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    • 5. 发明授权
    • Systems and methods for controlling and testing jetting stability in inkjet print heads
    • 用于控制和测试喷墨打印头喷射稳定性的系统和方法
    • US07857413B2
    • 2010-12-28
    • US12041658
    • 2008-03-03
    • Bassam Shamoun
    • Bassam Shamoun
    • B41J29/393
    • B41J2/04581B41J2/04541
    • The present invention provides systems, methods, and apparatus for monitoring and controlling a slew rate of a voltage signal provided to a PZT capacitor of a print head. The system includes a digital driver circuit adapted to generate a signal indicating a nominal slew rate, a probe circuit for measuring a firing pulse voltage signal provided to the capacitor, a comparator coupled to the digital driver and the probe circuit comparing a measured slew rate with the nominal slew rate generating a signal indicating a difference between the measured slew rate and the nominal slew rate, an analog driver circuit coupled to the comparator adapted to adjust the slew rate of the voltage signal in response to the difference signal, and an analog/digital converter adapted to sample the voltage signal output from the probe circuit and to provide an output for diagnostic purposes. Numerous other features and aspects are disclosed.
    • 本发明提供了用于监视和控制提供给打印头的PZT电容器的电压信号的转换速率的系统,方法和装置。 该系统包括适于生成表示标称压摆率的信号的数字驱动器电路,用于测量提供给电容器的点火脉冲电压信号的探针电路,耦合到数字驱动器的比较器和探针电路,将测量的转换速率与 所述标称转换速率产生指示所述测量的转换速率和所述标称转换速率之间的差的信号;耦合到所述比较器的模拟驱动器电路,所述模拟驱动器电路响应于所述差分信号而调整所述电压信号的转换速率;以及模拟/ 数字转换器,其适于对从探针电路输出的电压信号进行采样,并提供用于诊断目的的输出。 公开了许多其他特征和方面。
    • 7. 发明申请
    • TARGETED TEMPERATURE COMPENSATION IN CHEMICAL VAPOR DEPOSITION SYSTEMS
    • 化学蒸气沉积系统中的目标温度补偿
    • US20130167769A1
    • 2013-07-04
    • US13340226
    • 2011-12-29
    • Bassam Shamoun
    • Bassam Shamoun
    • C30B25/10C30B25/16
    • C30B25/10C30B25/16
    • Targeted temperature compensation for use with a chemical vapor deposition (CVD) apparatus. A localized temperature monitoring system is configured to provide localized temperature information representing surface temperatures of portions of the one or more wafers on a wafer carrier while the wafer carrier is rotating in a CVD process. A temperature profiling system is configured to generate a temperature profile that is indicative of localized cold spots on a surface of the one or more wafers. The temperature profile is based on the localized temperature information. A targeted heating system is configured to selectively apply localized heat to the localized cold spots dynamically based on the temperature profile such that a thermal distribution of the surface of the one or more wafers is made more uniform while a CVD process is carried out on the CVD apparatus.
    • 用于化学气相沉积(CVD)设备的目标温度补偿。 局部温度监测系统被配置为提供局部温度信息,其表示晶片载体在CVD工艺中旋转时晶片载体上的一个或多个晶片的部分的表面温度。 温度分布系统被配置为产生指示一个或多个晶片的表面上的局部冷点的温度分布。 温度曲线基于局部温度信息。 目标加热系统被配置为基于温度分布动态地选择性地将局部热量施加到局部冷点,使得一个或多个晶片的表面的热分布更加均匀,同时对CVD进行CVD工艺 仪器。
    • 8. 发明授权
    • System and method for reliability testing and troubleshooting inkjet printers
    • 喷墨打印机的可靠性测试和故障排除的系统和方法
    • US07637587B2
    • 2009-12-29
    • US11846770
    • 2007-08-29
    • Bassam Shamoun
    • Bassam Shamoun
    • B41J29/393
    • B41J29/393B41J2/0451B41J2/04555B41J2/04581
    • Systems, methods and apparatus are provided for reliability testing an inkjet printing system. The invention includes a testing interface, a print head coupled to the testing interface, printer control electronics coupled to the testing interface and coupled to the print head via the testing interface, the printer control electronics adapted to transmit a firing voltage signal through the testing interface to the print head, and a measurement apparatus coupled to the testing interface. The testing interface includes an input path for receiving the firing voltage signal from the printer control electronics, the input path splitting into a first path coupled to the print head and a second path coupled to the measurement apparatus. Numerous other aspects are disclosed.
    • 提供了用于可靠性测试喷墨打印系统的系统,方法和装置。 本发明包括测试接口,耦合到测试接口的打印头,耦合到测试接口的打印机控制电子器件,以及经由测试接口耦合到打印头的打印机控制电子器件,适于通过测试接口传送点火电压信号 到打印头,以及耦合到测试界面的测量装置。 测试接口包括用于接收来自打印机控制电子装置的点火电压信号的输入路径,输入路径分为耦合到打印头的第一路径和耦合到测量装置的第二路径。 公开了许多其他方面。