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    FLUIDIC EJECTION DEVICES WITH ENCLOSED CROSS-CHANNELS
    1.
    发明申请
    FLUIDIC EJECTION DEVICES WITH ENCLOSED CROSS-CHANNELS 审中-公开

    公开(公告)号：WO2019027432A1

    公开(公告)日：2019-02-07

    申请号：PCT/US2017/044742

    申请日：2017-07-31

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

    Inventor： CHOY, Si-lam ,  CUMBIE, Michael W. ,  CHEN, Chien-Hua ,  POLLARD, Jeffrey R.

    IPC: B41J2/14 ,  B41J2/175 ,  B41J2/18 ,  B41J2/21

    Abstract: In one example in accordance with the present disclosure, a fluidic ejection device is described. The device includes a fluidic ejection die embedded in a moldable material. The die includes an array of nozzles. Each nozzle includes an ejection chamber and an opening. A fluid actuator is disposed within the ejection chamber. The fluidic ejection die also includes an array of passages, formed in a substrate, to deliver fluid to and from the ejection chamber. The fluidic ejection die also includes an array of enclosed cross-channels. Each enclosed cross-channel of the array of enclosed cross-channels is fluidly connected to a respective plurality of passages of the array of passages. The device also includes the moldable material which includes supply slots to deliver fluid to and from the fluidic ejection die. A carrier substrate of the device supports the fluidic ejection die and moldable material.

    SLOTTED FORMING METHODS AND FLUID EJECTING DEVICE
    2.
    发明申请
    SLOTTED FORMING METHODS AND FLUID EJECTING DEVICE 审中-公开
    液体成型方法和流体喷射装置

    公开(公告)号：WO2005092785A1

    公开(公告)日：2005-10-06

    申请号：PCT/US2005/004988

    申请日：2005-02-16

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. ,  POLLARD, Jeffrey R. ,  MILLER, Michael D.

    Inventor： POLLARD, Jeffrey R. ,  MILLER, Michael D.

    IPC: B81C1/00

    CPC classification number: B81C1/00087 ,  B41J2/1603 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1634 ,  B81B2201/052

    Abstract: The described embodiments relate to slotted substrates (300) and methods of forming same. One exemplary method forms a first slot portion (410a) into a first surface (302) of a substrate (300), the first slot portion (410a) defining a footprint (404) at the first surface (302). The method also forms a second slot portion (410a 1 ) through the first slot portion (410a); and, forms a third slot portion (410a 2 ) through a second surface (303) of the substrate (300) sufficiently to intercept the second slot portion (410a 1 ) to form a fluid-handling slot (305) through the substrate (300).

    Abstract translation: 所描述的实施例涉及开槽衬底（300）及其形成方法。 一种示例性方法形成到衬底（300）的第一表面（302）中的第一槽部分（410a），第一槽部分（410a）在第一表面（302）处限定了足迹（404）。 该方法还通过第一槽部（410a）形成第二槽部（410a1）。 并且通过所述基板（300）的第二表面（303）形成足以拦截所述第二槽部（410a1）以形成通过所述基板（300）的流体处理槽（305）的第三槽部（410a2）。

    RECIRCULATION BYPASS
    3.
    发明申请
    RECIRCULATION BYPASS 审中-公开

    公开(公告)号：WO2021183121A1

    公开(公告)日：2021-09-16

    申请号：PCT/US2020/022034

    申请日：2020-03-11

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

    Inventor： LUM, Jacob M. ,  CHOY, Si-lam J. ,  POLLARD, Jeffrey R. ,  YAMASHITA, Tsuyoshi ,  SELLS, Jeremy ,  CLARK, Garrett E.

    IPC: B41J2/18 ,  B41J2/14

    Abstract: A fluid ejection die may include a fluid actuator, a substrate supporting the fluid actuator, a chamber layer supported by the substrate and a bypass passage in the substrate. The substrate may include a closed inlet channel having an inlet opening for connection to an outlet of a fluid source and an outlet channel having an outlet opening of a first size for connection to an inlet of the fluid source. The chamber layer includes a recirculation passage to supply fluid for ejection by the fluid actuator through an ejection orifice and to circulate fluid across the fluid actuator from the closed inlet channel to the outlet channel. The bypass passage is of a second size less than the first size and connects the inlet channel to the inlet of the fluid source while bypassing any fluid actuator provided for ejecting fluid through an ejection orifice.

    LASER MICROMACHINING SYSTEMS
    4.
    发明申请
    LASER MICROMACHINING SYSTEMS 审中-公开
    激光微电子系统

    公开(公告)号：WO2004101214A2

    公开(公告)日：2004-11-25

    申请号：PCT/US2004/013520

    申请日：2004-04-29

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. ,  POLLARD, Jeffrey R.

    Inventor： POLLARD, Jeffrey R.

    IPC: B23K26/12

    CPC classification number: B23K26/123 ,  B23K26/12 ,  B23K26/125 ,  B23K26/127 ,  B23K26/142 ,  B23K26/1476

    Abstract: The described embodiments relate to laser micromachining a substrate (104). One exemplary embodiment includes a chamber (114) configured to receive an assist gas from an assist gas source. The chamber (114) is configured to allow a laser beam (108) to pass through the chamber (114) to contact a substrate (104) positioned outside of the chamber (114). The laser machine also includes a nozzle plate (202) positioned in gas receiving relation with the chamber (114), the nozzle plate (202) having at least one nozzle opening (204) formed therein, wherein the at least one nozzle opening (204) is substantially coincident a footprint of a feature (206) desired to be formed in the substrate (104).

    Abstract translation: 所描述的实施例涉及激光微加工衬底（104）。 一个示例性实施例包括被配置为从辅助气体源接收辅助气体的腔室（114）。 腔室（114）被配置为允许激光束（108）穿过腔室（114）以接触位于腔室（114）外部的衬底（104）。 激光机还包括与腔室（114）以气体接收关系定位的喷嘴板（202），喷嘴板（202）具有形成在其中的至少一个喷嘴开口（204），其中至少一个喷嘴开口（204 ）基本上重合期望形成在衬底（104）中的特征（206）的覆盖区。

    CROSS-DIE RECIRCULATION CHANNELS AND CHAMBER RECIRCULATION CHANNELS
    6.
    发明申请
    CROSS-DIE RECIRCULATION CHANNELS AND CHAMBER RECIRCULATION CHANNELS 审中-公开

    公开(公告)号：WO2019103752A1

    公开(公告)日：2019-05-31

    申请号：PCT/US2017/063275

    申请日：2017-11-27

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

    Inventor： CHEN, Chien-Hua ,  POLLARD, Jeffrey R. ,  CUMBIE, Michael W. ,  CHOY, Si-lam

    IPC: B41J2/14 ,  B41J2/18

    CPC classification number: B41J2/14145 ,  B41J2202/12

    Abstract: A die may, in an example, include at least one cross-die recirculation channel formed into the die to recirculate an amount of printing fluid therethrough, the cross-die recirculation channel including a first-sized inlet port and a first-sized outlet port formed on a first side of the die, at least one chamber recirculation channel formed into the die and fluidically coupled to the cross-die recirculation channel to recirculate an amount of printing fluid therethrough, the chamber recirculation channel including a second-sized inlet port and a second-sized outlet port, at least one pump formed within the chamber recirculation channel to recirculate the amount of printing fluid therethrough.

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