TY - GEN
T1 - Fabrication and performance analysis of electrostatic micro-droplet ejector
AU - Son, Sang Uk
AU - Oh, Jeong Taek
AU - Lee, Sukhan
AU - Ko, Han Seo
AU - Kim, Yongjae
AU - Byun, Doyoung
AU - Yang, Jihye
AU - Kim, Hyeon Cheol
PY - 2005
Y1 - 2005
N2 - This paper proposes a monolithic fabrication and Performance Analysis Electrostatic Micro-droplet Ejector. Unlike conventional electrostatic Jetting which requires a high operating voltage, we offer a, commercially viable, low operating voltage for droplet-on-demand operation based on a monolithic electrode structure of nozzle. The monolithic electrode structure of nozzle allows the formation, acceleration, and ejection of a droplet to be controlled by the voltage signals applied to control electrodes. The ground electrode is designed to have Hole-tip shape. A holetip type ground electrode gives the electric field stronger than that for the bottom ground electrode. And ejection hole is coated a hydrophobic material (Teflon). So the liquid formed convex geometric shape of the meniscus between the hydrophilic and Hydrophobic surfaces through the hydrophilic micro channel by capillary attraction. Formation and ejection in hydrophobic coating channel shows that stable D-type Jetting property compared with hydrophilic coating channel.
AB - This paper proposes a monolithic fabrication and Performance Analysis Electrostatic Micro-droplet Ejector. Unlike conventional electrostatic Jetting which requires a high operating voltage, we offer a, commercially viable, low operating voltage for droplet-on-demand operation based on a monolithic electrode structure of nozzle. The monolithic electrode structure of nozzle allows the formation, acceleration, and ejection of a droplet to be controlled by the voltage signals applied to control electrodes. The ground electrode is designed to have Hole-tip shape. A holetip type ground electrode gives the electric field stronger than that for the bottom ground electrode. And ejection hole is coated a hydrophobic material (Teflon). So the liquid formed convex geometric shape of the meniscus between the hydrophilic and Hydrophobic surfaces through the hydrophilic micro channel by capillary attraction. Formation and ejection in hydrophobic coating channel shows that stable D-type Jetting property compared with hydrophilic coating channel.
KW - Electrostatic inkjet print head
KW - Hole-Tip shape ground
KW - Monolithic electrode
UR - https://www.scopus.com/pages/publications/33748890295
U2 - 10.1109/ICMECH.2005.1529266
DO - 10.1109/ICMECH.2005.1529266
M3 - Conference contribution
AN - SCOPUS:33748890295
SN - 0780389980
SN - 9780780389984
T3 - Proceedings of the 2005 IEEE International Conference on Mechatronics, ICM '05
SP - 266
EP - 269
BT - Proceedings of the 2005 IEEE International Conference on Mechatronics, ICM '05
T2 - 2005 IEEE International Conference on Mechatronics, ICM '05
Y2 - 10 July 2005 through 12 July 2005
ER -