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    • 6. 发明授权
    • Piezoelectric actuator for an ink-jet printhead and method of forming the same
    • 用于喷墨打印头的压电致动器及其形成方法
    • US07681989B2
    • 2010-03-23
    • US11064826
    • 2005-02-25
    • Hwa-sun LeeJae-woo ChungSeung-mo LimSung-gyu Kang
    • Hwa-sun LeeJae-woo ChungSeung-mo LimSung-gyu Kang
    • B41J2/16H01L41/24B41J2/45
    • B41J2/14233B41J2/161B41J2/1628B41J2/1631B41J2/1642B41J2002/14491Y10T29/42
    • In a piezoelectric actuator for an ink-jet printhead, and a method of forming the same, formed on a flow path plate having a pressurizing chamber, the piezoelectric actuator for applying a driving force for ink ejection to the pressurizing chamber, the piezoelectric actuator includes a lower electrode formed on the flow path plate, a bonding pad formed on the flow path plate to be insulated from the lower electrode, wherein a driving circuit for voltage application is bonded to an upper surface of the bonding pad, a piezoelectric layer formed on the lower electrode at a position corresponding to the pressurizing chamber, wherein an end of the piezoelectric layer extends onto the bonding pad, and an upper electrode formed on the piezoelectric layer, wherein an end of the upper electrode extends beyond the end of the piezoelectric layer and contacts the upper surface of the bonding pad.
    • 在具有加压室的流路板上形成的用于喷墨打印头的压电致动器及其形成方法中,压电致动器用于向加压室施加用于喷墨的驱动力,压电致动器包括 形成在所述流路板上的下电极,形成在所述流路板上以与所述下电极绝缘的接合焊盘,其中施加电压的驱动电路接合到所述接合焊盘的上表面,形成在所述接合焊盘的上表面上的压电层 所述下部电极在与所述加压室对应的位置处,其中所述压电层的端部延伸到所述接合焊盘上,以及形成在所述压电层上的上部电极,其中所述上部电极的端部延伸超出所述压电层的端部 并接触焊盘的上表面。
    • 8. 发明申请
    • PIEZOELECTRIC INKJET PRINTHEAD
    • 压电式喷嘴
    • US20100171797A1
    • 2010-07-08
    • US12722664
    • 2010-03-12
    • Seung-mo LIMTae-Kyung LeeChang-Youl MoonJae-woo ChungHwa-sun Lee
    • Seung-mo LIMTae-Kyung LeeChang-Youl MoonJae-woo ChungHwa-sun Lee
    • B41J2/045
    • B41J2/14233B41J2/055
    • A piezoelectric inkjet printhead includes a manifold, a chamber array including a plurality of chambers in connection with the manifold and arranged along at least one side of the manifold, a vibrating plate to cover the plurality of chambers, and a plurality of piezoelectric actuators formed on the vibrating plate to change pressures of corresponding ones of the plurality of chambers by vibrating the vibrating plate. The plurality of chambers includes a plurality of pressure chambers disposed in a center portion of the chamber array and having corresponding ink ejecting nozzles, and at least two dummy chambers, one disposed on each side of the chamber array and having corresponding dummy nozzles that do not eject ink. A plurality of trenches may be formed in the vibrating plate between each of the piezoelectric actuators.
    • 压电喷墨打印头包括歧管,腔室阵列,其包括与歧管连接的多个腔室,并且沿着歧管的至少一侧布置,覆盖多个腔室的振动板,以及形成在 所述振动板通过振动所述振动板来改变所述多个室中相应的室的压力。 多个室包括设置在室阵列的中心部分并具有对应的喷墨喷嘴的多个压力室,以及至少两个虚设室,一个设置在室阵列的每一侧上,并且具有不对应的虚拟喷嘴 弹出墨水。 可以在每个压电致动器之间的振动板中形成多个沟槽。