Thermal ink jet printhead with ink resistant heat sink coating
    1.
    发明授权
    Thermal ink jet printhead with ink resistant heat sink coating 失效
    热敏喷墨打印头带有耐油墨散热器涂层

    公开(公告)号:US5751316A

    公开(公告)日:1998-05-12

    申请号:US674493

    申请日:1996-07-01

    IPC分类号: B41J2/05 B41J2/14 B41J2/16

    摘要: A heat sink for a thermal ink jet printhead has improved resistance to the corrosive effects of ink by forming a chromate film on a copper plated metal substrate. In one described embodiment, a thermal ink jet printer is formed by bonding together a channel plate and a heater plate. Resistors and electrical connections are formed in the surface of the heater plate. The heater plate is bonded to a heat sink comprising a zinc substrate having a copper film plated on one surface. The copper plated heat sink is immersed in a chromic acid and water bath. Metal anodes are placed within the bath and a field is applied for a period of time sufficient to form a polymeric chromate film on the copper plated surface. The chromate film has improved resistance to ink corrosion and exhibits a stronger printhead to heat sink bonding strength.

    摘要翻译: 用于热喷墨打印头的散热器通过在镀铜金属基板上形成铬酸盐膜而改善了对油墨的腐蚀作用的抵抗力。 在一个描述的实施例中,通过将通道板和加热器板接合在一起而形成热喷墨打印机。 电阻器和电气连接形成在加热器板的表面。 加热器板结合到散热器,该散热器包括在一个表面上镀有铜膜的锌基板。 镀铜的散热片浸在铬酸和水浴中。 将金属阳极放置在浴中,并且施加一段时间足以在镀铜表面上形成聚合铬酸盐膜。 铬酸盐膜具有改善的耐油墨腐蚀性能,并且具有更强的打印头对散热片的粘接强度。

    Corona generating device
    2.
    发明授权
    Corona generating device 失效
    电晕发生装置

    公开(公告)号:US4585320A

    公开(公告)日:1986-04-29

    申请号:US680861

    申请日:1984-12-12

    摘要: A corona generating device for depositing negative charge on an imaging surface carried on conductive substrate comprises at least one elongated conductive corona discharge electrode, means to connect the electrode to a corona generating potential source, at least one element adjacent the corona discharge electrode capable of adsorbing nitrogen oxide species generated once the corona generating electrode is energized and capable of desorbing nitrogen oxide species once that electrode is not energized, the element being plated with a substantially continuous thin layer of lead to neutralize the nitrogen oxide species when generated. In a preferred embodiment the corona discharge electrode comprises a thin wire coated at least in a discharge area with a dielectric material and the at least one element comprises a conductive shield and an insulating housing having two sides adjacent the shield to define the longitudinal opening to permit ions emitted from the electrode to be directed toward a surface to be charged, both the shield and the two sides of the housing being plated with a substantially continuous thin layer of lead.

    摘要翻译: 一种用于在承载在导电衬底上的成像表面上沉积负电荷的电晕产生装置包括至少一个细长的导电电晕放电电极,用于将电极连接到电晕发生电位源的装置,与能够吸附的电晕放电电极相邻的至少一个元件 一旦电晕产生电极被通电并且一旦该电极没有被通电就能够解吸氮氧化物种类的氮氧化物物质,该元件被镀有基本上连续的铅薄层以在产生时中和氮氧化物物质。 在优选实施例中,电晕放电电极包括至少在具有电介质材料的放电区域中涂覆的细线,并且所述至少一个元件包括导电屏蔽件和绝缘壳体,该绝缘外壳具有与屏蔽件相邻的两个侧面以限定纵向开口以允许 从电极发射的离子将被引向要充电的表面,屏蔽体和壳体的两侧都镀有基本上连续的薄层铅。

    Method of fabricating ink jet printheads
    6.
    发明授权
    Method of fabricating ink jet printheads 失效
    制造喷墨打印头的方法

    公开(公告)号:US5368683A

    公开(公告)日:1994-11-29

    申请号:US144362

    申请日:1993-11-02

    摘要: A plurality of ink jet printheads are produced from two aligned and bonded substrates by an improved fabrication method. The confronting surface of one of the substrates contains a plurality of linear arrays of heating elements and driver circuitry, and the confronting surface of the other substrate contains a plurality of sets of shallow channel recesses, reservoir recesses, and alignment openings. Prior to mating of the substrates, the substrate surface having the channel recesses is coated with a layer of thermosetting adhesive, and a thick film layer is deposited on the substrate surface having the heating elements and driver circuitry and patterned to provide a plurality of vias therein at predetermined locations. The vias expose the heating elements, provide ink bypass trenches, and provide a number of groupings of small pits. In one embodiment, the alignment openings are used to visually align and mate the substrates, so that each alignment opening is aligned with a respective one of the groups of small pits in the thick film layer. To prevent misalignment between the substrates before the adhesive layer is cured, a UV curable adhesive is inserted into the alignment openings and into each group of small pits in the thick film layer aligned therewith and cured, thus fastening the substrates together. The fastened substrates are placed in a curing oven without lost of alignment therebetween and the thermosetting adhesive is cured. The bonded substrates are then diced into a plurality of individual printheads.

    摘要翻译: 通过改进的制造方法由两个对准和粘合的基底制造多个喷墨打印头。 一个基板的相对表面包含多个加热元件和驱动电路的线性阵列,另一个基板的相对表面包含多组浅沟道凹槽,储存器凹槽和对准开口。 在配置基板之前,具有通道凹槽的基板表面涂覆有热固性粘合剂层,并且在具有加热元件和驱动器电路的基板表面上沉积厚膜层并且被图案化以在其中提供多个通孔 在预定位置。 通孔暴露加热元件,提供油墨旁路沟槽,并提供多个小坑组。 在一个实施例中,对准开口用于目视地对准和配合基板,使得每个对准开口与厚膜层中的小凹坑组中的相应一个对准。 为了防止粘合剂层固化之前的基板之间的未对准,将UV可固化粘合剂插入到对准开口中并且与对准的厚膜层中的每组小凹坑中进行固化,从而将基板紧固在一起。 将固定的基材放置在固化炉中,而不会在其间失去对准,并且固化热固性粘合剂。 然后将粘合的基材切成多个单独的打印头。

    Method of reducing chipping and contamination of reservoirs and channels
in thermal ink printheads during dicing by vacuum impregnation with
protective filler material
    7.
    发明授权
    Method of reducing chipping and contamination of reservoirs and channels in thermal ink printheads during dicing by vacuum impregnation with protective filler material 失效
    通过真空浸渍保护性填充材料在切割期间减少热墨水打印头中的储存器和通道的碎裂和污染的方法

    公开(公告)号:US5306370A

    公开(公告)日:1994-04-26

    申请号:US970499

    申请日:1992-11-02

    IPC分类号: B32B31/00

    摘要: A method of fabricating thermal ink jet printheads comprises aligning and bonding a pair of silicon wafers together, which have, on opposing confronting surface thereof, a plurality of sets of linear arrays of heating elements and associated driver circuitry on one wafer surface and a plurality of sets of parallel grooves and a communicating reservoir for each set of grooves. The grooves and reservoirs are filled with a filler material which is solid or gels at room temperature and liquid at higher temperatures. The bonded pair of wafers are severed into a plurality of individual printhead sby dicing processes conducted at room temperature. One of the dicing processes cuts the grooves in a direction perpendicular thereto in order to form concurrently the nozzle face and nozzles. The solid filler material supports fragile edges of the wafers and prevents entry of dicing debris and other contaminants. The printheads are subjected to heat, spinning, and high pressure water spray to remove the filler material.

    摘要翻译: 一种制造热喷墨打印头的方法包括将一对硅晶片对准并将其粘合在一起,所述硅晶片在相对的相对表面上具有在一个晶片表面上的多组加热元件和相关联的驱动电路的线性阵列组, 一组平行槽和一组连通槽,用于每组槽。 槽和储存器填充有在室温下为固体或凝胶的填料,在较高温度下填充液体。 通过在室温下进行的切割工艺将粘合的一对晶片切割成多个单独的打印头。 其中一个切割工艺在与其垂直的方向上切割凹槽,以便同时形成喷嘴面和喷嘴。 固体填充材料支撑晶片的脆弱边缘并防止切割碎屑和其它污染物的进入。 打印头经受热,旋转和高压喷水以去除填料。