公开(公告)号：US08004917B2

公开(公告)日：2011-08-23

申请号：US12235467

申请日：2008-09-22

Applicant: Feng Pan ,  Yuxin Wang ,  Jonathan H. Huynh ,  Albert Chang ,  Khin Htoo ,  Qui Vi Nguyen

Inventor： Feng Pan ,  Yuxin Wang ,  Jonathan H. Huynh ,  Albert Chang ,  Khin Htoo ,  Qui Vi Nguyen

IPC: G11C7/04

CPC classification number: G11C8/08 ,  G11C5/147 ,  G11C16/30

Abstract: A circuit and corresponding method for providing a reference voltage are presented. The circuit includes a current source having a magnitude with positive temperature correlation connected to a node, and a diode element connected between the node and ground, where the node supplies the reference voltage. The circuit also includes a variable resistance connected to receive an input indicative of the circuit temperature and through which the diode element is connected to the node. The value of the variable resistance is adjusted based upon the circuit temperature input. The circuit is useful for application as a peripheral circuitry, such as on a flash or other non-volatile memory and other circuits requiring an on-chip reference voltage source.

Abstract translation: 提出了一种用于提供参考电压的电路和相应的方法。 电路包括具有连接到节点的具有正温度相关幅度的电流源，以及连接在节点和地之间的二极管元件，其中节点提供参考电压。 电路还包括可变电阻，其连接以接收指示电路温度的输入，并且二极管元件通过该电阻连接到节点。 可变电阻的值根据电路温度输入进行调整。 该电路可用作外围电路，例如闪存或其他非易失性存储器以及需要片上参考电压源的其他电路。

公开(公告)号：US20110005351A1

公开(公告)日：2011-01-13

申请号：US12922091

申请日：2009-03-09

Applicant: Yuxin Wang ,  Juren Liu

Inventor： Yuxin Wang ,  Juren Liu

IPC: C22B4/06 ,  B22D41/01 ,  C22B4/08 ,  B22D41/04 ,  B22D41/08 ,  B22D41/16

CPC classification number: B22D25/06 ,  B22D41/005 ,  B22D41/01 ,  B22D41/02 ,  B22D41/04 ,  C21C1/10 ,  C21C1/105 ,  C22B9/00 ,  F27B3/20 ,  F27D3/14 ,  F27D11/00 ,  F27D11/04 ,  F27D11/06 ,  Y02P10/138 ,  Y02P10/212

Abstract: A method for treating spheroidal graphite iron includes the step: pouring molten spheroidal graphite iron into a pouring electrical furnace (1); covering the molten spheroidal graphite iron (5) with alkali slag (6) which is melted at high temperature and rich in alkali earth metal ion, rare earth metal ion, or mixture of them; connecting the molten spheroidal graphite iron (5) with the negative pole of the direct current source by one pole (7); connecting the alkali slag (6) with the positive pole of the direct current source by another pole (4), treating the molten spheroidal graphite iron (5) with the alkali slag (6) which is used as electrolyte. The method can prevent the spheroidized fading velocity of the spheroidal graphite iron. The pouring electrical furnace can be used for treating the molten spheroidal graphite iron.

Abstract translation: 一种处理球墨铸铁的方法包括以下步骤：将熔融的球状石墨铁浇注到浇注电炉（1）中; 用高温熔融的碱渣（6）覆盖熔融的球状石墨铁（5），富含碱土金属离子，稀土金属离子或它们的混合物; 将熔融的球状石墨铁（5）与直流电源的负极连接一个极（7）; 通过另一个极（4）将碱渣（6）与直流源的正极连接，用作为电解质的碱渣（6）处理熔融的球状石墨铁（5）。 该方法可以防止球墨铸铁的球化褪色速度。 浇注电炉可用于处理熔融球墨铸铁。

公开(公告)号：US07800072B2

公开(公告)日：2010-09-21

申请号：US11278836

申请日：2006-04-06

Applicant: Wenbing Yun ,  Yuxin Wang ,  David R. Trapp

Inventor： Wenbing Yun ,  Yuxin Wang ,  David R. Trapp

IPC: G01T1/20

CPC classification number: G01T1/2002 ,  G01T1/20

Abstract: A scintillated CCD detector system for imaging x rays uses x-rays having a photon energy in the range of 1 to 20 keV. The detector differs from existing systems in that it provides extremely high resolution of better than a micrometer, and high detection quantum efficiency of up to 95%. The design of this detector also allows it to function as an energy filter to remove high-energy x-rays. This detector is useful in a wide range of applications including x-ray imaging, spectroscopy, and diffraction. The scintillator optical system has scintillator material with a lens system for collecting the light that is generated in the scintillator material. A substrate is used for spacing the scintillator material from the lens system.

Abstract translation: 用于对X射线成像的闪烁CCD检测器系统使用具有在1至20keV范围内的光子能量的X射线。 检测器与现有系统不同之处在于它提供比千分尺更高的分辨率，高达95％的高检测量子效率。 该检测器的设计也可以用作能量过滤器，以去除高能X射线。 该检测器可用于广泛的应用，包括X射线成像，光谱和衍射。 闪烁体光学系统具有闪烁体材料，其具有用于收集闪烁体材料中产生的光的透镜系统。 衬底用于将闪烁体材料与透镜系统间隔开。

公开(公告)号：US20080273662A1

公开(公告)日：2008-11-06

申请号：US11774183

申请日：2007-07-06

Applicant: Wenbing Yun ,  Yuxin Wang ,  Srivatsan Seshadri ,  Kenneth W. Nill

Inventor： Wenbing Yun ,  Yuxin Wang ,  Srivatsan Seshadri ,  Kenneth W. Nill

IPC: G01N23/201

CPC classification number: G01N23/201 ,  G03F7/70625

Abstract: CD-GISAXS achieves reduced measurement times by increasing throughput using longer wavelength radiation (˜12×, for example) such as x-rays in reflective geometry to increase both the collimation acceptance angle of the incident beams and the scattering signal strength, resulting in a substantial combined throughput gain. This wavelength selection and geometry can result in a dramatic reduction in measurement time. Furthermore, the capabilities of the CD-GISAXS can be extended to meet many of the metrology needs of future generations of semiconductor manufacturing and nanostructure characterization, for example.

Abstract translation: CD-GISAXS通过增加使用较长波长辐射（例如约12x）（例如反射几何形状的x射线）的吞吐量来实现缩短的测量时间，以增加入射光束的准直接收角和散射信号强度，从而导致大量 组合吞吐量增益。 这种波长选择和几何结构可以大大减少测量时间。 此外，CD-GISAXS的功能可以扩展，以满足未来几代半导体制造和纳米结构表征的许多计量需求。

公开(公告)号：US07394890B1

公开(公告)日：2008-07-01

申请号：US10983415

申请日：2004-11-08

Applicant: Yuxin Wang ,  Wenbing Yun ,  Frederick William Duewer

Inventor： Yuxin Wang ,  Wenbing Yun ,  Frederick William Duewer

IPC: G21K1/06

CPC classification number: G21K7/00 ,  G21K1/06 ,  G21K2201/067 ,  G21K2207/005

Abstract: An x-ray imaging system uses particular emission lines that are optimized for imaging specific metallic structures in a semiconductor integrated circuit structures and optimized for the use with specific optical elements and scintillator materials. Such a system is distinguished from currently-existing x-ray imaging systems that primarily use the integral of all emission lines and the broad Bremstralung radiation. The disclosed system provides favorable imaging characteristics such as ability to enhance the contrast of certain materials in a sample, to use different contrast mechanisms in a single imaging system, and to increase the throughput of the system.

Abstract translation: X射线成像系统使用针对半导体集成电路结构中的特定金属结构进行成像而优化的特定发射线，并针对特定的光学元件和闪烁体材料进行优化。 这种系统与目前存在的主要使用所有发射线和广泛的布氏体辐射的整体的X射线成像系统不同。 所公开的系统提供有利的成像特征，例如增强样品中某些材料的对比度的能力，以在单个成像系统中使用不同的对比度机制，并且增加系统的吞吐量。

公开(公告)号：US20080094694A1

公开(公告)日：2008-04-24

申请号：US11958544

申请日：2007-12-18

Applicant: Wenbing Yun ,  Yuxin Wang ,  Michael Feser ,  Alan Lyon

Inventor： Wenbing Yun ,  Yuxin Wang ,  Michael Feser ,  Alan Lyon

IPC: G02B27/44

CPC classification number: G02B27/4211 ,  G02B3/08 ,  G02B27/4272 ,  G03F7/0005 ,  Y10S438/975

Abstract: Methods for fabricating refractive element(s) and aligning the elements in a compound optic, typically to a zone plate element. The techniques are used for fabricating micro refractive, such as Fresnel, optics and compound optics including two or more optical elements for short wavelength radiation. One application is the fabrication of the Achromatic Fresnel Optic (AFO). Techniques for fabricating the refractive element generally include: 1) ultra-high precision mechanical machining, e.g,. diamond turning; 2) lithographic techniques including gray-scale lithography and multi-step lithographic processes; 3) high-energy beam machining, such as electron-beam, focused ion beam, laser, and plasma-beam machining; and 4) photo-induced chemical etching techniques. Also addressed are methods of aligning the two optical elements during fabrication and methods of maintaining the alignment during subsequent operation.

Abstract translation: 用于制造折射元件并将复合光学元件中的元件对准的方法，通常与区域板元件对准。 这些技术用于制造微折射，例如菲涅尔，光学和复合光学器件，包括用于短波长辐射的两个或更多个光学元件。 一种应用是制造消色差菲涅耳光（AFO）。 用于制造折射元件的技术通常包括：1）超高精度机械加工，例如 钻石车削 2）光刻技术，包括灰阶光刻和多步光刻工艺; 3）高能束加工，如电子束，聚焦离子束，激光和等离子束加工; 和4）光诱导化学蚀刻技术。 还涉及在制造期间对准两个光学元件的方法以及在随后的操作期间维持对准的方法。

公开(公告)号：US07286640B2

公开(公告)日：2007-10-23

申请号：US10990198

申请日：2004-11-16

Applicant: Wenbing Yun ,  Yuxin Wang ,  David Dean Scott

Inventor： Wenbing Yun ,  Yuxin Wang ,  David Dean Scott

IPC: H05G1/64 ,  G01T1/20

CPC classification number: G01T1/202 ,  G01T1/2018 ,  G21K2207/005

Abstract: A digital dual-band detector functions as an imaging platform capable of extracting hard and soft tissue images, for example. The detector has a first detector system comprising a first scintillator for converting x-rays from a sample to an first optical signal, and a first detector for detecting the first optical signal in combination with a second detector system comprising a second scintillator for converting x-rays from the sample and passing through the first scintillator to a second optical signal, and a second detector for detecting the second optical signal. The detector can facilitate the implementation and deployment of recent developments and can permit low cost practical deployment in clinical applications as well as biomedical research applications where significant improvement in spatial resolution and image contrast is required.

Abstract translation: 例如，数字双频带检测器用作能够提取硬和软组织图像的成像平台。 检测器具有第一检测器系统，该第一检测器系统包括用于将来自样品的x射线转换成第一光信号的第一闪烁器，以及用于与第二检测器系统一起检测第一光信号的第一检测器，该第二检测器系统包括用于将x- 来自样品的光并通过第一闪烁体到第二光信号;以及第二检测器，用于检测第二光信号。 检测器可以促进近期发展的实施和部署，并且可以允许临床应用中的低成本实际部署以及需要显着改善空间分辨率和图像对比度的生物医学研究应用。

公开(公告)号：US07119953B2

公开(公告)日：2006-10-10

申请号：US10331108

申请日：2002-12-27

Applicant: Wenbing Yun ,  Yuxin Wang

Inventor： Wenbing Yun ,  Yuxin Wang

IPC: G02B21/06 ,  G02K7/00 ,  G02B21/00 ,  G02K1/06

CPC classification number: A61B6/484 ,  A61B6/4092 ,  G21K7/00 ,  G21K2207/005 ,  Y10S359/90 ,  Y10S438/975

Abstract: A phase contrast x-ray microscope has a phase plate that is placed in proximity of and attached rigidly to the objective to form a composite optic. This enables easier initial and long-term maintenance of alignment of the microscope. In one example, they are fabricated on the same high-transmissive substrate. The use of this composite optic allows for lithographic-based alignment that will not change over the lifetime of the instrument. Also, in one configuration, the phase plate is located between the test object and the objective.

Abstract translation: 相位X射线显微镜具有相位板，其被放置在物镜附近并刚性地附接到物镜上以形成复合光学元件。 这使得显微镜对准的初始和长期维护变得容易。 在一个示例中，它们被制造在相同的高透光性基板上。 使用这种复合光学器件允许在仪器寿命期内不会改变的基于光刻的对准。 而且，在一种配置中，相位板位于测试对象和目标之间。

公开(公告)号：US20060192129A1

公开(公告)日：2006-08-31

申请号：US11278839

申请日：2006-04-06

Applicant: Wenbing Yun ,  Yuxin Wang ,  David Trapp

Inventor： Wenbing Yun ,  Yuxin Wang ,  David Trapp

IPC: G01T1/20

CPC classification number: G01T1/2002 ,  G01T1/20

Abstract: A scintillated CCD detector system for imaging x rays uses x-rays having a photon energy in the range of 1 to 20 keV. The detector differs from existing systems in that it provides extremely high resolution of better than a micrometer, and high detection quantum efficiency of up to 95%. The design of this detector also allows it to function as an energy filter to remove high-energy x-rays. This detector is useful in a wide range of applications including x-ray imaging, spectroscopy, and diffraction. The scintillator optical system has scintillator material with a lens system for collecting the light that is generated in the scintillator material. A substrate is used for spacing the scintillator material from the lens system.

Abstract translation: 用于对X射线成像的闪烁CCD检测器系统使用具有在1至20keV范围内的光子能量的X射线。 检测器与现有系统不同之处在于它提供比千分尺更高的分辨率，高达95％的高检测量子效率。 该检测器的设计也可以用作能量过滤器，以去除高能X射线。 该检测器可用于广泛的应用，包括X射线成像，光谱和衍射。 闪烁体光学系统具有闪烁体材料，其具有用于收集闪烁体材料中产生的光的透镜系统。 衬底用于将闪烁体材料与透镜系统间隔开。

公开(公告)号：US07057187B1

公开(公告)日：2006-06-06

申请号：US10704382

申请日：2003-11-07

Applicant: Wenbing Yun ,  Yuxin Wang ,  David R. Trapp

Inventor： Wenbing Yun ,  Yuxin Wang ,  David R. Trapp

IPC: G01J1/58

CPC classification number: G01T1/2002 ,  G01T1/20

Abstract: A scintillated CCD detector system for imaging x rays uses x-rays having a photon energy in the range of 1 to 20 keV. The detector differs from existing systems in that it provides extremely high resolution of better than a micrometer, and high detection quantum efficiency of up to 95%. The design of this detector also allows it to function as an energy filter to remove high-energy x-rays. This detector is useful in a wide range of applications including x-ray imaging, spectroscopy, and diffraction. The scintillator optical system has scintillator material with a lens system for collecting the light that is generated in the scintillator material. A substrate is used for spacing the scintillator material from the lens system.

Abstract translation: 用于对X射线成像的闪烁CCD检测器系统使用具有在1至20keV范围内的光子能量的X射线。 检测器与现有系统不同之处在于它提供比千分尺更高的分辨率，高达95％的高检测量子效率。 该检测器的设计也可以用作能量过滤器，以去除高能X射线。 该检测器可用于广泛的应用，包括X射线成像，光谱和衍射。 闪烁体光学系统具有闪烁体材料，其具有用于收集闪烁体材料中产生的光的透镜系统。 衬底用于将闪烁体材料与透镜系统间隔开。