Interconnected printhead die and carrier substrate system

    公开(公告)号:US06554399B2

    公开(公告)日:2003-04-29

    申请号:US09795264

    申请日:2001-02-27

    IPC分类号: B41J214

    摘要: An interconnected printhead die and carrier substrate system for a printhead in hard-copy-producing devices used to print on print media includes a printhead die and a carrier substrate. The die and the substrate are coupled and each has an operative face separated from an inner face, and includes integrated circuits formed therein. At least three spacers are positioned between the die and substrate to define a space that is filled with an adhesive/under-fill layer. An electrical-connection region is located adjacent the inner faces of the die and substrate, and is effective to accommodate bilateral communication between integrated circuits formed on the die and the substrate. The die and the substrate may also have a stepped shape, and a cavity is formed by the stepped die and stepped substrate, with the electrical-connection region being located in the cavity. The electrical-connection region is also encapsulated with an encapsulant that may fill the cavity.

    Flextensional transducer and method for fabrication of a flextensional transducer
    62.
    发明授权
    Flextensional transducer and method for fabrication of a flextensional transducer 失效
    弯曲传感器和弯曲传感器的制造方法

    公开(公告)号:US06474785B1

    公开(公告)日:2002-11-05

    申请号:US09655495

    申请日:2000-09-05

    IPC分类号: B41J204

    摘要: An apparatus and method of fabricating a flextensional transducer capable of ejecting a flowable material is disclosed. The method of fabricating a flextensional transducer capable of ejecting a flowable material includes ultrasonically metal welding an actuator body having an outer diameter and an aperture to a transducer membrane having an outer diameter and an aperture. The transducer membrane is also ultrasonically metal welded to a gland or nozzle capable of housing a portion of the flowable material. The gland or nozzle includes a surface adjacent to the transducer membrane having an aperture. The outer diameter of the actuator body is smaller than the aperture of the gland or nozzle.

    摘要翻译: 公开了一种制造能够喷射可流动材料的弯曲换能器的装置和方法。 制造能够喷射可流动材料的弯曲换能器的方法包括超声波金属焊接具有外径和孔的致动器主体到具有外径和孔径的换能器膜。 传感器膜也被超声波金属焊接到能够容纳可流动材料的一部分的压盖或喷嘴。 压盖或喷嘴包括与具有孔的换能器膜相邻的表面。 致动器主体的外径小于压盖或喷嘴的孔径。

    Fluid jet printhead with integrated heat-sink
    63.
    发明授权
    Fluid jet printhead with integrated heat-sink 失效
    具有集成散热器的流体喷射打印头

    公开(公告)号:US6126276A

    公开(公告)日:2000-10-03

    申请号:US33504

    申请日:1998-03-02

    IPC分类号: B41J2/14 B41J2/16 B47J2/05

    摘要: A printhead used to eject fluid onto a recording medium has an integrated heat-sink which is used to cool the energy dissipation elements used to propel the fluid from the printhead. The printhead is comprised of a semiconductor substrate that has been processed with thin-film layers. On top of the thin-film layers is an orifice layer that has a pattern of orifices. Fluid feed channels, on the side of the printhead opposite the orifice, supply fluid to the pattern of orifices. Within the thin-film layers are energy dissipating elements which are used to transfer energy to the fluid thereby ejecting fluid from the orifice. The fluid is transferred to the orifice opening through fluid feed slots formed in the thin-film layer adjacent to the energy dissipation elements which is exposed in the fluid feed channel. An integrated heat-sink is attached to the energy dissipation elements to remove heat to the semiconductor substrate and the fluid supply in the fluid feed channel.

    摘要翻译: 用于将流体喷射到记录介质上的打印头具有集成的散热器,其用于冷却用于从打印头推动流体的能量耗散元件。 打印头由已经用薄膜层处理过的半导体衬底组成。 在薄膜层的顶部是具有孔的图案的孔层。 在与打孔口相对的打印头侧面的流体供给通道将流体供应到孔口图案。 在薄膜层内是能量消散元件,其用于将能量转移到流体,从而从孔喷射流体。 流体通过形成在薄膜层中的流体供给槽转移到孔口开口,邻近于在流体供给通道中暴露的能量耗散元件。 集成的散热器连接到能量耗散元件以去除半导体衬底的热量和流体馈送通道中的流体供应。

    System and method for using electrowetting on dielectric (EWOD) for controlling fluid in a microfluidic circuit
    65.
    发明申请
    System and method for using electrowetting on dielectric (EWOD) for controlling fluid in a microfluidic circuit 审中-公开
    在电介质(EWOD)上使用电润湿来控制微流体电路中的流体的系统和方法

    公开(公告)号:US20080264506A1

    公开(公告)日:2008-10-30

    申请号:US11796891

    申请日:2007-04-30

    IPC分类号: F15C1/04 G01N27/26

    摘要: A system for controlling fluid flow in a microfluidic circuit includes at least one microfluidic channel having a first fluid, a switch element coupled to the microfluidic channel, the switch element comprising at least one inlet, at least one outlet and a second fluid, the second fluid being immiscible with respect to the first fluid. The system also includes an actuator configured to alter the position of the second fluid, such that when in a first position, the second fluid allows the first fluid to flow from the at least one inlet to the at least one outlet, and such that when in a second position, the second fluid prevents the first fluid from flowing from the at least one inlet to the at least one outlet.

    摘要翻译: 用于控制微流体回路中的流体流动的系统包括至少一个具有第一流体的微流体通道,耦合到微流体通道的开关元件,该开关元件包括至少一个入口,至少一个出口和第二流体,第二流体 流体相对于第一流体是不混溶的。 该系统还包括被配置为改变第二流体的位置的致动器,使得当处于第一位置时,第二流体允许第一流体从至少一个入口流动到至少一个出口,并且使得当 在第二位置,第二流体防止第一流体从至少一个入口流到至少一个出口。

    Microfluidic Valve
    66.
    发明申请
    Microfluidic Valve 审中-公开
    微流控阀

    公开(公告)号:US20080236668A1

    公开(公告)日:2008-10-02

    申请号:US11691318

    申请日:2007-03-26

    IPC分类号: F17D3/00 F17D1/00

    摘要: A microfluidic valve. A microfluidic channel is formed in a substrate. A cooling element cools a substance in the channel to inhibit flow of the substance through the channel. A heating element warms the substance to overcome the effect of the cooling and enable the substance to flow through the channel. The valve may serve as a component of a microfluidic device that in turn may be part of a microfluidic system.

    摘要翻译: 微流控阀。 在衬底中形成微流体通道。 冷却元件冷却通道中的物质以抑制物质通过通道的流动。 加热元件加热物质以克服冷却的影响并使物质流过通道。 该阀可以用作微流体装置的组件,微流体装置又可以是微流体系统的一部分。

    Microfluidic device with valve and method
    67.
    发明申请

    公开(公告)号:US20080031782A1

    公开(公告)日:2008-02-07

    申请号:US11500234

    申请日:2006-08-07

    IPC分类号: B01L11/00 B01L3/00

    摘要: The invention provides a microfluidic system, including an optional separation system for separating and preparing an analyte solution, a microfluidic device downstream from the separation system for dispensing and analyte solution, comprising a substrate having a channel defining a portion of a microfluidic channel; a polymeric substrate having a channel for contacting the substrate to define the second portion of the microfluidic channel; a cooling element associated with the substrate and channel for cooling an analyte solution in the microfluidic channel; and a heating element adjacent to the microfluidic channel for heating the analyte solution, wherein the cooling element operates to maintain the channel in a closed state by cooling the analyte solution in the channel and wherein the heating element may be activated to place the channel in an open state by heating the analyte solution in the channel; and a detector for detecting the dispensed analyte solutionThe invention also provides a microfluidic device and/or valve, including a substrate having a micro fluidic channel for carrying an analyte solution; a cooling element associated with the substrate and micro fluidic channel for cooling the analyte solution in the channel; and a heating element adjacent to the channel for heating the analyte solution in the channel wherein the cooling element operates to maintain the channel in a closed state by cooling the analyte solution in the channel and wherein the heating element may be activated to place the channel in an open state by heating the cooled analyte solution in the channel.The invention also provides a method of valve control in a microfluidic device, including maintaining a cooling element in an active state to freeze an analyte solution in a microfluidic channel and close the microfluidic channel; and engaging a heating element to thaw the analyte solution in the microfluidic channel and open the microfluidic channel to allow fluid flow through the channel.

    Tailoring of switch bubble formation for LIMMS devices
    68.
    发明申请
    Tailoring of switch bubble formation for LIMMS devices 审中-公开
    为LIMMS设备调节开关气泡形成

    公开(公告)号:US20070289853A1

    公开(公告)日:2007-12-20

    申请号:US11453166

    申请日:2006-06-14

    IPC分类号: H01H29/00

    CPC分类号: H01H1/0036 H01H2029/008

    摘要: Embodiments of the invention provide for improved separation of switching material by creating a diversion of the activating force. In one embodiment at least one structural element is positioned in close proximity to an inlet for the actuating force to influence the actuating force to fully separate the switching material. Structural elements may include protrusions, either adjacent to the inlet or approximately across the channel from the inlet, as well as at least one additional inlet. The diversion can be created, if desired, by forces coming from opposite sides. Embodiments of the invention make use of non-wettable surfaces lining the channel in regions where switching material is to break into separate volumes, and wettable surfaces away from such regions. Embodiments of the invention provide for multi-pole, multi-throw switching.

    摘要翻译: 本发明的实施例通过产生激活力的转移来提供切换材料的分离。 在一个实施例中,至少一个结构元件被定位成靠近用于致动力的入口以影响致动力以完全分离开关材料。 结构元件可以包括与入口相邻或者大致跨过入口的通道的突起,以及至少一个附加的入口。 如果需要,可以通过来自相对侧的力创建转移。 本发明的实施例利用在切换材料要分解成分开体积的区域中衬里通道的不可润湿表面以及远离这些区域的可润湿表面。 本发明的实施例提供了多极,多掷切换。

    System and method of loading liquid metal switches
    69.
    发明申请
    System and method of loading liquid metal switches 失效
    装载液态金属开关的系统和方法

    公开(公告)号:US20070193864A1

    公开(公告)日:2007-08-23

    申请号:US11358627

    申请日:2006-02-21

    申请人: Timothy Beerling

    发明人: Timothy Beerling

    IPC分类号: H01H29/00

    CPC分类号: H01H11/02

    摘要: The delivery of liquid to a device, for example, a microswitch, can be achieved without the application of external pressure to the liquid by using capillary action to cause the liquid to move as desired. In one embodiment, at least one channel having a wettable surface is created that allows liquid metal to flow into a measuring reservoir without the liquid metal being pressurized and without applying other external forces on the liquid metal to facilitate its movement. A portion of the channel between the wettable channel and the reservoir is non-wettable and this non-wettable area, while allowing the metal to flow into the reservoir, acts to prevent the liquid from back-flowing from the reservoir to the channel. In one embodiment pressurized gas can be generated and applied to the liquid in the reservoir to facilitate the movement of the liquid from the reservoir to the switch cavity.

    摘要翻译: 可以通过使用毛细作用使液体根据需要移动而不向液体施加外部压力,从而实现将液体输送到装置,例如微动开关。 在一个实施例中,产生具有可润湿表面的至少一个通道,其允许液体金属流入测量容器,而不会使液体金属被加压,并且不在液体金属上施加其它外力以促进其运动。 可润湿通道和储存器之间的通道的一部分是不可润湿的,并且这种不可润湿区域同时允许金属流入储存器中起作用以防止液体从储存器回流到通道。 在一个实施例中,可以产生加压气体并将其施加到储存器中的液体,以便于液体从储存器移动到开关腔。