A1
Abstract:
An ultra-small diameter fluid jet device having a base plate disposed close to the tip of a nozzle of ultra-small diameter to which a solution is fed, with a voltage of optional waveform being applied to the solution in the nozzle to thereby deliver liquid drops of ultra-small diameter to the base plate surface, wherein a nozzle is installed whose electric field strength in the vicinity of the tip of the nozzle that attends on the reduction of the nozzle diameter is sufficiently high as compared with the electric field acting between the nozzle and the base plate, the jet device utilizing the Maxwell stress and the electro-wetting effect and reducing the conductance as by the reduction of the nozzle diameter, increasing the ability of controlling the amount of delivery by voltage, and wherein the use of relaxation of evaporation by electrically charged liquid drops and acceleration of liquid drops by electric field exceedingly increases touchdown accuracy.
Inventors:
MURATA KAZUHIRO (JP)
Application Number:
PCT/JP2003/001873
Publication Date:
August 28, 2003
Filing Date:
February 20, 2003
Export Citation:
Assignee:
NAT INST OF ADVANCED IND SCIEN (JP)
MURATA KAZUHIRO (JP)
MURATA KAZUHIRO (JP)
International Classes:
B05B5/025; B05B5/053; B05B5/08; B41J2/06; B05C5/00; B41J2/01; B41J2/04; B41J2/14; B82B3/00; H05K3/10; (IPC1-7): B05B5/035; B05B5/08; B41J2/01
Foreign References:
| JP2001038911A | 2001-02-13 | |||
| JPH0627652U | 1994-04-12 | |||
| JP2001232798A | 2001-08-28 | |||
| JP2001239670A | 2001-09-04 | |||
| JP2001038911A | 2001-02-13 |
Other References:
See also references of EP 1477230A4
Attorney, Agent or Firm:
Iida, Toshizo (Shimbashi 3-chome Minato-ku, Tokyo, JP)
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