Electrostatic suction type fluid discharge method and device for the same
US8235506B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 6, 2004 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Feb 20, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/105
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An electrostatic suction type fluid discharge method and device include a voltage applying means that applies a pulse voltage between a nozzle and a substrate, the nozzle having a diameter ranging from 0.01 μm to 25 μm, an upper limit voltage of the pulse voltage being equal to or greater than a discharge-inducing minimum voltage. A lower limit first voltage can be provided immediately before a rise of the pulse voltage, an absolute value of the lower limit first voltage being set smaller than the discharge-inducing minimum voltage. A lower limit second voltage can be provided immediately after a rise of the pulse voltage, an absolute value of the lower limit second voltage being set smaller than the discharge-inducing minimum voltage. With this structure, it is possible to simultaneously achieve miniaturization of nozzle, discharge of micro fluid droplet, high accuracy for discharge position, and decrease in drive voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.