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    Method of forming micromachined fluid ejectors using piezoelectric actuation
    1.
    发明授权
    Method of forming micromachined fluid ejectors using piezoelectric actuation 有权
    使用压电驱动形成微机械流体喷射器的方法

    公开(公告)号：US08359748B2

    公开(公告)日：2013-01-29

    申请号：US12273573

    申请日：2008-11-19

    申请人： Baomin Xu ,  Steven A. Buhler ,  Stephen D. White ,  Scott Jong Ho Limb

    发明人： Baomin Xu ,  Steven A. Buhler ,  Stephen D. White ,  Scott Jong Ho Limb

    IPC分类号： B21D53/76 ,  H04R17/00

    CPC分类号： B41J2/14233 ,  B41J2/161 ,  B41J2/1623 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1634 ,  B41J2/1639 ,  B41J2/1642 ,  B41J2/1643 ,  B41J2/1646 ,  B41J2002/14475 ,  Y10T29/42 ,  Y10T29/49401

    摘要： A method of forming a fluid ejector includes forming a recess well into a silicon wafer on a first side of the silicon wafer, and filling the recess well with a sacrificial material. A thin layer structure is deposited onto the first side of a silicon wafer covering the filled recess well. Then a thin film piezoelectric is bonded or deposited to the thin layer structure, and a hole is formed in the thin layer structure exposing at least a portion of the sacrificial material. The sacrificial material is removed from the recess well, wherein the hole in the thin layer in the recess well with the sacrificial material removed, form a fluid inlet. An opening area in the silicon wafer is formed on a second side of the silicon wafer. Then a nozzle plate is formed having a recess portion and an aperture within the recess portion. The nozzle plate is attached to the second side of the silicon wafer, with the recess portion positioned within the open area. The thin layer structure and the recess portion of the nozzle plate define a depth of a fluid cavity defined by the thin layer structure, the recess portion of the nozzle plate and the sidewalls of the silicon wafer.

    摘要翻译： 形成流体喷射器的方法包括在硅晶片的第一侧上将凹槽形成凹槽，并用牺牲材料填充凹槽。 在覆盖填充的凹槽的硅晶片的第一侧上沉积薄层结构。 然后，薄膜压电体被结合或沉积到薄层结构上，并且在该薄层结构中形成一个露出至少一部分牺牲材料的孔。 牺牲材料从凹槽中移除，其中凹槽中的薄层中的孔与除去牺牲材料的孔形成流体入口。 硅晶片的开口区域形成在硅晶片的第二侧上。 然后形成在凹部内具有凹部和孔的喷嘴板。 喷嘴板附接到硅晶片的第二侧，凹部位于开放区域内。 喷嘴板的薄层结构和凹部限定由薄层结构，喷嘴板的凹部和硅晶片的侧壁限定的流体腔的深度。

    STACKED SLICE PRINTHEAD
    3.
    发明申请
    STACKED SLICE PRINTHEAD 有权
    堆叠拼贴

    公开(公告)号：US20110141206A1

    公开(公告)日：2011-06-16

    申请号：US12639347

    申请日：2009-12-16

    申请人： Patrick C. P. Cheung ,  Karl A. Littau ,  Michael Y. Young ,  Steven A. Buhler

    发明人： Patrick C. P. Cheung ,  Karl A. Littau ,  Michael Y. Young ,  Steven A. Buhler

    IPC分类号： B41J2/045

    CPC分类号： B41J2/14233 ,  B41J2/161 ,  B41J2/1623 ,  B41J2/1629

    摘要： A side-firing printhead comprises a stack that includes a plurality of slices, wherein each slice includes a PCB trigger layer and a diaphragm layer, the PCB trigger layer controls the flow of ink from the diaphragm layer, a first side of the diaphragm layer includes at least one cavity that delivers ink via one or more aperture braces. An aperture plate is coupled to one side of the stack to interface to the diaphragm layers contained therein, wherein the aperture plate contains a plurality of apertures that are located at each aperture brace. A first bracket is disposed on the top of the stack and a second bracket is disposed on the bottom of the stack, wherein at least one fastener couples the second bracket to the first bracket such that a predetermined amount of pressure is applied to the stack.

    摘要翻译： 侧面喷射打印头包括包括多个切片的堆叠，其中每个切片包括PCB触发层和隔膜层，所述PCB触发层控制来自所述隔膜层的墨的流动，所述隔膜层的第一侧包括 至少一个通过一个或多个孔径支架输送墨水的空腔。 孔板联接到堆叠的一侧以与包含在其中的隔膜层相接合，其中孔板包含位于每个孔支架处的多个孔。 第一支架设置在堆叠的顶部，并且第二支架设置在堆叠的底部，其中至少一个紧固件将第二支架联接到第一支架，使得预定量的压力施加到堆叠。

    Integrated device having MOS transistors which enable positive and negative voltage swings
    7.
    发明授权
    Integrated device having MOS transistors which enable positive and negative voltage swings 失效
    具有MOS晶体管的集成器件，其实现正负电压摆幅

    公开(公告)号：US5321293A

    公开(公告)日：1994-06-14

    申请号：US88945

    申请日：1993-07-12

    申请人： Mohamad M. Mojaradi ,  Tuan Vo ,  Jaime Lerma ,  Steven A. Buhler

    发明人： Mohamad M. Mojaradi ,  Tuan Vo ,  Jaime Lerma ,  Steven A. Buhler

    IPC分类号： H01L29/78 ,  H01L27/02 ,  H01L27/092 ,  H03K17/30 ,  H03K3/01

    CPC分类号： H01L27/0925 ,  H01L27/0251 ,  H03K17/302

    摘要： A semiconductor circuit integrated with CMOS circuits for receiving a TTL input voltage and generating a large negative and positive voltage swing with respect to p-type or n-type substrate is disclosed. This invention is based on elimination of the electro-static discharge (ESD) protection circuit which is a requirement for any integrated circuit. Eliminating the ESD protection circuit also eliminates the clamping feature of the ESD protection circuit and therefore the circuit can be driven to negative voltages for PMOS circuits and to positive voltages for NMOS circuits. This provides the possibility of connecting the drain of a a P-channel type metal oxide silicon field effect (PMOS) transistor, which is fabricated on a p-type substrate within an n-well, to a voltage below the the substrate voltage. Also, in a n-channel type metal oxide silicon field effect (NMOS) transistor which is fabricated on a n-type substrate within a P-well, the drain can be connected to voltages higher than the substrate voltage. Utilizing this feature of a MOS transistor provides a way to design an integrated circuit which can handle negative voltage swings as well as positive voltage swings.

    摘要翻译： 公开了一种与用于接收TTL输入电压并且相对于p型或n型衬底产生大的负和正电压摆幅的CMOS电路集成的半导体电路。 本发明基于消除作为任何集成电路的要求的静电放电（ESD）保护电路。 消除ESD保护电路也消除了ESD保护电路的钳位特性，因此电路可以被驱动到PMOS电路的负电压和NMOS电路的正电压。 这提供了将制造在n阱内的p型衬底上的P沟道型金属氧化物硅场效应（PMOS）晶体管的漏极连接到低于衬底电压的电压的可能性。 此外，在P阱内的n型衬底上制造的n沟道型金属氧化物硅场效应（NMOS）晶体管中，漏极可以连接到高于衬底电压的电压。 利用MOS晶体管的这一特征提供了一种设计可以处理负电压摆幅以及正电压摆幅的集成电路的方法。

    Thermal ink jet transducer protection
    8.
    发明授权
    Thermal ink jet transducer protection 失效
    热敏喷墨传感器保护

    公开(公告)号：US5257042A

    公开(公告)日：1993-10-26

    申请号：US727493

    申请日：1991-07-09

    申请人： Steven A. Buhler

    发明人： Steven A. Buhler

    IPC分类号： B41J2/05 ,  B41J2/14 ,  B41J2/16 ,  B41J2/175

    CPC分类号： B41J2/04541 ,  B41J2/0458 ,  B41J2/14129 ,  B41J2/1604 ,  B41J2/1626 ,  B41J2/1631 ,  B41J2/17566 ,  B41J2202/13

    摘要： The present invention provides an ink jet printhead that is provided a bias voltage and that includes at least one ink channel, a heating element, and an interconnect. The ink channel has an open end that serves as a nozzle, and the heating element is positioned in the channel for ejecting ink droplets from the nozzle by selective application of current pulses along the interconnect to the heating element. The printhead further includes a conductive protective region that is positioned adjacent the heating element and that has a portion thereof exposed to the ink channel for protecting the heating element from ink. Positioned between the conductive protective region and the heating element is a dielectric region for insulating the heating element from the conductive protective region. The printhead also includes a bus for connecting the bias voltage to the conductive protective region.

    摘要翻译： 本发明提供了一种喷墨打印头，其提供偏压并且包括至少一个油墨通道，加热元件和互连件。 墨水通道具有用作喷嘴的开口端，并且加热元件位于通道中，用于通过选择性地沿着互连件向加热元件施加电流脉冲从喷嘴喷射墨滴。 所述打印头还包括导电保护区域，所述导电保护区域邻近所述加热元件定位并且具有暴露于所述墨水通道的部分以保护所述加热元件免受墨水的导电保护区域。 位于导电保护区域和加热元件之间的是用于使加热元件与导电保护区域绝缘的电介质区域。 打印头还包括用于将偏置电压连接到导电保护区域的总线。

    Background light compensation for sensor array
    9.
    发明授权
    Background light compensation for sensor array 失效
    传感器阵列的背景光补偿

    公开(公告)号：US5204518A

    公开(公告)日：1993-04-20

    申请号：US812985

    申请日：1991-12-24

    申请人： Shi-Tron Lin ,  Steven A. Buhler

    发明人： Shi-Tron Lin ,  Steven A. Buhler

    IPC分类号： G01D5/26 ,  H03M1/28

    CPC分类号： G01D5/26 ,  H03M1/285

    摘要： A position detector for a scanning beam comprising a plurality of rows of spaced apart sensors. Each row of sensors includes a plurality of logic zero sensors and a plurality of logic one sensors which are arranged in alternating logic order. Each row is arranged such that it is symmetrical about its center. Equal areas of logic zero sensors on each side of the center are equal distances away from the center and equal areas of logic one sensors on each side of the center are equal distances away from the center to substantially cancel out any background light effects on the sensors.

    摘要翻译： 一种用于扫描光束的位置检测器，包括多行间隔开的​​传感器。 每行传感器包括多个逻辑零传感器和以交替逻辑顺序布置的多个逻辑一个传感器。 每排布置成使其相对于其中心对称。 中心每侧的逻辑零传感器的相等区域距离中心距离相等，距离相同的逻辑区域，中心两侧的一个传感器距离中心距离相等，从而基本上消除了对传感器的任何背景光影响 。

    Thermal ink jet drivers device design/layout
    10.
    发明授权
    Thermal ink jet drivers device design/layout 失效
    热敏喷墨驱动装置设计/布局

    公开(公告)号：US5144341A

    公开(公告)日：1992-09-01

    申请号：US692087

    申请日：1991-04-26

    申请人： Abdul M. El Haten ,  Steven A. Buhler ,  Putul D. Patel

    发明人： Abdul M. El Haten ,  Steven A. Buhler ,  Putul D. Patel

    IPC分类号： B41J2/05 ,  B41J2/14

    CPC分类号： B41J2/04541 ,  B41J2/04568 ,  B41J2/0458 ,  B41J2/14072

    摘要： A thermal ink jet printer utilizes a printhead whose electrical connections to the heating elements used to expel the ink droplets has been modified to reduce the effects of parasitic resistance of a first power bus when a number of resistors are simultaneously addressed. The first power bus has been modified by forming and interconnecting to it a second power bus using a low resistance connection which is formed to crossover, or under, a common return. The second power bus is connected at each end to a predetermined voltage, while the first power bus is connected at each end through a series ballast resistor to the same predetermined voltage.

    摘要翻译： 热喷墨打印机利用打印头，其打印墨滴的电气连接已被修改，以减少在同时寻址多个电阻器时第一电源总线的寄生电阻的影响。 第一个电力总线已经通过使用低电阻连接形成和互连到第二电力总线进行了修改，该低电阻连接形成为跨接或在共同的返回下。 第二电源总线在每一端连接到预定电压，而第一电源总线通过串联镇流电阻器在每一端连接到相同的预定电压。