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    Lead-free piezo printhead using thinned bulk material
    2.
    发明授权
    Lead-free piezo printhead using thinned bulk material 有权

    公开(公告)号：US10252525B2

    公开(公告)日：2019-04-09

    申请号：US15611179

    申请日：2017-06-01

    Applicant: Xerox Corporation ,  Brown University

    Inventor： Peter J. Nystrom ,  Gary D. Redding ,  Angus Ian Kingon ,  Seunghyun Kim ,  Nicholas Mostovych

    IPC: B41J2/14 ,  B41J2/16 ,  C04B35/475 ,  C04B35/453

    Abstract: 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.

    INTEGRATED THIN FILM PIEZOELECTRIC PRINTHEAD
    5.
    发明申请
    INTEGRATED THIN FILM PIEZOELECTRIC PRINTHEAD 有权
    集成薄膜压电印刷

    公开(公告)号：US20170072691A1

    公开(公告)日：2017-03-16

    申请号：US14851422

    申请日：2015-09-11

    Applicant: XEROX CORPORATION

    Inventor： Andrew W. Hays ,  Peter J. Nystrom ,  Angus I. Kingon ,  Seunghyun Kim

    IPC: B41J2/14 ,  B41J2/16

    CPC classification number: B41J2/14233 ,  B41J2/161 ,  B41J2/1623 ,  B41J2/1626 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2/1634 ,  B41J2/1645 ,  H01L41/187 ,  H01L41/314 ,  H01L41/318

    Abstract: A method and structure for a piezoelectric ink jet printhead. The method can include forming a piezoelectric composite from a liquid sol-gel solution. A first layer of the liquid sol-gel solution can be deposited onto a substrate using, for example, a spin coat process, wherein the substrate may be a printhead diaphragm. The first layer may be partially cured, then a second layer of the liquid sol-gel solution can be deposited onto the partially cured first layer, which is then partially cured. Any number of layers of liquid sol-gel solution can be deposited to result in a piezoelectric composite having a suitable thickness. Subsequently, all of the partially cured layers are fully cured. Printhead processing can continue to form a completed piezoelectric ink jet printhead.

    Abstract translation: 压电喷墨打印头的方法和结构。 该方法可以包括从液体溶胶 - 凝胶溶液形成压电复合材料。 可以使用例如旋涂工艺将液体溶胶 - 凝胶溶液的第一层沉积到基底上，其中基底可以是打印头隔膜。 第一层可以部分固化，然后可以将第二层液体溶胶 - 凝胶溶液沉积到部分固化的第一层上，然后将其部分固化。 可以沉积任何数量的液体溶胶 - 凝胶溶液，以产生具有合适厚度的压电复合材料。 随后，所有部分固化的层完全固化。 打印头处理可以继续形成完成的压电喷墨打印头。

    Lead-free piezo printhead using thinned bulk material
    6.
    发明授权
    Lead-free piezo printhead using thinned bulk material 有权

    公开(公告)号：US10421277B2

    公开(公告)日：2019-09-24

    申请号：US16375951

    申请日：2019-04-05

    Applicant: Xerox Corporation ,  Brown University

    Inventor： Peter J. Nystrom ,  Gary D. Redding ,  Angus Ian Kingon ,  Seunghyun Kim ,  Nicholas Mostovych

    IPC: B41J2/16 ,  B41J2/14 ,  C04B35/453 ,  C04B35/475

    Abstract: 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.

    Integrated piezo printhead
    7.
    发明授权
    Integrated piezo printhead 有权

    公开(公告)号：US09738070B1

    公开(公告)日：2017-08-22

    申请号：US15141229

    申请日：2016-04-28

    Applicant: Xerox Corporation

    Inventor： Peter J. Nystrom ,  Angus Ian Kingon ,  Andrew W. Hays ,  Seunghyun Kim

    IPC: B41J2/045 ,  B41J2/14

    CPC classification number: B41J2/14233 ,  B41J2/161 ,  B41J2/1623 ,  B41J2/1626 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1632 ,  B41J2/1634 ,  B41J2/1645 ,  H01L41/187 ,  H01L41/314 ,  H01L41/318

    Abstract: An apparatus for a 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 plurality of ink ejectors with a nozzle, an ink chamber, at least one body chamber, at least one diaphragm material, and a top electrode. The diaphragm material consists of a foil with built up piezoelectric material. 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 disclosed, a thin-film piezoelectric printhead uses existing low-cost adhesive based jet stack fabrication processed with polymers and metal foil layers and avoids the cost and complexity of a Micro-electrical-mechanical (MEMS) based fabrication system. According to another exemplary embodiment of this disclosure, provided is a thick hybrid film piezoelectric printhead.

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