Instrument for fine control of drop-on-demand electrohydrodynamic jet printing by current measurement

In this paper, mechanical aspects of magnetic recording technology and nonimpact printing are discussed. In the recording area, theoretical and experimental aspects of air bearing theory, head/disk dynamics, and head/disk tribology are studied. Flutter of rotating disks is investigated, the flow field between rotating disks is described, and nonrepeatable run-out of disk file spindles is studied. Furthermore, the head/disk interface for flexible media is discussed and dimensional stability of flexible substrate is examined. In the printing area, experimental and theoretical investigations using continuous and drop-on-demand fluid jets are presented, and numerical calculations of the drop formation process in drop-on-demand fluid jets are described.

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Ag dot morphologies printed using electrohydrodynamic (EHD) jet printing based on a drop-on-demand (DOD) operation

Journal of Micromechanics and Microengineering ◽

10.1088/0960-1317/23/9/095028 ◽

2013 ◽

Vol 23 (9) ◽

pp. 095028 ◽

Cited By ~ 33

Author(s):

Fariza Dian Prasetyo ◽

Hadi Teguh Yudistira ◽

Vu Dat Nguyen ◽

Doyoung Byun

Keyword(s):

On Demand ◽

Drop On Demand ◽

Jet Printing

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Ink Jet printing of mammalian primary cells for tissue engineering applications

MRS Proceedings ◽

10.1557/proc-845-aa2.8 ◽

2004 ◽

Vol 845 ◽

Cited By ~ 2

Author(s):

Rachel Saunders ◽

Julie Gough ◽

Brian Derby

Keyword(s):

Cell Types ◽

Human Osteoblast ◽

Primary Cells ◽

Drop Velocity ◽

Primary Human Osteoblast ◽

On Demand ◽

Drop On Demand ◽

Ink Jet ◽

Jet Printing ◽

Robust Response

ABSTRACTA piezoelectric drop on demand printer has been used to print primary human osteoblast and bovine chondrocyte cells. After deposition the cells were incubated at 37°C and characterised using optical microscopy, SEM and cell viability assays. Cells showed a robust response to printing exhibiting signs of proliferation and spreading. Increasing the drop velocity results in a reduced cell survival and proliferation rates but both cell types grew to confluence after printing under all conditions studied.

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Solid freeforming of ceramics using a drop-on-demand jet printer

Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture ◽

10.1243/0954405971516194 ◽

1997 ◽

Vol 211 (3) ◽

pp. 211-214 ◽

Cited By ~ 60

Author(s):

Q F Xiang ◽

J R G Evans ◽

M J Edirisinghe ◽

P F Blazdell

Keyword(s):

Solid Oxide Fuel Cells ◽

Complex Shape ◽

Ceramic Composites ◽

Solid Oxide ◽

Oxide Fuel ◽

On Demand ◽

Drop On Demand ◽

Ceramic Components ◽

Jet Printing ◽

Direct Solid

The formulation of a stabilized ceramic ink and the adaptation of a piezoelectric-activated drop- on-demand jet printer with a 65 mm nozzle for the direct solid freeforming of ceramics by multilayer jet printing is reported. The procedure has exciting implications for the miniaturization of ceramic circuits and for the fabrication of solid oxide fuel cells, ordered ceramic composites and small monolithic ceramic components of complex shape.

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Direct Ink-Jet Deposition of Ceramic Green Bodies: I - Formulation of Build Materials

MRS Proceedings ◽

10.1557/proc-542-141 ◽

1998 ◽

Vol 542 ◽

Cited By ~ 5

Author(s):

K. A. M. Seerden ◽

N. Reis ◽

B. Derby ◽

P. S. Grant ◽

J. W. Halloran ◽

...

Keyword(s):

Rapid Prototyping ◽

Stearic Acid ◽

On Demand ◽

Direct Deposition ◽

Drop On Demand ◽

Ink Jet ◽

Jet Printing ◽

Printing System ◽

Ceramic Suspensions ◽

Materials Used

AbstractA conventional rapid prototyping technology has been used to build prototypes using direct deposition through a drop-on-demand ink-jet printing system. Al2O3 - filled waxes have been developed with viscosity values close to those of the materials used in commercial printing systems. Commercial dispersants based on stearic acid and sterylamine have been studied and stable ceramic suspensions with ceramic volume fractions in the range 20–40 volume% produced with suitable viscosity. A suspension of 20% Al2O3 in an alkane wax has been successfully printed.

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Photoacoustic ejection from a nozzle (PEN) for drop-on-demand ink jet printing

Applied Optics ◽

10.1364/ao.21.001891 ◽

1982 ◽

Vol 21 (11) ◽

pp. 1891 ◽

Cited By ~ 9

Author(s):

A. C. Tam ◽

W. D. Gill

Keyword(s):

Ink Jet Printing ◽

On Demand ◽

Drop On Demand ◽

Ink Jet ◽

Jet Printing

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Deposition of Molten Eutectic Solder using Jet Printing Techniques

MRS Proceedings ◽

10.1557/proc-390-201 ◽

1995 ◽

Vol 390 ◽

Cited By ~ 2

Author(s):

Michael D. Snyder ◽

Ronald Lasky

Keyword(s):

Surface Tension ◽

Circuit Boards ◽

Eutectic Solder ◽

On Demand ◽

Drop On Demand ◽

Single Feature ◽

Ink Jet ◽

Jet Printing ◽

Printing Techniques ◽

Large Spherical

ABSTRACTThis paper discusses the use of Ink Jet printing techniques to dispense small (50 to 75 micrometer diameter) particles of molten eutectic solder individually at programmable dispense rates from drop on demand to several thousand per second. Alternative jet dispensing techniques are discussed. The technology could allow the selective application of programmable amounts of solder on precision circuit boards and wafer substrates, while avoiding the high cost and flexibility limits associated with hard tooling. Large solder features can be constructed by dispensing individual droplets and relying on surface tension to draw them together to form a large single feature. Alternatively, columnar features can be created by successively dispensing solder droplets at the same site, allowing time between successive droplets to avoid forming a single large spherical feature.Several potential application areas in industry are discussed along with some of the issues associated with the projected performance of the method in the accuracy and speed domains.

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