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    MICROFLUIDIC DEVICE WITH MANIFOLD
    112.
    发明申请
    MICROFLUIDIC DEVICE WITH MANIFOLD 审中-公开
    MICROFLUIDIC设备与歧管

    公开(公告)号：WO2018022014A1

    公开(公告)日：2018-02-01

    申请号：PCT/US2016/044051

    申请日：2016-07-26

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： CHEN, Chien-Hua ,  MOUREY, Devin Alexander ,  CUMBIE, Michael W. ,  CHOY, Si-lam

    IPC: B81B1/00

    Abstract: A device includes: a die including a microfluidic device; a polymer substrate formed around the die; and a separate fluid manifold attached to the polymer substrate over the die and on a same side of the substrate as the die, the manifold to deliver fluid to the die.

    Abstract translation: 一种装置包括：包括微流体装置的管芯; 在模具周围形成的聚合物基材; 以及独立的流体歧管，所述流体歧管附接到所述模具上的所述聚合物基底上并且与所述模具在所述基底的同一侧上，所述歧管将流体输送到所述模具。

    COMPLEX IMPEDANCE DETECTION
    113.
    发明申请
    COMPLEX IMPEDANCE DETECTION 审中-公开
    复阻抗检测

    公开(公告)号：WO2018021990A2

    公开(公告)日：2018-02-01

    申请号：PCT/US2016/043311

    申请日：2016-07-21

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： CHEN, Chien-Hua ,  CUMBIE, Michael W. ,  MOUREY, Devin Alexander

    CPC classification number: B41J2/14153 ,  B41J2/0451 ,  B41J2/0458 ,  B41J2/1603 ,  B41J2/1626 ,  B41J2/1631 ,  B41J2/1639 ,  B41J2/1645

    Abstract: A printhead may include a nozzle, a firing chamber fluidly coupled to the nozzle, a printing fluid slot fluidly coupled to the firing chamber, and a sensor to detect a plurality of complex impedance values of a printing fluid at the printhead over a plurality of frequencies and create a printing fluid signature of the printing fluid. A method of determining at least one characteristic of a printing fluid provided to a printhead ma include, with a number of sensors, applying an alternating current at a plurality of frequencies over time to the printing fluid to receive a plurality of complex impedance values and comparing the plurality of complex impedance signals to a number of stored signals.

    Abstract translation: 打印头可以包括喷嘴，流体连接到喷嘴的喷射室，流体连接到喷射室的打印流体槽以及用于检测打印流体的多个复阻抗值的传感器 在打印头上经过多个频率并产生打印流体的打印流体特征。 确定提供给打印头的打印流体的至少一个特征的方法包括利用多个传感器随着时间的推移将多个频率的交流电施加到打印流体以接收多个复阻抗值并比较 多个复阻抗信号与多个存储信号进行比较。

    LIQUID LEVEL SENSING
    115.
    发明申请
    LIQUID LEVEL SENSING 审中-公开
    液位检测

    公开(公告)号：WO2018017095A1

    公开(公告)日：2018-01-25

    申请号：PCT/US2016/043290

    申请日：2016-07-21

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： CHEN, Chien-Hua ,  CUMBIE, Michael W. ,  BROWNING, Robert N.K.

    IPC: G01F23/24

    CPC classification number: G01F23/247 ,  B41J2/17566 ,  G01F23/246

    Abstract: In one example in accordance with the present disclosure a liquid level sensor is described. The sensor includes a carrier and a liquid level sensing interface disposed on the carrier. The liquid level sensing interface includes a number of liquid level sensing devices disposed on an elongated strip. The number of liquid level sensing devices detect a liquid level in a liquid container. The liquid level sensing interface also includes a number of thermal isolation components formed on the elongated strip to thermally isolate adjacent liquid level sensing devices.

    Abstract translation: 在根据本公开的一个示例中，描述了液位传感器。 传感器包括载体和设置在载体上的液位感测接口。 液位感测接口包括设置在细长条上的多个液位感测装置。 液位感测装置的数量检测液体容器中的液位。 液位感测接口还包括形成在细长条上的多个隔热部件，以热隔离相邻的液位感测设备。

    FRAME LAYER RECEIVING A SUBSTRATE SUPPORTED SEL STAGE
    116.
    发明申请
    FRAME LAYER RECEIVING A SUBSTRATE SUPPORTED SEL STAGE 审中-公开
    帧层接收基板支持选择阶段

    公开(公告)号：WO2018013137A1

    公开(公告)日：2018-01-18

    申请号：PCT/US2016/042570

    申请日：2016-07-15

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： CHEN, Chien-Hua ,  CUMBIE, Michael W. ,  MOUREY, Devin A.

    IPC: H01L27/00

    Abstract: An apparatus may include a frame layer having a recess, a substrate secured to the frame layer at least partially across the recess and a surface enhanced luminescence (SEL) stage supported by the substrate within the recess.

    Abstract translation: 装置可以包括具有凹槽的框架层，至少部分地跨过凹槽固定到框架层的基板和由凹槽内的基板支撑的表面增强发光（SEL）台。 / p>

    DETECTING A LEVEL OF PRINTABLE FLUID IN A CONTAINER
    117.
    发明申请
    DETECTING A LEVEL OF PRINTABLE FLUID IN A CONTAINER 审中-公开
    检测容器中可打印流体的液位

    公开(公告)号：WO2018013078A1

    公开(公告)日：2018-01-18

    申请号：PCT/US2016/041729

    申请日：2016-07-11

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： ANDERSON, Daryl E. ,  GARDNER, James Michael ,  CUMBIE, Michael W. ,  LINN, Scott A. ,  FISHER, Berkeley

    IPC: B64J29/46 ,  B41L27/04 ,  B41L39/02 ,  G01F23/22

    CPC classification number: B41F31/022 ,  B41L27/04 ,  B41L39/02 ,  B41P2233/30 ,  G01F23/22 ,  G01F23/247 ,  G01F23/248 ,  G01F23/263

    Abstract: A method of detecting a level of printable fluid in a container includes, with at least one sensing location on a die in thermal contact with the printable fluid in the container, sensing a voltage of a capacitor over time as current from the capacitor leaks through a field effect transistor (FET). The FET and capacitor are associated with the sensing location. The method may further include, based on the voltage of the capacitor over time and a threshold voltage, determining whether the printable fluid is present at the at least one sensing location.

    Abstract translation: 检测容器中的可印刷流体的水平的方法包括，在管芯上的至少一个感测位置与容器中的可印刷流体热接触的情况下，随着时间检测电容器的电压 因为来自电容器的电流通过场效应晶体管（FET）泄漏。 FET和电容器与感测位置相关联。 该方法可以进一步包括基于电容器随时间的电压和阈值电压，确定可印刷流体是否存在于至少一个感测位置处。

    DETECTING FLUID LEVELS USING A COUNTER
    118.
    发明申请
    DETECTING FLUID LEVELS USING A COUNTER 审中-公开
    使用计数器检测流体液位

    公开(公告)号：WO2017189013A1

    公开(公告)日：2017-11-02

    申请号：PCT/US2016/030257

    申请日：2016-04-29

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： ANDERSON, Daryl E. ,  GARDNER, James Michael ,  FISHER, Berkeley ,  CUMBIE, Michael W.

    IPC: B41J2/17 ,  B41J2/175 ,  B41J2/01

    Abstract: An example printing cartridge includes a fluid container, a plurality of sensing locations in thermal contact with the fluid container, a voltage comparator to output time-based information based on a comparison of a sensed voltage generated at a selected sensing location of the plurality of sensing locations to a threshold voltage, the time-based information representative of whether a fluid is present at a fluid level associated with the selected sensing location, and a counter to convert the time-based information to a digital code based on a number of clock cycles.

    Abstract translation: 示例性打印盒包括流体容器，与流体容器热接触的多个感测位置，电压比较器，用于基于比较在第一传感器处产生的感测电压来输出基于时间的信息 将所述多个感测位置的选定感测位置与阈值电压相比较，所述基于时间的信息表示流体是否存在于与所选感测位置相关联的流体水平处，以及计数器，用于将基于时间的信息转换为数字 代码基于多个时钟周期。

    FLUID PROPERTY SENSING WITH ELECTRODES
    119.
    发明申请
    FLUID PROPERTY SENSING WITH ELECTRODES 审中-公开
    流体属性传感与电极

    公开(公告)号：WO2017184144A1

    公开(公告)日：2017-10-26

    申请号：PCT/US2016/028633

    申请日：2016-04-21

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： CUMBIE, Michael W. ,  CHEN, Chien-Hua ,  LONG, Greg Scott

    IPC: G01N27/22 ,  B41J2/195 ,  G01F23/24 ,  G01F23/26

    Abstract: In one example in accordance with the present disclosure a fluid property sensing device is described. The fluid property sensing device includes a substrate having a trench formed therein. The trench includes a bottom surface and opposite side surfaces. A first electrode is disposed on a first side surface of the trench and a second electrode is disposed on a second side surface of the trench. The first electrode and second electrode form a capacitor to measure a complex impedance of a fluid that fills a space between the first electrode and the second electrode. This complex impedance indicates a property of the fluid. A fluid level sensing die, having a number of fluid level sensing components disposed thereon, may be attached to the substrate, preferably in such a way that the fluid level sensing die is surrounded by the trench. In this way the surface area of the electrodes provided in the trench can be increased. The number of level sensing components may be thermal sensing components.

    Abstract translation: 在根据本公开的一个示例中，描述了流体属性感测设备。 流体特性感测装置包括其中形成有沟槽的衬底。 沟槽包括底面和相对的侧面。 第一电极设置在沟槽的第一侧表面上，第二电极设置在沟槽的第二侧表面上。 第一电极和第二电极形成电容器以测量填充第一电极和第二电极之间的空间的流体的复阻抗。 这个复杂的阻抗表明了流体的特性。 其上布置有多个液位感测部件的液位感测管芯可以优选地以使得液位感测管芯被沟槽包围的方式连接到衬底。 以这种方式可以增加设置在沟槽中的电极的表面积。 电平传感元件的数量可能是热敏元件。

    OVER-MOLDED FLUID LEVEL SENSOR AND METHOD OF FORMING THE SAME
    120.
    发明申请
    OVER-MOLDED FLUID LEVEL SENSOR AND METHOD OF FORMING THE SAME 审中-公开
    超模压液位传感器及其形成方法

    公开(公告)号：WO2017184143A1

    公开(公告)日：2017-10-26

    申请号：PCT/US2016/028624

    申请日：2016-04-21

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： CHEN, Chien-Hua ,  CUMBIE, Michael W. ,  STUDER, Anthony D.

    IPC: G01F23/24 ,  B41J2/175

    Abstract: A method of forming a fluid level sensor includes coupling an array of heating elements and sensors to a first side of a substrate. A second side of the substrate is coupled to a carrier. The method also includes coupling an electrical interface to the carrier and electrically coupling the array to the electrical interface via a conductive wire. The method further includes overmolding the electrical interface, the first side of the substrate, and the conductive wire to form an overmolded fluid level sensor. The carrier may be coupled to the second side of the substrate and the electrical interface via a releasable adhesive and may be removed after overmolding the fluid level sensor.

    Abstract translation: 形成液位传感器的方法包括将加热元件和传感器的阵列耦合到衬底的第一侧。 衬底的第二侧耦合到载体。 该方法还包括将电接口耦合到载体并且经由导线将阵列电耦合到电接口。 该方法进一步包括对电接口，衬底的第一侧和导线进行包覆模制以形成包覆成型液位传感器。 载体可以通过可释放的粘合剂耦合到基板的第二侧和电接口，并且可以在包覆模制液位传感器之后被移除。

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