Device including a micromechanical resonator having an operating frequency and method of extending same
    1.
    发明授权
    Device including a micromechanical resonator having an operating frequency and method of extending same 有权
    装置包括具有工作频率的微机械谐振器及其延伸方法

    公开(公告)号:US06249073B1

    公开(公告)日:2001-06-19

    申请号:US09482670

    申请日:2000-01-13

    IPC分类号: H02N100

    摘要: A flexural-mode, micromechanical resonator utilizing a non-intrusive support structure to achieve measured Q's as high as 8,400 at VHF frequencies from 30-90 MHz is manufactured using polysilicon surface micromachining technology. Also, a method for extending the operating frequency of the resonator as well as other types of micromechanical resonators is disclosed. One embodiment of the method is called a differential-signaling technique. The other embodiment of the method is called a dimple-down technique. The support structure includes one or more torsional-mode support springs in the form of beams that effectively isolate a resonator beam from its anchors via quarter-wavelength impedance transformations, minimizing anchor dissipation and allowing the resonator to achieve high Q with high stiffness in the VHF frequency range. The resonator also includes one or more spacers in the form of dimples formed on the flexural resonator beam or the substrate. In operation, the dimples determine a capacitive-transducer gap of the resonator. When a large DC-bias voltage is applied between a drive electrode and the resonator beam, the dimples provide a predetermined minimum distance between the flexural resonator beam and the drive electrode.

    摘要翻译: 使用多晶硅表面微机械加工技术制造了使用非侵入式支撑结构的挠曲模式微机械谐振器,以在30-90MHz的VHF频率下实现高达8,400的测量Q。 此外,公开了一种用于扩展谐振器的工作频率以及其它类型的微机械谐振器的方法。 该方法的一个实施例称为差分信号技术。 该方法的另一个实施例称为凹陷技术。 支撑结构包括一个或多个波束形式的扭转模式支撑弹簧,其通过四分之一波长阻抗变换有效地将谐振器束与其锚定器隔离,从而最小化锚固耗散,并允许谐振器在VHF中实现高刚度的高Q 频率范围。 谐振器还包括形成在弯曲谐振器梁或衬底上的凹坑形式的一个或多个间隔物。 在操作中,凹坑确定谐振器的电容 - 换能器间隙。 当在驱动电极和谐振器光束之间施加大的直流偏置电压时,凹坑在弯曲谐振器光束和驱动电极之间提供预定的最小距离。

    Method and system for locally annealing a microstructure formed on a substrate and device formed thereby
    2.
    发明授权
    Method and system for locally annealing a microstructure formed on a substrate and device formed thereby 有权
    用于局部退火形成在基板上的微结构和由此形成的器件的方法和系统

    公开(公告)号:US06169321A

    公开(公告)日:2001-01-02

    申请号:US09305513

    申请日:1999-05-05

    IPC分类号: H01L2940

    CPC分类号: H03H9/02401

    摘要: A batch-compatible, post-fabrication annealing method and system are described that can be used to trim the resonance frequency and enhance the quality factor of mechanical microstructures, particularly micromechanical structures, such as micromechanical resonators. The technique involves running a current through a micromechanical structure, or through a nearby microstructure (e.g., a nearby resistor), thereby dissipating power and heating the structure to temperatures high enough to change its microstructure and/or its material properties, which then lead to changes in the microstructure's resonance frequency and quality factor. For micromechanical structures, this technique is particularly useful, since it allows for convenient, simultaneous trimming of many microstructures all at once, and can be implemented via the simple application of a voltage across the anchor points of a micromechanical structure.

    摘要翻译: 描述了一种批量兼容的后制造退火方法和系统,其可用于修整共振频率并增强机械微观结构的质量因子,特别是微机械结构,例如微机械谐振器。 该技术涉及通过微机械结构或通过附近的微结构(例如,附近的电阻器)运行电流,从而耗散功率并将结构加热到高到足以改变其微结构和/或其材料性质的温度,其然后导致 微观结构的共振频率和质量因子的变化。 对于微机械结构,该技术特别有用,因为它允许一次性地方便地同时修整许多微结构,并且可以通过简单地在微机械结构的锚点上施加电压来实现。

    Method and system for locally annealing a microstructure formed on a
substrate and device formed thereby
    3.
    发明授权
    Method and system for locally annealing a microstructure formed on a substrate and device formed thereby 失效
    用于局部退火形成在基板上的微结构和由此形成的器件的方法和系统

    公开(公告)号:US5976994A

    公开(公告)日:1999-11-02

    申请号:US874785

    申请日:1997-06-13

    CPC分类号: H03H9/02401

    摘要: A batch-compatible, post-fabrication annealing method and system are described that can be used to trim the resonance frequency and enhance the quality factor of mechanical microstructures, particularly micromechanical structures, such as micromechanical resonators. The technique involves running a current through a micromechanical structure, or through a nearby microstructure (e.g., a nearby resistor), thereby dissipating power and heating the structure to temperatures high enough to change its microstructure and/or its material properties, which then lead to changes in the microstructure's resonance frequency and quality factor. For micromechanical structures, this technique is particularly useful, since it allows for convenient, simultaneous trimming of many microstructures all at once, and can be implemented via the simple application of a voltage across the anchor points of a micromechanical structure.

    摘要翻译: 描述了一种批量兼容的后制造退火方法和系统,其可用于修整共振频率并增强机械微观结构的质量因子,特别是微机械结构,例如微机械谐振器。 该技术涉及通过微机械结构或通过附近的微结构(例如,附近的电阻器)运行电流,从而耗散功率并将结构加热到高到足以改变其微结构和/或其材料性质的温度,其然后导致 微观结构的共振频率和质量因子的变化。 对于微机械结构,该技术特别有用,因为它允许一次性地方便地同时修整许多微结构,并且可以通过简单地在微机械结构的锚点上施加电压来实现。

    Process for Producing Phenol
    6.
    发明申请
    Process for Producing Phenol 有权
    生产苯酚的方法

    公开(公告)号:US20150307427A1

    公开(公告)日:2015-10-29

    申请号:US14110859

    申请日:2011-12-15

    申请人: Kun Wang

    发明人: Kun Wang

    摘要: In a process for producing phenol, cyclohexylbenzene is contacted with an oxygen-containing compound in the presence of an oxidation catalyst comprising a cyclic imide under oxidation conditions effective to produce a product comprising cyclohexylbenzene hydroperoxide and unreacted cyclic imide catalyst. Without removing all the unreacted cyclic imide catalyst, at least a portion of the product is contacted with an acidic molecular sieve under conditions effective to adsorb at least a portion of the unreacted cyclic imide and to convert at least part of the cyclohexylbenzene hydroperoxide in the product portion into phenol and cyclohexanone.

    摘要翻译: 在生产苯酚的方法中,在有效产生包含环己基苯氢过氧化物和未反应的环状酰亚胺催化剂的产物的氧化条件下,环己基苯在含有环状酰亚胺的氧化催化剂存在下与含氧化合物接触。 在不除去所有未反应的环状酰亚胺催化剂的情况下,至少一部分产物在有效吸附至少一部分未反应的环状酰亚胺的条件下与酸性分子筛接触,并将至少部分环己基苯氢过氧化物转化成产物 部分成苯酚和环己酮。

    Paper medium identifying device and identifying method
    7.
    发明授权
    Paper medium identifying device and identifying method 有权
    纸介质识别装置和识别方法

    公开(公告)号:US09122944B2

    公开(公告)日:2015-09-01

    申请号:US14233657

    申请日:2012-10-26

    摘要: A paper medium identifying device and an identifying method. The paper medium identifying device comprises an image data obtaining unit, a faulty wire detecting unit, an image dividing unit, a standard template data storage unit, a comprehensive analyzing unit, a new template generating unit and a judging unit. The paper medium identifying device divides the standard template into new sub-templates by dividing the template from a faulty wire position as margin, and then matches the sub-templates with a papery medium image which being identified so as to avoid the influence of faulty wires on the template match identification and improve the acceptance rate of the papery medium identifying device.

    摘要翻译: 纸介质识别装置和识别方法。 纸介质识别装置包括图像数据获取单元,故障线检测单元,图像分割单元,标准模板数据存储单元,综合分析单元,新模板生成单元和判断单元。 纸介质识别装置通过将模板与有缺陷的线位置划分为边距来将标准模板分成新的子模板,然后将子模板与被标识的纸质介质图像相匹配,以避免错误的线的影响 对模板匹配识别,提高纸质介质识别装置的验收率。

    Method and system for analyzing parallelism of program code
    10.
    发明授权
    Method and system for analyzing parallelism of program code 有权
    分析程序代码并行性的方法和系统

    公开(公告)号:US09047114B2

    公开(公告)日:2015-06-02

    申请号:US13613572

    申请日:2012-09-13

    IPC分类号: G06F11/34 G06F9/45

    CPC分类号: G06F8/456

    摘要: Methods and systems are provided for analyzing parallelism of program code. According to a method, the sequential execution of the program code is simulated so as to trace the execution procedure of the program code, and parallelism of the program code is analyzed based on the result of the trace to the execution procedure of the program code. Execution information of the program code is collected by simulating the sequential execution of the program code, and parallelism of the program code is analyzed based on the collected execution information, so as to allow programmers to perform parallel task partitioning of the program code with respect to a multi-core architecture more effectively, thus increasing the efficiency of parallel software development.

    摘要翻译: 提供了方法和系统来分析程序代码的并行性。 根据一种方法,模拟程序代码的顺序执行,以便跟踪程序代码的执行过程,并根据对程序代码的执行过程的跟踪结果来分析程序代码的并行性。 通过模拟程序代码的顺序执行来收集程序代码的执行信息,并且基于所收集的执行信息来分析程序代码的并行性,以便程序员能够相对于程序代码执行程序代码的并行任务划分 多核架构更有效,从而提高并行软件开发的效率。