Passivating overcoat bilayer for multilayer reflective coatings for
extreme ultraviolet lithography
    12.
    发明授权
    Passivating overcoat bilayer for multilayer reflective coatings for extreme ultraviolet lithography 失效
    钝化大衣双层多层反射涂层用于极紫外光刻

    公开(公告)号:US5958605A

    公开(公告)日:1999-09-28

    申请号:US969411

    申请日:1997-11-10

    摘要: A passivating overcoat bilayer is used for multilayer reflective coatings for extreme ultraviolet (EUV) or soft x-ray applications to prevent oxidation and corrosion of the multilayer coating, thereby improving the EUV optical performance. The overcoat bilayer comprises a layer of silicon or beryllium underneath at least one top layer of an elemental or a compound material that resists oxidation and corrosion. Materials for the top layer include carbon, palladium, carbides, borides, nitrides, and oxides. The thicknesses of the two layers that make up the overcoat bilayer are optimized to produce the highest reflectance at the wavelength range of operation. Protective overcoat systems comprising three or more layers are also possible.

    摘要翻译: 钝化大衣双层用于极紫外(EUV)或软X射线应用的多层反射涂层,以防止多层涂层的氧化和腐蚀,从而提高EUV光学性能。 外涂层双层包含至少一层抵抗氧化和腐蚀的元素或复合材料的顶层之下的硅或铍层。 顶层材料包括碳,钯,碳化物,硼化物,氮化物和氧化物。 构成外涂层双层的两层的厚度被优化以在操作的波长范围产生最高的反射率。 包括三层或更多层的保护性外涂层系统也是可能的。

    Apparatus and methods for determining optical tissue properties

    公开(公告)号:US10775308B2

    公开(公告)日:2020-09-15

    申请号:US11844551

    申请日:2007-08-24

    IPC分类号: G01N21/64 A61B5/00 G01N21/47

    摘要: Disclosed are apparatus and methods for determining accurate optical property values of turbid media. In one embodiment, the method includes (a) providing a light source, having a first wavelength and a known illumination power, sequentially at a plurality of specific illumination positions on a first surface of the specimen; (b) for each specific position of the light source, obtaining light emission measurements from a second surface of the specimen that is opposite the first surface, wherein the light emission measurements are obtained for a plurality of surface positions of the second surface; and (c) for each specific illumination position of the light source at the first surface of the specimen, determining one or more optical properties for the specimen based on the specific illumination position of the light source, the first wavelength of the light source, the known illumination power of the light source, and the obtained light emission measurements for such each specific illumination position. The optical properties for the plurality of specific illumination positions of the light source are individually determined for each specific illumination position of the light source.

    Imaging system
    14.
    发明授权
    Imaging system 有权
    成像系统

    公开(公告)号:US08825140B2

    公开(公告)日:2014-09-02

    申请号:US13397518

    申请日:2012-02-15

    IPC分类号: A61B6/00

    摘要: A method of investigating the location and size of a light-emitting source in a subject is disclosed. In practicing the method, one first obtains a light intensity profile by measuring, from a first perspective with a photodetector device, photons which (i) originate from the light-emitting source, (ii) travel through turbid biological tissue of the subject, and (iii) are emitted from a first surface region of interest of the subject. The light-intensity profile is matched against with a parameter-based biophotonic function, to estimate function parameters such as depth and size. The parameters so determined are refined using data other than the first measured light intensity profile, to obtain an approximate depth and size of the source in the subject. Also disclosed is an apparatus for carrying out the method.

    摘要翻译: 公开了一种调查受试者中发光源的位置和尺寸的方法。 在实施该方法时,首先通过用光电检测器件从第一个角度测量光源(i)来源于发光源,(ii)穿过受试者的混浊生物组织,以及 (iii)从对象的感兴趣的第一表面区域发射。 光强度曲线与基于参数的生物光子函数匹配,以估计诸如深度和大小的函数参数。 使用除第一测量光强度分布之外的数据来精确地确定如此确定的参数,以获得对象中源的近似深度和大小。 还公开了一种用于执行该方法的装置。

    Method and apparatus for 3-D imaging of internal light sources
    15.
    发明授权
    Method and apparatus for 3-D imaging of internal light sources 有权
    内部光源3-D成像的方法和装置

    公开(公告)号:US07860549B2

    公开(公告)日:2010-12-28

    申请号:US12569842

    申请日:2009-09-29

    IPC分类号: A61B6/03 A61B6/12

    摘要: The present invention provides systems and methods for obtaining a three-dimensional (3D) representation of one or more light sources inside a sample, such as a mammal. Mammalian tissue is a turbid medium, meaning that photons are both absorbed and scattered as they propagate through tissue. In the case where scattering is large compared with absorption, such as red to near-infrared light passing through tissue, the transport of light within the sample is described by diffusion theory. Using imaging data and computer-implemented photon diffusion models, embodiments of the present invention produce a 3D representation of the light sources inside a sample, such as a 3D location, size, and brightness of such light sources.

    摘要翻译: 本发明提供用于获得样品(例如哺乳动物)内的一个或多个光源的三维(3D)表示的系统和方法。 哺乳动物组织是一种混浊的培养基,这意味着光子在通过组织传播时被吸收和分散。 在与吸收相比散射大的情况下,例如通过组织的红色至近红外光,通过扩散理论描述样品内的光的传输。 使用成像数据和计算机实现的光子扩散模型,本发明的实施例产生样品内的光源的3D表示,例如这种光源的3D位置,尺寸和亮度。

    Method and apparatus for determining target depth, brightness and size within a body region
    17.
    发明授权
    Method and apparatus for determining target depth, brightness and size within a body region 有权
    用于确定身体区域内的目标深度,亮度和尺寸的方法和装置

    公开(公告)号:US07403812B2

    公开(公告)日:2008-07-22

    申请号:US10151463

    申请日:2002-05-17

    IPC分类号: A61B6/00

    摘要: A method of investigating the location and size of a light-emitting source in a subject is disclosed. In practicing the method, one first obtains a light intensity profile by measuring, from a first perspective with a photodetector device, photons which (i) originate from the light-emitting source, (ii) travel through turbid biological tissue of the subject, and (iii) are emitted from a first surface region of interest of the subject. The light-intensity profile is matched against with a parameter-based biophotonic function, to estimate function parameters such as depth and size. The parameters so determined are refined using data other than the first measured light intensity profile, to obtain an approximate depth and size of the source in the subject. Also disclosed is an apparatus for carrying out the method.

    摘要翻译: 公开了一种调查受试者中发光源的位置和尺寸的方法。 在实施该方法时,首先通过用光电检测器件从第一个角度测量光源(i)来源于发光源,(ii)穿过受试者的混浊生物组织,以及 (iii)从对象的感兴趣的第一表面区域发射。 光强度曲线与基于参数的生物光子函数匹配,以估计诸如深度和大小的函数参数。 使用除第一测量光强度分布之外的数据来精确地确定如此确定的参数,以获得对象中源的近似深度和大小。 还公开了一种用于执行该方法的装置。

    Repair of localized defects in multilayer-coated reticle blanks for extreme ultraviolet lithography
    20.
    发明授权
    Repair of localized defects in multilayer-coated reticle blanks for extreme ultraviolet lithography 有权
    修复用于极紫外光刻的多层涂层掩模版坯料中的局部缺陷

    公开(公告)号:US06821682B1

    公开(公告)日:2004-11-23

    申请号:US09669390

    申请日:2000-09-26

    IPC分类号: G03F900

    摘要: A method is provided for repairing defects in a multilayer coating layered onto a reticle blank used in an extreme ultraviolet lithography (EUVL) system. Using high lateral spatial resolution, energy is deposited in the multilayer coating in the vicinity of the defect. This can be accomplished using a focused electron beam, focused ion beam or a focused electromagnetic radiation. The absorbed energy will cause a structural modification of the film, producing a localized change in the film thickness. The change in film thickness can be controlled with sub-nanometer accuracy by adjusting the energy dose. The lateral spatial resolution of the thickness modification is controlled by the localization of the energy deposition. The film thickness is adjusted locally to correct the perturbation of the reflected field. For example, when the structural modification is a localized film contraction, the repair of a defect consists of flattening a mound or spreading out the sides of a depression.

    摘要翻译: 提供了一种用于修复分层到用于极紫外光刻(EUVL)系统的掩模版坯料上的多层涂层中的缺陷的方法。 使用高横向空间分辨率,能量沉积在缺陷附近的多层涂层中。 这可以使用聚焦电子束,聚焦离子束或聚焦电磁辐射来实现。 吸收的能量将导致膜的结构改性,产生膜厚度的局部变化。 通过调节能量剂量可以以亚纳米精度控制膜厚的变化。 厚度变化的横向空间分辨率由能量沉积的定位来控制。 局部调整膜厚以校正反射场的扰动。 例如,当结构改性是局部薄膜收缩时,缺陷的修复包括使平坦化的墩或扩展凹陷的侧面。