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    • 1. 发明授权
    • Non-destructive in-situ elemental profiling
    • 非破坏性原位元素分析
    • US07256399B2
    • 2007-08-14
    • US10907591
    • 2005-04-07
    • Siddhartha PandaMichael R. SieversRichard S. Wise
    • Siddhartha PandaMichael R. SieversRichard S. Wise
    • G01N23/227
    • G01N23/2273
    • A non-destructive in-situ elemental profiling of a layer in a set of layers method and system are disclosed. In one embodiment, a first emission of a plurality of photoelectrons is caused from the layer to be elementally profiled. An elemental profile of the layer is determined based on the emission. In another embodiment, a second emission of a plurality of photoelectrons is also received from the layer, and an elemental profile is determined by comparison of the resulting signals. A process that is altering the layer can then be controlled “on-the-fly” to obtain a desired material composition. Since the method can be employed in-situ and is non-destructive, it reduces turn around time and lowers wafer consumption. The invention also records the composition of all processed wafers, hence, removing the conventional statistical sampling problem.
    • 公开了一组层中的层的非破坏性原位元素分析方法和系统。 在一个实施例中,多个光电子的第一次发射是从该层进行元素分析。 基于发射确定层的元素分布。 在另一个实施例中,也从该层接收多个光电子的第二次发射,并且通过比较所得到的信号来确定元素分布。 然后可以“即时”控制改变层的方法以获得所需的材料组成。 由于该方法可以原位使用并且是非破坏性的,所以可以减少周转时间并降低晶片消耗。 本发明还记录了所有加工晶片的组成,因此,去除了常规统计抽样问题。
    • 4. 发明授权
    • Gas filled reactive atomic force microscope probe
    • 充气反应原子力显微镜探针
    • US07278300B2
    • 2007-10-09
    • US11162958
    • 2005-09-29
    • Michael R. SieversSiddhartha PandaRichard Wise
    • Michael R. SieversSiddhartha PandaRichard Wise
    • G01B5/28
    • G01Q60/38
    • An atomic force microscope (AFM) having a hollowed cantilever ending in a hollowed tip is described, wherein the end of the tip is immersed in a liquid. The AFM includes a gas source that provides and controls the flow of gas into the hollowed tip. The flow rate of the gas is regulated to form and sustain a static bubble at the end of the hollowed tip. The formation of the static bubble is verified optically. A gas control manifold allows an easy switch of gasses that are fed into the probe tip. The gas that is introduced acts like a chemically modified tip, and is selected to increase the deflection signal for the material of interest. The tip of the present invention is a highly versatile AFM tool that is easily adjusted to provide optimized imaging for a wide variety of materials, in contrast with standard AFMs that require a plethora of chemically modified tips to obtain equivalent results. Moreover, there is a much lower propensity for the tip to damage the sample or to be damaged from inadvertent contact with the surface of the sample.
    • 描述了一种具有终止在中空尖端中的中空悬臂的原子力显微镜(AFM),其中尖端的端部浸入液体中。 AFM包括提供和控制气体进入中空尖端的气体源。 调节气体的流速以在中空末端的端部形成并维持静止气泡。 静态气泡的形成被光学验证。 气体控制歧管允许容易地切换进入探针尖端的气体。 被引入的气体类似于化学改性的尖端,并且被选择以增加感兴趣的材料的偏转信号。 本发明的尖端是一种高度通用性的AFM工具,其易于调节以为各种材料提供优化的成像,与需要大量化学修饰的尖端以获得等效结果的标准AFM相反。 此外,尖端损坏样品或由于与样品表面无意接触而损坏的倾向低得多。
    • 8. 发明申请
    • METHOD FOR PRECISE TEMPERATURE CYCLING IN CHEMICAL / BIOCHEMICAL PROCESSES
    • 化学/生化过程中精确循环的方法
    • US20080118955A1
    • 2008-05-22
    • US11858280
    • 2007-09-20
    • Siddhartha PandaRichard S. Wise
    • Siddhartha PandaRichard S. Wise
    • C12P19/34B01J19/12
    • C12Q1/686B01L7/52B01L7/5255B01L2300/1872C12Q2523/313
    • A method for implementing a temperature cycling operation for a biochemical sample to be reacted includes applying an infrared (IR) heating source to the biochemical sample to be reacted at a first infrared wavelength selected so as to generate a first desired temperature for a first duration and produce a first desired reaction within the biochemical sample; following the first desired reaction, applying the infrared (IR) heating source to the biochemical sample at a second infrared wavelength selected so as to generate a second desired temperature for a second duration and produce a second desired reaction within the biochemical sample; and wherein the first and second wavelengths generated by the IR source are selected to be coincident with corresponding absorptive wavelengths of the biochemical sample so as to heat the biochemical sample without directly heating a fluid medium containing the biochemical sample.
    • 用于实施待反应的生物化学样品的温度循环操作的方法包括将红外(IR)加热源施加到生物化学样品以在被选择的第一红外波长处反应,以便产生第一期望的第一期望温度,以及 在生物化学样品中产生第一个所需的反应; 在第一期望的反应之后,以选择的第二红外波长将红外(IR)加热源施加到生物化学样品,以产生第二期望的第二期望温度,并在生化试样中产生第二所需反应; 并且其中由IR源产生的第一和第二波长被选择为与生物化学样品的相应吸收波长一致,以便加热生化样品而不直接加热含有生物化学样品的流体介质。