Lead-free piezo printhead using thinned bulk material

An apparatus for a lead-free piezoelectric ink-jet printhead is disclosed. Piezoelectric printheads, while more expensive are favored because they use a wider variety of inks. The piezoelectric printhead includes a diaphragm, a plurality of piezoelectric actuators comprising a lead-free piezoelectri...

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Bibliographische Detailangaben
Hauptverfasser:	Nystrom, Peter J, Kim, Seunghyun, Mostovych, Nicholas, Redding, Gary D, Kingon, Angus Ian
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE CORRECTION OF TYPOGRAPHICAL ERRORS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LIME, MAGNESIA LINING MACHINES METALLURGY PERFORMING OPERATIONS PRINTING REFRACTORIES SELECTIVE PRINTING MECHANISMS SLAG STAMPS TRANSPORTING TREATMENT OF NATURAL STONE TYPEWRITERS
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Beschreibung
Zusammenfassung:	An apparatus for a lead-free piezoelectric ink-jet printhead is disclosed. Piezoelectric printheads, while more expensive are favored because they use a wider variety of inks. The piezoelectric printhead includes a diaphragm, a plurality of piezoelectric actuators comprising a lead-free piezoelectric material, at least one nozzle, at least one ink chamber, a top electrode, and a drive circuit. The deflection of the diaphragm on the body chamber contributes to a pressure pulse that is used to eject a drop of liquid from the nozzle. According to an exemplary embodiment, a lead-free piezoelectric printhead operated at smaller thicknesses and significantly higher electric fields is disclosed, along with methods of making such printheads.