| Title |
Fabrication of MEMS Inkjet Head for Drop-on-Demand Ejection of Electrostatic Force Method |
| Authors |
손상욱(Son, S.U.) ; 김영민(Kim, Y.M.) ; 최재용(Choi, J.Y.) ; 고한서(Ko, H.S.) ; 김용재(Kim, Y.J.) ; 변도영(Byun, D.Y.) ; 이석한(Lee, S.H.) |
| Keywords |
정전기 ; 잉크젯 ; 프린터헤드 ; 이젝트 Electrostatic ; Inkjet ; Print Head ; Ejector |
| Abstract |
This paper presents a novel electrostatic drop-an-demand ejector with a conductive pole inside nozzle. The MEMS fabricated pole-type nozzle shows a significant improvement in the performance and reliability of forming meniscus and generating a micro dripping mode of droplet out of the meniscus. It is verified experimentally that the use of the pole-type nozzle. The liquid is used D20+SDS+SWNT (5 %wt). The gap between upper electrode and nozzle is about 600 um. Electrostatic drop-an-demand ejection is observed when a DC voltage of 1.5 kV is applied between the control electrode and ground electrode. Droplet diameter is 100μm. |